glsl::DepthOfField_blur_pix Class Reference

Computes the near field blur. More...

Public Member Functions
bool	inNearField (float radiusPixels)
void	main ()
float	square (float x)

Public Attributes
uniform sampler2D	blurSourceBuffer
	Source image in RGB, normalized CoC in A. More...
const int2	direction = int2(0, 1)
uniform float	fieldOfView
uniform float	invNearBlurRadiusPixels
uniform float	lowResolutionFactor
uniform int	maxCoCRadiusPixels
	Maximum blur radius for any point in the scene, in pixels. More...
uniform int	nearBlurRadiusPixels
uniform sampler2D	nearSourceBuffer
	For the second pass, the output of the previous near-field blur pass. More...

Detailed Description

Computes the near field blur.

This is included by both the horizontal (first) and vertical (second) passes.

The shader produces two outputs:

blurResult

A buffer that is the scene blurred with a spatially varying kernel kernel that attempts to make the point-spread function at each pixel equal to its circle of confusion radius.

blurResult.rgb = color blurResult.a = normalized coc radius

nearResult

A buffer that contains only near field, blurred with premultiplied alpha. The point spread function is a fixed RADIUS in this region.

nearResult.rgb = coverage * color nearResult.a = coverage

Member Function Documentation

inNearField()

bool glsl::DepthOfField_blur_pix::inNearField ( float  radiusPixels )

inline

main()

void glsl::DepthOfField_blur_pix::main ( void  )

inline

square()

float glsl::DepthOfField_blur_pix::square ( float  x )

inline

Member Data Documentation

blurSourceBuffer

uniform sampler2D glsl::DepthOfField_blur_pix::blurSourceBuffer

Source image in RGB, normalized CoC in A.

direction

const int2 glsl::DepthOfField_blur_pix::direction = int2(0, 1)

fieldOfView

uniform float glsl::DepthOfField_blur_pix::fieldOfView

invNearBlurRadiusPixels

uniform float glsl::DepthOfField_blur_pix::invNearBlurRadiusPixels

lowResolutionFactor

uniform float glsl::DepthOfField_blur_pix::lowResolutionFactor

maxCoCRadiusPixels

uniform int glsl::DepthOfField_blur_pix::maxCoCRadiusPixels

Maximum blur radius for any point in the scene, in pixels.

Used to reconstruct the CoC radius from the normalized CoC radius.

nearBlurRadiusPixels

uniform int glsl::DepthOfField_blur_pix::nearBlurRadiusPixels

nearSourceBuffer

uniform sampler2D glsl::DepthOfField_blur_pix::nearSourceBuffer

For the second pass, the output of the previous near-field blur pass.