Legacy / Particles / Additive shader not behaving the same after installing Shapes

trapp martin

3 years ago
updated 3 years ago
Under Review

We are using URP and have a few materials which using Legacy Shaders / Particles / Additive shader.

The problem is that the appearance of these materials are not the same after installing Shapes or if these Materials imported into another project using Shapes asset.

Please see the pulsing circles on the following photos.

1. Original appearance:

2. After Shapes installed:

Isn't the problem that it should use some kind of mixed Import State so it can handle both legacy and URP shaders?

Mixing URP and legacy shaders alone is not a problem. It only causes trouble after installing your asset.

First we checked with version 3.2.3 and still exists in 4.0.2.

Thank you for your hard work!

Edit:

By the way, the problematic scene is totally independent from the one where we use Shapes. Is it possible to turn off the effects of Shapes programmatically in scenes where we do not need it?

Reporting a bug? please specify Unity version:

2019.4.20f1

Reporting a bug? please specify Shapes version:

4.0.2

Reporting a bug? please specify Render Pipeline:

URP

Replies 3

Oldest first
Newest first Oldest first

Freya Holmér creator

3 years ago
Under Review

hm, this sounds like the shapes render pass somehow changes the way the rest is rendered, or there's a broken import somehow. No clue why this would happen :c

Right now there's no way to disable the shapes render pass on a per-scene basis (I also don't even know if this is possible in URP, I'd have to look into it)

Does the same behavior still happen even if you do a clean reinstall?

Reply Link

3 years ago

Thank you for your answer!

We tried a clean reinstall but did not solve the issue.

Actually we have just discovered that not only Legacy Additive shaders affected with the issue but even Sprites-Default shader looks different.

Please see again my previous screenshots:

- There is a film grain overlay FX on those scenes which is barely visible.

- Look how stronger this noise became on the second screenshot.

That analog film noise uses the standard Sprites-Default shader. We cannot even touch that. It seems like its alpha channel affected somehow.

Even those red blurry spots in the background became a bit stronger. That one is using URP / Paritcles / Unlit shader.

looks like it might be the URP shader feature that somehow affects everything else in the chain. not sure why it would do that. did something change in the URP ForwardRenderer?