castor3d::shader::ReflectionModel Class Reference

#include <GlslReflection.hpp>

Public Member Functions
C3D_API	ReflectionModel (sdw::ShaderWriter &writer, Utils &utils, uint32_t &envMapBinding, uint32_t envMapSet, bool allowReflections, bool allowRefraction, bool allowIbl, bool hasEnvMap=true)
C3D_API void	computeWithTransmission (BlendComponents &components, LightSurface const &lightSurface, BackgroundModel &background, sdw::CombinedImage2DRgba32 const &mippedScene, CameraData const &camera, sdw::Vec2 const &sceneUv, sdw::UInt const &envMapIndex, ReflectionRefraction &output, DebugOutputCategory const &debugOutput)
C3D_API void	computeWithTransmission (BlendComponents &components, sdw::Vec3 const &wsNormal, sdw::Vec3 const &wsPosition, sdw::Vec3 const &V, sdw::Float const &NdotV, BackgroundModel &background, sdw::CombinedImage2DRgba32 const &mippedScene, CameraData const &camera, sdw::Vec2 const &sceneUv, sdw::UInt const &envMapIndex, ReflectionRefraction &output, DebugOutputCategory const &debugOutput)
C3D_API void	computeWithoutTransmission (BlendComponents &components, LightSurface const &lightSurface, BackgroundModel &background, sdw::UInt const &envMapIndex, sdw::Vec3 &reflectedDiffuse, sdw::Vec3 &reflectedSpecular)
C3D_API sdw::Boolean	computeWithoutTransmission (BlendComponents &components, sdw::Vec3 const &wsNormal, sdw::Vec3 const &wsPosition, sdw::Vec3 const &V, BackgroundModel &background, sdw::UInt envMapIndex, sdw::Vec3 &reflectedDiffuse, sdw::Vec3 &reflectedSpecular)
C3D_API void	computeWithoutTransmission (BlendComponents &components, sdw::Vec3 const &wsNormal, sdw::Vec3 const &wsPosition, sdw::Vec3 const &V, sdw::Float const &NdotV, BackgroundModel &background, sdw::UInt const &envMapIndex, ReflectionRefraction &output, DebugOutputCategory const &debugOutput)
C3D_API void	computeDiffuseBrdf (BlendComponents &components, BackgroundModel &background, sdw::Vec3 const &reflectedDiffuse, sdw::Vec3 const &wsNormal, sdw::Boolean const &hasEnvMap, sdw::UInt const &envMapIndex, shader::ReflectionRefraction &output, DebugOutputCategory const &debugOutput)
C3D_API sdw::Vec4	computeScreenSpace (CameraData const &cameraData, sdw::Vec3 const &viewPosition, sdw::Vec3 const &worldNormal, sdw::Vec2 const &texcoord, sdw::Vec4 const &ssrSettings, sdw::CombinedImage2DR32 const &depthMap, sdw::CombinedImage2DRgba32 const &normalMap, sdw::CombinedImage2DRgba32 const &colourMap, DebugOutputCategory const &debugOutput)
C3D_API sdw::RetVec4	computeScreenSpace (CameraData const &cameraData, sdw::Vec3 const &viewPosition, sdw::Vec3 const &worldNormal, sdw::Vec2 const &texcoord, sdw::Vec4 const &ssrSettings, sdw::CombinedImage2DRgba32 const &depthObjMap, sdw::CombinedImage2DRgba32 const &normalMap, sdw::CombinedImage2DRgba32 const &colourMap, DebugOutputCategory const &debugOutput)
C3D_API sdw::RetBoolean	traceScreenSpace (sdw::Vec3 csOrigin, sdw::Vec3 csDirection, sdw::Mat4 projectToPixelMatrix, sdw::CombinedImage2DR32 csZBuffer, sdw::Vec2 csZBufferSize, sdw::Float csZThickness, sdw::Boolean csZBufferIsHyperbolic, sdw::Vec3 clipInfo, sdw::Float nearPlaneZ, sdw::Float stride, sdw::Float jitterFraction, sdw::Float maxSteps, sdw::Float maxRayTraceDistance, sdw::Vec2 &hitPixel, sdw::Vec3 &csHitPoint)
Utils &	getUtils () const

