Which of the following methods allows you to edit the color of an instanceProxy mesh...

The correct method is to use primvars to drive shading variation while preserving instancing. NVIDIA’s Learn OpenUSD scenegraph instance refinement guidance states that prototypes are runtime data and are not editable, instance proxies are not editable, and local opinions on instance proxies are discarded. It then identifies hierarchical refinement as the appropriate strategy for non-destructive instance variation, including inherited primvars. Primvars can drive material properties such as color, inherit down the prim hierarchy, and be authored on the instanceable prim or an ancestor so materials inside the instance subgraph can read the inherited value.

Option B is correct because it changes the effective appearance without directly editing the instance proxy mesh and without disabling instancing. Option A is incorrect because directly modifying an instance proxy’s geometry properties is not allowed. Option C is incorrect because a relationship targeting a color attribute is not the standard mechanism for material color variation. Option D is incorrect because replacing the mesh defeats the purpose of preserving the instanced asset structure. This aligns with Content Aggregation → Asset Modularity and Instancing → Refining Scenegraph Instances, Hierarchical Refinement, Primvars, and Instance Editability .