UNiagaraDataInterfaceHairStrands

Hair Strands Asset used to sample from when not overridden by a source actor from the scene.

The source actor from which to sample

The source component from which to sample

Add external torque to the angular velocity and advect node orientation

Add external force to the linear velocity and advect node position

Update the root node position based on the current transform

Update the root node orientation based on the current transform

Attach the node position and orientation to the transform or to the skin cache

Build the groom bounding box

Compute the air drag force

Compute the rest direction

Compute the edge length (diff between 2 nodes positions)

Compute the edge orientation (diff between 2 nodes orientations)

Get the rest position and orientation relative to the transform or to the skin cache

Compute the strands material frame

Get the strand node inertia

Get the strand node mass

Get the strand node orientation in world space

Get the strand node position in world space

Compute the rest local orientation

Compute the rest local position

Eval the skinned position given a rest position

Extract datas and resources

Update the source component

Get the bounding box center

Get the number of strands

Get the strand vertex position in world space

Get the sample state given an index

Get the groom asset datas

Get the world inverse

Get the world transform

Check if we have a global interpolation

Init the samples along the strands that will be used to transfer informations to the grid

Check if the component is Valid

Check if we need a rest pose update

Check if we need or not a simulation reset

Project the angular spring material

Project the bend rod material

Project the distance spring material

Project the static collision constraint

Project the soft collision constraint

Project the stretch rod material

Reset the bounding box extent

Reset the point position to be the rest one

Setup the angular spring material

Setup the bend rod material

Setup the distance spring material

Setup the soft collision constraint

Setup the stretch rod material

Solve the angular spring material

Solve the bend rod material

Solve the distance spring material

Solve the static collision constraint

Solve the soft collision constraint

Solve the stretch rod material

Update the node angular velocity based on the node orientation difference

Update the node linear velocity based on the node position difference

Update the strands material frame

Update the node position and orientation based on rbf transfer

Report the node displacement onto the points position

Allows the generic class defaults version of this class to specify any dependencies/version/etc that might invalidate the compile.

Copy one niagara DI to this

Destroys the per instance data for this interface.

Determines if this DataInterface is the same as another.

GPU simulation functionality

UNiagaraDataInterface Interface

Returns the delegate for the passed function signature.

Initializes the per instance data for this interface.

Returns the size of the per instance data for this interface.

Ticks the per instance data for this interface, if it has any.

Subclasses that wish to work with GPU systems/emitters must implement this.

Methods that operate on an instance of type FNiagaraDataInterfaceParametersCS*, created by the above CreateComputeParameters() method

Constructs the correct CS parameter type for this DI (if any).

UObject Interface

Name of the bone angular acceleration

Name of the bone angular velocity

Name of the bone inverse transform

Name of the bone linear acceleration

Name of the bone linear velocity

Name of the world rotation

Name of the bone transform

Name of bounding box buffer

Name of the bounding box offsets

Name of the curves offsets buffer

Name of the points positions buffer

Deformed center of all the position

Deformed center of all the roots

Deformed position of the triangle vertex A

Deformed position of the triangle vertex A

Deformed position of the triangle vertex A

Param to check if the roots have been attached to the skin

Param to check if the simulation is going to be run in local space

Rbf sample weights

Name of the number of strands

Params scale buffer

Boolean to check if we need to rest the simulation

Name of the nodes positions buffer

Rest center of all the position

Rest center of all the roots

Rbf Sample rest positions

Rest position of the triangle vertex A

Rest position of the triangle vertex B

Rest position of the triangle vertex C

Param to check if we need to update the rest pose

Root barycentric coordinates

Number of samples for rbf interpolation

Name of the strand size

Name of the world inverse transform

Name of the world rotation

Name of the world transform