- // if there's no intersection between the context and our surface, and we're rendering 'onto', then we're done
- if (Color::is_onto(blend_method)) return true;
+ // if there's no intersection between the context and our
+ // surface, and we're rendering 'onto', then we're done
+ if (Color::is_onto(blend_method) && !Color::is_straight(blend_method))
+ return true;