CC3Fog Class Reference

#import <CC3UtilityMeshNodes.h>

Inheritance diagram for CC3Fog:

Instance Methods
(void)	- update:
Instance Methods inherited from CC3MeshNode
(CC3Material *)	- __deprecated
(void)	- __deprecated
(void)	- __deprecated
(void)	- __deprecated
(void)	- __deprecated
(void)	- addTexture:
(CC3Face)	- deformedFaceAt:
(CC3Vector)	- deformedFaceCenterAt:
(CC3Vector)	- deformedFaceNormalAt:
(CC3Plane)	- deformedFacePlaneAt:
(CC3Vector)	- deformedVertexLocationAt:fromFaceAt:
(void)	- drawWithVisitor:
(CC3Mesh *)	- ensureMesh
(void)	- expectsVerticallyFlippedTexture:inTextureUnit:
(BOOL)	- expectsVerticallyFlippedTextureInTextureUnit:
(CC3Face)	- faceAt:
(CC3Vector)	- faceCenterAt:
(GLuint)	- faceCountFromVertexCount:
(GLuint)	- faceCountFromVertexIndexCount:
(CC3Face)	- faceFromIndices:
(CC3FaceIndices)	- faceIndicesAt:
(CC3FaceNeighbours)	- faceNeighboursAt:
(CC3Vector)	- faceNormalAt:
(CC3Plane)	- facePlaneAt:
(GLuint)	- findFirst:globalIntersections:ofGlobalRay:acceptBackFaces:acceptBehindRay:
(GLuint)	- findFirst:intersections:ofLocalRay:acceptBackFaces:acceptBehindRay:
(void)	- flipHorizontallyTextureUnit:
(void)	- flipTexturesHorizontally
(void)	- flipTexturesVertically
(void)	- flipVerticallyTextureUnit:
(CC3Material *)	- makeMaterial
(CC3Mesh *)	- makeMesh
(void)	- moveMeshOriginTo:
(void)	- moveMeshOriginToCenterOfGeometry
(void)	- movePivotTo:
(void)	- populateAsBitmapFontLabelFromString:fromFontFile:andLineHeight:andTextAlignment:andRelativeOrigin:andTessellation:
(void)	- populateAsCenteredRectangleWithSize:
(void)	- populateAsCenteredRectangleWithSize:andTessellation:
(void)	- populateAsCenteredRectangleWithSize:andTessellation:withTexture:invertTexture:
(void)	- populateAsCenteredRectangleWithSize:withTexture:invertTexture:
(void)	- populateAsCenteredTexturedRectangleWithSize:
(void)	- populateAsCenteredTexturedRectangleWithSize:andTessellation:
(void)	- populateAsCubeMappedSolidBox:
(void)	- populateAsDiskWithRadius:andTessellation:
(void)	- populateAsHollowConeWithRadius:height:andTessellation:
(void)	- populateAsLineStripWith:vertices:andRetain:
(void)	- populateAsRectangleWithSize:andPivot:
(void)	- populateAsRectangleWithSize:andPivot:andTessellation:
(void)	- populateAsRectangleWithSize:andPivot:andTessellation:withTexture:invertTexture:
(void)	- populateAsRectangleWithSize:andPivot:withTexture:invertTexture:
(void)	- populateAsRectangleWithSize:andRelativeOrigin:
(void)	- populateAsRectangleWithSize:andRelativeOrigin:andTessellation:
(void)	- populateAsSolidBox:
(void)	- populateAsSolidBox:withCorner:
(void)	- populateAsSphereWithRadius:andTessellation:
(void)	- populateAsTexturedBox:
(void)	- populateAsTexturedBox:withCorner:
(void)	- populateAsTexturedRectangleWithSize:andPivot:
(void)	- populateAsTexturedRectangleWithSize:andPivot:andTessellation:
(void)	- populateAsTriangle:withTexCoords:andTessellation:
(void)	- populateAsWireBox:
(CC3Mesh *)	- prepareParametricMesh
(void)	- removeAllTextures
