case KEEP: return GL_KEEP;
case SET_ZERO: return GL_ZERO;
case REPLACE: return GL_REPLACE;
- case INCR: return GL_INCR;
- case DECR: return GL_DECR;
+ case INCR_CLAMP: return GL_INCR;
+ case DECR_CLAMP: return GL_DECR;
case INVERT: return GL_INVERT;
case INCR_WRAP: return GL_INCR_WRAP;
case DECR_WRAP: return GL_DECR_WRAP;