OGRE: Ogre::GpuProgramParameters Class Reference

| OGRE 14.5 Object-Oriented Graphics Rendering Engine

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Ogre::GpuProgramParameters Class Reference
Core » Materials

Collects together the program parameters used for a GpuProgram. More...

`#include <OgreGpuProgramParams.h>`

Inheritance diagram for Ogre::GpuProgramParameters:
[legend]

## Classes
struct | AutoConstantDefinition
| Structure defining an auto constant that's available for use in a parameters object. More...
class | AutoConstantEntry
| Structure recording the use of an automatic parameter. More...

## Public Types
enum | ACDataType { ACDT_NONE , ACDT_INT , ACDT_REAL }
| Defines the type of the extra data item used by the auto constant. More...
typedef std::vector< AutoConstantEntry > | AutoConstantList
enum | AutoConstantType { ACT_WORLD_MATRIX , ACT_INVERSE_WORLD_MATRIX , ACT_TRANSPOSE_WORLD_MATRIX , ACT_INVERSE_TRANSPOSE_WORLD_MATRIX , ACT_BONE_MATRIX_ARRAY_3x4 , ACT_WORLD_MATRIX_ARRAY_3x4 = ACT_BONE_MATRIX_ARRAY_3x4 , ACT_BONE_MATRIX_ARRAY , ACT_WORLD_MATRIX_ARRAY = ACT_BONE_MATRIX_ARRAY , ACT_BONE_DUALQUATERNION_ARRAY_2x4 , ACT_WORLD_DUALQUATERNION_ARRAY_2x4 = ACT_BONE_DUALQUATERNION_ARRAY_2x4 , ACT_BONE_SCALE_SHEAR_MATRIX_ARRAY_3x4 , ACT_WORLD_SCALE_SHEAR_MATRIX_ARRAY_3x4 = ACT_BONE_SCALE_SHEAR_MATRIX_ARRAY_3x4 , ACT_VIEW_MATRIX , ACT_INVERSE_VIEW_MATRIX , ACT_TRANSPOSE_VIEW_MATRIX , ACT_INVERSE_TRANSPOSE_VIEW_MATRIX , ACT_PROJECTION_MATRIX , ACT_INVERSE_PROJECTION_MATRIX , ACT_TRANSPOSE_PROJECTION_MATRIX , ACT_INVERSE_TRANSPOSE_PROJECTION_MATRIX , ACT_VIEWPROJ_MATRIX , ACT_INVERSE_VIEWPROJ_MATRIX , ACT_TRANSPOSE_VIEWPROJ_MATRIX , ACT_INVERSE_TRANSPOSE_VIEWPROJ_MATRIX , ACT_WORLDVIEW_MATRIX , ACT_INVERSE_WORLDVIEW_MATRIX , ACT_TRANSPOSE_WORLDVIEW_MATRIX , ACT_INVERSE_TRANSPOSE_WORLDVIEW_MATRIX , ACT_NORMAL_MATRIX , ACT_WORLDVIEWPROJ_MATRIX , ACT_INVERSE_WORLDVIEWPROJ_MATRIX , ACT_TRANSPOSE_WORLDVIEWPROJ_MATRIX , ACT_INVERSE_TRANSPOSE_WORLDVIEWPROJ_MATRIX , ACT_WORLDVIEWPROJ_MATRIX_ARRAY , ACT_RENDER_TARGET_FLIPPING , ACT_VERTEX_WINDING , ACT_FOG_COLOUR , ACT_FOG_PARAMS , ACT_SURFACE_AMBIENT_COLOUR , ACT_SURFACE_DIFFUSE_COLOUR , ACT_SURFACE_SPECULAR_COLOUR , ACT_SURFACE_EMISSIVE_COLOUR , ACT_SURFACE_SHININESS , ACT_SURFACE_ALPHA_REJECTION_VALUE , ACT_LIGHT_COUNT , ACT_AMBIENT_LIGHT_COLOUR , ACT_LIGHT_DIFFUSE_COLOUR , ACT_LIGHT_SPECULAR_COLOUR , ACT_LIGHT_ATTENUATION , ACT_SPOTLIGHT_PARAMS , ACT_LIGHT_POSITION , ACT_LIGHT_POSITION_OBJECT_SPACE , ACT_LIGHT_POSITION_VIEW_SPACE , ACT_LIGHT_DIRECTION , ACT_LIGHT_DIRECTION_OBJECT_SPACE , ACT_LIGHT_DIRECTION_VIEW_SPACE , ACT_LIGHT_DISTANCE_OBJECT_SPACE , ACT_LIGHT_POWER_SCALE , ACT_LIGHT_DIFFUSE_COLOUR_POWER_SCALED , ACT_LIGHT_SPECULAR_COLOUR_POWER_SCALED , ACT_LIGHT_DIFFUSE_COLOUR_ARRAY , ACT_LIGHT_SPECULAR_COLOUR_ARRAY , ACT_LIGHT_DIFFUSE_COLOUR_POWER_SCALED_ARRAY , ACT_LIGHT_SPECULAR_COLOUR_POWER_SCALED_ARRAY , ACT_LIGHT_ATTENUATION_ARRAY , ACT_LIGHT_POSITION_ARRAY , ACT_LIGHT_POSITION_OBJECT_SPACE_ARRAY , ACT_LIGHT_POSITION_VIEW_SPACE_ARRAY , ACT_LIGHT_DIRECTION_ARRAY , ACT_LIGHT_DIRECTION_OBJECT_SPACE_ARRAY , ACT_LIGHT_DIRECTION_VIEW_SPACE_ARRAY , ACT_LIGHT_DISTANCE_OBJECT_SPACE_ARRAY , ACT_LIGHT_POWER_SCALE_ARRAY , ACT_SPOTLIGHT_PARAMS_ARRAY , ACT_DERIVED_AMBIENT_LIGHT_COLOUR , ACT_DERIVED_SCENE_COLOUR , ACT_DERIVED_LIGHT_DIFFUSE_COLOUR , ACT_DERIVED_LIGHT_SPECULAR_COLOUR , ACT_DERIVED_LIGHT_DIFFUSE_COLOUR_ARRAY , ACT_DERIVED_LIGHT_SPECULAR_COLOUR_ARRAY , ACT_LIGHT_NUMBER , ACT_LIGHT_CASTS_SHADOWS , ACT_LIGHT_CASTS_SHADOWS_ARRAY , ACT_SHADOW_EXTRUSION_DISTANCE , ACT_CAMERA_POSITION , ACT_CAMERA_POSITION_OBJECT_SPACE , ACT_CAMERA_RELATIVE_POSITION , ACT_TEXTURE_VIEWPROJ_MATRIX , ACT_TEXTURE_VIEWPROJ_MATRIX_ARRAY , ACT_TEXTURE_WORLDVIEWPROJ_MATRIX , ACT_TEXTURE_WORLDVIEWPROJ_MATRIX_ARRAY , ACT_SPOTLIGHT_VIEWPROJ_MATRIX , ACT_SPOTLIGHT_VIEWPROJ_MATRIX_ARRAY , ACT_SPOTLIGHT_WORLDVIEWPROJ_MATRIX , ACT_SPOTLIGHT_WORLDVIEWPROJ_MATRIX_ARRAY , ACT_CUSTOM , ACT_TIME , ACT_TIME_0_X , ACT_COSTIME_0_X , ACT_SINTIME_0_X , ACT_TANTIME_0_X , ACT_TIME_0_X_PACKED , ACT_TIME_0_1 , ACT_COSTIME_0_1 , ACT_SINTIME_0_1 , ACT_TANTIME_0_1 , ACT_TIME_0_1_PACKED , ACT_TIME_0_2PI , ACT_COSTIME_0_2PI , ACT_SINTIME_0_2PI , ACT_TANTIME_0_2PI , ACT_TIME_0_2PI_PACKED , ACT_FRAME_TIME , ACT_FPS , ACT_VIEWPORT_WIDTH , ACT_VIEWPORT_HEIGHT , ACT_INVERSE_VIEWPORT_WIDTH , ACT_INVERSE_VIEWPORT_HEIGHT , ACT_VIEWPORT_SIZE , ACT_VIEW_DIRECTION , ACT_VIEW_SIDE_VECTOR , ACT_VIEW_UP_VECTOR , ACT_FOV , ACT_NEAR_CLIP_DISTANCE , ACT_FAR_CLIP_DISTANCE , ACT_PASS_NUMBER , ACT_PASS_ITERATION_NUMBER , ACT_ANIMATION_PARAMETRIC , ACT_TEXEL_OFFSETS , ACT_SCENE_DEPTH_RANGE , ACT_SHADOW_SCENE_DEPTH_RANGE , ACT_SHADOW_SCENE_DEPTH_RANGE_ARRAY , ACT_SHADOW_COLOUR , ACT_TEXTURE_SIZE , ACT_INVERSE_TEXTURE_SIZE , ACT_PACKED_TEXTURE_SIZE , ACT_TEXTURE_MATRIX , ACT_LOD_CAMERA_POSITION , ACT_LOD_CAMERA_POSITION_OBJECT_SPACE , ACT_LIGHT_CUSTOM , ACT_POINT_PARAMS , ACT_MATERIAL_LOD_INDEX }
| Defines the types of automatically updated values that may be bound to GpuProgram parameters, or used to modify parameters on a per-object basis. More...
enum | ElementType { ET_INT = BCT_INT , ET_REAL = BCT_FLOAT }
| Defines the base element type of the auto constant. More...
typedef std::vector< GpuSharedParametersUsage > | GpuSharedParamUsageList

