OGRE: Effects

| OGRE 14.5 Object-Oriented Graphics Rendering Engine

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Effects
Core

## Classes
class | Ogre::Billboard
| A billboard is a primitive which always faces the camera in every frame. More...
class | Ogre::BillboardChain
| Allows the rendering of a chain of connected billboards. More...
class | Ogre::BillboardParticleRenderer
| Specialisation of ParticleSystemRenderer to render particles using a BillboardSet. More...
class | Ogre::BillboardParticleRendererFactory
| Factory class for BillboardParticleRenderer. More...
class | Ogre::BillboardSet
| A collection of billboards (faces which are always facing the given direction) with the same (default) dimensions, material and which are fairly close proximity to each other. More...
class | Ogre::CompositionPass
| Object representing one pass or operation in a composition sequence. More...
class | Ogre::CompositionTargetPass
| Object representing one render to a RenderTarget or Viewport in the Ogre Composition framework. More...
class | Ogre::CompositionTechnique
| Base composition technique, can be subclassed in plugins. More...
class | Ogre::Compositor
| Class representing a Compositor object. More...
class | Ogre::CompositorChain
| Chain of compositor effects applying to one viewport. More...
class | Ogre::CompositorInstance
| An instance of a Compositor object for one Viewport. More...
class | Ogre::CompositorLogic
| Interface for compositor logics, which can be automatically binded to compositors, allowing per-compositor logic (such as attaching a relevant listener) to happen automatically. More...
class | Ogre::CompositorManager
| Class for managing Compositor settings for Ogre. More...
class | Ogre::CustomCompositionPass
| Interface for custom composition passes, allowing custom operations (in addition to the quad, scene and clear operations) in composition passes. More...
class | Ogre::Particle
| Class representing a single particle instance. More...
class | Ogre::ParticleAffector
| Abstract class defining the interface to be implemented by particle affectors. More...
class | Ogre::ParticleAffectorFactory
| Abstract class defining the interface to be implemented by creators of ParticleAffector subclasses. More...
class | Ogre::ParticleEmitter
| Abstract class defining the interface to be implemented by particle emitters. More...
class | Ogre::ParticleEmitterFactory
| Abstract class defining the interface to be implemented by creators of ParticleEmitter subclasses. More...
class | Ogre::ParticleSystem
| Class defining particle system based special effects. More...
class | Ogre::ParticleSystemManager
| Manages particle systems, particle system scripts (templates) and the available emitter & affector factories. More...
class | Ogre::ParticleSystemRenderer
| Abstract class defining the interface required to be implemented by classes which provide rendering capability to ParticleSystem instances. More...
class | Ogre::RibbonTrail
| Subclass of BillboardChain which automatically leaves a trail behind one or more Node instances. More...

## Enumerations
enum | Ogre::BillboardOrigin { Ogre::BBO_TOP_LEFT , Ogre::BBO_TOP_CENTER , Ogre::BBO_TOP_RIGHT , Ogre::BBO_CENTER_LEFT , Ogre::BBO_CENTER , Ogre::BBO_CENTER_RIGHT , Ogre::BBO_BOTTOM_LEFT , Ogre::BBO_BOTTOM_CENTER , Ogre::BBO_BOTTOM_RIGHT }
| Enum covering what exactly a billboard's position means (center, top-left etc). More...
enum | Ogre::BillboardRotationType { Ogre::BBR_VERTEX , Ogre::BBR_TEXCOORD }
| The rotation type of billboard. More...
enum | Ogre::BillboardType { Ogre::BBT_POINT , Ogre::BBT_ORIENTED_COMMON , Ogre::BBT_ORIENTED_SELF , Ogre::BBT_PERPENDICULAR_COMMON , Ogre::BBT_PERPENDICULAR_SELF }
| The type of billboard to use. More...

## Detailed Description

## Enumeration Type Documentation

## ◆ BillboardOrigin

enum Ogre::BillboardOrigin

Enum covering what exactly a billboard's position means (center, top-left etc).

This setting controls the fine tuning of where a billboard appears in relation to it's position. It could be that a billboard's position represents it's center (e.g. for fireballs), it could mean the center of the bottom edge (e.g. a tree which is positioned on the ground), the top-left corner (e.g. a cursor).

Enumerator
BBO_TOP_LEFT |
BBO_TOP_CENTER |
BBO_TOP_RIGHT |
BBO_CENTER_LEFT |
BBO_CENTER |
BBO_CENTER_RIGHT |
BBO_BOTTOM_LEFT |
BBO_BOTTOM_CENTER |
BBO_BOTTOM_RIGHT |

## ◆ BillboardRotationType

enum Ogre::BillboardRotationType

The rotation type of billboard.

By default, billboard particles will rotate the texture coordinates to according with particle rotation. But rotate texture coordinates has some disadvantage, e.g. the corners of the texture will lost after rotate, and the corners of the billboard will fill with unwanted texture area when using wrap address mode or sub-texture sampling. This settings allow you specifying other rotation type.

Enumerator
BBR_VERTEX | Rotate the billboard's vertices around their facing direction.
BBR_TEXCOORD | Rotate the billboard's texture coordinates.

## ◆ BillboardType

enum Ogre::BillboardType

The type of billboard to use.

Enumerator
BBT_POINT | Standard point billboard (default), always faces the camera completely and is always upright.
BBT_ORIENTED_COMMON | Billboards are oriented around a shared direction vector (used as Y axis) and only rotate around this to face the camera.
BBT_ORIENTED_SELF | Billboards are oriented around their own direction vector (their own Y axis) and only rotate around this to face the camera.
BBT_PERPENDICULAR_COMMON | Billboards are perpendicular to a shared direction vector (used as Z axis, the facing direction) and X, Y axis are determined by a shared up-vertor.
BBT_PERPENDICULAR_SELF | Billboards are perpendicular to their own direction vector (their own Z axis, the facing direction) and X, Y axis are determined by a shared up-vertor.