Question URP VFX Graph issues

Hi @AASCENDED ,

In Initialize, open your bounds and make sure your Bounds position is set to 0,0,0.

Decals require a depth texture; see if enabling it in your URP asset or forcing it on the camera fixes your issue.

See if 1) fixes your issue. A few other things to consider, if you are doing raycasting, you can probably also get RaycastHit.normal and use that to offset manually your particles.

Another issue to consider is the orientation of your particles. In Image 4, your particles are trying to orient to the camera, which can make them clip through the surface. You can consider using an orient fixed axis block and plug in the normal you got from the raycast so the particles will orient along the surface of what you hit and not try to rotate on all axes to face the camera.


Hope this helps!

p.s. would recommend posting Visual Effect-related questions here in the VFX forum to ensure we can see it and others having similar questions can have an easier time finding the answer.

 

Hey @thiskidcalledtom ,

Nice image/video combo, makes it easier to see what's up. I think your VFX bounds might not be visible by the main camera, which will make the effect disappear. Try the suggestions here and see if that fixes it.

On a side note, I would recommend looking into sending events with event attributes; you can have 1 VFX for all your decals and then via script send the exact position where each hit should spawn (you can also send the orientation, for example, to orient particles based on the hit normal if you are raycasting for the hit point). It's a more efficient way of using the VFX Graph than spawning multiple instances of it, and can allow you to pass some helpful data to your graph (position/normal of what you hit, maybe change the color or parts of the effect based on the surface type hit, etc.)