## Public Member Functions
| GpuProgramParameters ()
| GpuProgramParameters (const GpuProgramParameters &oth)
| Copy constructor.
| ~GpuProgramParameters ()
const GpuConstantDefinition * | _findNamedConstantDefinition (const String &name, bool throwExceptionIfMissing=false) const
| Find a constant definition for a named parameter.
size_t | _getConstantPhysicalIndex (size_t logicalIndex, size_t requestedSize, uint16 variability, BaseConstantType type)
| Gets the physical buffer index associated with a logical float constant index.
void | _readRawConstants (size_t physicalIndex, size_t count, float *dest)
| Read a series of floating point values from the underlying float constant buffer at the given physical index.
void | _readRawConstants (size_t physicalIndex, size_t count, int *dest)
| Read a series of integer values from the underlying integer constant buffer at the given physical index.
void | _setLogicalIndexes (const GpuLogicalBufferStructPtr &indexMap)
| Internal method for providing a link to a logical index->physical index map for parameters.
void | _setNamedConstants (const GpuNamedConstantsPtr &constantmap)
| Internal method for providing a link to a name->definition map for parameters.
void | _updateAutoParams (const AutoParamDataSource *source, uint16 variabilityMask)
| Update automatic parameters.
size_t | calculateSize (void) const
void | copyConstantsFrom (const GpuProgramParameters &source)
| Copies the values of all constants (including auto constants) from another GpuProgramParameters object.
void | copyMatchingNamedConstantsFrom (const GpuProgramParameters &source)
| Copies the values of all matching named constants (including auto constants) from another GpuProgramParameters object.
const GpuConstantDefinition & | getConstantDefinition (const String &name) const
| Get a specific GpuConstantDefinition for a named parameter.
GpuConstantDefinitionIterator | getConstantDefinitionIterator (void) const
const GpuNamedConstants & | getConstantDefinitions () const
| Get the full list of GpuConstantDefinition instances.
const ConstantList & | getConstantList () const
| Get a reference to the list of constants.
double * | getDoublePointer (size_t pos)
| Get a pointer to the 'nth' item in the double buffer.
const double * | getDoublePointer (size_t pos) const
| Get a pointer to the 'nth' item in the double buffer.
float * | getFloatPointer (size_t pos)
| Get a pointer to the 'nth' item in the float buffer.
const float * | getFloatPointer (size_t pos) const
| Get a pointer to the 'nth' item in the float buffer.
int * | getIntPointer (size_t pos)
| Get a pointer to the 'nth' item in the int buffer.
const int * | getIntPointer (size_t pos) const
| Get a pointer to the 'nth' item in the int buffer.
const GpuLogicalBufferStructPtr & | getLogicalBufferStruct () const
| Get the current list of mappings from low-level logical param indexes to physical buffer locations in the float buffer.
size_t | getLogicalIndexForPhysicalIndex (size_t physicalIndex)
| Retrieves the logical index relating to a physical index in the buffer, for programs which support that (low-level programs and high-level programs which use logical parameter indexes).
size_t | getPassIterationNumberIndex () const
int * | getRegPointer (size_t pos)
| get a pointer to register storage
const int * | getRegPointer (size_t pos) const
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
bool | getTransposeMatrices (void) const
| Gets whether or not matrices are to be transposed when set.
uint * | getUnsignedIntPointer (size_t pos)
| Get a pointer to the 'nth' item in the uint buffer.
const uint * | getUnsignedIntPointer (size_t pos) const
| Get a pointer to the 'nth' item in the uint buffer.
bool | hasLogicalIndexedParameters () const
| Does this parameter set include logically indexed parameters?
bool | hasNamedParameters () const
| Does this parameter set include named parameters?
bool | hasPassIterationNumber () const
void | incPassIterationNumber (void)
| increments the multipass number entry by 1 if it exists
GpuProgramParameters & | operator= (const GpuProgramParameters &oth)
| Operator = overload.
void | setIgnoreMissingParams (bool state)
| Tells the program whether to ignore missing parameters or not.
void | setTransposeMatrices (bool val)
| Sets whether or not we need to transpose the matrices passed in from the rest of OGRE.
void | setUseLinearColours (bool enable)
| Convert colour parameters from gamma to linear space when setting them.
Set constant by logical index
void | setConstant (size_t index, const Vector4 &vec)
| Sets a 4-element floating-point parameter to the program.
void | setConstant (size_t index, Real val)
| Sets a single floating-point parameter to the program.
void | setConstant (size_t index, const Vector3 &vec)
| Sets a 4-element floating-point parameter to the program via Vector3.
void | setConstant (size_t index, const Vector2 &vec)
| Sets a 4-element floating-point parameter to the program via Vector2.
void | setConstant (size_t index, const Matrix4 &m)
| Sets a Matrix4 parameter to the program.
void | setConstant (size_t index, const Matrix4 *m, size_t numEntries)
| Sets a list of Matrix4 parameters to the program.
void | setConstant (size_t index, const ColourValue &colour)
| Sets a ColourValue parameter to the program.
void | setConstant (size_t index, const float *val, size_t count)
| Sets a multiple value constant floating-point parameter to the program.
void | setConstant (size_t index, const double *val, size_t count)
| Sets a multiple value constant floating-point parameter to the program.
void | setConstant (size_t index, const int *val, size_t count)
| Sets a multiple value constant integer parameter to the program.
void | setConstant (size_t index, const uint *val, size_t count)
| Sets a multiple value constant unsigned integer parameter to the program.
Set constant by physical index
You can use these methods if you have already derived the physical constant buffer location, for a slight speed improvement over using the named / logical index versions.
template<typename T>
void | _writeRawConstants (size_t physicalIndex, const T *val, size_t count)
| Write a series of values into the underlying constant buffer at the given physical index.
void | _writeRawConstants (size_t physicalIndex, const double *val, size_t count)
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void | _writeRegisters (size_t index, const int *val, size_t count)
| write values into register storage
template<int dims, typename T>
void | _writeRawConstant (size_t physicalIndex, const Vector< dims, T > &vec, size_t count=dims)
| Write a Vector parameter to the program directly to the underlying constants buffer.
template<typename T>
void | _writeRawConstant (size_t physicalIndex, T val)
| Write a single parameter to the program.
void | _writeRawConstant (size_t physicalIndex, const Matrix4 &m, size_t elementCount)
| Write a Matrix4 parameter to the program.
void | _writeRawConstant (size_t physicalIndex, const Matrix3 &m, size_t elementCount)
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void | _writeRawConstant (size_t physicalIndex, const TransformBaseReal *m, size_t numEntries)
| Write a list of Matrix4 parameters to the program.
void | _writeRawConstant (size_t physicalIndex, const ColourValue &colour, size_t count=4)
| Write a ColourValue parameter to the program.
Automatically derived constants
const AutoConstantList & | getAutoConstantList () const
| Get a reference to the list of auto constant bindings.
void | setAutoConstant (size_t index, AutoConstantType acType, uint32 extraInfo=0)
| Sets up a constant which will automatically be updated by the system.
void | setAutoConstantReal (size_t index, AutoConstantType acType, float rData)
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void | setAutoConstant (size_t index, AutoConstantType acType, uint16 extraInfo1, uint16 extraInfo2)
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void | _setRawAutoConstant (size_t physicalIndex, AutoConstantType acType, uint32 extraInfo, uint16 variability, uint8 elementSize=4)
| As setAutoConstant, but sets up the auto constant directly against a physical buffer index.
void | _setRawAutoConstantReal (size_t physicalIndex, AutoConstantType acType, float rData, uint16 variability, uint8 elementSize=4)
| As setAutoConstantReal, but sets up the auto constant directly against a physical buffer index.
void | clearAutoConstant (size_t index)
| Unbind an auto constant so that the constant is manually controlled again.
void | setConstantFromTime (size_t index, Real factor)
void | clearAutoConstants (void)
| Clears all the existing automatic constants.
const AutoConstantList & | getAutoConstants () const
| Gets the automatic constant bindings currently in place.
size_t | getAutoConstantCount (void) const
| Gets the number of int constants that have been set.
AutoConstantEntry * | getAutoConstantEntry (const size_t index)
| Gets a specific Auto Constant entry if index is in valid range otherwise returns a NULL.
bool | hasAutoConstants (void) const
| Returns true if this instance has any automatic constants.
const AutoConstantEntry * | findFloatAutoConstantEntry (size_t logicalIndex)
| Finds an auto constant that's affecting a given logical parameter index for floating-point values.
const AutoConstantEntry * | findAutoConstantEntry (const String &paramName) const
| Finds an auto constant that's affecting a given named parameter index.
const AutoConstantEntry * | _findRawAutoConstantEntryFloat (size_t physicalIndex) const
| Finds an auto constant that's affecting a given physical position in the floating-point buffer.
void | setNamedAutoConstant (const String &name, AutoConstantType acType, uint32 extraInfo=0)
| Sets up a constant which will automatically be updated by the system.
void | setNamedAutoConstantReal (const String &name, AutoConstantType acType, Real rData)
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void | setNamedAutoConstant (const String &name, AutoConstantType acType, uint16 extraInfo1, uint16 extraInfo2)
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void | setNamedConstantFromTime (const String &name, Real factor)
void | clearNamedAutoConstant (const String &name)
| Unbind an auto constant so that the constant is manually controlled again.
Set constant by name
void | setNamedConstant (const String &name, float val)
| Sets a single value constant parameter to the program.
void | setNamedConstant (const String &name, int val)
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void | setNamedConstant (const String &name, uint val)
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void | setNamedConstant (const String &name, const Vector4 &val)
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void | setNamedConstant (const String &name, const Vector3 &val)
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void | setNamedConstant (const String &name, const Vector2 &val)
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void | setNamedConstant (const String &name, const Matrix4 &val)
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void | setNamedConstant (const String &name, const ColourValue &colour)
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void | setNamedConstant (const String &name, const Matrix4 *m, size_t numEntries)
| Sets a list of Matrix4 parameters to the program.
void | setNamedConstant (const String &name, const float *val, size_t count, size_t multiple=4)
| Sets a multiple value constant parameter to the program.
void | setNamedConstant (const String &name, const double *val, size_t count, size_t multiple=4)
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void | setNamedConstant (const String &name, const int *val, size_t count, size_t multiple=4)
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
void | setNamedConstant (const String &name, const uint *val, size_t count, size_t multiple=4)
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
Shared Parameters
void | addSharedParameters (GpuSharedParametersPtr sharedParams)
| Use a set of shared parameters in this parameters object.
void | addSharedParameters (const String &sharedParamsName)
| Use a set of shared parameters in this parameters object.
bool | isUsingSharedParameters (const String &sharedParamsName) const
| Returns whether this parameter set is using the named shared parameter set.
void | removeSharedParameters (const String &sharedParamsName)
| Stop using the named shared parameter set.
void | removeAllSharedParameters ()
| Stop using all shared parameter sets.
const GpuSharedParamUsageList & | getSharedParameters () const
| Get the list of shared parameter sets.
void | _copySharedParams ()
| Update the parameters by copying the data from the shared parameters.
void | _updateSharedParams ()
| Update the HardwareBuffer based backing of referenced shared parameters.

