Mesh standard Material alpha map not working

[nightfury07x]

I have some mesh's with MeshStandardMaterial is applied with alpha map with

alpha.wrapS = THREE.RepeatWrapping; alpha.wrapT = THREE.RepeatWrapping;

and some repeating
Material.alphaMap?.repeat.set(1 / scale, 1 / scale);

alpha map is used to make transparency of the windows of a building but when I try to render it using path-tracer I can see the alpha map is not correctly applied to the mesh while rendering (with correct scale)

Expected behavior

It should be correctly map with the mesh to show window transparency when rendering

image before render with correct alpha map placement

image with rendering with wrong alpha map placement

Platform:

• Device: [Desktop]
• OS: [Windows]
• GPU: [NVidia ]
• Browser: [Chrome]
• Browser Version: Version 122.0.6261.95 (Official Build) (64-bit)
• Three.js version: "three": "^0.161.0",
• Library version: three-gpu-pathtracer": "^0.0.17

[gkjohnson]

Why have you deleted the issue template for reporting a bug? It specifically states to include an example or model to reproduce the issue.

[nightfury07x]

Why have you deleted the issue template for reporting a bug? It specifically states to include an example or model to reproduce the issue.

sorry I have updated it now

[gkjohnson]

From the template:

Screenshots and Repro Model

Add screenshots and a gltf model to help explain your problem (drag and drop).

Please include all information