Vertex Color hack scene

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Autodesk Softimage XSI (Developed by Face)

Vertex Color hack scene

Postby rray » Fri Jul 21, 2017 10:45 pm

rray Fri Jul 21, 2017 10:45 pm
Hi

Found a little hack how I can get RGB vertex colors into octane

It's is using 3 UV sets, also scalar/vector ICE attributes (per node) can be transfered that way. Ideally they should be in 0..1 range.

Per vertex/polygon attributes have to be converted to per node first.

for SI 2015 SP2/Octane for Softimage 3.00 RC1 only, others I don't know

Image
scene here
:D
Windows 10 / Core i7 980x (from 2010) / 24GB / GTX 980ti
http://rray.de/xsi
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Re: Vertex Color hack scene

Postby rray » Sat Jul 22, 2017 8:15 pm

rray Sat Jul 22, 2017 8:15 pm
...
more testing, couldn't help it :lol:

There's a limit of 3 uv sets in octane so you'll not be able to use normal uvs with that method above.

Would need to pack vertex color RGBAs in 2 UV sets, one for RG and one for BA. One is left for uvs then.

Alpha channel can be used to blend with the normal texture like shown in scene file...

Second scene in project shows how to export ICE color to octane

Image
project here
Windows 10 / Core i7 980x (from 2010) / 24GB / GTX 980ti
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Re: Vertex Color hack scene

Postby face » Mon Jul 24, 2017 4:11 am

face Mon Jul 24, 2017 4:11 am
Indeed, realy clever ;)
Win10 Pro, Driver 378.78, Softimage 2015SP2 & Octane 3.05 RC1,
64GB Ram, i7-6950X, GTX1080TI 11GB
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