(void)	- removeLocalShaders
(void)	- repeatTexture:
(void)	- repeatTexture:forTextureUnit:
(CC3ShaderProgram *)	- selectShaderProgram
(void)	- setTexture:forTextureUnit:
(void)	- setTextureRectangle:forTextureUnit:
(void)	- setVertexBitangent:at:
(void)	- setVertexBoneIndex:forBoneInfluence:at:
(void)	- setVertexBoneIndices:at:
(void)	- setVertexBoneWeights:at:
(void)	- setVertexColor4B:at:
(void)	- setVertexColor4F:at:
(void)	- setVertexHomogeneousLocation:at:
(void)	- setVertexIndex:at:
(void)	- setVertexLocation:at:
(void)	- setVertexMatrixIndex:forVertexUnit:at:
(void)	- setVertexMatrixIndices:at:
(void)	- setVertexNormal:at:
(void)	- setVertexTangent:at:
(void)	- setVertexTexCoord2F:at:
(void)	- setVertexTexCoord2F:at:forTextureUnit:
(void)	- setVertexTexCoord2F:forTextureUnit:at:
(void)	- setVertexWeight:forBoneInfluence:at:
(void)	- setVertexWeight:forVertexUnit:at:
(void)	- setVertexWeights:at:
(CC3Texture *)	- textureForTextureUnit:
(CGRect)	- textureRectangleForTextureUnit:
(void)	- updateGLBuffers
(void)	- updateVertexBitangentsGLBuffer
(void)	- updateVertexBoneIndicesGLBuffer
(void)	- updateVertexBoneWeightsGLBuffer
(void)	- updateVertexColorsGLBuffer
(void)	- updateVertexIndicesGLBuffer
(void)	- updateVertexLocationsGLBuffer
(void)	- updateVertexNormalsGLBuffer
(void)	- updateVertexTangentsGLBuffer
(void)	- updateVertexTextureCoordinatesGLBuffer
(void)	- updateVertexTextureCoordinatesGLBufferForTextureUnit:
(CC3Vector)	- vertexBitangentAt:
(GLuint)	- vertexBoneIndexForBoneInfluence:at:
(GLvoid *)	- vertexBoneIndicesAt:
(GLfloat *)	- vertexBoneWeightsAt:
(ccColor4B)	- vertexColor4BAt:
(ccColor4F)	- vertexColor4FAt:
(GLuint)	- vertexCountFromFaceCount:
(CC3Vector4)	- vertexHomogeneousLocationAt:
(GLuint)	- vertexIndexAt:
(GLuint)	- vertexIndexCountFromFaceCount:
(CC3Vector)	- vertexLocationAt:
(GLuint)	- vertexMatrixIndexForVertexUnit:at:
(GLvoid *)	- vertexMatrixIndicesAt:
(CC3Vector)	- vertexNormalAt:
(CC3Vector)	- vertexTangentAt:
(ccTex2F)	- vertexTexCoord2FAt:
(ccTex2F)	- vertexTexCoord2FAt:forTextureUnit:
(ccTex2F)	- vertexTexCoord2FForTextureUnit:at:
(GLfloat)	- vertexWeightForBoneInfluence:at:
(GLfloat)	- vertexWeightForVertexUnit:at:
(GLfloat *)	- vertexWeightsAt:
Instance Methods inherited from CC3LocalContentNode
(void)	- checkDrawingOrder
(CC3Box)	- localContentBoundingBoxRelativeTo:
Instance Methods inherited from CC3Node
(void)	- addAndLocalizeChild:
(void)	- addAnimation:asTrack:
(GLuint)	- addAnimationFrom:to:
(void)	- addAnimationFrom:to:asTrack:
(GLuint)	- addAnimationFrom:to:ofBaseTrack:
(void)	- addAnimationFrom:to:ofBaseTrack:asTrack:
(GLuint)	- addAnimationFromCAFFile:
(void)	- addAnimationFromCAFFile:asTrack:
(GLuint)	- addAnimationFromCAFFile:linkedToCSFFile:
(void)	- addAnimationFromCAFFile:linkedToCSFFile:asTrack:
(GLuint)	- addAnimationFromFrame:toFrame:
(void)	- addAnimationFromFrame:toFrame:asTrack:
(GLuint)	- addAnimationFromFrame:toFrame:ofBaseTrack:
