On Wed, 15 May 2019 at 19:37, Paul Gofman <gofmanp at gmail.com> wrote: > + wined3d_device_set_render_state(device->wined3d_device, WINED3D_RS_LIGHTING, > + op == D3DPROCESSVERTICES_TRANSFORMLIGHT && !!device->material); The "!!" here is technically redundant, but shouldn't hurt.