Thanks for following up, and apologies for the delay-- this slipped past me. Here’s a repro asset I wrote that you can test directly: https://github.com/alexchuber/Assets/raw/refs/heads/main/Repros/triangleNegScale.usdz For additional reference, here's the USDA content of the asset (material omitted for clarity): #usda 1.0 ( defaultPrim = Root metersPerUnit = 1 upAxis = Y ) def Xform Root { def Mesh Triangle { matrix4d xformOp:transform = ( (-1, 0, 0, 0), (0, 1, 0, 0), (0, 0, 1, 0), (0, 0, 0, 1) ) uniform token[] xformOpOrder = [xformOp:transform] int[] faceVertexCounts = [3] int[] faceVertexIndices = [0, 1, 2] normal3f[] normals = [(0, 0, 1), (0, 0, 1), (0, 0, 1)] ( interpolation = vertex ) point3f[] points = [(0, 0, 0), (1, 0, 0), (0, 1, 0)] uniform token subdivisionScheme = none } } The steps to reproduce are just: Add the asset to a new Reality Composer Pro scene. Open the same asset in QuickLook on iOS/macOS. Compare the facing direction in both views. You should see that the triangles appear to have opp
Topic:
Graphics & Games
SubTopic:
RealityKit
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