Bad resulto Uvw randomizer

[LorenzoS]

Hi All,
i am trying a very simple test with CoromaUvwRandomizer map (see attachment) , a plane 400x400cm with uvwmap planar map of 100x100cm.
I would like to get a randomly rotated 100x100cm map repeat on plane, but I can't get the expected result, am I doing something wrong?

thank you

[romullus]

I just tried it and get the same result. It seems that UVW randomizer only randomizes positive U and V directions and then simply mirrors randomization in other directions. I'm moving the topic to the bug reporting board. Meanwhile you can simply move UVW map gizmo outside the mesh boundaries, or use UVW unwrap to precisely place UVs where you want. This should fix your issue.

[LorenzoS]

Thank you for answer,

Meanwhile you can simply move UVW map gizmo outside the mesh boundaries

..does not solve

[romullus]

It certainly fixes the issue for me. Can you show your results?

[LorenzoS]

this is my result

[romullus]

Sorry, i explained it slightly wrong - not only UV map gizmo should be outside of mesh boundaries, but also its projection in X and Y direction can't cross the mesh. I think it would be easier to understand the concept if you would add UVW unwrap modifier and open its window - no part of object's UV island should cross 0 axis of U and V coordinates, otherwise UVW randomizer will mirror its randomization. I hope it's more clear now.

[LorenzoS]

Clear now,
so:

Meanwhile you can simply move UVW map gizmo outside the mesh boundaries

and

but also its projection in X and Y direction can't cross the mesh

.

Thank you

[romullus]

You're welcome! I hope this bug will be fixed sooner rather than later, so we don't have to rely on such workarounds.

[Aram Avetisyan]

There is a double/mirror tiling at the center of UVWMap when using Randomizer with "Number of tiles" set to 1.0. This has been reproduced.

This is reported now. Thanks.

(Internal ID=1184325933)

[rowmanns]

Hi,

This is fixed in v11, you can grab the latest daily build here: https://forum.corona-renderer.com/index.php?topic=40442.0

Rowan

[LorenzoS]

well to know, thank you.