glsl Namespace Reference

Classes
class	Abuffergeometrygl
class	Axisalignedcutplaneboundingbox
class	Axisalignedcutplaneslice
class	Background
class	Bilateralblur
class	Bloomblur
class	Bloomcompose
class	Bloomhighpass
class	Brightnesscontrast
struct	CameraParameters
class	Capnearclipping
class	Composite
class	Cubeglyph
class	Depthdarkening
class	Depthlinearize
class	Displaytex
class	Edgedarken
class	Fog
class	Fontrendering_freetype
class	Fullscreenquad
class	Fxaa
class	Geometrycustompicking
struct	GeometryParameters
class	Geometryrendering
class	Hbao
class	Hbao_blur
class	Hbao_deinterleave
class	Hbao_reinterleave
struct	HBAOData
class	Heightfield
class	Huesaturationluminance
class	Imagegradient
class	Imageopacity
struct	ImageParameters
class	Imagesharpen
class	Img_binary
class	Img_channel_combine
class	Img_channel_select
class	Img_color
class	Img_convert_cef
class	Img_convolution
class	Img_copy
class	Img_findedges
class	Img_gamma
class	Img_graysc
class	Img_highpass
class	Img_identity
class	Img_invert
class	Img_jacobian
class	Img_mapping
class	Img_mix
class	Img_noise
class	Img_normalize
class	Img_overlay
class	Img_resample
class	Img_texturequad
class	Isoraycasting
struct	IsovalueParameters
class	Labelui
class	Legend
class	Lic2d
class	Lic3d
class	Lightingraycasting
struct	LightParameters
class	Lightpropagation
class	Lightvolumeblend
class	Linerenderer
class	Lorenzsystem
class	Mesh2drendering
class	Meshentryexit
class	Meshrendering
class	Minimal
class	Multichannelraycaster
class	Pcp_lines
class	Persistencediagram
class	Persistencediagramlines
class	Picking
struct	PlaneParameters
class	Pointrenderer
class	Raycasting
struct	RaycastingParameters
class	Rendertexturequad
class	Renderui
class	Rgbl
class	Scatterplot
class	Simpleraycasting
class	Sphereglyph
class	Splitter
class	Standard
struct	StipplingParameters
class	Streamlinesgl
class	Textrenderer
class	Texturedgeometryrendering
class	Tmip
class	Tonemapping
class	Tuberendering
class	Vector2dcurl
class	Vector2ddivergence
class	Vector2dmagnitude
class	Vector3dcurl
class	Vector3ddivergence
class	Vectorfieldgenerator2d
class	Vectorfieldgenerator3d
class	Vectorfieldgenerator4d
class	Vectormagnitudeprocessor
class	Viewnormal
class	Volume_binary
class	Volume_difference
class	Volume_gpu
class	Volume_gradient
class	Volume_laplacian
class	Volume_lowpass
class	Volume_mapping
class	Volumegradientmagnitude
struct	VolumeIndicatorParameters
class	Volumemerger
struct	VolumeParameters
class	Volumeslice
class	Widgetrenderer
class	Widgettexture

