
This uses the stencil buffer to poke holes in the shape of the given cairo_region_t that we will draw through. https://gitlab.gnome.org/GNOME/mutter/merge_requests/867
This uses the stencil buffer to poke holes in the shape of the given cairo_region_t that we will draw through. https://gitlab.gnome.org/GNOME/mutter/merge_requests/867