UV/Texture variation

Discussions about SOFTIMAGEs© Interactive Creative Environment©
User avatar
druitre
Posts: 471
Joined: 25 Jun 2009, 21:35

UV/Texture variation

Post by druitre » 20 Aug 2015, 15:14

Hi,

is this https://vimeo.com/135281778 possible somehow in SI? (Mainly at 2:30, 'texture variations')

I'm trying to use ICE to get randomly offset UV islands - can get random offset on polyislands and random offset on UVs but not random offset on UV islands, so far.

I should add I'm rendering with Redshift and that restricts the use of the rendertree, as many lookupnodes aren't supported. I'd prefer to do all the randomisations purely within ICE and not have to transfer attributes to the shadertree.

Bullit
Moderator
Posts: 2621
Joined: 24 May 2012, 07:44

Re: UV/Texture variation

Post by Bullit » 20 Aug 2015, 21:01

Might help?

https://www.si-community.com/forum/v ... =33&t=3288

Edit: maybe this will give you some ideas:




User avatar
rray
Moderator
Posts: 1810
Joined: 26 Sep 2009, 13:51
Location: Bonn, Germany

Re: UV/Texture variation

Post by rray » 20 Aug 2015, 23:10

I have this compound lying around which assigns random vertex colors to UV islands (not sure who's it from)

Redshift doesn't support the shifting in the render tree, but ICE can do it..

You could use two of the color R,G,B values (for example R and G) and add them to the U,V values to get the variation.


Here's the compound.
You do not have the required permissions to view the files attached to this post.
softimage resources section updated Sep 26th 2026

User avatar
druitre
Posts: 471
Joined: 25 Jun 2009, 21:35

Re: UV/Texture variation

Post by druitre » 21 Aug 2015, 14:48

Bullit: interesting stuff in that thread, thanks.
Rray: great, I got it to work!
ScreenShot008.jpg
Here's the compound, just enter the texture projection you'd like to randomize and that's it.
In the rendertree, you can also get the variation through scalar map lookup - UVIsland_Vertex_Colors to further modify your material.

Cheers, Jasper
Randomize_Texture_JS.zip
You do not have the required permissions to view the files attached to this post.

Bullit
Moderator
Posts: 2621
Joined: 24 May 2012, 07:44

Re: UV/Texture variation

Post by Bullit » 21 Aug 2015, 17:03

Also this

Random color on polygon Island

https://www.si-community.com/forum/v ... =22&t=2489

Maybe Rray note came from here.

User avatar
rray
Moderator
Posts: 1810
Joined: 26 Sep 2009, 13:51
Location: Bonn, Germany

Re: UV/Texture variation

Post by rray » 21 Aug 2015, 22:53

cool
softimage resources section updated Sep 26th 2026