Polaroid: Pyro Source Spread + Advection

Setting up Pyro Source Spread

Setting up Pyro Source Spread. This node requires a temperature attribute which I create in the Temp wrangles.
Transferring the Spread to the Polaroid Geo, then deleting by temperature attribute

Setting up Pyro

Here I am deleting a range of the temperature attribute. I will use this for scattering points for volume rasterization
Here I am making a custom velocity for each point by subtracting the points from the center for all the points to push out, I also mix in some curl noise for more variation.

Setting up the Particle Advection

Using a expression from Voxyde I use this to blend the particles velocity to remove stepping from the first second of the simulation

Look Dev Breakdown

Fill
Back
Key
Back (Particles Only)

References:

 

Inspiration: Zach Jantz 

 

Getting started with Pyro Source Spread: Deborah Fowler & Zach Jantz

 

Using Pyro Solver: Paul Esteves 

 

Fix Particle Stepping: Voxyde VFX 

 

Vector Operations: Voxyde VFX 

 

Lighting: Stepan HKA