(void)	- addAnimationFromFrame:toFrame:ofBaseTrack:asTrack:
(GLuint)	- addAnimationFromPODFile:
(void)	- addAnimationFromPODFile:asTrack:
(GLuint)	- addAnimationInResource:
(void)	- addAnimationInResource:asTrack:
(void)	- addAnimationState:
(void)	- addAxesDirectionMarkers
(void)	- addChild:
(void)	- addContentFromPODFile:
(void)	- addContentFromPODFile:withName:
(void)	- addContentFromPODResourceFile:
(void)	- addContentFromPODResourceFile:withName:
(void)	- addDirectionMarker
(void)	- addDirectionMarkerColored:inDirection:
(void)	- addShadowVolumes
(void)	- addShadowVolumesForLight:
(void)	- addTransformListener:
(void)	- alignInvertedTextures
(void)	- alignTextures
(GLfloat)	- animationBlendingWeightOnTrack:
(CCTime)	- animationTimeOnTrack:
(NSString *)	- appendStructureDescriptionTo:withIndent:
(void)	- applyEffectNamed:inPFXResourceFile:
(void)	- applyEffectNamed:inPFXResourceNamed:
(void)	- applyLocalTransformsTo:
(CC3Node *)	- asBumpMapLightTrackingWrapper
(CC3Node *)	- asCameraTrackingWrapper
(CC3Node *)	- asOrientingWrapper
(CC3Node *)	- asTrackingWrapper
(void)	- bindRestPose
(CC3Box)	- boundingBoxRelativeTo:
(void)	- buildTransformMatrixWithVisitor:
(void)	- cleanupActions
(CC3Node *)	- closestNodeIntersectedByGlobalRay:
(BOOL)	- containsAnimationOnTrack:
(id)	- copy
(id)	- copyWithName:
(void)	- createBoundingVolume
(void)	- createBoundingVolumes
(void)	- createGLBuffers
(void)	- createSkinnedBoundingVolumes
(CC3NodeBoundingVolume *)	- defaultBoundingVolume
(void)	- deleteBoundingVolumes
(void)	- deleteGLBuffers
(NSString *)	- describeAnimationStateForFrames:
(NSString *)	- describeAnimationStateForFrames:fromTime:toTime:
(NSString *)	- describeCurrentAnimationState
(void)	- disableAllAnimation
(void)	- disableAllAnimationOnTrack:
(void)	- disableAllLocationAnimation
(void)	- disableAllQuaternionAnimation
(void)	- disableAllScaleAnimation
(void)	- disableAnimation
(void)	- disableAnimationOnTrack:
(void)	- disableLocationAnimation
(void)	- disableQuaternionAnimation
(void)	- disableScaleAnimation
(BOOL)	- doesIntersectBoundingVolume:
(BOOL)	- doesIntersectFrustum:
(BOOL)	- doesIntersectGlobalRay:
(BOOL)	- doesIntersectNode:
(void)	- doNotBufferVertexBitangents
(void)	- doNotBufferVertexBoneIndices
(void)	- doNotBufferVertexBoneWeights
(void)	- doNotBufferVertexColors
(void)	- doNotBufferVertexContent
(void)	- doNotBufferVertexIndices
(void)	- doNotBufferVertexLocations
(void)	- doNotBufferVertexNormals
(void)	- doNotBufferVertexPointSizes
(void)	- doNotBufferVertexTangents
(void)	- doNotBufferVertexTextureCoordinates
(void)	- enableAllAnimation
(void)	- enableAllAnimationOnTrack:
(void)	- enableAllLocationAnimation
(void)	- enableAllQuaternionAnimation
(void)	- enableAllScaleAnimation
(void)	- enableAnimation
(void)	- enableAnimationOnTrack:
(void)	- enableLocationAnimation
(void)	- enableQuaternionAnimation
(void)	- enableScaleAnimation
(void)	- ensureRigidSkeleton
(void)	- establishAnimationFrameAt:
(void)	- establishAnimationFrameAt:onTrack:
