Question SSGI does nothing?

Hello, I'm on HDRP 11, with a 1080 card (so no ray tracing).

After activating SSGI in both the HDRP asset and in the default frame settings of the camera, and adding a SSGI component on the volume, I've been unable to get any visual difference (in play mode, with the game view).

The ray tracing options in the volume don't appear, I imagine since I don't have a raytracing-able card.

Are you guys able to make SSGI work, like, at all?

I can't even find a video tutorial for SSGI on youtube...

 

Ah ha, I upgraded my test project to 2021.2 (hdrp 12) and it works!

 

i feel your pain

 

If you have a self-glow object(emission material), it will illuminate surrounding area with SSGI enabled. Light sources such as directional light or point light won't construbute to SSGI...At least this is what I observed...

 

the point light does (it seems in my case)

 

https://forum.unity.com/threads/ssg...enoiser-and-performance.1211346/#post-7744245
BTW I am currently using single realtime reflection probe positioned at the third person controller

 

SSGI...it doesn't do much and as soon as you adjust indirect to do more, the artifacts pop in and if you crank up the quality...the performance tanks...

 

Half resolution is acceptable performance wise but it's noisy... Does DLSS help in reducing the noise?? I had read somewhere on Twitter that to use DLSS with SSGI to reduce the nosiness did u try that??

 

Half resolution denoising or did you uncheck "full resolution"? The latter checkbox really depends on your target resolution. If you're rendering at 2160, rendering the lighting at 1080p isn't going to be too bad. If you're targeting 1080 and you're rendering the lighting at 540p it's gonna look like ass.

I've got it set to full resolution myself. The performance tradeoff is big but it does a great job of darkening shadowed areas.
Here's an off/on comparison for you:



Notice it does almost nothing for the parts in direct light or close to it. You really gotta have some significant shadow in your scene for it to make a difference.