3Delight and Gaffer 1.5

[Robert Kolbeins]

Hello!

Any updates for 3delight on the horizon?  Like lightgroups aov option?

Thanks,

Robert

[Goran Kocov]

Hi Robert! 

While there are GitHub PRs open for some additional 3Delight features like light groups and capsule support, these are not included in the official build yet. If you'd like to test the new features you can download my custom branch builds - either from the CI actions page (these are the most recent builds, but you need to have a GitHub account to download them) or from the release page (these are slightly older, but you can also find some additional stuff there like shaders and test scenes). 

https://github.com/gkocov/gaffer/actions

https://github.com/gkocov/gaffer/releases

If you have any questions or run into any issues, please feel free to post either here or on the Gaffer Discord channel. 

Thanks!

Goran

[Robert Kolbeins]

Hi Goran

I tried the latest build and it works great.

Added usd light plus a set name onto a light group output.  Super nice.

thanks,

Robert

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[Goran Kocov]

Really glad to hear that. Enjoy using Gaffer and 3Delight! 

[Robert Kolbeins]

Hi Goran

Following your example file 3dl_lights.gfr.

I see you mix interactive with batch in the output node and successfully view through the 3Delight display.  Gaffer doesn't seem to display the lightgroup aov using the ieDisplay while it shows all others Interactive outputs.  Am I missing some magic settings or do I need to use the display and not ieDisplay for lightgroups.

Thanks,

Robert

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[Goran Kocov]

Hi Robert! 

I did a few tests and from what I could tell, it seems that the ieDisplay 3Delight driver runs into a [Dspy::imageOpen] Invalid number of channels! error when 3Delight renders the lightgroups, since they are all treated as additional channels of the same data layer. As a temp workaround, you can set up batch outputs that use the 3Delight idisplay driver (the setup present in the 3dl_lights.gfr file) and render them with the InteractiveRender node instead of the regular Render node. The 3Delight i-display window will pop up, running a progressive refinement render that will react live to changes in the Gaffer scene the same way like when using the interactive ieDisplay driver outputs. Hope this helps. 

Thanks,

Goran

[Ronny Ascencio]

Hello Goran I am wondering if this build can be used  replacing the content of the  actual gaffer 1.5.1.0 i have already installed in my windows? to be able to try the light groups 
or if you have plans to update t 1.5.1  you relace

cheers! 

[Goran Kocov]

Hi Ronny! 

As far as I understood your question, there is no need to copy over files from the custom 3Delight build into the 1.5.1.0 folder. The builds from the actions page - https://github.com/gkocov/gaffer/actions - are based on the main branch, so the latest builds have everything that the 1.5.2.0 release has plus some additional extras (the commits from the 1.6.0.0 development) on top of the added 3Delight features. Just download the latest build from the actions page and run that. 

Goran

[Ronny Ascencio]

Hello Goran I set up the last version of gaffer 1.5.2 and open your file of the light groups and is missing some stuffs 

this is your file :  



and this is my scene:


As you can see there is not a light group filed in my output node  so thats why i am asking how do i need to set up or do i need to do something else? 

cheers!

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[Goran Kocov]

The errors when opening the file are due to you missing the dlTexture_CS shader. You can download it from the same page where you downloaded the 3dl_lights.gfr file - https://github.com/gkocov/gaffer/releases

Regarding the missing output parameters, if I understood your post correctly, you are using the official Gaffer 1.5.2.0 build. As mentioned previously the official builds don't have support for light groups when using 3Delight, so you would need to download my custom build in order to use light groups - https://github.com/gkocov/gaffer/actions (please know that you need a GitHub account to download the CI builds). 

Goran

[Ronny Ascencio]

Hello Goran 
just wondering if lightgroup could work  if i just type for example /lightRig (where all my lights or group of lights live  it will render "lighRig" as a single lightgroup   or what happens if i need to render 3 lights in a single group etc etc 

cheers!

[Goran Kocov]

The lightgroup output parameter supports both render sets and scene graph objects. In most cases you want to use render sets, since that gives you flexibility to group lights and change the set contents without needing to change the output parameters. Check the 3dl_lights.gfr scene for an example of how to use both. 

[Ronny Ascencio]

Thank you Ill try it 

Cheers!