Functions
vec4	applyTF (sampler2D transferFunction, vec4 voxel)
vec4	applyTF (sampler2D transferFunction, vec4 voxel, int channel)
vec4	applyTF (sampler2D transferFunction, float intensity)
vec4	compositeDVR (in vec4 curResult, in vec4 color, in float t, inout float tDepth, in float tIncr)
vec4	compositeMIP (in vec4 curResult, in vec4 color, in float t, inout float tDepth)
vec4	compositeFHP (in vec4 curResult, in vec4 color, in vec3 samplePos, in float t, inout float tDepth)
vec4	compositeFHN (in vec4 curResult, in vec4 color, in vec3 gradient, in float t, inout float tDepth)
vec4	compositeFHN_VS (in vec4 curResult, in vec4 color, in vec3 gradient, in float t, in CameraParameters camera, inout float tDepth)
vec4	compositeFHD (in vec4 curResult, in vec4 color, in float t, inout float tDepth)
vec4	compositeISO (in vec4 curResult, in vec4 color, in float intensity, in float t, inout float tDepth, in float tIncr, in float isoValue)
vec4	compositeISON (in vec4 curResult, in vec4 color, in float intensity, in vec3 gradient, in float t, inout float tDepth, in float isoValue)
float	convertScreenToEye (CameraParameters camera, float depthScreen)
float	convertEyeToScreen (CameraParameters camera, float depthEye)
float	calculateDepthValue (CameraParameters camera, float t, float entryDepthScreen, float exitDepthScreen)
float	calculateTValueFromDepthValue (CameraParameters camera, float depth, float entryDepthScreen, float exitDepthScreen)
float	convertDepthViewToClip (CameraParameters camera, float z)
float	convertDepthClipToView (CameraParameters camera, float z)
float	convertDepthScreenToView (CameraParameters camera, float z)
float	convertDepthViewToScreen (CameraParameters camera, float z)
vec3	gradientForwardDiff (vec4 intensity, sampler3D volume, VolumeParameters volumeParams, vec3 samplePos, int channel)
vec3	gradientCentralDiff (vec4 intensity, sampler3D volume, VolumeParameters volumeParams, vec3 samplePos, int channel)
vec3	gradientBackwardDiff (vec4 intensity, sampler3D volume, VolumeParameters volumeParams, vec3 samplePos, int channel)
vec3	gradientCentralDiffH (vec4 intensity, sampler3D volume, VolumeParameters volumeParams, vec3 samplePos, int channel)
mat4x3	gradientAllForwardDiff (vec4 intensity, sampler3D volume, VolumeParameters volumeParams, vec3 samplePos)
mat4x3	gradientAllCentralDiff (vec4 intensity, sampler3D volume, VolumeParameters volumeParams, vec3 samplePos)
mat4x3	gradientAllBackwardDiff (vec4 intensity, sampler3D volume, VolumeParameters volumeParams, vec3 samplePos)
mat4x3	gradientAllCentralDiffH (vec4 intensity, sampler3D volume, VolumeParameters volumeParams, vec3 samplePos)
vec3	gradientPrecomputedXYZ (vec4 intensity, VolumeParameters volumeParams)
vec3	gradientPrecomputedYZW (vec4 intensity, VolumeParameters volumeParams)
bool	rayPlaneIntersection (in PlaneParameters plane, in vec3 point, in vec3 rayDir, inout float t0, in float t1)
vec4	drawIsosurface (in vec4 curResult, in float isovalue, in vec4 isosurfaceColor, in vec4 voxel, in vec4 previousVoxel, in sampler3D volume, in VolumeParameters volumeParameters, in int channel, in sampler2D transferFunction, in CameraParameters camera, in LightParameters lighting, in vec3 rayPosition, in vec3 rayDirection, in vec3 toCameraDir, in float t, in float raySegmentLen, inout float tIncr, inout float tDepth)
vec4	drawIsosurfaces (in vec4 curResult, in IsovalueParameters isoparams, in vec4 voxel, in vec4 previousVoxel, in sampler3D volume, in VolumeParameters volumeParameters, in int channel, in sampler2D transferFunction, in CameraParameters camera, in LightParameters lighting, in vec3 rayPosition, in vec3 rayDirection, in vec3 toCameraDir, in float t, inout float tIncr, inout float tDepth)
uint	reverseByte (uint b)
vec3	pickingIndexToColor (uint id)
uint	pickingColorToIndex (vec3 color)
vec4	drawPlanes (in vec4 oldres, in vec3 pos, in vec3 dir, in float inc, PlaneParameters plane, in float t, inout float tDepth)
vec4	drawPlanes (in vec4 oldres, in vec3 pos, in vec3 dir, in float inc, PlaneParameters plane1, PlaneParameters plane2, in float t, inout float tDepth)