Static Public Member Functions
static C3D_API sdw::RetVec3	computeIncident (sdw::Vec3 const &wsPosition, sdw::Vec3 const &wsCamera)
static C3D_API DerivVec3	computeIncident (DerivVec3 const &wsPosition, sdw::Vec3 const &wsCamera)
static C3D_API sdw::Vec3	getVolumeTransmissionRay (sdw::Vec3 const &wsNormal, sdw::Vec3 const &wsIncident, sdw::Float const &thickness, sdw::Float const &ior)
static C3D_API sdw::Vec3	applyVolumeAttenuation (sdw::Float const &transmissionDistance, sdw::Vec3 const &attenuationColor, sdw::Float const &attenuationDistance)
static C3D_API sdw::Float	applyIorToRoughness (sdw::Float const &roughness, sdw::Float const &ior)

Constructor & Destructor Documentation

ReflectionModel()

C3D_API castor3d::shader::ReflectionModel::ReflectionModel	(	sdw::ShaderWriter &	writer,
		Utils &	utils,
		uint32_t &	envMapBinding,
		uint32_t	envMapSet,
		bool	allowReflections,
		bool	allowRefraction,
		bool	allowIbl,
		bool	hasEnvMap = true )

Member Function Documentation

applyIorToRoughness()

static C3D_API sdw::Float castor3d::shader::ReflectionModel::applyIorToRoughness ( sdw::Float const & roughness, sdw::Float const & ior )

static

applyVolumeAttenuation()

static C3D_API sdw::Vec3 castor3d::shader::ReflectionModel::applyVolumeAttenuation ( sdw::Float const & transmissionDistance, sdw::Vec3 const & attenuationColor, sdw::Float const & attenuationDistance )

static

computeDiffuseBrdf()

C3D_API void castor3d::shader::ReflectionModel::computeDiffuseBrdf	(	BlendComponents &	components,
		BackgroundModel &	background,
		sdw::Vec3 const &	reflectedDiffuse,
		sdw::Vec3 const &	wsNormal,
		sdw::Boolean const &	hasEnvMap,
		sdw::UInt const &	envMapIndex,
		shader::ReflectionRefraction &	output,
		DebugOutputCategory const &	debugOutput )

computeIncident() [1/2]

static C3D_API DerivVec3 castor3d::shader::ReflectionModel::computeIncident ( DerivVec3 const & wsPosition, sdw::Vec3 const & wsCamera )

static

computeIncident() [2/2]

static C3D_API sdw::RetVec3 castor3d::shader::ReflectionModel::computeIncident ( sdw::Vec3 const & wsPosition, sdw::Vec3 const & wsCamera )

static

computeScreenSpace() [1/2]

C3D_API sdw::Vec4 castor3d::shader::ReflectionModel::computeScreenSpace	(	CameraData const &	cameraData,
		sdw::Vec3 const &	viewPosition,
		sdw::Vec3 const &	worldNormal,
		sdw::Vec2 const &	texcoord,
		sdw::Vec4 const &	ssrSettings,
		sdw::CombinedImage2DR32 const &	depthMap,
		sdw::CombinedImage2DRgba32 const &	normalMap,
		sdw::CombinedImage2DRgba32 const &	colourMap,
		DebugOutputCategory const &	debugOutput )

computeScreenSpace() [2/2]

C3D_API sdw::RetVec4 castor3d::shader::ReflectionModel::computeScreenSpace	(	CameraData const &	cameraData,
		sdw::Vec3 const &	viewPosition,
		sdw::Vec3 const &	worldNormal,
		sdw::Vec2 const &	texcoord,
		sdw::Vec4 const &	ssrSettings,
		sdw::CombinedImage2DRgba32 const &	depthObjMap,
		sdw::CombinedImage2DRgba32 const &	normalMap,
		sdw::CombinedImage2DRgba32 const &	colourMap,
		DebugOutputCategory const &	debugOutput )

computeWithoutTransmission() [1/3]

C3D_API void castor3d::shader::ReflectionModel::computeWithoutTransmission	(	BlendComponents &	components,
		LightSurface const &	lightSurface,
		BackgroundModel &	background,
		sdw::UInt const &	envMapIndex,
		sdw::Vec3 &	reflectedDiffuse,
		sdw::Vec3 &	reflectedSpecular )

computeWithoutTransmission() [2/3]

C3D_API sdw::Boolean castor3d::shader::ReflectionModel::computeWithoutTransmission	(	BlendComponents &	components,
		sdw::Vec3 const &	wsNormal,
		sdw::Vec3 const &	wsPosition,
		sdw::Vec3 const &	V,
		BackgroundModel &	background,
		sdw::UInt	envMapIndex,
		sdw::Vec3 &	reflectedDiffuse,
		sdw::Vec3 &	reflectedSpecular )

computeWithoutTransmission() [3/3]

