MaterialX：dotproduct

[takahashi_masaki]

Hello,
I am reaching out to inquire about the implementation of MaterialX in V-RAY for Maya, specifically regarding a concern I encountered.
When attempting to render the standard_surface_marble_solid.mtlx file, which is publicly available on MaterialX's Git, using V-Ray, I encountered the warning: "Warning: V-Ray: MaterialX: Unsupported node type "ND_dotproduct_float"."
While the official documentation suggests support for dot product, it seems there might be an issue here.
If this is indeed a bug, I suspect it might be due to a parsing error occurring during syntax analysis when trying to reference the calculation formula for the dot product. It could be that the output type (in this case, float) is being concatenated with ND_dotproduct, resulting in an interpretation error.



MaterialX file reference: Link

Application Version
- vray for maya：6.20.00
- Maya：2023.3


Thank you.

[vladimir_krastev]

Hi, thanks for posting. I get the same warning with my simple scene test. We will investigate the issue and get back to the thread.

[vladimir_krastev]

The issue is reported as a bug under VMAYA-12758 in our internal system.