Z-fighting

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Z-fighting occurs when the GPU attempts to render two coplanar polygons at the same time. It generally manifests as flickering between the two polygons with a striped pattern depending upon the camera angle.

Todo: certain quirks of GoldSrc and Source ($decal, multiple $bodys, CSG pass, $additive) are used to mitigate or prevent Z-fighting. Note these.

External links

•  Z-fighting on Wikipedia