From 6599417ca1bf4803ce89546452f5be98fd099760 Mon Sep 17 00:00:00 2001
From: rdb <git@rdb.name>
Date: Sat, 4 Oct 2008 11:39:14 +0000
Subject: [PATCH] Fix bug in shader generator

---
 panda/src/pgraph/shaderGenerator.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/panda/src/pgraph/shaderGenerator.cxx b/panda/src/pgraph/shaderGenerator.cxx
index 7ef1286e4e..23fbaf6e85 100644
--- a/panda/src/pgraph/shaderGenerator.cxx
+++ b/panda/src/pgraph/shaderGenerator.cxx
@@ -651,7 +651,7 @@ synthesize_shader(const RenderState *rs) {
     for (int i=0; i<(int)_alights.size(); i++) {
       text << "\t // Ambient Light " << i << "\n";
       text << "\t lcolor = alight_alight" << i << ";\n";
-      if (_separate_ambient_diffuse) {
+      if (_separate_ambient_diffuse && _have_ambient) {
         text << "\t tot_ambient += lcolor;\n";
       } else {
         text << "\t tot_diffuse += lcolor;\n";