(NSArray *)	- flatten
(void)	- flattenInto:
(void)	- flipNormals
(void)	- freezeAllInanimatesOnTrack:
(void)	- freezeIfInanimateOnTrack:
(CCAction *)	- getActionByTag:
(CC3NodeAnimation *)	- getAnimationOnTrack:
(CC3NodeAnimationState *)	- getAnimationStateOnTrack:
(CC3MeshNode *)	- getMeshNodeNamed:
(CC3Node *)	- getNodeNamed:
(CC3Node *)	- getNodeTagged:
(CC3ShadowVolumeMeshNode *)	- getShadowVolumeForLight:
(CC3Vector)	- globalLocationOfGlobalRayIntesection:
(CC3Matrix *)	- globalRotationMatrix
(BOOL)	- hasShadowVolumes
(BOOL)	- hasShadowVolumesForLight:
(void)	- hide
(BOOL)	- isAnimationEnabledOnTrack:
(BOOL)	- isDescendantOf:
(BOOL)	- isShadowVisible
(void)	- linkToPODNodes:
(CC3Vector)	- locationOfGlobalRayIntesection:
(void)	- markAnimationDirty
(void)	- markBoundingVolumeDirty
(void)	- markTransformDirty
(PODStructPtr)	- nodePODStructAtIndex:fromPODResource:
(CC3NodePuncturingVisitor *)	- nodesIntersectedByGlobalRay:
(void)	- nodeWasDestroyed:
(void)	- nodeWasTransformed:
(NSInteger)	- numberOfRunningActions
(void)	- pauseAllActions
(void)	- prewarmForShadowVolumes
(void)	- reattachBonesFrom:
(void)	- releaseRedundantContent
(void)	- remove
(void)	- removeAllChildren
(void)	- removeAllDirectionMarkers
(void)	- removeAllTransformListeners
(void)	- removeAnimation:
(void)	- removeAnimationState:
(void)	- removeAnimationTrack:
(void)	- removeChild:
(void)	- removeShaders
(void)	- removeShadowVolumes
(void)	- removeShadowVolumesForLight:
(void)	- removeTransformListener:
(void)	- resumeAllActions
(void)	- retainVertexBitangents
(void)	- retainVertexBoneIndices
(void)	- retainVertexBoneWeights
(void)	- retainVertexColors
(void)	- retainVertexContent
(void)	- retainVertexIndices
(void)	- retainVertexLocations
(void)	- retainVertexNormals
(void)	- retainVertexPointSizes
(void)	- retainVertexTangents
(void)	- retainVertexTextureCoordinates
(void)	- rotateBy:
(void)	- rotateByAngle:aroundAxis:
(void)	- rotateByAngle:aroundAxis:atLocation:
(void)	- rotateByQuaternion:
(CCAction *)	- runAction:
(CCAction *)	- runAction:withTag:
(void)	- selectShaders
(void)	- setAnimationBlendingWeight:onTrack:
(void)	- setSkeletalBoundingVolume:
(void)	- show
(void)	- stopAction:
(void)	- stopActionByTag:
(void)	- stopAllActions
(void)	- touchDisableAll
(void)	- touchEnableAll
(void)	- trackTargetWithVisitor:
(void)	- transformAndDrawWithVisitor:
(void)	- translateBy:
(void)	- updateAfterTransform:
(void)	- updateBeforeTransform:
(void)	- wasAdded
(void)	- wasRemoved
Instance Methods inherited from CC3Identifiable
(id)	- copyAsClass:
(void)	- copyUserDataFrom:
(id)	- copyWithName:asClass:
(id)	- copyWithZone:withName:
(id)	- copyWithZone:withName:asClass:
(BOOL)	- deriveNameFrom:
(BOOL)	- deriveNameFrom:usingSuffix:
(NSString *)	- fullDescription
(id)	- init
(id)	- initAtIndex:fromPODResource:
(void)	- initUserData
(id)	- initWithName:
(id)	- initWithTag:
(id)	- initWithTag:withName:
(GLuint)	- nextTag
(void)	- populateFrom:

