eikonoklastes
Disable Vulkan

Then it is a bug because this persists in karma XPU/CPU. If use the "clone" rendering for a live render the headlight is gone.

Yes this is the same for me. The headlight is always on. Also in karma cpu/xpu.

You have to connect the second output of the backgroundplate node to the second input of the karmarender settings.

Hi Sidefx Team,

I have the following questions regarding the installation of the Hqueue Client.

1. First of all the recommended way to install Houdini software packages has no entry for 19.5 (py 3). It stops at version 19.0.783 py2 for the client, and 18.5.1104 for the server. Is there a reason why is there no entry for the most recent versions?

2. I tried installing the "manually" by downloading the recent production build and selecting the respected Hqueue Server + Client. The Server seems to be working but the Hqueue Client Installer is failing to create a windows service thus the client can not connect with the hqueue server. With the py2 19 version from the launcher, the service entry was there in the windows service entries, and also there was no problem for the client to connect to the server.

I would be very thankful if you could help install Hqueue as I loved using it in the past.

Thank you very much!

spinori
Hi there,

After the last windows update (Version 21H1) I am not able to place any node without getting a "WARNING: Cannot create temporary file. (Permission denied)" error. Do you guys have seen that before? I tried reinstalling Houdini 18.5.672 and a bunch of previous versions without resulting in a fix. Also opening houdini with admin rights does not help.

Thank you very much for your help!

Nevermind I fixed it via deleting the temp folder in the appdata . Maybe something went corrupt there? Anyway the errors are gone in case somebody has the same issue.

Hi there,

After the last windows update (Version 21H1) I am not able to place any node without getting a "WARNING: Cannot create temporary file. (Permission denied)" error. Do you guys have seen that before? I tried reinstalling Houdini 18.5.672 and a bunch of previous versions without resulting in a fix. Also opening houdini with admin rights does not help.

Thank you very much for your help!

robp_sidefx

jsmack

robp_sidefx

Rendering multiple views via several render products?

This is not currently supported in husk, but it's on the radar.

Do you need RFE, or is it as you say "on the radar" already?

Internal RFEs already exist, all good

Thank you very much for the info! Looking forward to seeing something like this in future builds.

Galleryworm
Do you know if the flipbook method will respect rendervars/AOVs as well?

Unfortunately no.. Flipbooks do not include AOVs. In my last thread ( where I basically asked the same question ) somebody suggested that you might be able to render several views per render product. https://www.sidefx.com/forum/topic/76906/ [www.sidefx.com] But I doubt this is possible.

I asked the same question a while ago. I settled using the flipbook render, scaling the viewport to the exact resolution that I need. It is of course a bit of a hassle to set it up, but In my experience it is still by far the fastest scene extraction time. I hope the offline rendering will be more streamlined in the future.

anbt
Thanks for your answer @goldleaf but I can't rename my cameras with the same name, Houdini won't let me, or I am misunderstanding something...

He is referring to the "primitive path" in the usd camera. At default, the path is set to "cameras/$OS". $OS is taking on the node name, but you are able to rename it to shared path so that the camera will be overwritten by the current camera node.

Anybody here has a decent workflow rendering with the usd render-rop? ^^ Is there a way to render unscaled flipbook renderes at a certain resolution. For me they always seem to be scaled screenshots with blocking artifacts.

jsmack
Can you create multiple render products, one for each camera to render with? I think some renderers will render a view for each render product.

Another option would be to render the lightfields in a single pass using a lens shader to create a photomosaic. Karma is the only renderer I know of that supports lens shaders in solaris at the moment though.

Did you succeed in creating a setup like this? Rendering multiple views via several render products? I am sorry to say that I am not 100 percent sure how to do that ^^. I was using render products for creating aov channels, but I never did a setup with multiple products in one rendersetting. Also with the lense shader: Have you succed doing something like this with any renderer? I know technically it is possible ( like doing a stereo renderer but with more views ). Thank you very much!

jsmack
Can you create multiple render products, one for each camera to render with? I think some renderers will render a view for each render product.

Another option would be to render the light fields in a single pass using a lens shader to create a photomosaic. Karma is the only renderer I know of that supports lens shaders in Solaris at the moment though.

Wow, thank you very much these are both great ideas that I did not think would be possible. Especially the render product one. I use redshift for speed purposes, but I could also try Renderman or karma. I will do a set of tests tomorrow.

Dear Houdini Team,

if I enable “Render All Frames With a Single Process” in the USD Render Rop it discards any expressions I have in the rendersettings and only uses the first frame.

I want to switch between 45 cameras per frame ( light-field rendering ) with the expressions ( /Lightfield/cam_`$F%46` ). This is working fine until I activate the single process option which would speed up the rendering enormously though so I really wanted to get it working. When the single process option is enabled it only renders with the first camera.

Also, I tried using the flipbook rendering option ( because the scene initialization is even faster than the usd render rop ) but I could not manage to get the undistorted pixel per pixel beauty pass. It seems like the flipbook render files are dependent on the viewport.

It would be great getting your opinion on this and what you recommend as the fastest rendering option for rendering usd. Rendering with light fields will generate enormous amounts of frames, so scene initialization time reduction is absolutely crucial. Thank you very much!

Is there a recommended way to use rop services? I use a Threadripper 32 Cores and I opted for a pool size of 32 rendering a bunch of cop rop operations in parallel. Confusingly it always runs 63 Jobs in parallel disregarding the pool size and the local scheduler settings.