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//VTK::System::Dec
/*=========================================================================
Program: Visualization Toolkit
Module: vtkPolyDataFS.glsl
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.
=========================================================================*/
// Template for the polydata mappers fragment shader
uniform int PrimitiveIDOffset;
// VC position of this fragment
//VTK::PositionVC::Dec
// optional color passed in from the vertex shader, vertexColor
//VTK::Color::Dec
// optional surface normal declaration
//VTK::Normal::Dec
// extra lighting parameters
//VTK::Light::Dec
// Texture coordinates
//VTK::TCoord::Dec
// picking support
//VTK::Picking::Dec
// Depth Peeling Support
//VTK::DepthPeeling::Dec
// clipping plane vars
//VTK::Clip::Dec
// the output of this shader
//VTK::Output::Dec
// Apple Bug
//VTK::PrimID::Dec
// handle coincident offsets
//VTK::Coincident::Dec
// Value raster
//VTK::ValuePass::Dec
void main()
{
// VC position of this fragment. This should not branch/return/discard.
//VTK::PositionVC::Impl
// Place any calls that require uniform flow (e.g. dFdx) here.
//VTK::UniformFlow::Impl
// Set gl_FragDepth here (gl_FragCoord.z by default)
//VTK::Depth::Impl
// Early depth peeling abort:
//VTK::DepthPeeling::PreColor
// Apple Bug
//VTK::PrimID::Impl
//VTK::Clip::Impl
//VTK::Color::Impl
// Generate the normal if we are not passed in one
//VTK::Normal::Impl
//VTK::Light::Impl
//VTK::TCoord::Impl
if (gl_FragData[0].a <= 0.0)
{
discard;
}
//VTK::DepthPeeling::Impl
//VTK::Picking::Impl
// handle coincident offsets
//VTK::Coincident::Impl
}
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