Anisotropy in LuxCore does not work as it should, sharp edges appear, PLEASE HELP

[wizard3376]

LuxCore creates sharp edges where there aren't any.

Here is a render of Cycles.

Cycles doesn't have any problems with anisotropy.

Here is the Blend.file https://drive.google.com/file/d/1KVWK0D5-Z0kuORnmVki-VifjO64lImqW/view?usp=sharing

OS: Windows 10 Blender version: 4.0.2 LuxCore version: 2.8 alpha1

[boxfrogman]

How do you generally adjust anisotropy?

[wizard3376]

@boxfrogman With LuxCore you can only “probably” direct anisotropy using UV https://www.youtube.com/watch?v=FGhPAP0oV9k&t=0s

[boxfrogman]

It only got worse

[wizard3376]

I have the same stripes, but I still don't understand what it is

[wizard3376]

I noticed that the "Metal" node does not indicate that there are no UVs on the object. It seems to me that LuxCore does not see UV

[odil24]

Hi. I have tested your blend file also with previous versions of LCR and it has the same problems like in the latest version. So I don't find any solution for this now.

[wizard3376]

Hi @odil24 why DRAVIA. STUDIO managed to create anisotropy without sharp edges? Could this be due to Subdivision? https://www.youtube.com/watch?v=FGhPAP0oV9k

[yan3dx]

Hi @odil24 why DRAVIA. STUDIO managed to create anisotropy without sharp edges? Could this be due to Subdivision? https://www.youtube.com/watch?v=FGhPAP0oV9k

I was struggling with Anisotropy in LuxCore, had similar result as in your file. I want to share how I've achieved working anisotropy: Nothing special in the material. By the way, both U-roughness and V-roughness have strange behavior when the difference in values is more than x2. The more the spread between them, the sharper the edges.

The result after rendering is completed: Don't look at the middle point; I just wanted to make everything as fast as possible.

I compared that video tutorial to what you have in the .blend file, and everything was similar. But then I compared the UV and the amount of geometry. For some reason, the UV just needs to be straightened, and the subdivision level reduces the sharpness. I can't find any explanation why it works like that.

[yan3dx]

Hi @odil24 why DRAVIA. STUDIO managed to create anisotropy without sharp edges? Could this be due to Subdivision? https://www.youtube.com/watch?v=FGhPAP0oV9k

I was struggling with Anisotropy in LuxCore, had similar result as in your file. I want to share how I've achieved working anisotropy: Nothing special in the material. By the way, both U-roughness and V-roughness have strange behavior when the difference in values is more than x2. The more the spread between them, the sharper the edges.

The result after rendering is completed: Don't look at the middle point; I just wanted to make everything as fast as possible.

I compared that video tutorial to what you have in the .blend file, and everything was similar. But then I compared the UV and the amount of geometry. For some reason, the UV just needs to be straightened, and the subdivision level reduces the sharpness. I can't find any explanation why it works like that.

Attached file with working anisotropy: https://drive.google.com/file/d/1amiST0-eWb5Y0vz1dduC3l0KzoATqETK/view?usp=sharing