Cycles: internal changes that should have no effect on user level yet, added

shader flags for various purposes, and some code for light types other than
points.

intern/cycles/render/object.cpp

@@ -88,9 +88,12 @@ void Object::tag_update(Scene *scene)
 		if(mesh->transform_applied)
 			mesh->need_update = true;
 
-		foreach(uint sindex, mesh->used_shaders)
-			if(scene->shaders[sindex]->has_surface_emission)
+		foreach(uint sindex, mesh->used_shaders) {
+			Shader *shader = scene->shaders[sindex];
+
+			if(shader->sample_as_light && shader->has_surface_emission)
 				scene->light_manager->need_update = true;
+		}
 	}
 
 	scene->mesh_manager->need_update = true;