Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Bug Reporting => Topic started by: tip01 on 2025-04-03, 17:32:48

Title: Material, map, camera problem?
Post by: tip01 on 2025-04-03, 17:32:48
Hello! What could be the problem? Simple material with a map in diffuse. The material is not rendered correctly in production render if UVW is less than a certain value. When rendering IR everything is ok. Also when rendering from the perspective window (without camera) everything is ok. Corona can't handle such textures. Direct Dependence on FOV
Title: Re: Material, map, camera problem?
Post by: maru on 2025-04-08, 17:24:29
Which version of Corona and 3ds Max are you using? That's very strange. I am not aware of any reports where something renders different in IR and in production.
Could you send us the problematic scene, or a simplified version of it, at https://support.chaos.com/hc/en-us/requests/new
Title: Re: Material, map, camera problem?
Post by: tip01 on 2025-04-10, 08:08:04
FOV Above 6, the texture is distorted. FOV Below 6 ok
Title: Re: Material, map, camera problem?
Post by: tip01 on 2025-04-11, 14:51:00
yes, sorry. I didn't reset the blur after my attempts to fix the situation. But resetting the blur parameters, also to the minimum values ​​of 0.01, saves the problem(((. The further from the camera, the more distortion appears.
Title: Re: Material, map, camera problem?
Post by: maru on 2025-04-11, 14:55:41
This looks like a moire pattern: https://en.wikipedia.org/wiki/Moir%C3%A9_pattern
Title: Re: Material, map, camera problem?
Post by: tip01 on 2025-04-13, 08:05:24
Hello!
This effect is observed when the monitor cannot display a high-resolution image. Averaging and adapting pixels until you zoom in to see the details without this effect. In this case, the render engine does not understand what the pixel density is on the texture and produces an unacceptable result with a moire effect. Radically changing the texture. I ran a test in another render engine. There is no such problem. Is it possible to somehow control, disable adaptivity?
Title: Re: Material, map, camera problem?
Post by: maru on 2025-04-16, 14:42:35
Can you share your results from the other render engine? What engine was it?
Title: Re: Material, map, camera problem?
Post by: tip01 on 2025-04-16, 15:38:17
Hi! I used FStorm. The result was better there. But when the lighting scenario becomes more complex, this moire appears. The texture is distorted, but not so much...((( I think the question is answered.