Graphics and drivers

Shader compilation failed

What the log looks like

shader compilation failed
(?:could not|failed to) (?:compile|link) (?:vertex |fragment )?shader
error compiling shader

How to fix it

  1. The shader pack asks for a GPU feature your driver does not expose
  2. Update the driver; Intel integrated chips fail here most often
  3. Try the shader pack build that matches your Iris or OptiFine version
SeverityStops the game
CategoryGraphics and drivers

Check your own log

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