W Coordinate Shader

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W Coordinate Shader

Postby mahomedia » Mon Dec 05, 2016 9:14 am

mahomedia Mon Dec 05, 2016 9:14 am
Hello,
how can I use "W Coordinate" shader in materials. Can I use it similar to vertex map in C4D? May be I can use it to mix textures based on weights of vertexes.

Thanks..
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Re: W Coordinate Shader

Postby atome451 » Mon Dec 05, 2016 9:50 am

atome451 Mon Dec 05, 2016 9:50 am
Hi,
It's a shader to use with hair. For a gradient to the length of hair by sample.
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Re: W Coordinate Shader

Postby lukas8410 » Tue Dec 06, 2016 11:53 am

lukas8410 Tue Dec 06, 2016 11:53 am
If You want to use vertex maps, then probably the newest version will make You happy cause it supports them to some extent :)

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Re: W Coordinate Shader

Postby mikeadamwood » Wed Dec 07, 2016 12:30 am

mikeadamwood Wed Dec 07, 2016 12:30 am
lukas8410 wrote:If You want to use vertex maps, then probably the newest version will make You happy cause it supports them to some extent :)

Cheers
Luke


Is that the new as in test release? How does it work?
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Re: W Coordinate Shader

Postby aoktar » Thu Dec 08, 2016 11:52 am

aoktar Thu Dec 08, 2016 11:52 am
Available in latests versions. See release topics for that.

It's a gradient generator for hairs. It produces 0-1 values across by hair strands.
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Re: W Coordinate Shader

Postby Cristal » Mon Apr 12, 2021 3:04 pm

Cristal Mon Apr 12, 2021 3:04 pm
W coordinate works with render hair enable, but it doesn't with instance, even if the object has "octane object tag" on it.
Any tip?
Thanks
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Re: W Coordinate Shader

Postby aoktar » Mon Apr 12, 2021 4:20 pm

aoktar Mon Apr 12, 2021 4:20 pm
Cristal wrote:W coordinate works with render hair enable, but it doesn't with instance, even if the object has "octane object tag" on it.
Any tip?
Thanks

What are you doing exactly? It's designed just for hairs
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Re: W Coordinate Shader

Postby Cristal » Tue Apr 13, 2021 1:41 am

Cristal Tue Apr 13, 2021 1:41 am
I know, but you can render hair or take and object and use it as an instance. I need to color this, W Coordinate seems to work ok with hair but not with instances as hair.
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Re: W Coordinate Shader

Postby Cristal » Thu Apr 15, 2021 9:49 pm

Cristal Thu Apr 15, 2021 9:49 pm
Please someone help here. Or maybe Octane as I don't know if this is possible. We are talking about HAIR COLOUR IN OCTANE

1. If you want to add a gradient to each hair you must use W Coordinate node on Octane shader to work properly, and it works, so you can archive something as the grass photo in this thread.
2. However if we use INSTANCE on HAIR, (use any polygon we had made as a hair), W coordinate doesn't work. And it doesn't work either if we apply the texture on our polygon (the hair instance)

So, if the photo attached is HAIR with a hair instance, how can I give that yellow color on the end of the hair and white on root?

Thank you!!
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Re: W Coordinate Shader

Postby aoktar » Fri Apr 16, 2021 5:33 am

aoktar Fri Apr 16, 2021 5:33 am
How it can be a hair primitive if you use mesh for hair? As said that's just for hairs. Put your object here to get a quick support, I'm not support to spend my time for estimations. Thanks for understanding.
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