## Static Public Member Functions
static const AutoConstantDefinition * | getAutoConstantDefinition (AutoConstantType type)
| gets the auto constant definition by auto constant type.
static const AutoConstantDefinition * | getAutoConstantDefinition (const String &name)
| gets the auto constant definition associated with name if found else returns NULL
static size_t | getNumAutoConstantDefinitions (void)
| Returns the number of auto constant definitions.

## Detailed Description

Collects together the program parameters used for a GpuProgram.

Gpu program state includes constant parameters used by the program, and bindings to render system state which is propagated into the constants by the engine automatically if requested.

  GpuProgramParameters objects should be created through the GpuProgram and may be shared between multiple Pass instances. For this reason they are managed using a shared pointer, which will ensure they are automatically deleted when no Pass is using them anymore.

  High-level programs use named parameters (uniforms), low-level programs use indexed constants. This class supports both, but you can tell whether named constants are supported by calling hasNamedParameters(). There are references in the documentation below to 'logical' and 'physical' indexes; logical indexes are the indexes used by low-level programs and represent indexes into an array of float4's, some of which may be settable, some of which may be predefined constants in the program. We only store those constants which have actually been set, therefore our buffer could have gaps if we used the logical indexes in our own buffers. So instead we map these logical indexes to physical indexes in our buffer. When using high-level programs, logical indexes don't necessarily exist, although they might if the high-level program has a direct, exposed mapping from parameter names to logical indexes. In addition, high-level languages may or may not pack arrays of elements that are smaller than float4 (e.g. float2/vec2) contiguously. This kind of information is held in the ConstantDefinition structure which is only populated for high-level programs. You don't have to worry about any of this unless you intend to read parameters back from this structure rather than just setting them.

## Member Typedef Documentation

## ◆ AutoConstantList

typedef std::vector<AutoConstantEntry> Ogre::GpuProgramParameters::AutoConstantList

## ◆ GpuSharedParamUsageList

typedef std::vector<GpuSharedParametersUsage> Ogre::GpuProgramParameters::GpuSharedParamUsageList

## Member Enumeration Documentation

## ◆ AutoConstantType

enum Ogre::GpuProgramParameters::AutoConstantType

Defines the types of automatically updated values that may be bound to GpuProgram parameters, or used to modify parameters on a per-object basis.

For use in Parameter specification, drop the ACT_ prefix. E.g. ACT_WORLD_MATRIX becomes world_matrix.

