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WasmGPU.math.quat.normsq

Summary

WasmGPU.math.quat.normsq returns squared Euclidean norm. It avoids the square root cost when only relative length comparison is needed.

Syntax

WasmGPU.math.quat.normsq(q: number[]): number
const result = wgpu.math.quat.normsq(q);

Precision-Specific Wasm Forms

WasmGPU.math.quatf.normsq(q: WasmPtr): number
WasmGPU.math.quatd.normsq(q: WasmPtr): number

These forms use caller-owned pointers to 4-element quaternion blocks in WasmGPU driver memory: binary32 for quatf and binary64 for quatd. Methods with an output pointer write that block instead of allocating a JavaScript array. See WasmGPU.math for allocation, views, aliasing, and release requirements.

Parameters

Name Type Required Description
q number[] Yes Quaternion input as [x, y, z, w].

Returns

number - Squared Euclidean norm of the input.

Type Details

type Quat = number[]; // expected length: 4 ([x, y, z, w])

Example

const canvas = document.querySelector("canvas");
const wgpu = await WasmGPU.create(canvas);

const q = [0, Math.sin(Math.PI / 8), 0, Math.cos(Math.PI / 8)];
const result = wgpu.math.quat.normsq(q);
console.log(result);

See Also