UParticleModuleRequired

Alpha channel values larger than the threshold are considered occupied and will be contained in the bounding geometry.

If true, the emitter will be delayed only on the first loop.

If true, recalculate the emitter duration on each loop.

If true, select the emitter delay from the range [EmitterDelayLow..EmitterDelay]

If true, select the emitter duration from the range [EmitterDurationLow..EmitterDuration]

If true, kill the emitter when it completes

If true, kill the emitter when the particle system is deactivated

Ensures that movement generated from the orbit module is applied to velocity-aligned particles

More bounding vertices results in reduced overdraw, but adds more triangle overhead.

Override the system MacroUV settings

If true, removes the HMD view roll (e.g. in VR)

Whether to scale the UV or not - ie, the model wasn't setup with sub uvs

If true, gpu simulation positions are offset to support double precision vectors.

The array of burst entries.

If true, the EmitterTime for the emitter will be calculated by modulating the SecondsSinceCreation by the EmitterDuration.

If true, update the emitter in local space

If true, use the MaxDrawCount to limit the number of particles rendered.

Texture to generate bounding geometry from.

Delay-related.

The low end of the emitter delay if using a range.

How long, in seconds, the emitter will run before looping.

The low end of the emitter duration if using a range.

The number of times to loop the emitter. 0 indicates loop continuously

Normal generation mode for this emitter LOD.

SubUV-related.

Local space position that UVs generated with the ParticleMacroUV material node will be centered on.

World space radius that UVs generated with the ParticleMacroUV material node will tile based on.

General.The material to utilize for the emitter at this LOD level.

The maximum number of particles to DRAW for this emitter.

The distance at which PSA_FacingCameraDistanceBlend is fully PSA_FacingCameraPosition

The distance at which PSA_FacingCameraDistanceBlend is fully PSA_Square

Named material overrides for this emitter.

When EmitterNormalsMode is ENM_Cylindrical, particle normals are created to face away from the cylinder going through NormalsSphereCenter in the direction NormalsCylinderDirection.

When EmitterNormalsMode is ENM_Spherical, particle normals are created to face away from NormalsSphereCenter.

The method to utilize when burst-emitting particles

The number of times to change a random image over the life of the particle.

The amount of time (particle-relative, 0.0 to 1.0) to 'lock' on a random sub image 0.0 = change every frame 1.0 = select a random image at spawn and hold for the life of the particle

The screen alignment to utilize for the emitter at this LOD level.

The sorting mode to use for this emitter.

Spawn-related.The rate at which to spawn particles

The number of sub-images horizontally in the texture

The number of sub-images vertically in the texture

Controls UV Flipping for this emitter.

Initializes the default values for this property

Add all curve-editable Objects within this module to the curve editor.

Helper function used by the editor to auto-generate LOD values from a source module and a percentage value used to scale its values.

Retrieve the ModuleType of this module.

Returns true if the module is valid for the provided LOD level.

For Cascade.

Called before destroying the object.

Called to finish destroying the object.

Called to check if the object is ready for FinishDestroy.

Called when a property on this object has been modified externally

Called after the C++ constructor and after the properties have been initialized, including those loaded from config.

Do any object-specific cleanup required immediately after loading an object.

This is called when a property is about to be modified externally

Handles reading, writing, and reference collecting using FArchive.