Fix path resolving issue when usd files are used in different systems#2492
Merged
sebastienblor merged 2 commits intoAutodesk:masterfrom Dec 5, 2025
Merged
Fix path resolving issue when usd files are used in different systems#2492sebastienblor merged 2 commits intoAutodesk:masterfrom
sebastienblor merged 2 commits intoAutodesk:masterfrom
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cpichard
approved these changes
Dec 4, 2025
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When usd doesn't manage to resolve a usd path (in particular due to tokens like udims), we still to resolve it properly by asking each layer if the path corresponds to a file on disk. In order to help this process, a "./" needs to be added at the beginning of the filename.
However, when usd still doesn't manage to resolve the path, we're keeping the "./" at the beginning of the arnold filename.
This isn't correct in specific use cases, when the usd file is loaded in a different system than it was exported.
For example, when we export a scene from maya or max on windows, the ocio configuration is authored with an absolute path (C:/Program Files/Autodesk/etc...), and when we render it on linux, TfIsRelativePath returns true. Because of that, arnold ends up with a path set to "./C:/Program Files/etc...." which prevents from using path mapping properly.