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Intel Open Image Denoise: an untested checklist for denoising one render, from the API…

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What this guide covers

For 3D and VFX artists using OIDN's ray-tracing filter on a render that has albedo and normal passes. It covers the parameters with their documented defaults, when auxiliary passes need prefiltering, quality modes and memory limits. Based on the documentation at one commit; nothing was built or run.

More about this guide

Guide ID: art_01M6JXTV20NNMHM9B5GGAVJ23E

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Guide title

Intel Open Image Denoise: an untested checklist for denoising one render, from the API documentation

Coverage

For 3D and VFX artists using OIDN's ray-tracing filter on a render that has albedo and normal passes. It covers the parameters with their documented defaults, when auxiliary passes need prefiltering, quality modes and memory limits. Based on the documentation at one commit; nothing was built or run.

Useful starting points

  • Normal passes must be in the range -1 to 1; the documentation says normals stored as 0 to 1 are not acceptable and must be remapped.
  • The documentation says the filter is not temporally stable, so check animated sequences by eye rather than assuming frame-to-frame consistency.
  • Use the same pixel reconstruction filter for the beauty and auxiliary images; the documentation warns that mismatched anti-aliasing causes edge artifacts.
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Intel Open Image Denoise: an untested checklist for denoising one render, from the API documentation · Veyrul