Corona Renderer Forum

Corona Renderer for Cinema 4D => Corona Renderer for Cinema 4D - general => Topic started by: 3dkobi on 2019-05-31, 05:57:26

Title: color variations on tree leaves
Post by: 3dkobi on 2019-05-31, 05:57:26
Hi guys,

Is there a way to randomize the color of leaves in a tree model in order to get more natural look ?
It is possible in vray, thought the process of doing it in vray is a bit tedious.

I'm on R20 Broadcast

Peace,
Kobi
Title: Re: color variations on tree leaves
Post by: TomG on 2019-05-31, 07:16:19
The native C4D Variation shader should do the trick (in any render engine). I can't say whether it is limited to only particular versions of C4D (broadcast, studio etc), though I do know it only appeared in more recent versions, but is definitely in there in R20 Studio.
Title: Re: color variations on tree leaves
Post by: 3dkobi on 2019-05-31, 07:58:35
The variation shader is only in the visualize & studio version, not in the prime & broadcast :(

So I understand corona doesn't have a build-in system for such a thing...maybe I'll post it in the wishlist
Title: Re: color variations on tree leaves
Post by: rozky on 2019-05-31, 20:03:44
maybe uvw randomizer will be way - same texture with color variation (uvw random of gradient shader)
Title: Re: color variations on tree leaves
Post by: 3dkobi on 2019-06-02, 05:43:23
I tried to use the uvw randomizer, but since there is no documentation for corona shaders   I didn't succeed to do anything with this shader....
Title: Re: color variations on tree leaves
Post by: romullus on 2019-06-02, 09:36:09
If Corona for C4D has multimap shader, then that's what you need to look for. UVW randomizer isn't exactly for colour randomization.
Title: Re: color variations on tree leaves
Post by: 3dkobi on 2019-06-02, 10:21:01
Corona for C4D doesn't have the multimap shader...
Title: Re: color variations on tree leaves
Post by: koubankeo on 2019-06-02, 13:48:50
Earlier I used the plugin kendoshader https://cinemaplugins.com/c4d-plugins/kendo-shaders/. I don't know if it works on R20.

Now I use variation shader with C4D studio version.
Title: Re: color variations on tree leaves
Post by: rozky on 2019-06-02, 19:50:36
I tried to use the uvw randomizer, but since there is no documentation for corona shaders   I didn't succeed to do anything with this shader....
https://coronarenderer.freshdesk.com/support/solutions/articles/12000039642-what-is-the-coronauvwrandomizer-map-
Title: Re: color variations on tree leaves
Post by: lenogre on 2019-06-05, 08:29:26
Shader Variation is for everyone (Prime include). Since C4D R17.
Title: Re: color variations on tree leaves
Post by: 3dkobi on 2019-06-05, 08:41:27
No it's not.
Title: Re: color variations on tree leaves
Post by: lenogre on 2019-06-05, 12:11:29
Strange !
Title: Re: color variations on tree leaves
Post by: 3dkobi on 2019-06-06, 07:34:40
Well, It's a mistake...
My friend has a copy of the studio version and he has the variation shader. I have R17 Prime + R20 Broadcast, both of them don't have this shader
Title: Re: color variations on tree leaves
Post by: koubankeo on 2019-06-06, 09:08:54
Of course, Variation Shader has only Studio and Visualize versions. It's a big lack of a Prime version, and there's no way to address it directly in C4D. Vray has Vray TexMulti, you cannot load the entire texture folder. The only way to do it in Prime is the Kendoshader plugin, or am I wrong?
Title: Re: color variations on tree leaves
Post by: 3dkobi on 2019-06-06, 09:10:40
The Kendoshader doesn't support R20
Title: Re: color variations on tree leaves
Post by: lenogre on 2019-06-07, 10:53:02
Mean-spirited Maxon.
Title: Re: color variations on tree leaves
Post by: nkilar on 2019-06-07, 11:19:13
Mean-spirited Maxon.

Not sure if cynical or not :))

Afaik 3ds Max has the multimap integrated in Corona as there isn't a native option for something like that. I do think the variation shader could be vastly improved by Maxon for sure though :)