Question How to render VFX Graph behind everything else in the scene?

Morning.

So I didn't take the time to fully dig into this , but from what I quickly get I'm not sure that you can render "Transparent" before opaque with SRP projects.

I will ask my colleague who knows better about SRP on this subject.

But you can “Trick” the depth of your Transparents particles in “Shader Graph”.
I’m not sure that it’s the ideal approach and I will try to come up with the most “performant”
way later on.

So:

• Create a VFXGraph , make sure its transforms are reset (0,0,0) and attach it to the Camera.
  
  
• In VFXGraph, set a Position with an ‘ArcSphere Block” to set the position on the surface of a Sphere.
  
  
• Change the Spawn to “Single Burst” and choose your number of Stars.
  
  
• Make sure that your “Capacity” is coherent with your Spawn Number.
  
  
• Get rid of the Lifetime so that the Particles never die.
  
  
• Add a “Set Size” and Randomize your “Stars” size
  
  
  
  You should now see Particles on a Sphere:
  
  
  
  • Create a Shader Graph and turn on “support VFX graph” in the Graph Settings
  • Still in the “Graph Settings”-> “Surface Options” turn on the “Depth Offset”.
  • Now Set up your Shader Graph and “Expose” the needed property.
• 
• Apply you "Shader Graph" to your VFXGraph system.
  
  
  You should now have Particles on a Sphere with a custom "Shader Graph" apply on them:
  

To finish you can Now play with the "Depth Offset" float to fake the "Depth" of your Particles.
By doing so you should have the effect you're looking for.

 

Here what it looks like to play with the "Depth Offset":


Hope this solution help.
Have a great day

 

Hello @CPULL,

To be able to see this field, make sure the "Experimental Operators/Blocks" is enabled in the Visual Effect Preferences.