Autodesk/arnold-usd

Interactive updates of materials in the procedural not refreshing

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When the procedural is used in interactive mode, and a material primitive is modified (e.g. to change the surface shader), this is not updating properly in the arnold render.
This is happening because arnold doesn't have a corresponding material node, so when the material assignment is updated it requires a refresh of the geometries assigned to it, so that they point to the new arnold surface shader

Issue synced internally to ARNOLD-15452