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//=========================================================================
//
// Program: Visualization Toolkit
// Module: vtkColorMaterialHelper_vs.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.
//
//=========================================================================
#version 110
#define VTK_GL_AMBIENT 1
#define VTK_GL_DIFFUSE 2
#define VTK_GL_SPECULAR 3
#define VTK_GL_AMBIENT_AND_DIFFUSE 4
#define VTK_GL_EMISSION 5
uniform int vtkColorMaterialHelper_Mode;
gl_MaterialParameters getMaterialParameters()
{
gl_MaterialParameters materialParams = gl_FrontMaterial;
if (vtkColorMaterialHelper_Mode == VTK_GL_AMBIENT)
{
materialParams.ambient = gl_Color;
}
else if (vtkColorMaterialHelper_Mode == VTK_GL_DIFFUSE)
{
materialParams.diffuse = gl_Color;
}
else if (vtkColorMaterialHelper_Mode == VTK_GL_SPECULAR)
{
materialParams.specular = gl_Color;
}
else if (vtkColorMaterialHelper_Mode == VTK_GL_AMBIENT_AND_DIFFUSE)
{
materialParams.ambient = gl_Color;
materialParams.diffuse = gl_Color;
}
else if (vtkColorMaterialHelper_Mode == VTK_GL_EMISSION)
{
materialParams.emission = gl_Color;
}
return materialParams;
}
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