OpenGL2: Parse radius entries from misc_cubemap entities.

code/renderergl2/tr_light.c

@@ -471,7 +471,7 @@ int R_CubemapForPoint( vec3_t point )
 			vec3_t diff;
 			vec_t length;
 
-			VectorSubtract(point, tr.cubemapOrigins[i], diff);
+			VectorSubtract(point, tr.cubemaps[i].origin, diff);
 			length = DotProduct(diff, diff);
 
 			if (shortest > length)