var scratch: array; struct Params { count: u32, scale: f32, } @group(0) @binding(0) var params: Params; struct DataBuffer { values: array, } @group(0) @binding(1) var data: DataBuffer; @compute @workgroup_size(64, 1, 1) fn main(@builtin(global_invocation_id) global_id: vec3, @builtin(local_invocation_id) local_id: vec3) { let idx = local_id.x; scratch[idx] = (data.values[idx] * params.scale); workgroupBarrier(); if ((idx < 32)) { scratch[idx] = (scratch[idx] + scratch[(idx + 32)]); } workgroupBarrier(); data.values[idx] = scratch[idx]; }