vec4	drawPlanes (in vec4 oldres, in vec3 pos, in vec3 dir, in float inc, PlaneParameters plane1, PlaneParameters plane2, PlaneParameters plane3, in float t, inout float tDepth)
vec4	drawBackground (in vec4 oldres, in float depth, in float inc, in vec4 color, in float bgDepth, inout float tDepth)
vec4	textureLookup2Dnormalized (sampler2D tex, ImageParameters textureParams, vec2 samplePos)
vec4	textureLookup2Dscreen (sampler2D tex, ImageParameters textureParams, vec2 samplePos)
vec4	getVoxel (sampler3D volume, VolumeParameters volumeParams, vec3 samplePos)
vec4	getNormalizedVoxel (sampler3D volume, VolumeParameters volumeParams, vec3 samplePos)
float	getNormalizedVoxelChannel (sampler3D volume, VolumeParameters volumeParams, vec3 samplePos, int channel)
vec4	getSignNormalizedVoxel (sampler3D volume, VolumeParameters volumeParams, vec3 samplePos)
vec4	getVoxel (sampler3D volume, VolumeParameters volumeParams, ivec3 samplePos)
vec4	getNormalizedVoxel (sampler3D volume, VolumeParameters volumeParams, ivec3 samplePos)
vec4	getSignNormalizedVoxel (sampler3D volume, VolumeParameters volumeParams, ivec3 samplePos)
vec3	shadeDiffuseCalculation (LightParameters light_, vec3 materialDiffuseColor, vec3 normal, vec3 toLightDir)
vec3	shadeSpecularBlinnPhongCalculation (LightParameters light_, vec3 materialSpecularColor, vec3 normal, vec3 toLightDir, vec3 toCameraDir)
vec3	shadeSpecularPhongCalculation (LightParameters light_, vec3 materialSpecularColor, vec3 normal, vec3 toLightDir, vec3 toCameraDir)
vec3	shadeAmbient (LightParameters light_, vec3 materialAmbientColor)
vec3	shadeDiffuse (LightParameters light_, vec3 materialDiffuseColor, vec3 position, vec3 normal)
vec3	shadeSpecular (LightParameters light_, vec3 materialSpecularColor, vec3 position, vec3 normal, vec3 toCameraDir)
vec3	shadeBlinnPhong (LightParameters light_, vec3 materialAmbientColor, vec3 materialDiffuseColor, vec3 materialSpecularColor, vec3 position, vec3 normal, vec3 toCameraDir)
vec3	shadePhong (LightParameters light_, vec3 materialAmbientColor, vec3 materialDiffuseColor, vec3 materialSpecularColor, vec3 position, vec3 normal, vec3 toCameraDir)
vec3	right (in CameraParameters camera)
vec3	up (in CameraParameters camera)
vec3	direction (in CameraParameters camera)
	layout (binding=0, offset=0) uniform atomic_uint atomicPageCounter
bool	semaphoreAcquire (ivec2 coords)
void	semaphoreRelease (ivec2 coords)
bool	getSemaphore (ivec2 coords)
void	setSemaphore (ivec2 coords, bool val)
uint	getPixelCurrentPage (ivec2 coords)
void	setPixelCurrentPage (ivec2 coords, uint newpageidx)
uint	getPixelFragCounter (ivec2 coords)
void	setPixelFragCounter (ivec2 coords, uint val)
uint	pixelFragCounterAtomicAdd (ivec2 coords, uint val)
uint	sharedPoolGetLink (uint pageNum)
void	sharedPoolSetLink (uint pageIdx, uint pointer)
void	sharedPool_GetRGBAValue (uint index, out u8vec4 val)
void	sharedPool_GetExtValue (uint index, out float val)
void	sharedPool_SetRGBAValue (uint index, u8vec4 val)
void	sharedPool_SetExtValue (uint index, float val)
void	sharedPoolSetValue (uint index, u8vec4 val1, float val2)
void	sharedPoolGetValue (uint index, out u8vec4 val1, out float val2)
void	setSharedPageCounter (uint val)
uint	sharedPageCounterAtomicAdd ()
uint	getSharedPageCounterAtomicValue ()
void	main ()
void	resetABuffer ()
void	bubbleSort (int array_size)
vec2	getPosWithSpacing (vec2 inPos)
vec2	getPixelSpacing ()
vec2	getPixelCoordsWithSpacing (vec2 inPos)
vec2	getGLPositionFromPixel (vec2 pos)
vec3	hue2rgb (float hue)
vec3	rgb2hcv (vec3 rgb)
vec3	hsv2rgb (vec3 hsv)
vec3	hsl2rgb (vec3 hsl)
vec3	hcy2rgb (vec3 hcy)
vec3	hcl2rgb (vec3 hcl)
vec3	rgb2hsv (vec3 rgb)
vec3	rgb2hsl (vec3 rgb)
vec3	rgb2hcy (vec3 rgb)
vec3	rgb2hcl (vec3 rgb)
vec3	computeFog (in vec3 pixelColor, in float distance, in vec3 fogColor, in float density)
vec3	computeFogScatter (in vec3 pixelColor, in float distance, in vec3 fogColor, in float scatter)
vec3	computeFogInOutScatter (in vec3 pixelColor, in float distance, in vec3 fogColor, in vec3 extinction, in vec3 scatter)
vec3	sampleVelocity (vec3 worldPos)
vec3	advectEuler (vec3 worldPos, float stepSize)
vec3	advectRK4 (vec3 worldPos, float stepSize)

