From c535ba5a10d068a77615bdf74a40d7b6b1f054d4 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Thu, 29 Jun 2000 04:56:30 +0000
Subject: don't add light's ambient color to BaseColor in gl_update_lighting()

---
 src/mesa/main/light.c | 25 +++++++++++--------------
 1 file changed, 11 insertions(+), 14 deletions(-)

(limited to 'src/mesa/main')

diff --git a/src/mesa/main/light.c b/src/mesa/main/light.c
index 3e7b5a3781b..6f2eb16fd25 100644
--- a/src/mesa/main/light.c
+++ b/src/mesa/main/light.c
@@ -1,4 +1,4 @@
-/* $Id: light.c,v 1.14 2000/06/26 23:37:46 brianp Exp $ */
+/* $Id: light.c,v 1.15 2000/06/29 04:56:30 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -1258,13 +1258,12 @@ void gl_update_lighting( GLcontext *ctx )
 
    /* Precompute some shading values.
     */
-   if (ctx->Visual->RGBAflag) 
-   {
+   if (ctx->Visual->RGBAflag) {
       GLuint sides = ((ctx->TriangleCaps & DD_TRI_LIGHT_TWOSIDE) ? 2 : 1);
       GLuint side;
       for (side=0; side < sides; side++) {
 	 struct gl_material *mat = &ctx->Light.Material[side];
-	 
+
 	 COPY_3V(ctx->Light.BaseColor[side], mat->Emission);
 	 ACC_SCALE_3V(ctx->Light.BaseColor[side], 
 		      ctx->Light.Model.Ambient,
@@ -1276,12 +1275,10 @@ void gl_update_lighting( GLcontext *ctx )
       
       foreach (light, &ctx->Light.EnabledList) {	 
 	 for (side=0; side< sides; side++) {
-	    struct gl_material *mat = &ctx->Light.Material[side];
-	    SCALE_3V( light->MatDiffuse[side],  light->Diffuse, mat->Diffuse );
-	    SCALE_3V( light->MatAmbient[side],  light->Ambient, mat->Ambient );
-	    ACC_3V( ctx->Light.BaseColor[side], light->MatAmbient[side] ); 
-	    if (light->Flags & LIGHT_SPECULAR)
-	    {
+	    const struct gl_material *mat = &ctx->Light.Material[side];
+	    SCALE_3V( light->MatDiffuse[side], light->Diffuse, mat->Diffuse );
+	    SCALE_3V( light->MatAmbient[side], light->Ambient, mat->Ambient );
+	    if (light->Flags & LIGHT_SPECULAR) {
 	       SCALE_3V( light->MatSpecular[side], light->Specular,
 			 mat->Specular);
 	       light->IsMatSpecular[side] = 
@@ -1292,10 +1289,8 @@ void gl_update_lighting( GLcontext *ctx )
 	 }
       }
    } 
-   else
-   {
-      static GLfloat ci[3] = { .30, .59, .11 };
-
+   else {
+      static const GLfloat ci[3] = { .30, .59, .11 };
       foreach(light, &ctx->Light.EnabledList) {
 	 light->dli = DOT3(ci, light->Diffuse);
 	 light->sli = DOT3(ci, light->Specular);
@@ -1303,6 +1298,8 @@ void gl_update_lighting( GLcontext *ctx )
    }
 }
 
+
+
 /* Need to seriously restrict the circumstances under which these
  * calc's are performed.
  */
-- 
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