Ground Explosion B shelf tool

Creates a large scale explosion, smoke trails, and shockwave that expands forcefully outward and moves rapidly upward.

On this page

Important Nodes
Learning from this example

This shelf tool sets up a sparse pyro simulation of a large scale explosion, smoke trails, and shockwave. These are broken up into two different simulations to give the artist more control. The shockwave is advected by the velocity field from the explosion. It provides a good example of how to use multiple Pyro Burst Source nodes to create good looking explosions and shockwaves as opposed to doing all the sourcing in one node.

Pyro simulation in the viewport. Color space: ACES, Voxels Size: 0.075.

Pyro simulation rendered with Karma. Color space: ACES, Voxels Size: 0.075.

Important Nodes ¶

pyroburstsource

Sourcing for the main explosion is split into three sections, which all create specific shapes in the simulation. These sources all use Pyro Burst Source nodes.

pyroshockwavesoure

The shockwave sourcing also uses this same approach with three separate Pyro Burst Source nodes.

pyroscatterfromburst1

The pyroscatterfromburst1 node controls where the trails will be placed.

pyrotrailpath

The low_spikes1 node controls the shape of the trail paths themselves.

pyrotrailsource1

The pyrotrailsource1 node controls the shape of the source that will be instanced on each trail path.

Learning from this example ¶

To...	Do this
Adjust the trail radius	Adjust the Middle Value and Range Length parameters on the adjust_trail_radius1 node.
Adjust the trail length	Adjust the Output Min and Output Max parameters on the attribremap3 node.
Change the shape of the explosion and shockwave	Adjust the Shape Offset or Offset parameters in any of the Pyro Burst Source nodes to easily modify the shape of the explosion or shockwave.
Adjust shockwave advection from explosion	Dive inside the `pyrosolver_shockwave1` node and adjust the Source Scale parameter for `vel` in the Sourcing tab of the explosion_vel1 node.

Ground Explosion B shelf tool

Important Nodes ¶

Learning from this example ¶

Shelf tools

Using the shelf ¶

Technical ¶