IndexBuffer

Source (.js)Source (.d.ts)

Methods

buildFlatIndexBuffer

Build an index buffer with a separate provoking vertex for each cell.

buildIndexBuffer

Build the index buffer for the cells of the request. The resulting typed array is stored on the request as nativeArray and its WebGPU index format as format. When pointIds is true, the indices are point ids and the flat id maps are null. Otherwise, the indices refer to flattened vertices.

Argument	Type	Required	Description
req	IWebGPUBufferRequest	Yes	The request, providing cells, numberOfPoints, primitiveType, representation and cellOffset.

buildPointIdIndexBuffer

Build an index buffer of point ids for the primitive-index feature.

extend

Method used to decorate a given object (publicAPI+model) with vtkWebGPUIndexBuffer characteristics.

Argument	Type	Required	Description
publicAPI		Yes	object on which methods will be bounds (public)
model		Yes	object on which data structure will be bounds (protected)
initialValues	IWebGPUIndexBufferInitialValues	No	(default: {})

getFlatIdToCellId

Get the map from flat id to the cell id it was expanded from.

getFlatIdToPointId

Get the map from flat id to the point id it was expanded from.

getFlatSize

Get the number of flat ids, i.e. the number of vertices the attribute buffers must hold.

getIndexCount

Get the number of indices stored in the buffer.

getPrimitiveToCellId

Get the global cell id of each primitive, or null for a one-to-one mapping.

getPrimitiveToCellIdBuffer

Get the storage buffer holding the primitive-to-cell map, when needed.

newInstance

Method used to create a new instance of vtkWebGPUIndexBuffer.

Argument	Type	Required	Description
initialValues	IWebGPUIndexBufferInitialValues	No	for pre-setting some of its content

setFlatIdToCellId

Set the map from flat id to the cell id it was expanded from.

setFlatIdToPointId

Set the map from flat id to the point id it was expanded from.

setFlatSize

Set the number of flat ids.

setIndexCount

Set the number of indices stored in the buffer.