OTOY Forums

Hi, first post...

A Houdini specific question but I'm sure others have tried/wanted similar with other plugins.

Is it currently possible to use the vector color attribute from points (Cd) to affect an octane shader network?
Where the shader would derive all color from the point data itself.

A big part of my particle workflow within Houdini is to use color within a simulation.
Be a shame not to be able to carry this over to octane.

Cheers,

Matt

Not currently, sorry. The current Octane 2.2 shaders and the mesh or instance primitives don't support custom attributes.

I hope that at least from the shaders point of view, we could add this kind of features in Octane 3 when the OSL support is available to write custom shaders.

-Juanjo

Thanks for getting back to me.

Shame, as it sounds like Octane 2.2 might be a walled garden until it can talk to attributes within the houdini network.

So to achieve a similar result I'll try carrying a UV point attribute through the sim and apply color via a image texture at the render/shader stage instead.

I'm hoping Octane does fully support UV attributes whether vertex or point (doesn't matter).

p.s. what is "OSL Support"?

Cheers,

Matt

Open Shading Language. http://opensource.imageworks.com/?p=osl

This feature should make possible write custom shader and tool nodes in Octane.

-Juanjo