Class Methods
(id)	+ fog

Properties
ccColor4F floatColor	__deprecated
GLenum	attenuationMode
GLfloat	density
GLfloat	endDistance
GLenum	performanceHint
GLfloat	startDistance
Properties inherited from CC3MeshNode
CC3Mesh *meshModel	__deprecated
ccColor4F pureColor	__deprecated
BOOL hasPremultipliedAlpha	__deprecated
GLuint vertexUnitCount	__deprecated
GLenum matrixIndexType	__deprecated
ccColor4F	ambientColor
ccBlendFunc	blendFunc
CCColorRef	color
ccColor4F	diffuseColor
GLenum	drawingMode
CC3NormalScaling	effectiveNormalScalingMethod
ccColor4F	emissionColor
BOOL	expectsVerticallyFlippedTextures
GLuint	faceCount
BOOL	hasRigidSkeleton
BOOL	hasSkeleton
BOOL	hasTextureAlpha
BOOL	hasTexturePremultipliedAlpha
BOOL	isDrawingPointSprites
BOOL	isOpaque
BOOL	isUsingGLBuffers
CC3Material *	material
CC3Mesh *	mesh
CCOpacity	opacity
int	podMaterialIndex
GLfloat	reflectivity
CC3ShaderContext *	shaderContext
CC3ShaderProgram *	shaderProgram
GLfloat	shininess
BOOL	shouldApplyOpacityToColor
BOOL	shouldCacheFaces
BOOL	shouldDrawLowAlpha
BOOL	shouldUseLighting
BOOL	shouldUseLightProbes
ccColor4F	specularColor
CC3Texture *	texture
GLuint	textureCount
CGRect	textureRectangle
GLuint	vertexBoneCount
GLenum	vertexBoneIndexType
GLenum	vertexColorType
CC3VertexContent	vertexContentTypes
GLuint	vertexCount
GLuint	vertexIndexCount
Properties inherited from CC3LocalContentNode
CC3Box	globalLocalContentBoundingBox
CC3Vector	globalLocalContentCenterOfGeometry
CC3Box	localContentBoundingBox
CC3Vector	localContentCenterOfGeometry
CC3WireframeBoundingBoxNode *	localContentWireframeBoxNode
BOOL	shouldDrawLocalContentWireframeBox
Properties inherited from CC3Node
CC3Vector sceneUpDirection	__deprecated
CC3Vector worldUpDirection	__deprecated
GLfloat scaleTolerance	__deprecated
CC3TargettingConstraint axisRestriction	__deprecated
CC3Vector globalLightLocation	__deprecated
CC3Matrix *transformMatrix	__deprecated
CC3Matrix *transformMatrixInverted	__deprecated
CC3Node *dirtiestAncestor	__deprecated
CC3Matrix *parentGlobalTransformMatrix	__deprecated
CC3Matrix *parentTransformMatrix	__deprecated
CC3Scene *world	__deprecated
BOOL shouldCleanupActionsWhenRemoved	__deprecated
BOOL shouldCleanupWhenRemoved	__deprecated
CC3Camera *	activeCamera
ccColor4F	ambientColor
CC3NodeAnimation *	animation
CC3NodeAnimationState *	animationState
ccBlendFunc	blendFunc
CC3Box	boundingBox
CC3NodeBoundingVolume *	boundingVolume
GLfloat	boundingVolumePadding
GLfloat	cameraDistanceProduct
CC3Vector	centerOfGeometry
NSArray *	children
CCColorRef	color
BOOL	containsAnimation
GLfloat	decalOffsetFactor
GLfloat	decalOffsetUnits
GLenum	depthFunction
CC3NodeDescriptor *	descriptorNode
ccColor4F	diffuseColor
NSArray *	directionMarkers
ccColor4F	emissionColor
BOOL	expectsVerticallyFlippedTextures
CC3Vector	forwardDirection
CC3Box	globalBoundingBox
CC3Vector	globalCenterOfGeometry
CC3Vector	globalForwardDirection
CC3Vector4	globalHomogeneousPosition
CC3Vector4	globalLightPosition
CC3Vector	globalLocation
CC3Vector	globalRightDirection
CC3Vector	globalRotation
CC3Vector	globalScale
CC3Matrix *	globalTransformMatrix
