echadwick-artist
commented
7 months ago Perhaps related... I get a similar result in the glTF Sample Viewer with a model exported using Autodesk's built-in glTF exporter for 3ds Max. UV0-dual-paraboloid_UV1-equirect.zip
It passes the glTF Validator, with a single Info about a non pow2 texture.
How it renders in glTF Sample Viewer Release (https://github.khronos.org/glTF-Sample-Viewer-Release/):
How it renders in UX3D's development version (http://gltf.ux3d.io/):
(Edit: fix for UX3D broken link)
Steps to reproduce: go to https://github.khronos.org/glTF-Sample-Viewer-Release/ and choose the model BoxInterleaved. Screenshot:
I'm using Chrome on Windows. I get the same results on Microsoft Edge on Windows.
Compare this to say https://asset-explorer.needle.tools/BoxInterleaved or drop the model at https://github.com/KhronosGroup/glTF-Sample-Assets/tree/main/Models/BoxInterleaved into say https://gltf-viewer.donmccurdy.com/, where you get (after adjusting the camera) something like:
Note: there was a bug filed about BoxInterleaved five years ago that was closed, so this model evidently displayed correctly at some point. Regression?