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By Design
Votes
0
Found in [Package]
13.1.3
Issue ID
1387668
Regression
No
A Spawn Node's Block properties affect another Spawn Node's visible particles
Reproduction steps:
1. Open the user's attached "Testbed.zip" project
2. Open the "Scene" Scene
3. In the Assets open the "New VFX" Visual Effect Graph
4. Change the Count property of the "Spawn system (1)" to 10
5. Change the Count property of the "Spawn system" to 5
6. Observe the Scene
Expected result: Both Spawn Nodes spawn visible particles based on the Count property of each Spawn Node's Block
Actual result: Both Spawn Nodes spawn visible particles based on the Count property of the "Spawn system" Block
Reproducible with: 10.8.0 (2020.3.25f1), 12.1.2 (2021.2.7f1), 13.1.3 (2022.1.0b2)
Could not test with: 7.7.1 (2019.4.34f1) (Missing required context for Visual Effect Graph)
Notes:
- The "Spawn system (1)" spawns particles based on its Block's Count property, but only the amount of particles in the Count property of the "Spawn system" Block is visible.
- After reproducing the issue, you can select "New VFX" GameObject in the Hierarchy window and see that some particles are invisible.
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Resolution Note:
For this specific issue, the problem was actually in user code, we were trying to render the second VFXSystem with the rendering draw call of the first one.
In VFXPass.cs (1387668_Testbed\Assets\Scripts\VFXPass.cs), replace
ctx.cmd.DrawRenderer(VFXPass.Renderers[i], materials[j]);
By
ctx.cmd.DrawRenderer(VFXPass.Renderers[i], materials[j], j);