SHADERMODE_LIGHTSOURCE, ///< (lightsource) use directional pixel shading from light source (rtlight)
SHADERMODE_REFRACTION, ///< refract background (the material is rendered normally after this pass)
SHADERMODE_WATER, ///< refract background and reflection (the material is rendered normally after this pass)
- SHADERMODE_SHOWDEPTH, ///< (debugging) renders depth as color
SHADERMODE_DEFERREDGEOMETRY, ///< (deferred) render material properties to screenspace geometry buffers
SHADERMODE_DEFERREDLIGHTSOURCE, ///< (deferred) use directional pixel shading from light source (rtlight) on screenspace geometry buffers
SHADERMODE_COUNT