Forums Technical Discussion UDIM - Bake texture ROP - bug

UDIM - Bake texture ROP - bug

   1183   4   1
User Avatar
papsphilip
Member
385 posts
Joined: July 2018
Offline
 
It seems there is some limitation to what udims the bake texture rop can handle.
Udims for example with index 1065-1075 came out black.
When i moved them to 1001-1011 everything was fine.
Also if i skipped a tile 1065,1066 and then 1068 - i would also get a black texture for 1068

Is this a known restriction or a bug?
 Report
User Avatar
dlee
Staff
427 posts
Joined: Sept. 2016
Offline
 
Sounds like a bug, though in my quick test (see attached) it seems to work.
Can you file a bug with your scene please?

Attachments:
bakeudim.hip (190.6 KB)

 Report
User Avatar
papsphilip
Member
385 posts
Joined: July 2018
Offline
 
i have recreated the issue in a new hip file.
By the way the file you uploaded throws a warning for unrecognized parameters

Here is my hip file
Edited by papsphilip - Sept. 30, 2021 09:59:29

Attachments:
Capture.JPG (43.6 KB)
baketextures_simple.hip (2.1 MB)

 Report
User Avatar
dlee
Staff
427 posts
Joined: Sept. 2016
Offline
 
Hi. You can ignore the warnings - it's likely due to me having saved .hip in different version of Houdini than yours (I was on 18.5).
Anyway, I noticed that in your file, there are faces that are beyond valid UDIM tile range (u coordinates starting at 14.0 for example). To be within UDIM spec, you must layout UVs so that u coordinates are within 0~10 range.
 Report
User Avatar
papsphilip
Member
385 posts
Joined: July 2018
Offline
 
dlee
Hi. You can ignore the warnings - it's likely due to me having saved .hip in different version of Houdini than yours (I was on 18.5).
Anyway, I noticed that in your file, there are faces that are beyond valid UDIM tile range (u coordinates starting at 14.0 for example). To be within UDIM spec, you must layout UVs so that u coordinates are within 0~10 range.

So there is no limit on v but u must be 0-10
i am on 18.5.408, there was an empty top network
 Report
  • Quick Links