FGFS-4.1/OpenSceneGraph
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Reduced the number of aliased attributes to fit within the basic 8 attribute location available on basic GLES2 implementations

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Robert Osfield 2009-11-04 12:17:58 +00:00
parent 980c5bd6bb
commit 90d3c710c4
1 changed files with 23 additions and 0 deletions
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23
src/osg/State.cpp
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@ -59,6 +59,29 @@ State::State():
_modelViewProjectionMatrixUniform = new Uniform(Uniform::FLOAT_MAT4,"osg_ModelViewProjectionMatrix");
_normalMatrixUniform = new Uniform(Uniform::FLOAT_MAT3,"osg_NormalMatrix");
bool compactAliasing = true;
if (compactAliasing)
{
setUpVertexAttribAlias(_vertexAlias,0, "gl_Vertex","osg_Vertex","attribute vec4 ");
setUpVertexAttribAlias(_normalAlias, 1, "gl_Normal","osg_Normal","attribute vec3 ");
setUpVertexAttribAlias(_colorAlias, 2, "gl_Color","osg_Color","attribute vec4 ");
_texCoordAliasList.resize(5);
for(unsigned int i=0; i<_texCoordAliasList.size(); i++)
{
std::stringstream gl_MultiTexCoord;
std::stringstream osg_MultiTexCoord;
gl_MultiTexCoord<<"gl_MultiTexCoord"<<i;
osg_MultiTexCoord<<"osg_MultiTexCoord"<<i;
setUpVertexAttribAlias(_texCoordAliasList[i], 3+i, gl_MultiTexCoord.str(), osg_MultiTexCoord.str(), "attribute vec4 ");
}
setUpVertexAttribAlias(_secondaryColorAlias, 6, "gl_SecondaryColor","osg_SecondaryColor","attribute vec4 ");
setUpVertexAttribAlias(_fogCoordAlias, 7, "gl_FogCoord","osg_FogCoord","attribute float ");
}
else
{
setUpVertexAttribAlias(_vertexAlias,0, "gl_Vertex","osg_Vertex","attribute vec4 ");
setUpVertexAttribAlias(_normalAlias, 2, "gl_Normal","osg_Normal","attribute vec3 ");