Project features are used to align particle positions to other objects or constrain their motion to the environment.
The following options are available under the Project category:
Projects particles to the closest point in the terrain.
Projects particles to the closest water surface. If no water surface is found above or below a particle, then it will be forcibly killed.
All Project features share the same properties:
Property | Description |
|---|---|
Spawn Only | If enabled, particles will only get projected when they spawn. If disabled, particles will always be projected. This option restricts the movement of the particles over the object they are being projected upon. |
Project Positions | If enabled, projects particle positions to the object they are being projected upon. |
Offset | Only available if Project Position is activated. Allows the addition of an offset to the projected position. Offset is specified in meters. |
Project Velocity | If enabled, projects particle velocity upon the surface that the particle is projected upon. |
Project Angles | If enabled, this option rotates particles and forces them to align themselves to the surface that they are projected upon. Best used with free facing sprites, free facing ribbons or mesh particles. |
Align Axis | Only available if Project Angles is enabled. Specifies which axis of the particle is to be aligned to the surface that the particle is projected upon.
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Align View | Only available if Project Angles is enabled. Specifies if a second constraint is to be set to the other particle axis.
This type of alignment is tentative, meaning that it will not forcibly align the axis as opposed to Align Type. Note that Align View never distorts particles. |
High Accuracy | Performs more expensive computations to place the particle above the surface.
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