Constructor
new InstanceNode( count : number, instanceMatrix : InstancedBufferAttribute | StorageInstancedBufferAttribute, instanceColor : InstancedBufferAttribute | StorageInstancedBufferAttribute )
Constructs a new instance node.
| count |
The number of instances. |
| instanceMatrix |
Instanced buffer attribute representing the instance transformations. |
| instanceColor |
Instanced buffer attribute representing the instance colors. Default is |
Properties
.buffer : InstancedInterleavedBuffer
A reference to a buffer that is used by instanceMatrixNode.
.bufferColor : InstancedBufferAttribute
A reference to a buffer that is used by instanceColorNode.
.count : number
The number of instances.
.instanceColor : InstancedBufferAttribute
Instanced buffer attribute representing the color of instances.
.instanceColorNode : Node
The node that represents the instance color data.
Default is null.
.instanceMatrix : InstancedBufferAttribute
Instanced buffer attribute representing the transformation of instances.
.instanceMatrixNode : Node
The node that represents the instance matrix data.
.isStorageColor : boolean
Tracks whether the color data is provided via a storage buffer.
.isStorageMatrix : boolean
Tracks whether the matrix data is provided via a storage buffer.
.previousInstanceMatrixNode : Node
The previous instance matrices. Required for computing motion vectors.
Default is null.
.updateType : string
The update type is set to frame since an update
of instanced buffer data must be checked per frame.
Default is 'frame'.
- Overrides: Node#updateType
Methods
.getPreviousInstancedPosition( builder : NodeBuilder ) : Node.<vec3>
Computes the transformed/instanced vertex position of the previous frame.
| builder |
The current node builder. |
- Returns: The instanced position from the previous frame.
.setup( builder : NodeBuilder )
Setups the internal buffers and nodes and assigns the transformed vertex data to predefined node variables for accumulation. That follows the same patterns like with morph and skinning nodes.
| builder |
The current node builder. |
- Overrides: Node#setup
.update( frame : NodeFrame )
Checks if the internal buffers require an update.
| frame |
The current node frame. |
- Overrides: Node#update