Enumerator
ACT_WORLD_MATRIX | The current world matrix.
ACT_INVERSE_WORLD_MATRIX | The current world matrix, inverted.
ACT_TRANSPOSE_WORLD_MATRIX | Provides transpose of world matrix.
ACT_INVERSE_TRANSPOSE_WORLD_MATRIX | The current world matrix, inverted & transposed.
ACT_BONE_MATRIX_ARRAY_3x4 | An array of bone matrices, each represented as only a 3x4 matrix (3 rows of 4columns) usually for doing hardware skinning. You should make enough entries available in your vertex program for the number of bones in use, i.e. an array of numBones*3 float4’s.
ACT_WORLD_MATRIX_ARRAY_3x4 |
ACT_BONE_MATRIX_ARRAY | The current array of bone matrices, used for blending.
ACT_WORLD_MATRIX_ARRAY |
ACT_BONE_DUALQUATERNION_ARRAY_2x4 | The current array of bone matrices transformed to an array of dual quaternions, represented as a 2x4 matrix.
ACT_WORLD_DUALQUATERNION_ARRAY_2x4 |
ACT_BONE_SCALE_SHEAR_MATRIX_ARRAY_3x4 | The scale and shear components of the current array of bone matrices.
ACT_WORLD_SCALE_SHEAR_MATRIX_ARRAY_3x4 |
ACT_VIEW_MATRIX | The current view matrix.
ACT_INVERSE_VIEW_MATRIX | The current view matrix, inverted.
ACT_TRANSPOSE_VIEW_MATRIX | Provides transpose of view matrix.
ACT_INVERSE_TRANSPOSE_VIEW_MATRIX | Provides inverse transpose of view matrix.
ACT_PROJECTION_MATRIX | The current projection matrix.
ACT_INVERSE_PROJECTION_MATRIX | Provides inverse of projection matrix.
ACT_TRANSPOSE_PROJECTION_MATRIX | Provides transpose of projection matrix.
ACT_INVERSE_TRANSPOSE_PROJECTION_MATRIX | Provides inverse transpose of projection matrix.
ACT_VIEWPROJ_MATRIX | The current view & projection matrices concatenated.
ACT_INVERSE_VIEWPROJ_MATRIX | Provides inverse of concatenated view and projection matrices.
ACT_TRANSPOSE_VIEWPROJ_MATRIX | Provides transpose of concatenated view and projection matrices.
ACT_INVERSE_TRANSPOSE_VIEWPROJ_MATRIX | Provides inverse transpose of concatenated view and projection matrices.
ACT_WORLDVIEW_MATRIX | The current world & view matrices concatenated.
ACT_INVERSE_WORLDVIEW_MATRIX | The current world & view matrices concatenated, then inverted.
ACT_TRANSPOSE_WORLDVIEW_MATRIX | Provides transpose of concatenated world and view matrices.
ACT_INVERSE_TRANSPOSE_WORLDVIEW_MATRIX | The current world & view matrices concatenated, then inverted & transposed.
ACT_NORMAL_MATRIX | Provides inverse transpose of the upper 3x3 of the worldview matrix. Equivalent to `gl_NormalMatrix`.
ACT_WORLDVIEWPROJ_MATRIX | The current world, view & projection matrices concatenated.
ACT_INVERSE_WORLDVIEWPROJ_MATRIX | Provides inverse of concatenated world, view and projection matrices.
ACT_TRANSPOSE_WORLDVIEWPROJ_MATRIX | Provides transpose of concatenated world, view and projection matrices.
ACT_INVERSE_TRANSPOSE_WORLDVIEWPROJ_MATRIX | Provides inverse transpose of concatenated world, view and projection matrices.
ACT_WORLDVIEWPROJ_MATRIX_ARRAY | For layered rendering: The current world, view & projection matrices concatenated.
ACT_RENDER_TARGET_FLIPPING | -1 if requires texture flipping, +1 otherwise. It's useful when you bypassed projection matrix transform, still able use this value to adjust transformed y position.
ACT_VERTEX_WINDING | -1 if the winding has been inverted, +1 otherwise. e.g. for reflections
ACT_FOG_COLOUR | Fog colour.
ACT_FOG_PARAMS | Fog params: (density, linear start, linear end, 1/(end-start)).
ACT_SURFACE_AMBIENT_COLOUR | Surface ambient colour, as set in Pass::setAmbient.
ACT_SURFACE_DIFFUSE_COLOUR | Surface diffuse colour, as set in Pass::setDiffuse.
ACT_SURFACE_SPECULAR_COLOUR | Surface specular colour, as set in Pass::setSpecular.
ACT_SURFACE_EMISSIVE_COLOUR | Surface emissive colour, as set in Pass::setSelfIllumination.
ACT_SURFACE_SHININESS | Surface shininess, as set in Pass::setShininess.
ACT_SURFACE_ALPHA_REJECTION_VALUE | Surface alpha rejection value, not as set in Pass::setAlphaRejectValue, but a floating number between 0.0f and 1.0f instead (255.0f / Pass::getAlphaRejectValue()).
ACT_LIGHT_COUNT | The number of active light sources.
ACT_AMBIENT_LIGHT_COLOUR | The ambient light colour set in the scene.
ACT_LIGHT_DIFFUSE_COLOUR | Light diffuse colour (index determined by setAutoConstant call). this requires an index in the ’extra_params’ field, and relates to the ’nth’ closest light which could affect this object (i.e. 0 refers to the closest light - note that directional lights are always first in the list and always present). NB if there are no lights this close, then the parameter will be set to black.
ACT_LIGHT_SPECULAR_COLOUR | Light specular colour (index determined by setAutoConstant call).
ACT_LIGHT_ATTENUATION | Light attenuation parameters. Packed as (range, constant, linear, quadric). For area lights this contains the height half-vector (x, y, z, 0) of the light in viewspace.
ACT_SPOTLIGHT_PARAMS | Spotlight parameters. Packed as (innerFactor, outerFactor, falloff, spotType) innerFactor and outerFactor are cos(angle/2) The spotType parameter is 0.0f for non-spotlights, 1.0f for spotlights and 2.0f for area spotlights. For area lights this contains the width half-vector (x, y, z, 2) of the light in viewspace. Also for non-spotlights the inner and outer factors are 1 and 0 respectively
ACT_LIGHT_POSITION | A light position in world space (index determined by setAutoConstant call). This requires an index in the ’extra_params’ field, and relates to the ’nth’ closest light which could affect this object (i.e. 0 refers to the closest light). NB if there are no lights this close, then the parameter will be set to all zeroes. Note that this property will work with all kinds of lights, even directional lights, since the parameter is set as a 4D vector. Point lights will be (pos.x, pos.y, pos.z, 1.0f) whilst directional lights will be (-dir.x, -dir.y, -dir.z, 0.0f). Operations like dot products will work consistently on both.
ACT_LIGHT_POSITION_OBJECT_SPACE | A light position in object space (index determined by setAutoConstant call).
ACT_LIGHT_POSITION_VIEW_SPACE | A light position in view space (index determined by setAutoConstant call).
ACT_LIGHT_DIRECTION | A light direction in world space (index determined by setAutoConstant call). Deprecated this property only works on directional lights, and we recommend that you use light_position instead since that returns a generic 4D vector.
ACT_LIGHT_DIRECTION_OBJECT_SPACE | A light direction in object space (index determined by setAutoConstant call).
ACT_LIGHT_DIRECTION_VIEW_SPACE | A light direction in view space (index determined by setAutoConstant call).
ACT_LIGHT_DISTANCE_OBJECT_SPACE | The distance of the light from the center of the object a useful approximation as an alternative to per-vertex distance calculations.
ACT_LIGHT_POWER_SCALE | Light power level, a single scalar as set in Light::setPowerScale (index determined by setAutoConstant call).
ACT_LIGHT_DIFFUSE_COLOUR_POWER_SCALED | Light diffuse colour pre-scaled by Light::setPowerScale (index determined by setAutoConstant call).
ACT_LIGHT_SPECULAR_COLOUR_POWER_SCALED | Light specular colour pre-scaled by Light::setPowerScale (index determined by setAutoConstant call).
ACT_LIGHT_DIFFUSE_COLOUR_ARRAY | Array of light diffuse colours (count set by extra param).
ACT_LIGHT_SPECULAR_COLOUR_ARRAY | Array of light specular colours (count set by extra param).
ACT_LIGHT_DIFFUSE_COLOUR_POWER_SCALED_ARRAY | Array of light diffuse colours scaled by light power (count set by extra param).
ACT_LIGHT_SPECULAR_COLOUR_POWER_SCALED_ARRAY | Array of light specular colours scaled by light power (count set by extra param).
ACT_LIGHT_ATTENUATION_ARRAY | Array of light attenuation parameters. Packed as (range, constant, linear, quadric). For area lights this contains the height half-vector (x, y, z, 0) of the light in viewspace. (count set by extra param)
ACT_LIGHT_POSITION_ARRAY | Array of light positions in world space (count set by extra param).
ACT_LIGHT_POSITION_OBJECT_SPACE_ARRAY | Array of light positions in object space (count set by extra param).
ACT_LIGHT_POSITION_VIEW_SPACE_ARRAY | Array of light positions in view space (count set by extra param).
ACT_LIGHT_DIRECTION_ARRAY | Array of light directions in world space (count set by extra param).
ACT_LIGHT_DIRECTION_OBJECT_SPACE_ARRAY | Array of light directions in object space (count set by extra param).
ACT_LIGHT_DIRECTION_VIEW_SPACE_ARRAY | Array of light directions in view space (count set by extra param).
ACT_LIGHT_DISTANCE_OBJECT_SPACE_ARRAY | Array of distances of the lights from the center of the object a useful approximation as an alternative to per-vertex distance calculations. (count set by extra param)
ACT_LIGHT_POWER_SCALE_ARRAY | Array of light power levels, a single scalar as set in Light::setPowerScale (count set by extra param).
ACT_SPOTLIGHT_PARAMS_ARRAY | Spotlight parameters array. Packed as (innerFactor, outerFactor, falloff, spotType) innerFactor and outerFactor are cos(angle/2) The spotType parameter is 0.0f for non-spotlights, 1.0f for spotlights and 2.0f for area spotlights. For area lights this contains the width half-vector (x, y, z, 2) of the light in viewspace. Also for non-spotlights the inner and outer factors are 1 and 0 respectively (count set by extra param)
ACT_DERIVED_AMBIENT_LIGHT_COLOUR | The derived ambient light colour, with 'r', 'g', 'b' components filled with product of surface ambient colour and ambient light colour, respectively, and 'a' component filled with surface diffuse alpha component.
ACT_DERIVED_SCENE_COLOUR | The derived scene colour, with 'r', 'g' and 'b' components filled with sum of derived ambient light colour and surface emissive colour, respectively, and 'a' component filled with surface diffuse alpha component.
ACT_DERIVED_LIGHT_DIFFUSE_COLOUR | The derived light diffuse colour (index determined by setAutoConstant call), with 'r', 'g' and 'b' components filled with product of surface diffuse colour, light power scale and light diffuse colour, respectively, and 'a' component filled with surface diffuse alpha component.
ACT_DERIVED_LIGHT_SPECULAR_COLOUR | The derived light specular colour (index determined by setAutoConstant call), with 'r', 'g' and 'b' components filled with product of surface specular colour and light specular colour, respectively, and 'a' component filled with surface specular alpha component.
ACT_DERIVED_LIGHT_DIFFUSE_COLOUR_ARRAY | Array of derived light diffuse colours (count set by extra param).
ACT_DERIVED_LIGHT_SPECULAR_COLOUR_ARRAY | Array of derived light specular colours (count set by extra param).
ACT_LIGHT_NUMBER | The absolute light number of a local light index. Each pass may have a number of lights passed to it, and each of these lights will have an index in the overall light list, which will differ from the local light index due to factors like setStartLight and setIteratePerLight. This binding provides the global light index for a local index.
ACT_LIGHT_CASTS_SHADOWS | Returns (int) 1 if the given light casts shadows, 0 otherwise (index set in extra param).
ACT_LIGHT_CASTS_SHADOWS_ARRAY | Returns (int) 1 if the given light casts shadows, 0 otherwise (index set in extra param).
ACT_SHADOW_EXTRUSION_DISTANCE | The distance a shadow volume should be extruded when using finite extrusion programs.
ACT_CAMERA_POSITION | The current camera's position in world space.
ACT_CAMERA_POSITION_OBJECT_SPACE | The current camera's position in object space.
ACT_CAMERA_RELATIVE_POSITION | The current camera's position in world space even when camera relative rendering is enabled.
ACT_TEXTURE_VIEWPROJ_MATRIX | The view/projection matrix of the assigned texture projection frustum. Applicable to vertex programs which have been specified as the ’shadow receiver’ vertex program alternative, or where a texture unit is marked as content_type shadow; this provides details of the view/projection matrix for the current shadow projector. The optional ’extra_params’ entry specifies which light the projector refers to (for the case of content_type shadow where more than one shadow texture may be present in a single pass), where 0 is the default and refers to the first light referenced in this pass.
ACT_TEXTURE_VIEWPROJ_MATRIX_ARRAY | Array of view/projection matrices of the first n texture projection frustums.
ACT_TEXTURE_WORLDVIEWPROJ_MATRIX | The view/projection matrix of the assigned texture projection frustum, combined with the current world matrix.
ACT_TEXTURE_WORLDVIEWPROJ_MATRIX_ARRAY | Array of world/view/projection matrices of the first n texture projection frustums.
ACT_SPOTLIGHT_VIEWPROJ_MATRIX | The view/projection matrix of a given spotlight.
ACT_SPOTLIGHT_VIEWPROJ_MATRIX_ARRAY | Array of view/projection matrix of a given spotlight.
ACT_SPOTLIGHT_WORLDVIEWPROJ_MATRIX | The view/projection matrix of a given spotlight projection frustum, combined with the current world matrix.
ACT_SPOTLIGHT_WORLDVIEWPROJ_MATRIX_ARRAY | An array of the view/projection matrix of a given spotlight projection frustum, combined with the current world matrix.
ACT_CUSTOM | A custom parameter which will come from the renderable, using 'data' as the identifier. This allows you to map a custom parameter on an individual Renderable (see Renderable::setCustomParameter) to a parameter on a GPU program. It requires that you complete the ’extra_params’ field with the index that was used in the Renderable::setCustomParameter call, and this will ensure that whenever this Renderable is used, it will have it’s custom parameter mapped in. It’s very important that this parameter has been defined on all Renderables that are assigned the material that contains this automatic mapping, otherwise the process will fail.
ACT_TIME | provides current elapsed time
ACT_TIME_0_X | Single float value, which repeats itself based on given as parameter "cycle time".
ACT_COSTIME_0_X | Cosine of "Time0_X".
ACT_SINTIME_0_X | Sine of "Time0_X".
ACT_TANTIME_0_X | Tangent of "Time0_X".
ACT_TIME_0_X_PACKED | Vector of "Time0_X", "SinTime0_X", "CosTime0_X", "TanTime0_X".
ACT_TIME_0_1 | Single float value, which represents scaled time value [0..1], which repeats itself based on given as parameter "cycle time".
ACT_COSTIME_0_1 | Cosine of "Time0_1".
ACT_SINTIME_0_1 | Sine of "Time0_1".
ACT_TANTIME_0_1 | Tangent of "Time0_1".
ACT_TIME_0_1_PACKED | Vector of "Time0_1", "SinTime0_1", "CosTime0_1", "TanTime0_1".
ACT_TIME_0_2PI | Single float value, which represents scaled time value [0..2*Pi], which repeats itself based on given as parameter "cycle time".
ACT_COSTIME_0_2PI | Cosine of "Time0_2PI".
ACT_SINTIME_0_2PI | Sine of "Time0_2PI".
ACT_TANTIME_0_2PI | Tangent of "Time0_2PI".
ACT_TIME_0_2PI_PACKED | Vector of "Time0_2PI", "SinTime0_2PI", "CosTime0_2PI", "TanTime0_2PI".
ACT_FRAME_TIME | provides the scaled frame time, returned as a floating point value.
ACT_FPS | provides the calculated frames per second, returned as a floating point value.
ACT_VIEWPORT_WIDTH | Current viewport width (in pixels) as floating point value.
ACT_VIEWPORT_HEIGHT | Current viewport height (in pixels) as floating point value.
ACT_INVERSE_VIEWPORT_WIDTH | This variable represents 1/ViewportWidth.
ACT_INVERSE_VIEWPORT_HEIGHT | This variable represents 1/ViewportHeight.
ACT_VIEWPORT_SIZE | Viewport dimensions. Packed as (ViewportWidth, ViewportHeight, 1/ViewportWidth, 1/ViewportHeight)
ACT_VIEW_DIRECTION | This variable provides the view direction vector (world space).
ACT_VIEW_SIDE_VECTOR | This variable provides the view side vector (world space).
ACT_VIEW_UP_VECTOR | This variable provides the view up vector (world space).
ACT_FOV | This variable provides the field of view as a floating point value.
ACT_NEAR_CLIP_DISTANCE | This variable provides the near clip distance as a floating point value.
ACT_FAR_CLIP_DISTANCE | This variable provides the far clip distance as a floating point value.
ACT_PASS_NUMBER | provides the pass index number within the technique of the active material.
ACT_PASS_ITERATION_NUMBER | provides the current iteration number of the pass. The iteration number is the number of times the current render operation has been drawn for the active pass.
ACT_ANIMATION_PARAMETRIC | Provides a parametric animation value [0..1], only available where the renderable specifically implements it. For morph animation, sets the parametric value (0..1) representing the distance between the first position keyframe (bound to positions) and the second position keyframe (bound to the first free texture coordinate) so that the vertex program can interpolate between them. For pose animation, indicates a group of up to 4 parametric weight values applying to a sequence of up to 4 poses (each one bound to x, y, z and w of the constant), one for each pose. The original positions are held in the usual position buffer, and the offsets to take those positions to the pose where weight == 1.0 are in the first ’n’ free texture coordinates; ’n’ being determined by the value passed to includes_pose_animation. If more than 4 simultaneous poses are required, then you’ll need more than 1 shader constant to hold the parametric values, in which case you should use this binding more than once, referencing a different constant entry; the second one will contain the parametrics for poses 5-8, the third for poses 9-12, and so on.
ACT_TEXEL_OFFSETS | Provides the texel offsets required by this rendersystem to map texels to pixels. Packed as (absoluteHorizontalOffset, absoluteVerticalOffset, horizontalOffset / viewportWidth, verticalOffset / viewportHeight)
ACT_SCENE_DEPTH_RANGE | Provides information about the depth range of the scene as viewed from the current camera. Passed as (minDepth, maxDepth, depthRange, 1 / depthRange)
ACT_SHADOW_SCENE_DEPTH_RANGE | Provides information about the depth range of the scene as viewed from a given shadow camera. Requires an index parameter which maps to a light index relative to the current light list. Passed as (minDepth, maxDepth, depthRange, 1 / depthRange)
ACT_SHADOW_SCENE_DEPTH_RANGE_ARRAY | Provides an array of information about the depth range of the scene as viewed from a given shadow camera. Requires an index parameter which maps to a light index relative to the current light list. Passed as (minDepth, maxDepth, depthRange, 1 / depthRange)
ACT_SHADOW_COLOUR | Provides the fixed shadow colour as configured via SceneManager::setShadowColour; useful for integrated modulative shadows.
ACT_TEXTURE_SIZE | Provides texture size of the texture unit (index determined by setAutoConstant call). Packed as (width, height, depth, numMipMaps)
ACT_INVERSE_TEXTURE_SIZE | Provides inverse texture size of the texture unit (index determined by setAutoConstant call). Packed as (1 / width, 1 / height, 1 / depth, 1 / numMipMaps)
ACT_PACKED_TEXTURE_SIZE | Provides packed texture size of the texture unit (index determined by setAutoConstant call). Packed as (width, height, 1 / width, 1 / height)
ACT_TEXTURE_MATRIX | Provides the current transform matrix of the texture unit (index determined by setAutoConstant call), as seen by the fixed-function pipeline. This requires an index in the ’extra_params’ field, and relates to the ’nth’ texture unit of the pass in question. NB if the given index exceeds the number of texture units available for this pass, then the parameter will be set to Matrix4::IDENTITY.
ACT_LOD_CAMERA_POSITION | Provides the position of the LOD camera in world space, allowing you to perform separate LOD calculations in shaders independent of the rendering camera. If there is no separate LOD camera then this is the real camera position. See Camera::setLodCamera.
ACT_LOD_CAMERA_POSITION_OBJECT_SPACE | Provides the position of the LOD camera in object space, allowing you to perform separate LOD calculations in shaders independent of the rendering camera. If there is no separate LOD camera then this is the real camera position. See Camera::setLodCamera.
ACT_LIGHT_CUSTOM | Binds custom per-light constants to the shaders.
ACT_POINT_PARAMS | Point attenuation params. Packed as (size, constant, linear, quadratic)
ACT_MATERIAL_LOD_INDEX | the LOD index as selected by the active LodStrategy

