Expand from Objects shelf tool

Creates a force that pushes fluid away from the selected object.

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Overview
Using Expand from Objects

Overview ¶

This shelf tool uses a FLIP Source node to convert the selected geometry into a divergence volume that can be used to exert an expansive force on a fluid system. This is useful for manually creating and controlling explosions.

Using Expand from Objects ¶

To...	Do this
Create a fluid container	See Smoke Container or Pyro Container.
Fill a fluid container	See Source from Surface, Source from Points, and Source from Volume.
Create an expansion force	Select the object you want to turn into an expansion field. On the Populate Containers tab, click the Expand from Objects tool. Select the fluid container you want to expand in and press `Enter`.
Control the amount of expansion	In the DOP network, find the Volume Source node importing the divergence field (named `source_divergence_from_object`). Use the Scale parameter on the divergence import to control the amount of expansion. You can keyframe this value to delay and/or limit the expansion time, pulse the expansion, etc. Sometimes very high values may be necessary (100+) to have visible effects.

Expand from Objects shelf tool

Overview ¶

Using Expand from Objects ¶

Shelf tools

Using the shelf ¶

Technical ¶