Add render debug controls for forcing disable of ambient, sun, and local light contributions

(engages AMBIENT_KILL, SUNLIGHT_KILL, and LOCAL_LIGHT_KILL defines in shaders to accomplish
  those tasks as required by each render mode).

2 files changed, 12 insertions, 0 deletions

diff --git a/indra/newview/app_settings/shaders/class1/lighting/lightV.glsl b/indra/newview/app_settings/shaders/class1/lighting/lightV.glsl
index cf635ffa3f..5e39d1629d 100644
--- a/indra/newview/app_settings/shaders/class1/lighting/lightV.glsl
+++ b/indra/newview/app_settings/shaders/class1/lighting/lightV.glsl
@@ -33,7 +33,11 @@ float getAmbientClamp();
 vec4 calcLighting(vec3 pos, vec3 norm, vec4 color)
 {
 	vec4 c = sumLights(pos, norm, color);
+
+#if !defined(AMBIENT_KILL)
     c.rgb += atmosAmbient() * color.rgb * 0.5 * getAmbientClamp();
+#endif
+
     return c;
 }
 
diff --git a/indra/newview/app_settings/shaders/class1/lighting/sumLightsV.glsl b/indra/newview/app_settings/shaders/class1/lighting/sumLightsV.glsl
index 761ac29ee2..0c3ea4231e 100644
--- a/indra/newview/app_settings/shaders/class1/lighting/sumLightsV.glsl
+++ b/indra/newview/app_settings/shaders/class1/lighting/sumLightsV.glsl
@@ -39,7 +39,15 @@ vec4 sumLights(vec3 pos, vec3 norm, vec4 color)
 	
 	col.rgb = light_diffuse[1].rgb * calcDirectionalLight(norm, light_position[1].xyz);
 	col.rgb = scaleDownLight(col.rgb);
+
+#if defined(LOCAL_LIGHT_KILL)
+    col.rgb = vec3(0);
+#endif
+
+#if !defined(SUNLIGHT_KILL)
 	col.rgb += atmosAffectDirectionalLight(calcDirectionalLight(norm, light_position[0].xyz));
+#endif
+
 	col.rgb = min(col.rgb*color.rgb, 1.0);
 	return col;	
 }