improved fog comment

diff --git a/src/mesa/swrast/s_context.c b/src/mesa/swrast/s_context.c
index c8efb962d0336d793b453a8fd4872b592d99a655..55b835bf85cebd4eb319bb608711f2056dbc0a0f 100644 (file)
--- a/src/mesa/swrast/s_context.c
+++ b/src/mesa/swrast/s_context.c
@@ -155,7 +155,7 @@ _swrast_update_polygon( GLcontext *ctx )
 
 /**
  * Update the _PreferPixelFog field to indicate if we need to compute
- * fog factors per-fragment.
+ * fog blend factors (from the fog coords) per-fragment.
  */
 static void
 _swrast_update_fog_hint( GLcontext *ctx )