Function trsToMat4

src/world/loader.ts:310–321

(t: TransformData)

// The rotation order matches glTF / Blender / most game engines (XYZ Euler,
// applied right-to-left so X spin happens first in object space).
export function trsToMat4(t: TransformData): Mat4 {
  const pos: Vec3 = { x: t.position[0], y: t.position[1], z: t.position[2] };
  const scl: Vec3 = { x: t.scale[0], y: t.scale[1], z: t.scale[2] };

  let m = mat4Identity();
  m = mat4Translate(m, pos);
  m = mat4RotateZ(m, t.rotation[2]);
  m = mat4RotateY(m, t.rotation[1]);
  m = mat4RotateX(m, t.rotation[0]);
  m = mat4Scale(m, scl);
  return m;
}

// Apply an RGBA tint to a scene node. Pulled into a helper so it can be reused
// by prefab expansion (where children inherit the parent entity's tint unless