## ◆ ACDataType

enum Ogre::GpuProgramParameters::ACDataType

Defines the type of the extra data item used by the auto constant.

Enumerator
ACDT_NONE | no data is required
ACDT_INT | the auto constant requires data of type int
ACDT_REAL | the auto constant requires data of type float

## ◆ ElementType

enum Ogre::GpuProgramParameters::ElementType

Defines the base element type of the auto constant.

Enumerator
ET_INT |
ET_REAL |

## Constructor & Destructor Documentation

## ◆ GpuProgramParameters() [1/2]

Ogre::GpuProgramParameters::GpuProgramParameters | ( |  | ) |

Referenced by GpuProgramParameters(), copyConstantsFrom(), copyMatchingNamedConstantsFrom(), and operator=().

## ◆ ~GpuProgramParameters()

Ogre::GpuProgramParameters::~GpuProgramParameters | ( |  | ) |

## ◆ GpuProgramParameters() [2/2]

Ogre::GpuProgramParameters::GpuProgramParameters | ( | const GpuProgramParameters & | oth | ) |

Copy constructor.

References GpuProgramParameters().

## Member Function Documentation

## ◆ operator=()

GpuProgramParameters & Ogre::GpuProgramParameters::operator= | ( | const GpuProgramParameters & | oth | ) |

Operator = overload.

References GpuProgramParameters().

## ◆ _setNamedConstants()

void Ogre::GpuProgramParameters::_setNamedConstants | ( | const GpuNamedConstantsPtr & | constantmap | ) |

Internal method for providing a link to a name->definition map for parameters.

## ◆ _setLogicalIndexes()

void Ogre::GpuProgramParameters::_setLogicalIndexes | ( | const GpuLogicalBufferStructPtr & | indexMap | ) |

Internal method for providing a link to a logical index->physical index map for parameters.

## ◆ hasNamedParameters()

bool Ogre::GpuProgramParameters::hasNamedParameters | ( |  | ) | const
| inline

Does this parameter set include named parameters?

## ◆ hasLogicalIndexedParameters()

bool Ogre::GpuProgramParameters::hasLogicalIndexedParameters | ( |  | ) | const
| inline

Does this parameter set include logically indexed parameters?

Note
  Not mutually exclusive with hasNamedParameters since some high-level programs still use logical indexes to set the parameters on the rendersystem.

## ◆ setUseLinearColours()

void Ogre::GpuProgramParameters::setUseLinearColours | ( | bool | enable | ) |
| inline

Convert colour parameters from gamma to linear space when setting them.

This is useful when you have your materials defined in gamma space but your rendering is in linear space.

## ◆ setConstant() [1/11]

void Ogre::GpuProgramParameters::setConstant | ( | size_t | index,
|  | const Vector4 & | vec )

Sets a 4-element floating-point parameter to the program.

Parameters

  index | The logical constant index at which to place the parameter (each constant is a 4D float)
  vec | The value to set

## ◆ setConstant() [2/11]

void Ogre::GpuProgramParameters::setConstant | ( | size_t | index,
|  | Real | val )

Sets a single floating-point parameter to the program.

Note
  This is actually equivalent to calling setConstant(index Vector4(val, 0, 0, 0)) since all constants are 4D.

Parameters

  index | The logical constant index at which to place the parameter (each constant is a 4D float)
  val | The value to set

## ◆ setConstant() [3/11]

void Ogre::GpuProgramParameters::setConstant | ( | size_t | index,
|  | const Vector3 & | vec )

Sets a 4-element floating-point parameter to the program via Vector3.