C3D_API void castor3d::shader::ReflectionModel::computeWithoutTransmission	(	BlendComponents &	components,
		sdw::Vec3 const &	wsNormal,
		sdw::Vec3 const &	wsPosition,
		sdw::Vec3 const &	V,
		sdw::Float const &	NdotV,
		BackgroundModel &	background,
		sdw::UInt const &	envMapIndex,
		ReflectionRefraction &	output,
		DebugOutputCategory const &	debugOutput )

computeWithTransmission() [1/2]

C3D_API void castor3d::shader::ReflectionModel::computeWithTransmission	(	BlendComponents &	components,
		LightSurface const &	lightSurface,
		BackgroundModel &	background,
		sdw::CombinedImage2DRgba32 const &	mippedScene,
		CameraData const &	camera,
		sdw::Vec2 const &	sceneUv,
		sdw::UInt const &	envMapIndex,
		ReflectionRefraction &	output,
		DebugOutputCategory const &	debugOutput )

computeWithTransmission() [2/2]

C3D_API void castor3d::shader::ReflectionModel::computeWithTransmission	(	BlendComponents &	components,
		sdw::Vec3 const &	wsNormal,
		sdw::Vec3 const &	wsPosition,
		sdw::Vec3 const &	V,
		sdw::Float const &	NdotV,
		BackgroundModel &	background,
		sdw::CombinedImage2DRgba32 const &	mippedScene,
		CameraData const &	camera,
		sdw::Vec2 const &	sceneUv,
		sdw::UInt const &	envMapIndex,
		ReflectionRefraction &	output,
		DebugOutputCategory const &	debugOutput )

getUtils()

Utils & castor3d::shader::ReflectionModel::getUtils ( ) const

inline

getVolumeTransmissionRay()

static C3D_API sdw::Vec3 castor3d::shader::ReflectionModel::getVolumeTransmissionRay ( sdw::Vec3 const & wsNormal, sdw::Vec3 const & wsIncident, sdw::Float const & thickness, sdw::Float const & ior )

static

traceScreenSpace()

C3D_API sdw::RetBoolean castor3d::shader::ReflectionModel::traceScreenSpace	(	sdw::Vec3	csOrigin,
		sdw::Vec3	csDirection,
		sdw::Mat4	projectToPixelMatrix,
		sdw::CombinedImage2DR32	csZBuffer,
		sdw::Vec2	csZBufferSize,
		sdw::Float	csZThickness,
		sdw::Boolean	csZBufferIsHyperbolic,
		sdw::Vec3	clipInfo,
		sdw::Float	nearPlaneZ,
		sdw::Float	stride,
		sdw::Float	jitterFraction,
		sdw::Float	maxSteps,
		sdw::Float	maxRayTraceDistance,
		sdw::Vec2 &	hitPixel,
		sdw::Vec3 &	csHitPoint )

Parameters

csOrigin	Camera-space ray origin, which must be within the view volume and must have z < -0.01 and project within the valid screen rectangle.
csDirection	Unit length camera-space ray direction.
projectToPixelMatrix	A projection matrix that maps to pixel coordinates (not [-1, +1] normalized device coordinates).
csZBuffer	The depth or camera-space Z buffer, depending on the value of csZBufferIsHyperbolic.
csZBufferSize	Dimensions of csZBuffer.
csZThickness	Camera space thickness to ascribe to each pixel in the depth buffer.
csZBufferIsHyperbolic	True if csZBuffer is an OpenGL depth buffer, false (faster) if csZBuffer contains (negative) "linear" camera space z values. Const so that the compiler can evaluate the branch based on it at compile time.
clipInfo	See G3D::Camera documentation.
nearPlaneZ	Negative number.
stride	Step in horizontal or vertical pixels between samples. This is a float because integer math is slow on GPUs, but should be set to an integer >= 1.
jitterFraction	Number between 0 and 1 for how far to bump the ray in stride units to conceal banding artifacts.
maxSteps	Maximum number of iterations. Higher gives better images but may be slow.
maxRayTraceDistance	Maximum camera-space distance to trace before returning a miss.
hitPixel	Pixel coordinates of the first intersection with the scene.
csHitPoint	Camera space location of the ray hit.

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

• Castor3D/Shader/Shaders/GlslReflection.hpp