scene aabb in lightspace

console.log size.x, size.y, size.z

min = gl.vec3().set(vmax, vmax, vmax)
max = gl.vec3().set(vmin, vmin, vmin)
vs = [
    gl.vec3().set(-size.x/2, -size.y/2, -size.z/2),
    gl.vec3().set( size.x/2, -size.y/2, -size.z/2),
    gl.vec3().set( size.x/2,  size.y/2, -size.z/2),
    gl.vec3().set(-size.x/2,  size.y/2, -size.z/2),
    gl.vec3().set(-size.x/2, -size.y/2,  size.z/2),
    gl.vec3().set( size.x/2, -size.y/2,  size.z/2),
    gl.vec3().set( size.x/2,  size.y/2,  size.z/2),
    gl.vec3().set(-size.x/2,  size.y/2,  size.z/2)
]
for v in vs
    lightRot.mulVec3(v)
    min.x = Math.min(min.x, v.x)
    min.y = Math.min(min.y, v.y)
    min.z = Math.min(min.z, v.z)
    max.x = Math.max(max.x, v.x)
    max.y = Math.max(max.y, v.y)
    max.z = Math.max(max.z, v.z)
    
size = max.sub(min, gl.vec3())
console.log size.x, size.y, size.z