GLTF model texture is strange when camera moves away

[unano]

Hello, I’m importing gltf into threejs, and I find that when camera is away from model, there will be some strange reflection on the model.


What is the problem and how to fix it?

[mjurczyk]

Does the model have overlapping surfaces in that place? Distance related issues are usually caused by z-fighting.

[unano]

I downloaded the model from sketchfab, and I put it into an online gltf viewer, the problem still exists in the viewer

and I didn’t find any extra surface in the wireframe of this model

[donmccurdy]

Possible to share the model here?

You might try changing minFilter/magFilter settings of the texture perhaps.

[unano]

Hello, the model is downloaded from here: Solar Panel - Download Free 3D model by Harri Snellman (@rivetech) [83483a6] - Sketchfab

[donmccurdy]

Hm, I don’t see anything like that opening the model on https://gltf-viewer.donmccurdy.com/ (which is also based on three.js).

Is there anything else in your scene? What’s the light source? A demo and/or code might be necessary if you’re still having trouble.

[unano]

I have viewed the model on the website you mentioned, the problem still exists when camera moves away, below is my screenshot

[unano]

the model is on the bottom right corner of my screenshot, and you can see that the light on the surface of the model is strange

[donmccurdy]

Hm, I haven’t been able to reproduce that. Screenshot:

If you have access to a second computer or a mobile device (or if someone else in this thread wants to check), it might be worth checking if the same thing occurs on other devices. Perhaps there’s a device- or GPU-specific bug happening.

[unano]

Thank you, it seems to be the reason. I was using my laptop, and I tried on my PC, there is no such bug.