VolumeViz/vvizfnc_frag.h File Reference

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Functions
vec4	VVizOverOperator (vec4 underCol, vec4 overCol)
float	VVizGetLuminance (VVIZ_DATATYPE data)
vec3	VVizGetNearestCoord (in VVizVoxelInfo voxelInfo)
vec3	VVizGetNearestCoord (in VVizDataSetId dataset, in VVizVoxelInfo voxelInfo)
vec3	VVizComputePreintegratedGradient (vec3 tcoord0, vec3 tcoord1)
vec3	VVizComputePreintegratedGradient (VVizDataSetId tex, vec3 tcoord0, vec3 tcoord1)
vec3	VVizComputePreintegratedGradient (VVizDataSetId tex, inout VVizVoxelInfo voxelInfoFront, in VVizVoxelInfo voxelInfoBack)
vec3	VVizComputeNormal (vec3 view, vec3 grad)
vec3	VVizComputeNormal (vec3 view, vec3 grad, float gradNorm)
vec3	VVizComputeNormal (vec3 tcoordVirt)
vec3	VVizComputeNormal (in VVizDataSetId dataset, vec3 tcoordVirt)
vec4	VVizComputeIsoMaterial (VVizDataSetId tex, in VVizVoxelInfo voxelInfoFront, in VVizVoxelInfo voxelInfoBack, int maskId)
vec4	VVizComputePreIntegrated (VVIZ_DATATYPE sf, VVIZ_DATATYPE sb)
vec4	VVizComputePreIntegrated (VVIZ_DATATYPE sf, VVIZ_DATATYPE sb, int mask)
vec4	VVizComputePreIntegrated (inout VVizVoxelInfo voxelInfoFront, in VVizVoxelInfo voxelInfoBack, int mask)
vec4	VVizComputeVolumeRendering (VVIZ_DATATYPE sf)
vec4	VVizComputeVolumeRendering (inout VVizVoxelInfo voxelInfoFront, int mask)
vec4	VVizComputeVolumeRendering (VVIZ_DATATYPE sf, int tfId)
vec2	VVizComputeDiffuseAndSpecularCoeffs (vec3 normal, float gradLength, float threshold, vec3 lightVec, vec3 halfVec, float shininess)
vec3	VVizApplySurfaceScalarInternal (vec3 baseColor, vec3 lightedColor, float gradLength)
vec3	VVizApplySurfaceScalar (vec3 baseColor, vec3 lightedColor, float gradLength)
vec4	VVizComputeVolumeRenderingLighting (in vec4 col, in vec3 normal, in float gradLength)
vec4	VVizComputeVolumeRenderingLighting (in VVizDataSetId dataset, in vec4 col, in vec3 normal, in float gradLength)
vec4	VVizComputePreintegratedLighting (in vec4 col, in vec3 normal, in float gradLength)
vec4	VVizComputePreintegratedLighting (in VVizDataSetId dataset, in vec4 col, in vec3 normal, in float gradLength)
vec3	VVizComputeViewVec ()
vec3	VVizComputeViewVec (in VVizDataSetId dataset)
bool	VVizIsOutsideTexture (in vec3 tcoord)
bool	VVizIsOutsideVolume (in vec3 tcoord)
bool	VVizIsOutsideOrOnVolumeBorder (in vec3 tcoord)
bool	VVizIsOutsideOrOnVolumeBorder (in VVizDataSetId dataset, in vec3 tcoord)
VVIZ_DATATYPE	VVizGetDataPhysicalLod (sampler3D tex, vec3 tcoord, float lod)
VVIZ_DATATYPE	VVizGetDataPhysicalLod (sampler2D tex, vec2 tcoord, float lod)
VVIZ_DATATYPE	VVizGetDataPhysicalLod (VVizDataSetId dataSet, vec3 tcoord, float lod)
float	VVizGetProjectedDepth (in vec3 tcoord)
float	VVizGetProjectedDepth (in VVizDataSetId dataset, in vec3 tcoord)
vec2	VVizGetScreenCoord ()
bool	VVizIsTransparent (in float alphaValue)
bool	VVizIsOpaque (in float alphaValue)
vec4	VVizTextureLod (sampler3D tex, vec3 tcoord, float mipLevel)
vec4	VVizTextureLod (sampler2D tex, vec2 tcoord, float mipLevel)
vec4	VVizTextureLod (sampler2D tex, vec3 tcoord, float mipLevel)
vec4	VVizGetColor (VVizDataSetId dataset, in vec3 viewVec, in vec3 rayDir, inout VVizVoxelInfo voxel, in VVizVoxelInfo previousVoxel)
void	VVizComputeGradientCommon (in vec3 tcoordFront, in vec3 tcoordBack, out vec3 gradient, out vec3 normal)
void	VVizComputeGradientCommon (VVizDataSetId dataset, in vec3 tcoordFront, in vec3 tcoordBack, out vec3 gradient, out vec3 normal)

