Enabling Fluid-Object Collision

By default, objects are not recognized as obstacles by RealFlow | 3ds Max, but they can also be used as filling containers or masks to delete particles in certain areas.

RFCollider

In order to tag an object as an object a "RFCollider" world-space modifier is required. The "RFCollider"

• has to be attached to an object to take the geometry into account
• defines the object's physical properties such as friction, stickiness or bounciness
• is necessary if you want to use an object as a mask to delete particles
• should not be applied if an object should only act as a filling container.

To apply a "RFCollider" follow these steps:

• Add an object and keep it selected.
• Go to Modify > World-Space Modifier > RFCollider (WSM).

It is possible to apply a "RFCollider" to all the selected objects clicking on the "RFCollider" button on RealFlow | 3ds Max toolbar or menu.

RFVolume

The "RFCollider" creates an internal representation of an object - the collision geometry. The "RFVolume" world-space modifier is used to adjust and refine this collision geometry. The "RFVolume"

• provides settings like "Cell Size" or "Collision Geometry Detail"
• lets you define whether the object should be solid inside or outside or if it is a single-sided shell
• should also be applied if you want to use an object as a filling container or as a mask to delete particles.

To apply a "RFVolume" follow these steps:

• Add an object and keep it selected.
• Go to Modify > World-Space Modifier > RFVolume (WSM).