Parameters

  index | The logical constant index at which to place the parameter (each constant is a 4D float). Note that since you're passing a Vector3, the last element of the 4-element value will be set to 1 (a homogeneous vector)
  vec | The value to set

## ◆ setConstant() [4/11]

void Ogre::GpuProgramParameters::setConstant | ( | size_t | index,
|  | const Vector2 & | vec )

Sets a 4-element floating-point parameter to the program via Vector2.

Parameters

  index | The logical constant index at which to place the parameter (each constant is a 4D float). Note that since you're passing a Vector2, the last 2 elements of the 4-element value will be set to 1 (a homogeneous vector)
  vec | The value to set

## ◆ setConstant() [5/11]

void Ogre::GpuProgramParameters::setConstant | ( | size_t | index,
|  | const Matrix4 & | m )

Sets a Matrix4 parameter to the program.

Parameters

  index | The logical constant index at which to place the parameter (each constant is a 4D float). NB since a Matrix4 is 16 floats long, this parameter will take up 4 indexes.
  m | The value to set

## ◆ setConstant() [6/11]

void Ogre::GpuProgramParameters::setConstant | ( | size_t | index,
|  | const Matrix4 * | m,
|  | size_t | numEntries )

Sets a list of Matrix4 parameters to the program.

Parameters

  index | The logical constant index at which to start placing the parameter (each constant is a 4D float). NB since a Matrix4 is 16 floats long, so each entry will take up 4 indexes.
  m | Pointer to an array of matrices to set
  numEntries | Number of Matrix4 entries

## ◆ setConstant() [7/11]

void Ogre::GpuProgramParameters::setConstant | ( | size_t | index,
|  | const ColourValue & | colour )

Sets a ColourValue parameter to the program.

Parameters

  index | The logical constant index at which to place the parameter (each constant is a 4D float)
  colour | The value to set

## ◆ setConstant() [8/11]

void Ogre::GpuProgramParameters::setConstant | ( | size_t | index,
|  | const float * | val,
|  | size_t | count )

Sets a multiple value constant floating-point parameter to the program.

Parameters

  index | The logical constant index at which to start placing parameters (each constant is a 4D float)
  val | Pointer to the values to write, must contain 4*count floats
  count | The number of groups of 4 floats to write

## ◆ setConstant() [9/11]

void Ogre::GpuProgramParameters::setConstant | ( | size_t | index,
|  | const double * | val,
|  | size_t | count )

Sets a multiple value constant floating-point parameter to the program.

Parameters

  index | The logical constant index at which to start placing parameters (each constant is a 4D float)
  val | Pointer to the values to write, must contain 4*count floats
  count | The number of groups of 4 floats to write

## ◆ setConstant() [10/11]

void Ogre::GpuProgramParameters::setConstant | ( | size_t | index,
|  | const int * | val,
|  | size_t | count )

Sets a multiple value constant integer parameter to the program.

Different types of GPU programs support different types of constant parameters. For example, it's relatively common to find that vertex programs only support floating point constants, and that fragment programs only support integer (fixed point) parameters. This can vary depending on the program version supported by the graphics card being used. You should consult the documentation for the type of low level program you are using, or alternatively use the methods provided on RenderSystemCapabilities to determine the options.

Parameters

  index | The logical constant index at which to place the parameter (each constant is a 4D integer)
  val | Pointer to the values to write, must contain 4*count ints
  count | The number of groups of 4 ints to write

## ◆ setConstant() [11/11]

void Ogre::GpuProgramParameters::setConstant | ( | size_t | index,
|  | const uint * | val,
|  | size_t | count )

Sets a multiple value constant unsigned integer parameter to the program.

Different types of GPU programs support different types of constant parameters. For example, it's relatively common to find that vertex programs only support floating point constants, and that fragment programs only support integer (fixed point) parameters. This can vary depending on the program version supported by the graphics card being used. You should consult the documentation for the type of low level program you are using, or alternatively use the methods provided on RenderSystemCapabilities to determine the options.

Parameters

  index | The logical constant index at which to place the parameter (each constant is a 4D integer)
  val | Pointer to the values to write, must contain 4*count ints
  count | The number of groups of 4 ints to write

## ◆ _writeRawConstants() [1/2]

template<typename T>

void Ogre::GpuProgramParameters::_writeRawConstants | ( | size_t | physicalIndex,
|  | const T * | val,
|  | size_t | count )
| inline

Write a series of values into the underlying constant buffer at the given physical index.

Parameters

  physicalIndex | The buffer position to start writing
  val | Pointer to a list of values to write
  count | The number of floats to write

Referenced by _writeRawConstant(), and _writeRawConstant().

## ◆ _writeRawConstants() [2/2]

void Ogre::GpuProgramParameters::_writeRawConstants | ( | size_t | physicalIndex,
|  | const double * | val,
|  | size_t | count )

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

## ◆ _writeRegisters()

void Ogre::GpuProgramParameters::_writeRegisters | ( | size_t | index,
|  | const int * | val,
|  | size_t | count )

write values into register storage

## ◆ _writeRawConstant() [1/6]

template<int dims, typename T>

void Ogre::GpuProgramParameters::_writeRawConstant | ( | size_t | physicalIndex,
|  | const Vector< dims, T > & | vec,
|  | size_t | count = dims )
| inline

Write a Vector parameter to the program directly to the underlying constants buffer.

Parameters

  physicalIndex | The physical buffer index at which to place the parameter
  vec | The value to set
  count | The number of floats to write; if for example the uniform constant 'slot' is smaller than a Vector4

References _writeRawConstants(), and Ogre::VectorBase< dims, T >::ptr().

## ◆ _writeRawConstant() [2/6]

template<typename T>

void Ogre::GpuProgramParameters::_writeRawConstant | ( | size_t | physicalIndex,
|  | T | val )
| inline

Write a single parameter to the program.

Parameters

  physicalIndex | The physical buffer index at which to place the parameter
  val | The value to set

References _writeRawConstants().

## ◆ _writeRawConstant() [3/6]

void Ogre::GpuProgramParameters::_writeRawConstant | ( | size_t | physicalIndex,
|  | const Matrix4 & | m,
|  | size_t | elementCount )

Write a Matrix4 parameter to the program.

Parameters

  physicalIndex | The physical buffer index at which to place the parameter
  m | The value to set
  elementCount | actual element count used with shader

## ◆ _writeRawConstant() [4/6]

void Ogre::GpuProgramParameters::_writeRawConstant | ( | size_t | physicalIndex,
|  | const Matrix3 & | m,
|  | size_t | elementCount )

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

## ◆ _writeRawConstant() [5/6]

void Ogre::GpuProgramParameters::_writeRawConstant | ( | size_t | physicalIndex,
|  | const TransformBaseReal * | m,
|  | size_t | numEntries )

Write a list of Matrix4 parameters to the program.

Parameters

  physicalIndex | The physical buffer index at which to place the parameter
  m | The value to set
  numEntries | Number of Matrix4 entries

## ◆ _writeRawConstant() [6/6]

void Ogre::GpuProgramParameters::_writeRawConstant | ( | size_t | physicalIndex,
|  | const ColourValue & | colour,
|  | size_t | count = 4 )

Write a ColourValue parameter to the program.

Parameters

  physicalIndex | The physical buffer index at which to place the parameter
  colour | The value to set
  count | The number of floats to write; if for example the uniform constant 'slot' is smaller than a Vector4

## ◆ _readRawConstants() [1/2]

void Ogre::GpuProgramParameters::_readRawConstants | ( | size_t | physicalIndex,
|  | size_t | count,
|  | float * | dest )

Read a series of floating point values from the underlying float constant buffer at the given physical index.

Parameters

  physicalIndex | The buffer position to start reading
  count | The number of floats to read
  dest | Pointer to a buffer to receive the values

## ◆ _readRawConstants() [2/2]

void Ogre::GpuProgramParameters::_readRawConstants | ( | size_t | physicalIndex,
|  | size_t | count,
|  | int * | dest )

Read a series of integer values from the underlying integer constant buffer at the given physical index.

Parameters

  physicalIndex | The buffer position to start reading
  count | The number of ints to read
  dest | Pointer to a buffer to receive the values

## ◆ getConstantDefinitionIterator()

GpuConstantDefinitionIterator Ogre::GpuProgramParameters::getConstantDefinitionIterator | ( | void |  | ) | const

Deprecated
  use getConstantDefinitions()

## ◆ getConstantDefinition()

const GpuConstantDefinition & Ogre::GpuProgramParameters::getConstantDefinition | ( | const String & | name | ) | const

Get a specific GpuConstantDefinition for a named parameter.

Note
  Only available if this parameters object has named parameters.

## ◆ getConstantDefinitions()

const GpuNamedConstants & Ogre::GpuProgramParameters::getConstantDefinitions | ( |  | ) | const

Get the full list of GpuConstantDefinition instances.

Note
  Only available if this parameters object has named parameters.

## ◆ getLogicalBufferStruct()

const GpuLogicalBufferStructPtr & Ogre::GpuProgramParameters::getLogicalBufferStruct | ( |  | ) | const
| inline

Get the current list of mappings from low-level logical param indexes to physical buffer locations in the float buffer.

Note
  Only applicable to low-level programs.

## ◆ getLogicalIndexForPhysicalIndex()

size_t Ogre::GpuProgramParameters::getLogicalIndexForPhysicalIndex | ( | size_t | physicalIndex | ) |

Retrieves the logical index relating to a physical index in the buffer, for programs which support that (low-level programs and high-level programs which use logical parameter indexes).

