Module math 

Small vector and matrix helpers for the 3D viewer and the thumbnail renderer. Vectors are [f32; 3]; matrices are column-major [[f32; 4]; 4] (m[column][row]), as WGSL reads them. The camera space is right-handed (the camera looks down −Z) and clip depth runs from 0 (near) to 1 (far), as wgpu expects.

Functions

add

cross

dot

length

look_at

The view matrix of a camera at eye looking at center with up pointing up the screen.

mul

normalize

a scaled to length 1; the zero vector stays zero.

orthographic

An orthographic projection showing half_h units above and below the centre of the screen.

perspective

A perspective projection: fovy is the vertical field of view in radians, aspect width over height.

rotate_about

p turned by angle radians about the axis through origin along the unit vector axis, counter-clockwise looking down the axis (Rodrigues).

scale

sub

transform_point

m applied to the point p, after the divide by w.

Type Aliases

M4

V3