CC3Matrix *	globalTransformMatrixInverted
CC3Vector	globalUpDirection
BOOL	hasLocalContent
BOOL	hasSoftBodyContent
BOOL	hasTarget
BOOL	isAnimationEnabled
BOOL	isBasePODNode
BOOL	isBillboard
BOOL	isCamera
BOOL	isLight
BOOL	isLightProbe
BOOL	isMeshNode
BOOL	isOpaque
BOOL	isRunning
BOOL	isScene
BOOL	isShadowVolume
BOOL	isTouchable
BOOL	isTrackingForBumpMapping
BOOL	isTransformDirty
BOOL	isTransformRigid
BOOL	isUniformlyScaledGlobally
BOOL	isUniformlyScaledLocally
GLenum	lineSmoothingHint
GLfloat	lineWidth
CC3Matrix *	localTransformMatrix
CC3Vector	location
CC3NormalScaling	normalScalingMethod
CCOpacity	opacity
CC3Node *	parent
CC3PerformanceStatistics *	performanceStatistics
GLint	podContentIndex
GLint	podParentIndex
GLint	podTargetIndex
CC3Vector	projectedLocation
CGPoint	projectedPosition
CC3Quaternion	quaternion
CC3Vector	referenceUpDirection
GLfloat	reflectivity
const char *	renderStreamGroupMarker
CC3Vector	rightDirection
CC3Node *	rootAncestor
CC3Vector	rotation
GLfloat	rotationAngle
CC3Vector	rotationAxis
CC3Rotator *	rotator
CC3Vector	scale
CC3Scene *	scene
CC3ShaderContext *	shaderContext
CC3ShaderProgram *	shaderProgram
GLfloat	shadowExpansionLimitFactor
GLushort	shadowLagCount
GLushort	shadowLagFactor
GLfloat	shadowOffsetFactor
GLfloat	shadowOffsetUnits
NSArray *	shadowVolumes
GLfloat	shadowVolumeVertexOffsetFactor
GLfloat	shininess
BOOL	shouldAddShadowVolumeEndCapsOnlyWhenNeeded
BOOL	shouldAllowTouchableWhenInvisible
BOOL	shouldApplyOpacityAndColorToMeshContent
BOOL	shouldAutoremoveWhenEmpty
BOOL	shouldAutotargetCamera
BOOL	shouldBlendAtFullOpacity
BOOL	shouldCacheFaces
BOOL	shouldCastShadows
BOOL	shouldCastShadowsWhenInvisible
BOOL	shouldCullBackFaces
BOOL	shouldCullFrontFaces
BOOL	shouldDisableDepthMask
BOOL	shouldDisableDepthTest
BOOL	shouldDrawAllBoundingVolumes
BOOL	shouldDrawAllDescriptors
BOOL	shouldDrawAllLocalContentWireframeBoxes
BOOL	shouldDrawAllWireframeBoxes
BOOL	shouldDrawBoundingVolume
BOOL	shouldDrawDescriptor
BOOL	shouldDrawInClipSpace
BOOL	shouldDrawWireframeBox
BOOL	shouldIgnoreRayIntersection
BOOL	shouldInheritTouchability
BOOL	shouldLogIntersectionMisses
BOOL	shouldLogIntersections
BOOL	shouldShadowBackFaces
BOOL	shouldShadowFrontFaces
BOOL	shouldSmoothLines
BOOL	shouldStopActionsWhenRemoved
BOOL	shouldTrackTarget
BOOL	shouldUseClockwiseFrontFaceWinding
BOOL	shouldUseFixedBoundingVolume
BOOL	shouldUseLighting
BOOL	shouldUseLightProbes
BOOL	shouldUseSmoothShading
CC3Vector	skeletalScale
CC3SoftBodyNode *	softBodyNode
ccColor4F	specularColor
NSString *	structureDescription
CC3Node *	target
CC3Vector	targetLocation
CC3TargettingConstraint	targettingConstraint
CC3Texture *	texture
CC3Node *	touchableNode
BOOL	touchEnabled
NSSet *	transformListeners
GLfloat	uniformScale
CC3Vector	upDirection
BOOL	visible
CC3WireframeBoundingBoxNode *	wireframeBoxNode
GLint	zOrder
Properties inherited from CC3Identifiable
NSObject *sharedUserData	__deprecated
NSString *	name
NSString *	nameSuffix
GLint	podIndex
BOOL	shouldIncludeInDeepCopy
GLuint	tag
NSObject *	userData
Properties inherited from <CC3Cacheable>
NSString *	name

