WasmGPU.math.mat4.mul¶
Summary¶
WasmGPU.math.mat4.mul multiplies a matrix by another matrix or by a 4-component vector. Use it to compose transforms or apply a transform to homogeneous coordinates.
Syntax¶
WasmGPU.math.mat4.mul(matr1: number[], matr2ORvect: number[]): number[]
const result = wgpu.math.mat4.mul(matr1, matr2ORvect);
Parameters¶
| Name | Type | Required | Description |
|---|---|---|---|
matr1 |
number[] |
Yes | First 4x4 matrix input (16 numbers in column-major order). |
matr2ORvect |
number[] |
Yes | Second operand: pass 16 numbers for matrix-matrix multiplication or 4 numbers for matrix-vector multiplication. |
Returns¶
number[] - Computed product array: 16 values for matrix-matrix multiply or 4 values for matrix-vector multiply.
Type Details¶
type Mat4 = number[]; // expected length: 16 (4x4, column-major)
type Mat4OrVec4 = number[]; // 16 values for matrix multiply, or 4 values for matrix-vector multiply
Example¶
const canvas = document.querySelector("canvas");
const wgpu = await WasmGPU.create(canvas);
const matr1 = wgpu.math.mat4.identity();
const matr2ORvect = wgpu.math.mat4.translate(wgpu.math.mat4.identity(), [0, 0, -2]);
const result = wgpu.math.mat4.mul(matr1, matr2ORvect);
console.log(result);