Jeff Budsberg

hey all, I'm experimenting with file layering.. eg. save out a static base file (UVs, etc) and save a second deformation file (animated positions, normals, etc).


In SOPs, I think I understand the workflow for generating the static (and sparse-data deformation) ABC/USDC files. However, when I read the resulting files in, I'm not sure I understand how to combine the files correctly.

questions:
1) In SOPs, Alembic Read has a layering multiparm, but the USD File Import Does not. Is there a way to apply the deformation_layer.usdc to the static.usdc in SOPs?

2) In LOPs I'm not sure if I'm doing this correctly, but chaining USDC sublayers seems to work. If I do the same for ABC, the SceneView is empty (which indicates we're losing the static USDC prim)

Any suggestions? thanks!

Do handles work in Composite View? I created an example to illustrate what I'm running into (HIP attached, I'm in 21.0.700).

I can bind a Pivot handle to a Float Vector 2, but that has issues:
* only works in SOP context, not Composite View (very frustrating to jump back and forth)
* unable to drag the point in both x&y (only one direction at a time)

I was hoping for something similar to Nuke's float2 knob (see GIF). am I missing something?

thanks!

Hi all,
Sorry for the late reply! This post slipped past me.

I typically update the example file prior to the OpenVDB Course at Siggraph and will likely do so again this year. Are there topics that you would like me to cover or tools/features that need examples?

Just opened the file with Houdini 20.5 with OpenVDB 11; on quick inspection the examples work as expected, but let me know if anything is broken or needs clarification.

best,
Jeff