duh, use the proper param name.

indra/newview/app_settings/shaders/class1/lighting/lightFuncV.glsl

@@ -28,7 +28,7 @@ float calcPointlightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, floa
 	float da = clamp(1.0/(la * d), 0.0, 1.0);
 	
 	// spotlight coefficient.
-	float spot = max(dot(-ln, lv), is_omnidirectional);
+	float spot = max(dot(-ln, lv), is_pointlight);
 	da *= spot*spot; // GL_SPOT_EXPONENT=2
 
 	//angular attenuation