VFX Quick Tip: How to Animate Particles Through Custom Vertex Data

You can use the the custom data module in a particle system to drive data to alter our shader over a particle's lifetime. In this instance we are using the third channel from our UV node to drive a simple subtraction dissolve for our particles to give the splat a better end.

How to Animate Particles Through Custom Vertex Data

1. Add UV node and split the channels in shader
2. Subtract the unused UV B Channel from the texture and plug it into Alpha
3. Go back to effect and enable Custom Vertex Streams under the render module
4. Enable Custom Data in the effect and choose vector from the drop down under Custom1
5. Change number of components to 1 and change the data type to "Curve"
6. Add a Custom1.x vertex stream in the render module
7. Adjust curve as desired!

‍Want to stay in touch with our studio as we craft world-class real-time VFX? Follow Beyond-FX on Twitter, Instagram, Facebook, YouTube, Twitch, & TikTok!

‍