I tried to search, but could find any

[calm cove]

According to my experience this seems entirely unnecessary

But I'm curious how you're using the method in that situation

Are you getting the interpolated SH in script and then setting particle colors to that?

[lavish blade]

yeah

[calm cove]

Which unity version and render pipeline is it

[heady sluice]

The default lit shader will sample APV automatically, if you're needing to make a custom shader APV compatible I'd check the default lit source code

[lavish blade]

It was working on Unity 2022.3.50 URP, and it still work on Unity 6 URP, but only with standart Light Probes

[heady sluice]

What shader do your particles use?

[lavish blade]

URP/Particles/Lit

[calm cove]

That shader does sample both light probe groups and APVs for ambient light

[heady sluice]

what does it look like?

it might be a different issue

[lavish blade]

hmmm, maybe I do something wrong, I will try to figure it out, and if I will get any information, I will text here

[lavish blade]

just blank white

or if I use Blend Probes in particle system, it will apply one probe for all particles

[heady sluice]

Make sure you use blend probes in the particle system renderer

Assuming the project uses apv instead of probe groups I don't see why it shouldn't just work

APV works differently to old probes, each pixel samples probes independently, even while set to blend probes

[heady sluice]

ie this should only be true when using legacy probes

APV should just work in this scenerio, with no custom scripting at all

[calm cove]

Let me correct myself, the URP Lit Particle shader does not use APVs
At all as far as I can tell

[lavish blade]

Oh, okay, I figured it out, now it does work!

[heady sluice]

That's odd. Why?

[heady sluice]

Oh good, did you have to do anything other than set it to blend probes?

[calm cove]

Either I'm overlooking something or it simply isn't implemented

Lit shader vs Particle Lit shader

[lavish blade]

it in fact does work, they are lit differently

[heady sluice]

did you set blend probes on the particle system rendering section?

[calm cove]

Yes

[lavish blade]

yeah, but I think this is my stupidity, I just saw it does not work with my particles (because of my obsolete script for probes), tried to make a new scene with new particle system and simply forgot that it uses unlit shader by default 😅

[heady sluice]

Weird.

[lavish blade]

By the way, according to this, GPU instanced meshes should use APV just fine without additional code, right?

[heady sluice]

yep!

[lavish blade]

Cool!

[heady sluice]

might need to enable blend probes if you use RenderMeshInstanced or something irrc but it generally just works

[calm cove]

The real victory here is that you don't have to loop probes and particles in a script anymore