Transparency Shader API

To properly handle transparency, your fragment shader should contains the following function calls: More...

Functions
bool	OivDepthPeel (vec3 fragmentCoords)
	This method peels the current fragment.

Detailed Description

To properly handle transparency, your fragment shader should contains the following function calls:

• You should enclose your code in if ( OivDepthPeel(gl_FragCoord.xyz) ) { } condition
• You should output your color using OivDepthPeelingOutputColor() method

These methods are accessible by including the <Inventor/oivDepthPeeling_frag.h> header in your shader: Ex:

 
void main()
{
  if ( OivDepthPeel(gl_FragCoord.xyz) )
  {
    Vec4 color = vec4(1, 0, 0, 0.5);
    OivDepthPeelingOutputColor(color);
  }
}

Function Documentation

OivDepthPeel()

bool OivDepthPeel

(

vec3

fragmentCoords

)

This method peels the current fragment.

If the fragment must be ignored, this method does the discard. The fragment coords must be in screen space (gl_FragCoord.xyz should always be used)

Returns true if the fragment should be shaded.