Community
Arnold for Houdini Forum
Rendering with Arnold in Houdini and Solaris using the HtoA plug-in.
cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

Multiple uv sets, packed geometry

4 REPLIES 4
SOLVED
Reply
Message 1 of 5
zenop
839 Views, 4 Replies

Multiple uv sets, packed geometry

Hi,


Is it possible to use multiple UV sets in htoa on packed geometry?


Currently I have a secondary uv set named "uv2". If I use "uv2" in the uv set parameter of the image shader it only picks it up if the geometry is unpacked. I would expect the vertex attributes to be carried the same way as the point attributes when the geometry is packed?


How should I be doing this?


Thanks,

Zeno

Tags (2)
Labels (2)
4 REPLIES 4
Message 2 of 5
julian.hodgson
in reply to: zenop

This should work, for example the included file has two uvsets, the geometry is packed, but it's unpacked at render time and uses the uv2 set.

packed_uv.zip

Do you have a different situation?

Message 3 of 5
zenop
in reply to: zenop

Hi Julian,


Looking into this some more. It does work when using your method. However, when I export it through an alembic rop & load it back in, it doesn't pick up the uv2 set. I didn't change any settings in the alembic rop/import.


Any idea why this could be happening?


Zeno

screenshot-2021-02-16-095251.png

,

Hi Julian,


Your example does work. I will try and replicate it since it doesn't work on my end where it's read through an abc cache.


Will investigate, thanks for the working example.


Zeno

Message 4 of 5
Anonymous
in reply to: zenop

set Face sets to Save All Groups As Face Sets in rop_alembic/Geometry

Message 5 of 5
julian.hodgson
in reply to: zenop

For the alembic, you need to specify the extra uv set when exporting e.g.

screenshot-2021-02-16-at-180148.png

Can't find what you're looking for? Ask the community or share your knowledge.

Post to forums