Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Bug Reporting => [Max] Resolved Bugs => Topic started by: John.McWaters on 2021-01-19, 20:39:15

Title: 'Randomize Each Tile' in UVW Randomizer doesn't work correctly with some maps
Post by: John.McWaters on 2021-01-19, 20:39:15

I have discovered that if you take a texture, size it via 'Real World Scale', feed it through another component (I know of two), and then feed that into a UVW Randomizer, it will cause the 'Randomize Each Tile' function within the UVW Randomizer to not work correctly. It doesn't appear that Corona Tri-planar affects this issue at all.

I've attached a Max file that feeds a checker map through a 1) map input of a Gradient Ramp and 2) a Corona Mix, and when 'Randomize Each Tile' is enabled, it causes a speckled appearance.

This has been problematic for me because I use both Corona Mix (to multiply blend maps together) and Gradient Ramp on a lot of materials in my projects. I think a work around for now would be to use the RGB Multiply map to blend my textures together.

Title: Re: 'Randomize Each Tile' in UVW Randomizer doesn't work correctly with some maps
Post by: GeorgeK on 2021-01-20, 10:37:05

Quote from: John.McWaters on 2021-01-19, 20:39:15

I have discovered that if you take a texture, size it via 'Real World Scale', feed it through another component (I know of two), and then feed that into a UVW Randomizer, it will cause the 'Randomize Each Tile' function within the UVW Randomizer to not work correctly. It doesn't appear that Corona Tri-planar affects this issue at all.

I've attached a Max file that feeds a checker map through a 1) map input of a Gradient Ramp and 2) a Corona Mix, and when 'Randomize Each Tile' is enabled, it causes a speckled appearance.

This has been problematic for me because I use both Corona Mix (to multiply blend maps together) and Gradient Ramp on a lot of materials in my projects. I think a work around for now would be to use the RGB Multiply map to blend my textures together.

Hi John, I believe this is the same issue as you've reported here: https://forum.corona-renderer.com/index.php?topic=32039.0

We have it already logged for further investigation from the development team.

(Report ID=CRMAX-172)

Title: Re: 'Randomize Each Tile' in UVW Randomizer doesn't work correctly with some maps
Post by: John.McWaters on 2021-01-20, 14:58:36

Yes, I just wanted to describe how it doesn't seem to be limited to only the CoronaMix component.

Title: Re: 'Randomize Each Tile' in UVW Randomizer doesn't work correctly with some maps
Post by: Architex on 2021-01-25, 15:13:32

I found that to.
For some reason, some maps wont behave like you demonstrate on Corona 6 new features video.

Hope you could fix it, otherwise i have to say Corona 5 still works better
Cheers