Returns
  std::numeric_limits<size_t>::max() if not found

## ◆ getConstantList()

const ConstantList & Ogre::GpuProgramParameters::getConstantList | ( |  | ) | const
| inline

Get a reference to the list of constants.

## ◆ getFloatPointer() [1/2]

float * Ogre::GpuProgramParameters::getFloatPointer | ( | size_t | pos | ) |
| inline

Get a pointer to the 'nth' item in the float buffer.

## ◆ getFloatPointer() [2/2]

const float * Ogre::GpuProgramParameters::getFloatPointer | ( | size_t | pos | ) | const
| inline

Get a pointer to the 'nth' item in the float buffer.

## ◆ getDoublePointer() [1/2]

double * Ogre::GpuProgramParameters::getDoublePointer | ( | size_t | pos | ) |
| inline

Get a pointer to the 'nth' item in the double buffer.

## ◆ getDoublePointer() [2/2]

const double * Ogre::GpuProgramParameters::getDoublePointer | ( | size_t | pos | ) | const
| inline

Get a pointer to the 'nth' item in the double buffer.

## ◆ getIntPointer() [1/2]

int * Ogre::GpuProgramParameters::getIntPointer | ( | size_t | pos | ) |
| inline

Get a pointer to the 'nth' item in the int buffer.

## ◆ getIntPointer() [2/2]

const int * Ogre::GpuProgramParameters::getIntPointer | ( | size_t | pos | ) | const
| inline

Get a pointer to the 'nth' item in the int buffer.

## ◆ getUnsignedIntPointer() [1/2]

uint * Ogre::GpuProgramParameters::getUnsignedIntPointer | ( | size_t | pos | ) |
| inline

Get a pointer to the 'nth' item in the uint buffer.

## ◆ getUnsignedIntPointer() [2/2]

const uint * Ogre::GpuProgramParameters::getUnsignedIntPointer | ( | size_t | pos | ) | const
| inline

Get a pointer to the 'nth' item in the uint buffer.

## ◆ getRegPointer() [1/2]

int * Ogre::GpuProgramParameters::getRegPointer | ( | size_t | pos | ) |
| inline

get a pointer to register storage

## ◆ getRegPointer() [2/2]

const int * Ogre::GpuProgramParameters::getRegPointer | ( | size_t | pos | ) | const
| inline

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

## ◆ getAutoConstantList()

const AutoConstantList & Ogre::GpuProgramParameters::getAutoConstantList | ( |  | ) | const
| inline

Get a reference to the list of auto constant bindings.

## ◆ setAutoConstant() [1/2]

void Ogre::GpuProgramParameters::setAutoConstant | ( | size_t | index,
|  | AutoConstantType | acType,
|  | uint32 | extraInfo = 0 )

Sets up a constant which will automatically be updated by the system.

Vertex and fragment programs often need parameters which are to do with the current render state, or particular values which may very well change over time, and often between objects which are being rendered. This feature allows you to set up a certain number of predefined parameter mappings that are kept up to date for you.

Parameters

  index | The location in the constant list to place this updated constant every time it is changed. Note that because of the nature of the types, we know how big the parameter details will be so you don't need to set that like you do for manual constants.
  acType | The type of automatic constant to set
  extraInfo | If the constant type needs more information (like a light index or array size) put it here.

Referenced by setAutoConstant().

## ◆ setAutoConstantReal()

void Ogre::GpuProgramParameters::setAutoConstantReal | ( | size_t | index,
|  | AutoConstantType | acType,
|  | float | rData )

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Referenced by setConstantFromTime().

## ◆ setAutoConstant() [2/2]

void Ogre::GpuProgramParameters::setAutoConstant | ( | size_t | index,
|  | AutoConstantType | acType,
|  | uint16 | extraInfo1,
|  | uint16 | extraInfo2 )
| inline

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

References setAutoConstant().

## ◆ _setRawAutoConstant()

void Ogre::GpuProgramParameters::_setRawAutoConstant | ( | size_t | physicalIndex,
|  | AutoConstantType | acType,
|  | uint32 | extraInfo,
|  | uint16 | variability,
|  | uint8 | elementSize = 4 )

As setAutoConstant, but sets up the auto constant directly against a physical buffer index.

## ◆ _setRawAutoConstantReal()

void Ogre::GpuProgramParameters::_setRawAutoConstantReal | ( | size_t | physicalIndex,
|  | AutoConstantType | acType,
|  | float | rData,
|  | uint16 | variability,
|  | uint8 | elementSize = 4 )

As setAutoConstantReal, but sets up the auto constant directly against a physical buffer index.

## ◆ clearAutoConstant()

void Ogre::GpuProgramParameters::clearAutoConstant | ( | size_t | index | ) |

Unbind an auto constant so that the constant is manually controlled again.

## ◆ setConstantFromTime()

void Ogre::GpuProgramParameters::setConstantFromTime | ( | size_t | index,
|  | Real | factor )
| inline

Deprecated
  use ACT_TIME directly

References ACT_TIME, and setAutoConstantReal().

## ◆ clearAutoConstants()

void Ogre::GpuProgramParameters::clearAutoConstants | ( | void |  | ) |

Clears all the existing automatic constants.

## ◆ getAutoConstants()

const AutoConstantList & Ogre::GpuProgramParameters::getAutoConstants | ( |  | ) | const
| inline

Gets the automatic constant bindings currently in place.

## ◆ getAutoConstantCount()

size_t Ogre::GpuProgramParameters::getAutoConstantCount | ( | void |  | ) | const
| inline

Gets the number of int constants that have been set.

## ◆ getAutoConstantEntry()

AutoConstantEntry * Ogre::GpuProgramParameters::getAutoConstantEntry | ( | const size_t | index | ) |

Gets a specific Auto Constant entry if index is in valid range otherwise returns a NULL.

Parameters

  index | which entry is to be retrieved

## ◆ hasAutoConstants()

bool Ogre::GpuProgramParameters::hasAutoConstants | ( | void |  | ) | const
| inline

Returns true if this instance has any automatic constants.

## ◆ findFloatAutoConstantEntry()

const AutoConstantEntry * Ogre::GpuProgramParameters::findFloatAutoConstantEntry | ( | size_t | logicalIndex | ) |

Finds an auto constant that's affecting a given logical parameter index for floating-point values.

Note
  Only applicable for low-level programs.

## ◆ findAutoConstantEntry()

const AutoConstantEntry * Ogre::GpuProgramParameters::findAutoConstantEntry | ( | const String & | paramName | ) | const

Finds an auto constant that's affecting a given named parameter index.

Note
  Only applicable to high-level programs.

## ◆ _findRawAutoConstantEntryFloat()

const AutoConstantEntry * Ogre::GpuProgramParameters::_findRawAutoConstantEntryFloat | ( | size_t | physicalIndex | ) | const

Finds an auto constant that's affecting a given physical position in the floating-point buffer.

## ◆ setNamedAutoConstant() [1/2]

void Ogre::GpuProgramParameters::setNamedAutoConstant | ( | const String & | name,
|  | AutoConstantType | acType,
|  | uint32 | extraInfo = 0 )

Sets up a constant which will automatically be updated by the system.

Vertex and fragment programs often need parameters which are to do with the current render state, or particular values which may very well change over time, and often between objects which are being rendered. This feature allows you to set up a certain number of predefined parameter mappings that are kept up to date for you.

Note
  This named option will only work if you are using a parameters object created from a high-level program (HighLevelGpuProgram).

Parameters

  name | The name of the parameter
  acType | The type of automatic constant to set
  extraInfo | If the constant type needs more information (like a light index) put it here.

Referenced by setNamedAutoConstant().

## ◆ setNamedAutoConstantReal()

void Ogre::GpuProgramParameters::setNamedAutoConstantReal | ( | const String & | name,
|  | AutoConstantType | acType,
|  | Real | rData )

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Referenced by setNamedConstantFromTime().

## ◆ setNamedAutoConstant() [2/2]

void Ogre::GpuProgramParameters::setNamedAutoConstant | ( | const String & | name,
|  | AutoConstantType | acType,
|  | uint16 | extraInfo1,
|  | uint16 | extraInfo2 )
| inline

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

References setNamedAutoConstant().

## ◆ setNamedConstantFromTime()

void Ogre::GpuProgramParameters::setNamedConstantFromTime | ( | const String & | name,
|  | Real | factor )
| inline

Deprecated
  use ACT_TIME directly

References ACT_TIME, and setNamedAutoConstantReal().

## ◆ clearNamedAutoConstant()

void Ogre::GpuProgramParameters::clearNamedAutoConstant | ( | const String & | name | ) |

Unbind an auto constant so that the constant is manually controlled again.

## ◆ _updateAutoParams()

void Ogre::GpuProgramParameters::_updateAutoParams | ( | const AutoParamDataSource * | source,
|  | uint16 | variabilityMask )

Update automatic parameters.

Parameters

  source | The source of the parameters
  variabilityMask | A mask of GpuParamVariability which identifies which autos will need updating

## ◆ setIgnoreMissingParams()

void Ogre::GpuProgramParameters::setIgnoreMissingParams | ( | bool | state | ) |
| inline

Tells the program whether to ignore missing parameters or not.

## ◆ setNamedConstant() [1/13]

void Ogre::GpuProgramParameters::setNamedConstant | ( | const String & | name,
|  | float | val )

Sets a single value constant parameter to the program.

Different types of GPU programs support different types of constant parameters. For example, it's relatively common to find that vertex programs only support floating point constants, and that fragment programs only support integer (fixed point) parameters. This can vary depending on the program version supported by the graphics card being used. You should consult the documentation for the type of low level program you are using, or alternatively use the methods provided on RenderSystemCapabilities to determine the options.

