How to use PluginNode Multitex in the same way of the VRayMultiSubTex from 3ds Max?

[doark]

Hello to all,

I was watching the video: Setting up the V-Ray Shading and Lighting Pipeline when in the time 5m44s http://youtu.be/xYYrlxwB7Eg?t=5m44s I saw this VRayMultiSubTex texture of 3ds Max!

So I'm working on a scene with lots of trees and need to change the color of the leaves as was demonstrated in the video.

Then I just I thought about seek such texture in Maya! I found a similar VRayPluginNode going on: Create > V-Ray > Create from V-Ray plugin > Texture > MultiTex.

Comparing this node with 3ds Max texture seems to be the same, but I did not understand how I can distribute colors through this node!

Could someone help me on this?
I thank you for your attention and help.

[ivaylo.ivanov]

I think you can use the python post translate script to fill the Texture List and Ids List, since there is no UI for that:

http://docs.chaosgroup.com/display/V...ed+V-Ray+Scene

[doark]

I think you can use the python post translate script to fill the Texture List and Ids List, since there is no UI for that:

http://docs.chaosgroup.com/display/V...ed+V-Ray+Scene

Seems to be just what was missing...

Thanks, I'll try and see how this will work. If I get results, I explain how I managed.

[doark]

I think you can use the python post translate script to fill the Texture List and Ids List, since there is no UI for that:

http://docs.chaosgroup.com/display/V...ed+V-Ray+Scene

Hi Ivaylo, Can you show me any examples of how to do this?

I do not have much experience with scripting. I tried to study the course of DT (Render Using Python Scripting in Maya and Pdplayer) but I don't know how I could link the textures for Multitex.

Thanks for your time and attention!

[t.petrov]

Unfortunately there is no way to make the MultiTex plugin work in Maya, because there is no such thing as face-id in Maya.

Can you describe what you're trying to achieve and then we can think about possible solutions?

[ivaylo.ivanov]

Here is an example. If you want to use mtl ids, you must use vrmesh.

multiTex.zip

[doark]

Here is an example. If you want to use mtl ids, you must use vrmesh.

[ATTACH]23765[/ATTACH]

Many thanks Ivaylo!
Works very well. But now that I understand what I actually wanted to do with the Multitex node.

Actually only now that I realized that I wanted a random distribution between the leaves of the trees. What worked in 3ds Max with the option Random by node name.
But in Maya as soon as I choose the option: Random by node name. Maya crashes!
I think I'll look for other ways to do what I want.

Unfortunately there is no way to make the MultiTex plugin work in Maya, because there is no such thing as face-id in Maya.

Can you describe what you're trying to achieve and then we can think about possible solutions?

What I was trying to do was to create a variation of textures in the leaves of a tree that I imported the 3ds Max. But the more I try the more I realize that this will not be so easy.
I'm considering using an application like the SpeedTree and see if I can have more flexibility in their distribution (random) of difrentes textures on the leaves.

Thanks for the attention of both.

[t.petrov]

Do you have every leaf as a separate Maya object/node?
If yes, you can probably use the render id or some script to setup a switch texture.
Another option is to use user attributes, but you have to write a script that assigns them randomly for every leaf (there were examples posted somewhere in the forum I think).
And another option is to use a color set and the VRayVertexColors texture, but you have to find a way to paint the colors.

[ivaylo.ivanov]

I think in the tutorial, these mtl ids are generated with a special 3ds max modifier. You need just to export the result to vrmesh. If you don't have 3ds Max, you are out of luck .

[mayanic]

hi
i'm also looking for a workflow to achieve color / texture variation for my trees.
so far we were using 3d textures as a multiplier - but no way to gain real control about the distribution.

we need those ids ...

[bigbossfr]

hi
i'm also looking for a workflow to achieve color / texture variation for my trees.
so far we were using 3d textures as a multiplier - but no way to gain real control about the distribution.

we need those ids ...

In my DeeX VRay Arsenal plugin, i use Python scene access to do some random color variation.
Just add user attribute with a random color value, and voila.

[doark]

hi
i'm also looking for a workflow to achieve color / texture variation for my trees.
so far we were using 3d textures as a multiplier - but no way to gain real control about the distribution.

we need those ids ...

Interesting, I never thought to use 3d textures as a multiplier! I have not had time enough to test all solutions presented in the topic. But I tested the t.petrov approach and worked well when I have every leaf separate. The two methods I found were using the Switch utility node:

Triple Switch
http://www.williework.blogspot.com.b...le-switch.html
Single Switch
http://www.tdhendrix.com/single-shad...-utility-node/

Both methods works very well for me. As much with textures and with colors only.