Variables
uniform int	abufferSharedPoolSize
coherent uniform uint *	d_abufferPageIdx
coherent uniform uint *	d_abufferFragCount
coherent uniform uint *	d_semaphore
coherent uniform u8vec4 *	d_shared_RGBA_DataPageList
coherent uniform float *	d_shared_Ext_DataPageList
coherent uniform uint *	d_sharedLinkList
coherent uniform uint *	d_curSharedPage
uniform bool	isInputImageGiven
uniform ImageParameters	inputimageParameters
uniform sampler2D	inputimageColor
uniform sampler2D	inputimageDepth
u8vec4	rgba_Array [ABUFFER_SIZE *ABUFFER_DATA_PER_NODE]
float	ext_Array [ABUFFER_SIZE *ABUFFER_DATA_PER_NODE]
uniform ivec2	dims
uniform vec4	spacing = vec4(0)
uniform vec4	margins

Detailed Description

#version 330 layout(location = 0) out vec4 FragData0; #include "../../opengl/glsl/utils/structs.glsl" #include "../../opengl/glsl/utils/depth.glsl"

Function Documentation

advectEuler()

vec3 glsl::advectEuler	(	vec3	worldPos,
		float	stepSize
	)

Advect point p at worldPos one step using Euler integration Caller needs to implement vec3 sampleVelocity(vec3 worldPos) @ see streamparticles.comp

advectRK4()

vec3 glsl::advectRK4	(	vec3	worldPos,
		float	stepSize
	)

Advect point p at worldPos one step usig 4th order Runge-Kutta integration Caller needs to implement vec3 sampleVelocity(vec3 worldPos) @ see streamparticles.comp

applyTF()

vec4 glsl::applyTF	(	sampler2D	transferFunction,
		vec4	voxel
	)

Remarks

GLSL-Shader

convertScreenToEye()

float glsl::convertScreenToEye	(	CameraParameters	camera,
		float	depthScreen
	)