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Function Documentation

vec3 VVizApplySurfaceScalar	(	vec3	baseColor,
		vec3	lightedColor,
		float	gradLength
	)

vec3 VVizApplySurfaceScalarInternal	(	vec3	baseColor,
		vec3	lightedColor,
		float	gradLength
	)

vec2 VVizComputeDiffuseAndSpecularCoeffs	(	vec3	normal,
		float	gradLength,
		float	threshold,
		vec3	lightVec,
		vec3	halfVec,
		float	shininess
	)

vec3 VVizComputeNormal	(	vec3	view,
		vec3	grad,
		float	gradNorm
	)

vec4 VVizComputePreIntegrated	(	inout VVizVoxelInfo	voxelInfoFront,
		in VVizVoxelInfo	voxelInfoBack,
		int	mask
	)

vec4 VVizComputePreIntegrated	(	VVIZ_DATATYPE	sf,
		VVIZ_DATATYPE	sb,
		int	mask
	)

vec3 VVizComputePreintegratedGradient	(	VVizDataSetId	tex,
		inout VVizVoxelInfo	voxelInfoFront,
		in VVizVoxelInfo	voxelInfoBack
	)

vec3 VVizComputePreintegratedGradient	(	VVizDataSetId	tex,
		vec3	tcoord0,
		vec3	tcoord1
	)

vec4 VVizComputeVolumeRendering	(	VVIZ_DATATYPE	sf,
		int	tfId
	)

vec4 VVizComputeVolumeRendering	(	inout VVizVoxelInfo	voxelInfoFront,
		int	mask
	)

vec4 VVizGetColor	(	VVizDataSetId	dataset,
		in vec3	viewVec,
		in vec3	rayDir,
		inout VVizVoxelInfo	voxel,
		in VVizVoxelInfo	previousVoxel
	)

VVIZ_DATATYPE VVizGetDataPhysicalLod	(	VVizDataSetId	dataSet,
		vec3	tcoord,
		float	lod
	)

Sample dataset without converting from virtual to physical texture coords.

VVIZ_DATATYPE VVizGetDataPhysicalLod	(	sampler2D	tex,
		vec2	tcoord,
		float	lod
	)

Sample texture without converting from virtual to physical texture coords.

VVIZ_DATATYPE VVizGetDataPhysicalLod	(	sampler3D	tex,
		vec3	tcoord,
		float	lod
	)

Sample texture without converting from virtual to physical texture coords.

float VVizGetProjectedDepth	(	in VVizDataSetId	dataset,
		in vec3	tcoord
	)

Return depth in screen space (range [0, 1].

0 is nearClip, 1 is farClip) of the specified virtual space coordinate.

float VVizGetProjectedDepth

(

in vec3

tcoord

)

Return depth in screen space (range [0, 1].

0 is nearClip, 1 is farClip) of the specified virtual space coordinate.

This method is for the default DataSet. For a specific dataset, see VVizGetProjectedDepth(in VVizDataSetId, in vec3)

vec2 VVizGetScreenCoord

(

)

Return screen coordinates (range [0, 1]) of current fragment center.

Note that if using lowResScale the center of the corresponding FULL resolution fragment is returned. This can be useful when using screen space effects (like depth peeling) to retrieve the value of the current fragment.

bool VVizIsOpaque

(

in float

alphaValue

)

Return true if alphaValue is considered as fully opaque.

bool VVizIsOutsideOrOnVolumeBorder	(	in VVizDataSetId	dataset,
		in vec3	tcoord
	)

True if tcoord is on the volume's boundary voxel or out of the volume.

bool VVizIsOutsideOrOnVolumeBorder

(

in vec3

tcoord

)

True if tcoord is on the volume's boundary voxel or out of the volume.

This method is for the default DataSet. For a specific dataset, see VVizIsOutsideOrOnVolumeBorder(in VVizDataSetId, in vec3)

bool VVizIsOutsideTexture

(

in vec3

tcoord

)

bool VVizIsOutsideVolume

(

in vec3

tcoord

)

bool VVizIsTransparent

(

in float

alphaValue

)

Return true if alphaValue is considered as fully transparent.

vec4 VVizTextureLod	(	sampler2D	tex,
		vec3	tcoord,
		float	mipLevel
	)

Helper function to fetch a texel at a specific LOD.

vec4 VVizTextureLod	(	sampler2D	tex,
		vec2	tcoord,
		float	mipLevel
	)

Helper function to fetch a texel at a specific LOD.

vec4 VVizTextureLod	(	sampler3D	tex,
		vec3	tcoord,
		float	mipLevel
	)

Helper function to fetch a texel at a specific LOD.