+
+ glEnable(GL_DEPTH_TEST);
+ glEnable(GL_CULL_FACE);
+ glEnable(GL_FRAMEBUFFER_SRGB); // linear colorspace
+
+ gfx_clear = clear;
+ gfx_viewport = viewport;
+ gfx_zbuffer = zbuffer;
+ gfx_cull_face = cull_face;
+
+ // glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);