VfxPhysicsFollowTerrainModifier

Inheritance 1 ancestor · 14 siblings

VfxPhysicsModifierBase

Class Documentation

A physics modifier that keeps the particles at a fixed height above the ground. It runs on each step after the integration. It reads the terrain height, sets the particle's world height to that height plus HeightOffset, and moves the particle's position in its reference frame by the same amount.

The correction is a displacement, so it gives the particle no vertical velocity. A particle that walks over a slope follows the slope, and its other motion continues unchanged.

Properties

0xc3c071f0

Flag = false

Documentation Edit documentation

Where the terrain height is read. When set, the height is read once per step at the emitter's position and used for every particle. When clear, it is read per particle at the particle's own world position.

HeightOffset

Embed<VfxFloatDynamicProperty> = { "Float": {} }

Documentation Edit documentation

Height above the terrain, in world units, as a float driver value evaluated on every step. Required: if the driver is null, the modifier does nothing.