Another possible limitation is that some systems only allow constants to be set on certain boundaries, e.g. in sets of 4 values for example. Again, see RenderSystemCapabilities for full details.

Note
  This named option will only work if you are using a parameters object created from a high-level program (HighLevelGpuProgram).

Parameters

  name | The name of the parameter
  val | The value to set

## ◆ setNamedConstant() [2/13]

void Ogre::GpuProgramParameters::setNamedConstant | ( | const String & | name,
|  | int | val )

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

## ◆ setNamedConstant() [3/13]

void Ogre::GpuProgramParameters::setNamedConstant | ( | const String & | name,
|  | uint | val )

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

## ◆ setNamedConstant() [4/13]

void Ogre::GpuProgramParameters::setNamedConstant | ( | const String & | name,
|  | const Vector4 & | val )

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

## ◆ setNamedConstant() [5/13]

void Ogre::GpuProgramParameters::setNamedConstant | ( | const String & | name,
|  | const Vector3 & | val )

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

## ◆ setNamedConstant() [6/13]

void Ogre::GpuProgramParameters::setNamedConstant | ( | const String & | name,
|  | const Vector2 & | val )

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

## ◆ setNamedConstant() [7/13]

void Ogre::GpuProgramParameters::setNamedConstant | ( | const String & | name,
|  | const Matrix4 & | val )

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

## ◆ setNamedConstant() [8/13]

void Ogre::GpuProgramParameters::setNamedConstant | ( | const String & | name,
|  | const ColourValue & | colour )

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

## ◆ setNamedConstant() [9/13]

void Ogre::GpuProgramParameters::setNamedConstant | ( | const String & | name,
|  | const Matrix4 * | m,
|  | size_t | numEntries )

Sets a list of Matrix4 parameters to the program.

Parameters

  name | The name of the parameter; this must be the first index of an array, for examples 'matrices[0]' NB since a Matrix4 is 16 floats long, so each entry will take up 4 indexes.
  m | Pointer to an array of matrices to set
  numEntries | Number of Matrix4 entries

## ◆ setNamedConstant() [10/13]

void Ogre::GpuProgramParameters::setNamedConstant | ( | const String & | name,
|  | const float * | val,
|  | size_t | count,
|  | size_t | multiple = 4 )

Sets a multiple value constant parameter to the program.

Some systems only allow constants to be set on certain boundaries, e.g. in sets of 4 values for example. The 'multiple' parameter allows you to control that although you should only change it if you know your chosen language supports that (at the time of writing, only GLSL allows constants which are not a multiple of 4).

Note
  This named option will only work if you are using a parameters object created from a high-level program (HighLevelGpuProgram).

Parameters

  name | The name of the parameter
  val | Pointer to the values to write
  count | The number of 'multiples' of floats to write
  multiple | The number of raw entries in each element to write, the default is 4 so count = 1 would write 4 floats.

## ◆ setNamedConstant() [11/13]

void Ogre::GpuProgramParameters::setNamedConstant | ( | const String & | name,
|  | const double * | val,
|  | size_t | count,
|  | size_t | multiple = 4 )

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

## ◆ setNamedConstant() [12/13]

void Ogre::GpuProgramParameters::setNamedConstant | ( | const String & | name,
|  | const int * | val,
|  | size_t | count,
|  | size_t | multiple = 4 )

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

## ◆ setNamedConstant() [13/13]

void Ogre::GpuProgramParameters::setNamedConstant | ( | const String & | name,
|  | const uint * | val,
|  | size_t | count,
|  | size_t | multiple = 4 )

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

## ◆ _findNamedConstantDefinition()

const GpuConstantDefinition * Ogre::GpuProgramParameters::_findNamedConstantDefinition | ( | const String & | name,
|  | bool | throwExceptionIfMissing = false ) const

Find a constant definition for a named parameter.

This method returns null if the named parameter did not exist, unlike getConstantDefinition which is more strict; unless you set the last parameter to true.

Parameters

  name | The name to look up
  throwExceptionIfMissing | If set to true, failure to find an entry will throw an exception.

## ◆ _getConstantPhysicalIndex()

size_t Ogre::GpuProgramParameters::_getConstantPhysicalIndex | ( | size_t | logicalIndex,
|  | size_t | requestedSize,
|  | uint16 | variability,
|  | BaseConstantType | type )

Gets the physical buffer index associated with a logical float constant index.

Note
  Only applicable to low-level programs.

Parameters

  logicalIndex | The logical parameter index
  requestedSize | The requested size - pass 0 to ignore missing entries and return std::numeric_limits<size_t>::max()
  variability |
  type |

## ◆ setTransposeMatrices()

void Ogre::GpuProgramParameters::setTransposeMatrices | ( | bool | val | ) |
| inline

Sets whether or not we need to transpose the matrices passed in from the rest of OGRE.

D3D uses transposed matrices compared to GL and OGRE; this is not important when you use programs which are written to process row-major matrices, such as those generated by Cg, but if you use a program written to D3D's matrix layout you will need to enable this flag.

## ◆ getTransposeMatrices()

bool Ogre::GpuProgramParameters::getTransposeMatrices | ( | void |  | ) | const
| inline

Gets whether or not matrices are to be transposed when set.

## ◆ copyConstantsFrom()

void Ogre::GpuProgramParameters::copyConstantsFrom | ( | const GpuProgramParameters & | source | ) |

Copies the values of all constants (including auto constants) from another GpuProgramParameters object.

Note
  This copes the internal storage of the paarameters object and therefore can only be used for parameters objects created from the same GpuProgram. To merge parameters that match from different programs, use copyMatchingNamedConstantsFrom.

References GpuProgramParameters().

## ◆ copyMatchingNamedConstantsFrom()

void Ogre::GpuProgramParameters::copyMatchingNamedConstantsFrom | ( | const GpuProgramParameters & | source | ) |

Copies the values of all matching named constants (including auto constants) from another GpuProgramParameters object.

This method iterates over the named constants in another parameters object and copies across the values where they match. This method is safe to use when the 2 parameters objects came from different programs, but only works for named parameters.

References GpuProgramParameters().

## ◆ getAutoConstantDefinition() [1/2]

const AutoConstantDefinition * Ogre::GpuProgramParameters::getAutoConstantDefinition | ( | const String & | name | ) |
| static

gets the auto constant definition associated with name if found else returns NULL

Parameters

  name | The name of the auto constant

## ◆ getAutoConstantDefinition() [2/2]

const AutoConstantDefinition * Ogre::GpuProgramParameters::getAutoConstantDefinition | ( | AutoConstantType | type | ) |
| static

gets the auto constant definition by auto constant type.

Parameters

  type | The auto constant type

## ◆ getNumAutoConstantDefinitions()

size_t Ogre::GpuProgramParameters::getNumAutoConstantDefinitions | ( | void |  | ) |
| static

Returns the number of auto constant definitions.

## ◆ incPassIterationNumber()

void Ogre::GpuProgramParameters::incPassIterationNumber | ( | void |  | ) |

increments the multipass number entry by 1 if it exists

## ◆ hasPassIterationNumber()

bool Ogre::GpuProgramParameters::hasPassIterationNumber | ( |  | ) | const
| inline

Deprecated
  query by GPV_PASS_ITERATION_NUMBER instead

## ◆ getPassIterationNumberIndex()

size_t Ogre::GpuProgramParameters::getPassIterationNumberIndex | ( |  | ) | const
| inline

Deprecated
  query by GPV_PASS_ITERATION_NUMBER instead

## ◆ addSharedParameters() [1/2]

void Ogre::GpuProgramParameters::addSharedParameters | ( | GpuSharedParametersPtr | sharedParams | ) |

Use a set of shared parameters in this parameters object.

Allows you to use a set of shared parameters to automatically update this parameter set.

## ◆ addSharedParameters() [2/2]

void Ogre::GpuProgramParameters::addSharedParameters | ( | const String & | sharedParamsName | ) |

Use a set of shared parameters in this parameters object.

Allows you to use a set of shared parameters to automatically update this parameter set.

Parameters

  sharedParamsName | The name of a shared parameter set as defined in GpuProgramManager

## ◆ isUsingSharedParameters()

bool Ogre::GpuProgramParameters::isUsingSharedParameters | ( | const String & | sharedParamsName | ) | const

Returns whether this parameter set is using the named shared parameter set.

## ◆ removeSharedParameters()

void Ogre::GpuProgramParameters::removeSharedParameters | ( | const String & | sharedParamsName | ) |

Stop using the named shared parameter set.

## ◆ removeAllSharedParameters()

void Ogre::GpuProgramParameters::removeAllSharedParameters | ( |  | ) |

Stop using all shared parameter sets.

## ◆ getSharedParameters()

const GpuSharedParamUsageList & Ogre::GpuProgramParameters::getSharedParameters | ( |  | ) | const

Get the list of shared parameter sets.

## ◆ _copySharedParams()

void Ogre::GpuProgramParameters::_copySharedParams | ( |  | ) |

Update the parameters by copying the data from the shared parameters.

Note
  This method may not actually be called if the RenderSystem supports using shared parameters directly in their own shared buffer; in which case the values should not be copied out of the shared area into the individual parameter set, but bound separately.

## ◆ _updateSharedParams()

void Ogre::GpuProgramParameters::_updateSharedParams | ( |  | ) |

Update the HardwareBuffer based backing of referenced shared parameters.

falls back to _copySharedParams() if a shared parameter is not hardware backed

## ◆ calculateSize()

size_t Ogre::GpuProgramParameters::calculateSize | ( | void |  | ) | const

The documentation for this class was generated from the following file:

- OgreGpuProgramParams.h