scanComprehensiveWGSL¶

Overview¶

All of the needed logic for a raked workgroup scan (including the logic to load and store the data).

@author Jonathan Olson <jonathan.olson@colorado.edu>

Type scanComprehensiveWGSLOptions¶

import type { scanComprehensiveWGSLOptions } from 'scenerystack/alpenglow';

• input: WGSLVariableName
  varname of input var<storage> array<{valueType}>
• output: WGSLVariableName
  varname of output var<storage> array<{valueType}> (can be the same as the input)
• scratch: WGSLVariableName
  varname of output var<workgroup> array<${valueType}, ${workgroupSize * grainSize}>
• binaryOp: BinaryOp<T>
• exclusive?: boolean
• getAddedValue?: ( ( varName: WGSLVariableName ) => WGSLStatements ) | null
  null | ( varName ) => statements - should write a value to be added to everything into the specific variable name This is designed to be used for multi-level scans, where you essentially want to add an "offset" value to everything in the workgroup.
• & RakedSizable & OptionalLengthExpressionable & GlobalIndexable & WorkgroupIndexable & LocalIndexable & Pick<scanRakedWGSLOptions<T>, "storeReduction" | "stripeReducedOutput" | "addedValueNeedsWorkgroupBarrier"> & Pick<loadMultipleWGSLOptions<T>, "factorOutSubexpressions" | "inputOrder" | "inputAccessOrder">

Source Code¶

See the source for scanComprehensiveWGSL.ts in the alpenglow repository.