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ShaderGlass troubleshooting: black screen, lag, and capture

Resolve common ShaderGlass overlay and capture problems on Windows.

Black screen or no picture

Update your graphics driver, confirm DirectX 11 support and test a normal desktop window. If a game uses exclusive fullscreen, try borderless instead.

High GPU use or lag

Try a simpler shader and reduce output resolution or filter complexity. Some CRT presets use multiple rendering passes that cost more GPU time.

Yellow capture border

Windows may display a border around captured content. Behavior depends on operating system and capture mode; do not assume it can always be removed.

File or DLL errors

Confirm that the download is complete and extracted. Consult the application documentation for missing runtimes and avoid downloading individual DLL files from random sites.

Frequently asked questions