VFX particles and WEbGL Not Working?

Unity Engine
1

HI followed this tutorial [ https://www.youtube.com/watch?v=IVfDj8UYoj8](http:// https://www.youtube.com/watch?v=IVfDj8UYoj8)

basic VFX overvierw and I can not get it working in WebGL ? look super in Unity editor

found this https://answers.unity.com/questions/1631210/mesh-particle-effects-are-not-showing-up-in-webgl.html
but Not using Me4sh for particles and can not find the mesh GPU instancing in unity 2019.3.0f6

any help most appeciated

2

Hi thomas4d,
I have the same problem. In the unity editor and Windows build everything works fine but in the WebGL build nothing appears.
Then, I could now isolate the problem using the default template project and add the simple swarm particle systems.
In the firefox browser console, there is a hint, that the shaders cause the error (see below). However, I could not find how to change the shader in VFX Graph.
I submitted a bug report to Unity (http://fogbugz.unity3d.com/default.asp?1218132_v8a55fatsfrbss0s). Let’s see if they send an answer.

WARNING: Shader b92c9dd3-68fc-44e9-874a-3d843afc01f2:8:48949
Unsupported: ‘Hidden/VFX/TestVFX/System 1/Output Particle Quad’ - Pass ‘’ has no vertex shader
b92c9dd3-68fc-44e9-874a-3d843afc01f2:8:48949
WARNING: Shader b92c9dd3-68fc-44e9-874a-3d843afc01f2:8:48949
Unsupported: ‘Hidden/VFX/TestVFX/System 1/Output Particle Quad’ - All passes removed
b92c9dd3-68fc-44e9-874a-3d843afc01f2:8:48949
WARNING: Shader b92c9dd3-68fc-44e9-874a-3d843afc01f2:8:48949
Did you use #pragma only_renderers and omit this platform?
b92c9dd3-68fc-44e9-874a-3d843afc01f2:8:48949
ERROR: Shader b92c9dd3-68fc-44e9-874a-3d843afc01f2:8:48949
Shader is not supported on this GPU (none of subshaders/fallbacks are suitable) b92c9dd3-68fc-44e9-874a-3d843afc01f2:8:48949
WARNING: Shader b92c9dd3-68fc-44e9-874a-3d843afc01f2:8:48949
Unsupported: ‘Hidden/VFX/TestVFX/System 1/Output Particle Quad’ - Setting to default shader.

3

any progress on this? Afaik compute shaders dont work for webGL yet in unity… and vfx graph heavily relies on compute shaders

4

I’ve been looking for that as well, there seems to be progress but I couldn’t find anything recent that would make me hope this will be available soon. That would be so freaking awesome to use the VFX graph in WebGL…

5

It seems that VFX Graph require Compute Shaders support. WebGL doesn’t support compute shaders…

1 Like
6

I’m in a similar boat, where my shaders use compute shaders. I wonder if they’ll be upgrading WebGL version in the future.

7

WebGPU will support it - but I wouldn’t hold your breath for WebGL. Looking forward to selecting WebGPU from build options, though given the tech is still a “working draft” I don’t expect to see that for some time (as in years), since I don’t think many resources will be invested in it until the spec is finalized. Even then, it won’t be available in the editor overnight. I’d love to be mistaken :smile:

1 Like
8

It’s not in the hands of Unity.
The WebGL API isn’t and won’t support it.
At one of the latest WebGL/WebGPU community meetups, the WebGL and WebGPU working group members told that it would be a feature of WebGPU and won’t be supported in WebGL

3 Likes
9

Thank you for this. I kind of thought it would take a few years, but telling me it’s coming in WebGPU gives me more to look out for. In the mean time I will make less performant versions of my render code with scripting symbols, my particles and grass will take a hit haha.