Detailed Description

CC3Fog is a mesh node that can render fog in the 3D scene.

Typically, instances of this class are not generally used within the node assembly of a scene. Instead, a single instance of this class is used in the fog property of the CC3Scene.

Fog color is controlled by the diffuseColor property.

The style of attenuation imposed by the fog is set by the attenuationMode property. See the notes of that property for information about how fog attenuates visibility.

Using the performanceHint property, you can direct the GL engine to trade off between faster or nicer rendering quality.

Under OpenGL ES 1.1, fog is implemented as a direct feature of the GL engine, and this class establishes the GL state for that fog.

Under OpenGL versions that support GLSL, fog is rendered as a post-processing effect, typically by rendering the scene to a surface that has both color and depth textures. Add the color and depth textures from the scene-rendering surface to this node, and a shader program that can render the node in clip-space, and provide fog effects. A good choice is the combination of the CC3ClipSpaceTexturable.vsh vertex shader and the CC3Fog.fsh fragment shader.

Method Documentation

+ (id) fog

Allocates and initializes an autoreleased instance.

- (void) update:

(CCTime)

__deprecated

Deprecated:

Use CCActions to control the fog characteristics.

Property Documentation

- (ccColor4F floatColor) __deprecated

readwritenonatomicassign

Deprecated:

Use diffuseColor property instead.

- (GLenum) attenuationMode

readwritenonatomicassign

Indicates how the fog attenuates visibility with distance.

The value of this property must be one of the following sybolic constants: GL_LINEAR, GL_EXP or GL_EXP2.

When the value of this property is GL_LINEAR, the relative visibility of an object in the fog will be determined by the linear function ((e - z) / (e - s)), where s is the value of the start property, e is the value of the end property, and z is the distance of the object from the camera

When the value of this property is GL_EXP, the relative visibility of an object in the fog will be determined by the exponential function e^(-(d - z)), where d is the value of the density property and z is the distance of the object from the camera.

When the value of this property is GL_EXP2, the relative visibility of an object in the fog will be determined by the exponential function e^(-(d - z)^2), where d is the value of the density property and z is the distance of the object from the camera.

The initial value of this property is GL_EXP2.

- (GLfloat) density

readwritenonatomicassign

The density value used in the exponential functions.

This property is only used when the attenuationMode property is set to GL_EXP or GL_EXP2.

See the description of the attenuationMode for a discussion of how the exponential functions determine visibility.

The initial value of this property is 1.0.

- (GLfloat) endDistance

readwritenonatomicassign

The distance from the camera, at which linear attenuation ends.

Objects between this distance and the far clipping plane of the camera will be completely obscured.

This property is only used when the attenuationMode property is set to GL_LINEAR.

See the description of the attenuationMode for a discussion of how the linear function determine visibility.

The initial value of this property is 1.0.

- (GLenum) performanceHint

readwritenonatomicassign

Indicates how the GL engine should trade off between rendering quality and speed.

The value of this property should be one of GL_FASTEST, GL_NICEST, or GL_DONT_CARE.

The initial value of this property is GL_DONT_CARE.

- (GLfloat) startDistance

readwritenonatomicassign

The distance from the camera, at which linear attenuation starts.

Objects between this distance and the near clipping plane of the camera will be completly visible.

This property is only used when the attenuationMode property is set to GL_LINEAR.

See the description of the attenuationMode for a discussion of how the linear function determine visibility.

The initial value of this property is 0.0.

---

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

• CC3UtilityMeshNodes.h