GPUShaders::Frag::Cubemap_convo Class Reference

Cubemap convo fragment shader. More...

Public Member Functions
vec3	convo (vec3 r, float roughness)
void	main ()

Public Attributes
in vec3	pos
	World position.
uniform uniform float	mipmapRoughness
	The roughness to use for the convolution lobe.
uniform float	clampMax
	Clamp input HDR values to avoid artefacts.
uniform int	samplesCount
	Number of samples to take, higher count helps avoiding artifacts in bright areas.
out vec3	fragColor
	Color.

Detailed Description

Cubemap convo fragment shader.

See also

GPUShaders::Common::Common_pbr, GPUShaders::Common::Utils

Member Function Documentation

convo()

vec3 GPUShaders::Frag::Cubemap_convo::convo ( vec3  r, float  roughness  )

inline

Perform convolution with the BRDF specular lobe, evaluated in a given direction.

Parameters

r	the reflection direction
roughness	the roughness to evalute the BRDF at

Returns

the result of the convolution

main()

void GPUShaders::Frag::Cubemap_convo::main ( )

inline

Perform convolution of the cubemap with the BRDF lobe at a given roughness, using a high number of samples and importance sampling. This is done in the direction in world space of the current fragment.

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

• resources/pbrdemo/shaders/cubemap_convo.frag