Hello,
when working with Renderman snapshots create black thumbnails, it seems that the snapshot tool uses the color channel to create the thumbnail. Is there a way to use Ci instead of color?
thanks
Martin
Snapshots with Renderman
1297 8 1-
- sanostol
- Member
- 575 posts
- Joined: Nov. 2005
- Offline
-
- robp_sidefx
- Staff
- 491 posts
- Joined: June 2020
- Offline
-
- Dan_Andersen
- Member
- 12 posts
- Joined: June 2018
- Offline
-
- robp_sidefx
- Staff
- 491 posts
- Joined: June 2020
- Offline
-
- robp_sidefx
- Staff
- 491 posts
- Joined: June 2020
- Offline
-
- Dan_Andersen
- Member
- 12 posts
- Joined: June 2018
- Offline
Hi Rob. There's no easy way for me to extract a file from our network for upload and regarding testing in a more recent H19.5 build, I'm told that can't happen until there's a Pixar sanctioned RenderMan build ready. Oh well.. ![](/static/djangobb_forum/img/smilies/smile.png)
Anyway, to narrow it down a bit I can reproduce the issue with these steps:
- 1) Create "Cube"-node
- 2) Create "RenderMan Render Settings"-node
Snapshots with the displayFlag on the cube look correct, while snapshots with the displayFlag on the Render Settings show the cube as pure white.
If I disable the "Include AOVs"-option on the "Display Options"-tab of the Render Settings node snapshots look correct.
![](/static/djangobb_forum/img/smilies/smile.png)
Anyway, to narrow it down a bit I can reproduce the issue with these steps:
- 1) Create "Cube"-node
- 2) Create "RenderMan Render Settings"-node
Snapshots with the displayFlag on the cube look correct, while snapshots with the displayFlag on the Render Settings show the cube as pure white.
If I disable the "Include AOVs"-option on the "Display Options"-tab of the Render Settings node snapshots look correct.
-
- sanostol
- Member
- 575 posts
- Joined: Nov. 2005
- Offline
Hello, sorry for the delayed response. We use houdini 19.5.640 and Renderman 25.2.
Snapshots work until You view the Renderman Lop, as it sets the Color AOV to ci, if You view the node before the snap shots work again, and it is not really the snap shot, it is the thumbnail. The actual Snapshot that opens is correct and You can see that the Aov is called ci instead of color
Martin
Snapshots work until You view the Renderman Lop, as it sets the Color AOV to ci, if You view the node before the snap shots work again, and it is not really the snap shot, it is the thumbnail. The actual Snapshot that opens is correct and You can see that the Aov is called ci instead of color
Martin
-
- robp_sidefx
- Staff
- 491 posts
- Joined: June 2020
- Offline
Dan_Andersen
snapshots with the displayFlag on the Render Settings show the cube as pure white
Last check: are you using OCIO profiles? This is really starting to sound like an issue that got fixed in 19.5.768, whereby if a snapshot was taken of an RGB (not RGBA) image, and OCIO was enabled, then the thumbnail could go white/black.
In such an environment, I can reproduce the issue (i.e., with 19.5.640).
-
- Dan_Andersen
- Member
- 12 posts
- Joined: June 2018
- Offline
-
- Quick Links