Troubleshooting
Symptom | Cause and fix |
|---|---|
Selection has speckled holes | Dithering. Use Render ID Pass, or press the panel's fix button, or export 16-bit. |
Selection has a ragged fringe on edges | You are using the pass from a normal anti-aliased render. Use Render ID Pass. |
Exported colours do not match the panel | A view transform is being applied. If you built your own File Output node, set its colour management to Standard/sRGB. |
A material is missing from the pass | Its Render Method is Blended. Set it to Dithered. |
A material renders black | Excluded, linked, or grease pencil. |
The pass is absent from the render | The checkbox is off on the view layer you rendered. |
Palette list is empty | The pass is switched off. |
A new material has no colour yet | It is assigned before the next render. Press Refresh Palette to do it now. |
Two colours look alike | Change Seed, switch to Max Contrast, or pin one. They are never actually identical. |