Bilateral fragment shader. More...

Public Member Functions
float	computeWeight (vec3 n, float z, vec3 nNeigh, float zNeigh)

vec4	weightedColor (vec2 uvNeigh, vec3 n, float z, float blurWeight, inout float minWeight, inout float sum)

void	main ()

Public Attributes
in vec2	uv
	UV coordinates.

uniform uniform vec2	invDstSize
	Inverse of the target resolution.

uniform vec2	projParams
	Projection depth-related coefficients.

uniform int	axis
	Dimension to blur along.

out vec4	fragColor
	Blurred color.

const int	radius = 4
	Blur radius.

const int	shift = 2
	Step between samples (introduce dithering artifacts).

const float	weights [5] = float[](0.153170, 0.144893, 0.122649, 0.092902, 0.062970)
	Gaussian weights.

Detailed Description

Bilateral fragment shader.

Member Function Documentation

float GPUShaders::Frag::Bilateral::computeWeight	(	vec3	n,
		float	z,
		vec3	nNeigh,
		float	zNeigh
	)

inline

Compute bilateral weight based on depth and normal differences.

Parameters

n	normal at the center point
z	depth at the center point (in view space)
nNeigh	normal at the neighbor
zNeigh	depth at the neighbor (in view space)

void GPUShaders::Frag::Bilateral::main ( )

inline

Apply an approximate bilateral filter combining a separable gaussian blur and a geometry-guided weight.

vec4 GPUShaders::Frag::Bilateral::weightedColor	(	vec2	uvNeigh,
		vec3	n,
		float	z,
		float	blurWeight,
		inout float	minWeight,
		inout float	sum
	)

inline

Compute the bilateral weight of a neighboring texel and apply it.

Parameters

uvNeigh	the texel UV coordinates
n	the reference texel surface normal
z	the reference texel surface depth (view space)
blurWeight	gaussian blur weight
minWeight	lowest weight uncountered yet (for monotonous enforcement)
sum	normalization sum

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