Fix refcount leaks due to render.Pop/PushFilter functions This was due to recent changes, but exposes a bigger issue that also affected func_breakable_surf Added MAX_PLAYER_BITS VRAD: Enable static prop lighting (vertex & lightmap) with `-fast` * Since it is already controlled by `-StaticPropLighting`. `-fast` makes static prop lightmaps generate much faster. * Mention -StaticPropLighting requirement for vertex lighting on static props in the FGD (`Disable Vertex Lighting` field) Minor model rendering changes from cs:go * Mostly null checks, etc. Prevent crashes with vertexSize of 0 on materials * Will now use error material instead, and SPAM you about what material is wrong Fix a crash on game exit to do with models Clear "missing" flag on all materials when a map is started loading