USD texturing within Fusion

Hello!

Have I overlooked a means by which I can create textures using Fusion tools (eg fastnoise, grid, text, whatever) and apply them directly to USD objects with uvs? Looking for the functionality present in Replace Material 3D where you wire the texture right in.

Thanks,

Ryan

Welcome to the club. The tech demo, known as USD, doesn't have separate USD surface shader. Nor the ability to add textures to an existing model. Nor the ability to create an MTLX file.

Maybe later, maybe. It's only a very small fringe use that would want to do something like add a texture to a model.

Ok rad we love this...

Back to importing alembics without point colors.

Back to importing alembics without point colors.

... which actually works pretty fine

Not if you have objects that have to be a million different colors, which also need imported velocities.

Still no-go with Fusion 19 beta right? I'm not seeing a source input on this uTexture node? I do a lot of motion graphics - between this not working and Krokodove being broken, I feel sad.

uImagePlane can't even update its texture on playback, it only updates when re-evaluated by disabling-enabling the node.

Textures from memory are a bit tricky in USD. What it needs is a limbo of writing a custom Hydra IO plugin for reading in-memory assets and a way to describe the "handle" to that in-memory data in asset path (possibly having to bake a custom asset resolver plugin too). Could ofcourse write everything to disk cache and read from that, not sure how fast that would be...

I created a bug report in the Resolve Beta 19 forum about the uImagePlane not updating the Input texture. If you force a purgeCache() from the 3D Renderer, I could sort of get it to work. Until the render went blank and died on random frames.

It then occurred to me that they might have a real problem on their hands with USD and Hydra Delegates. How are you going to use a GPU Hydra when Resolve/Fusion doesn't release the GPU memory after every frame? When Redshift or VRAY tries to query the VRAM, it's going to come up with 500Mb of available VRAM.

It then occurred to me that they might have a real problem on their hands with USD and Hydra Delegates. How are you going to use a GPU Hydra when Resolve/Fusion doesn't release the GPU memory after every frame? When Redshift or VRAY tries to query the VRAM, it's going to come up with 500Mb of available VRAM.

I guess they have to come up with a solution Can’t hold on to everything when everything doesn’t fit into memory. Same problems are in all softwares, for example Houdini, and they have been solved too.

But given how BMD thinks, I wouldn’t be surprised if the solution is going to be a custom cpu based renderer stuffed in.