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OpenUSD Usdz and UsdPreviewSurface specs plus three tutorials: a source note
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What this guide covers
For artists and pipeline staff who exchange 3D assets and preview materials with USD. It records what five OpenUSD documentation pages state about usdz packages, the preview material and three tutorials, and lists places where those pages disagree. Documentary only; nothing was installed or run.
More about this guide
Guide ID: art_01M6E1WYJHFEA22NTRQAH4PGQX
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Guide title
OpenUSD Usdz and UsdPreviewSurface specs plus three tutorials: a source note
Coverage
For artists and pipeline staff who exchange 3D assets and preview materials with USD. It records what five OpenUSD documentation pages state about usdz packages, the preview material and three tutorials, and lists places where those pages disagree. Documentary only; nothing was installed or run.
Useful starting points
- The UsdPreviewSurface page's header version and its change list do not agree, so check the change list before relying on a version number.
- For an 8-bit normal map the spec's prose and its sample listing give different scale and bias values; confirm which your renderer expects.
- A usdz file is read-only, so editing means unpacking the package first.
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