public void Use(Shader program, ProgramStageMask stage)
{
shader = program;
GL.UseProgramStages(id, stage, program.ShaderID);
}
/**
* Sets the program for a pipeline.
**/
public void SetPipeline(int pl, ProgramStageMask mask)
{
GL.UseProgramStages(pl, mask, siProgramID);
}
