Houdini 21.0 Shelf tools

Synchronized Ground Shockwaves shelf tool

Creates a medium scale multi-shockwave simulation with synchronized start frames.

On this page

This shelf tool sets up a sparse pyro simulation of multiple medium scale shockwaves that expand out from points scattered around world origin, and go off at the same time.

Pyro simulation in the viewport. Color space: ACES, Voxels Size: 0.035.
Pyro simulation rendered with Karma. Color space: ACES, Voxels Size: 0.035.

Important Nodes

pyroburst_shockwave1

The pyroburst_shockwave1 creates the source points for the shockwave simulation.

pressure_disturbs1

The pressure_disturbs1 inside the pyrosolver1 is responsible for breaking up bulbous shapes. You can use the Strength parameter on this node to create stronger breakups. To change where the breakup happens, use the Control Range parameter on the Control tab.

Learning from this example

To...Do this

Change position of shockwaves

Use the Translate parameter on transform1 node.

Create more shockwaves

Increase Force Total Count parameters on scatter1. You can also change the Global Seed parameter to change the distribution of the shockwaves.

Adjust the spread of shockwaves

Increase the Uniform Scale parameter of circle1 to spread the shockwaves further apart.

Shelf tools

Using the shelf

  • Customize the shelf

    How to change the look of the shelf, change and rearrange its contents, and create your own shelf tools.

Technical