`mat3`

Function

Builds a mat3x3, 3 columns of 3 components in column-major order, from 3 vec3 columns, from 9 components column by column, from a larger matrix by truncation, or with no arguments for the zero matrix (§40).

The signature and the sentence under each name are the compiler's own text at commit 26de7be8.

Syntax

declare function mat3(): mat3x3
declare function mat3(c0: vec3, c1: vec3, c2: vec3): mat3x3
declare function mat3(e0: number, e1: number, e2: number, e3: number, e4: number, e5: number, e6: number, e7: number, e8: number): mat3x3
declare function mat3(m: mat3x3): mat3x3
declare function mat3(m: mat3x4): mat3x3
declare function mat3(m: mat4x3): mat3x3
declare function mat3(m: mat4x4): mat3x3

A number in a parameter or a return position is the scalar slot. The ambient file declares a GPU scalar as a branded number whose brand is optional, so a literal and any branded scalar both fill it.

type f32 = number & { readonly [f32Tag]?: true }

A declaration you write still needs a width, and a bare number on a field or a parameter is refused; the TypeScript constructs page carries that row with the compiler's own message.

Parameters

c0 optional vec3
e0 optional number
m optional mat3x3mat3x4mat4x3mat4x4
c1 optional vec3
e1 optional number
c2 optional vec3
e2 optional number
e3 optional number
e4 optional number
e5 optional number
e6 optional number
e7 optional number
e8 optional number

Return value

mat3x3

Description

It is square, so determinant applies and transpose maps it to itself.

Examples

normal-matrix.shade.ts