Hi!

I was trying to save FBX with the frame number that corresponds to the UDIM tile (1001, 1002, 1003). I tried using $F in the file name but that trick seems to only work on a File Sop and not a rop_fbx.

I would like to know if there's a way I could use a detail expression to add the number in the file name.

-Olivier

maybe try Wedge ROP with as many iterations as you have unique UDIM numbers and for each wedge blast all other udims

I was able to have an animation where frame 1001 blast all but UDIM 1001, etc. The problem I have is that the file naming doesn't use the frame number when using FBX_rop yet it works with a file cache sop.

With FBX_rop using the path $HIP/geo/woodfloor_$F I get one file:
woodfloor_1000.fbx

with a file cache sop using the path $HIP/geo/woodfloor_$F.bgeo I get 3 files:
woodfloor_1000.bgeo
woodfloor_1001.bgeo
woodfloor_1002.bgeo

-Olivier

olivierth
I was able to have an animation where frame 1001 blast all but UDIM 1001, etc. The problem I have is that the file naming doesn't use the frame number when using FBX_rop yet it works with a file cache sop.

With FBX_rop using the path $HIP/geo/woodfloor_$F I get one file:
woodfloor_1000.fbx

with a file cache sop using the path $HIP/geo/woodfloor_$F.bgeo I get 3 files:
woodfloor_1000.bgeo
woodfloor_1001.bgeo
woodfloor_1002.bgeo

-Olivier

So don't use $F. Like tamte said, use the wedge rop which sets a different variable for the evaluation loop. I think it's $WEDGE, but double check the documentation to be sure.

Ah! I thought my version of Houdini did not have that node.

I'm trying it out like I saw in a tutorial but I'm confused.

I'm using a test scene where I want the copy transform to change its copy amount at each wedge. It's not working. Can you guys tell me if my screenshot makes sens?

Thanks for the help.

-Olivier