<function name="PreRender" parent="GM" type="hook"> <ishook>yes</ishook>⤶ <description>Called before the renderer is about to start rendering the next frame.</description> <realm>Client</realm> <predicted>No</predicted>⤶ <rets> <ret name="" type="boolean">Return true to prevent all rendering. This can make the whole game stop rendering anything.</ret> </rets> </function> <example> <description>Fills the draw buffer with black pixels, removing tearing when looking at a world leak. Achieves the same effect as using gl_clear. This is no longer needed as GMod does this by default.</description> <code> hook.Add("PreRender", "ResetBuffer", function() cam.Start2D() surface.SetDrawColor(0, 0, 0, 255) surface.DrawRect(0, 0, ScrW(), ScrH()) cam.End2D() end) </code> </example>