jstone-lucasfilm
commented
4 months ago @adro79 This is one of our main focuses going forward, reviewing and merging proposals for new MaterialX nodes from the community, and we'd appreciate any proposals that you have the bandwidth to write up.
Curvature is a feature we're very interested in, and I believe the main work will be coming up with a standard definition of this idea that holds its meaning across renderers. Often curvature is implemented in terms of the "partial derivatives" of the normal and position vectors, so one path forward would be for a team to propose definitions of partial derivative nodes in MaterialX, which could then be used to robustly define a curvature node.
adro79
Hello! I'd like to get some information about your thoughts about adding more global type nodes like Curvature and Distance to the MaterialX.
As an Environment Artist, I use those types of shaders quite a lot to build complex materials. Now that Maya 2025 has implemented the MaterialX Data Format with Lookdevx, it's time to consider implementing it in my workflow.
I open this issue because I'm worried about not getting the full universalization of shaders that MaterialX purposes with complex shaders. Arnold and Karma are implementing their own render-specific mtlx nodes to face those limitations, breaking the compatibility between renders.
That being said, are there any plans regarding this?
Thanks.