Remarks

GLSL-Shader

drawIsosurface()

vec4 glsl::drawIsosurface	(	in vec4	curResult,
		in float	isovalue,
		in vec4	isosurfaceColor,
		in vec4	voxel,
		in vec4	previousVoxel,
		in sampler3D	volume,
		in VolumeParameters	volumeParameters,
		in int	channel,
		in sampler2D	transferFunction,
		in CameraParameters	camera,
		in LightParameters	lighting,
		in vec3	rayPosition,
		in vec3	rayDirection,
		in vec3	toCameraDir,
		in float	t,
		in float	raySegmentLen,
		inout float	tIncr,
		inout float	tDepth
	)

Draws an isosurface if the given isovalue is found along the ray in between the current and the previous volume sample. On return, tIncr refers to the distance between the last valid isosurface and the current sampling position. That is if no isosurface was found, tIncr is not modified.

Parameters

curResult	color accumulated so far during raycasting
isovalue	isovalue of isosurface to be drawn
isosurfaceColor	color of the isosurface used for blending
voxel	scalar values of current sampling position
previousVoxel	scalar values of previous sample

Returns

in case of an isosurface, curResult is blended with the color of the isosurface. Otherwise curResult is returned

drawPlanes()

vec4 glsl::drawPlanes	(	in vec4	oldres,
		in vec3	pos,
		in vec3	dir,
		in float	inc,
		PlaneParameters	plane,
		in float	t,
		inout float	tDepth
	)

Remarks

GLSL-Shader

getPixelCoordsWithSpacing()

vec2 glsl::getPixelCoordsWithSpacing

(

vec2

inPos

)

maps (0,0) -> (bottom ,left) (1,1) -> (w - top , h - right)

Parameters

inPos

2d-position between zero and one where (0,0) is the lower left corner of the image and (1,1) is the upper right corner, both including/excluding including margins

Returns

the pixel coordinate where (0,0) is the bottom left and (w,h) is top right

getPosWithSpacing()

vec2 glsl::getPosWithSpacing

(

vec2

inPos

)

Convert a normalized position [0 1] into screen coordinates [-1 1] considering canvas dimensions and optional spacing

getVoxel()

vec4 glsl::getVoxel	(	sampler3D	volume,
		VolumeParameters	volumeParams,
		vec3	samplePos
	)

Remarks

GLSL-Shader

gradientForwardDiff()

vec3 glsl::gradientForwardDiff	(	vec4	intensity,
		sampler3D	volume,
		VolumeParameters	volumeParams,
		vec3	samplePos,
		int	channel
	)

Remarks

GLSL-Shader

hue2rgb()

vec3 glsl::hue2rgb

(

float

hue

)

Remarks

GLSL-Shader

main()

void glsl::main

(

)

Remarks

GLSL-Shader

rayPlaneIntersection()

bool glsl::rayPlaneIntersection	(	in PlaneParameters	plane,
		in vec3	point,
		in vec3	rayDir,
		inout float	t0,
		in float	t1
	)

Remarks

GLSL-Shader

reverseByte()

uint glsl::reverseByte

(

uint

b

)

Remarks

GLSL-Shader

sampleVelocity()

vec3 glsl::sampleVelocity

(

vec3

worldPos

)

Remarks

GLSL-Shader

shadeDiffuseCalculation()

vec3 glsl::shadeDiffuseCalculation	(	LightParameters	light_,
		vec3	materialDiffuseColor,
		vec3	normal,
		vec3	toLightDir
	)

Remarks

GLSL-Shader

textureLookup2Dnormalized()

vec4 glsl::textureLookup2Dnormalized	(	sampler2D	tex,
		ImageParameters	textureParams,
		vec2	samplePos
	)

Remarks

GLSL-Shader

Variable Documentation

abufferSharedPoolSize

uniform int glsl::abufferSharedPoolSize

Remarks

GLSL-Shader

dims

uniform ivec2 glsl::dims

Remarks

GLSL-Shader

rgba_Array

u8vec4 glsl::rgba_Array[ABUFFER_SIZE *ABUFFER_DATA_PER_NODE]

Remarks

GLSL-Shader