/// <summary>
/// Sets up and initializes the viewport by setting the Uniforms
/// </summary>
public void SetupViewport(ViewportInfo viewport)
{
Transform mv = new Transform();
bool haveModelView = false;
if (m_Uniforms.rglModelViewProjectionMatrix >= 0) {
Transform mvp = viewport.GetXform (CoordinateSystem.World, CoordinateSystem.Clip);
m_MVPXform = mvp;
float[] modelViewProjection = mvp.ToFloatArray(false);
GL.UniformMatrix4 (m_Uniforms.rglModelViewProjectionMatrix, 1, false, modelViewProjection);
}
if (m_Uniforms.rglModelViewMatrix >= 0) {
mv = viewport.GetXform (CoordinateSystem.World, CoordinateSystem.Camera);
m_MVXform = mv;
haveModelView = true;
float[] modelView = mv.ToFloatArray(false);
GL.UniformMatrix4 (m_Uniforms.rglModelViewMatrix, 1, false, modelView);
}
if (m_Uniforms.rglProjectionMatrix >= 0) {
Transform pr = viewport.GetXform (CoordinateSystem.Camera, CoordinateSystem.Clip);
float[] projection = pr.ToFloatArray(false);
GL.UniformMatrix4 (m_Uniforms.rglProjectionMatrix, 1, false, projection);
}
if (m_Uniforms.rglNormalMatrix >= 0) {
float[] normalMatrix = new float[9];
if (!haveModelView) {
mv = viewport.GetXform (CoordinateSystem.World, CoordinateSystem.Camera);
m_MVXform = mv;
}
Matrix4Dto3F (mv, ref normalMatrix, false);
GL.UniformMatrix3 (m_Uniforms.rglNormalMatrix, 1, false, normalMatrix);
}
}
