OFF MODULATE MODULATE2X MODULATE4X ADD ADDSIGNED ADDSIGNED2X SUBTRACT ADDSMOOTH BLENDDIFFUSEALPHA BLENDTEXTUREALPHA BLENDFACTORALPHA BLENDCURRENTALPHA MODULATEALPHA_ADDCOLOR MODULATEINVALPHA_ADDCOLOR MODULATEINVCOLOR_ADDALPHA SELECTARG1 SELECTARG2 DOTPRODUCT3 DIFFUSE SPECULAR FACTOR