diff options
| -rw-r--r-- | src/mesa/main/texenvprogram.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/mesa/main/texenvprogram.c b/src/mesa/main/texenvprogram.c index 6aa89d1e619..9fa8f02a8b0 100644 --- a/src/mesa/main/texenvprogram.c +++ b/src/mesa/main/texenvprogram.c @@ -1203,11 +1203,14 @@ emit_texenv(struct texenv_fragment_program *p, GLuint unit) else alpha_saturate = GL_FALSE; - /* If this is the very last calculation, emit direct to output reg: + /* If this is the very last calculation (and various other conditions + * are met), emit directly to the color output register. Otherwise, + * emit to a temporary register. */ if (key->separate_specular || unit != p->last_tex_stage || alpha_shift || + key->num_draw_buffers != 1 || rgb_shift) dest = get_temp( p ); else |