OTOY Forums

is there a way - maybe via OSL - to random texture map a group of polygons which share the same surface and UV map? ideally i would like to use this for curtain planes behind windows, but i can imagine other useful ways as well. i wish to use a set of defined textures which can be integrated into the node network or be loaded at runtime from a folder.

cheers

markus

Hi,

If they share the same material and UV map and they are not instances I'm not sure if it is going to be possible using the current Octane shader nodes, but probably yes, as you say, an OSL shader could help perhaps building some kind of random UV mapping coordinates.

Thanks,
-Juanjo

I think what your asking for is a feature/tool in LWCAD. FYI. I know it's not Octane related, and as you say maybe OSL could help...but I use the feature in LWCAD all the time to help randomize polys on the UV layout grid.

3dreamstudios wrote:I think what your asking for is a feature/tool in LWCAD. FYI. I know it's not Octane related, and as you say maybe OSL could help...but I use the feature in LWCAD all the time to help randomize polys on the UV layout grid.

interesting, which feature specifically are you refering to? i have LWCAD, but not sure if i understand what workflow could be used? cheers markus

3dworks wrote:

3dreamstudios wrote:I think what your asking for is a feature/tool in LWCAD. FYI. I know it's not Octane related, and as you say maybe OSL could help...but I use the feature in LWCAD all the time to help randomize polys on the UV layout grid.

interesting, which feature specifically are you refering to? i have LWCAD, but not sure if i understand what workflow could be used? cheers markus

I may not understand your request, sorry if this doesn't help. But under LWCAD Cad Modify, there is a Random section...then a UV Random. This will allow you to randomize the placement of the UV's on polys...so you don't get a repeating pattern typically, but could be used for other techniques too I guess.

3dreamstudios wrote:

3dworks wrote:

3dreamstudios wrote:I think what your asking for is a feature/tool in LWCAD. FYI. I know it's not Octane related, and as you say maybe OSL could help...but I use the feature in LWCAD all the time to help randomize polys on the UV layout grid.

interesting, which feature specifically are you refering to? i have LWCAD, but not sure if i understand what workflow could be used? cheers markus

I may not understand your request, sorry if this doesn't help. But under LWCAD Cad Modify, there is a Random section...then a UV Random. This will allow you to randomize the placement of the UV's on polys...so you don't get a repeating pattern typically, but could be used for other techniques too I guess.

thanks, will have a look into that!

This is how it works ...
https://www.youtube.com/watch?v=ej29Ye6jhZ0

adkkda wrote:This is how it works ...
https://www.youtube.com/watch?v=ej29Ye6jhZ0

thank you!