Attachment 20500 Details for Bug 18659 – a glsl fragment shader used in VTK

a glsl fragment shader used in VTK

vtkDepthPeeling_fs.glsl (text/plain), 1.17 KB, created by francois.bertel on 2008-11-21 14:12:56 UTC

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Creator: francois.bertel

Created: 2008-11-21 14:12:56 UTC

Size: 1.17 KB

patch

obsolete

>// ============================================================================
>//
>//  Program:   Visualization Toolkit
>//  Module:    $RCSfile: vtkDepthPeeling_fs.glsl,v $
>//
>//  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
>//  All rights reserved.
>//  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
>//
>//     This software is distributed WITHOUT ANY WARRANTY; without even
>//     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
>//     PURPOSE.  See the above copyright notice for more information.
>//
>// ============================================================================
>
>// 
>// Fragment shader used by the depth peeling algorithm.
>
>#extension GL_ARB_texture_rectangle: enable
>
>uniform sampler2DRectShadow shadowTex;
>uniform sampler2DRectShadow opaqueShadowTex;
>uniform float offsetX;
>uniform float offsetY;
>
>void propFuncFS();
>
>void main()
>{
>  vec4 r0=gl_FragCoord;
>  r0.x=r0.x-offsetX;
>  r0.y=r0.y-offsetY;
>  float r1=shadow2DRect(opaqueShadowTex,r0.xyz).x;
>  r1=r1-0.5;
>  if(r1<0.0)
>    {
>    discard;
>    }
>  r0.x=shadow2DRect(shadowTex,r0.xyz).x;
>  r0.x=r0.x-0.5;
>  if(r0.x<0.0)
>    {
>    discard;
>    }
>  propFuncFS();
>}

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Attachments on bug 18659: 20500

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