How to rotate a mark along its own axis

[is0ss]

Hi, I've been trying to draw vectors in 3D space but the arrows are in weird angles or not visible at all.

I couldn't find a way to rotate the marks so that they are facing towards the camera but maybe something exists?

#import "@preview/cetz:0.3.4": canvas, draw, vector
#canvas({
	import vector: *
	import draw: *
	ortho(y: 10deg, x: 30deg, {
		line((0,0,0),(3,0,0), mark:(end:"straight"))
		line((0,0,0),(0,3,0), mark:(end:"straight"))
		line((0,0,0),(0,0,3), mark:(end:"straight"))

		let x = (1,1,1)
		let y = (2,3,3)
		let z = (1,2,1)

		line((0,0,0), x, mark:(end:"straight"))
		line((0,0,0), y, mark:(end:"straight"), stroke: (dash: "loosely-dashed"))
		line((0,0,0), z, mark:(end:"straight"))

		let xy = add(x,y)
		line(x,xy)
		line(y,xy, stroke: (dash: "loosely-dashed"))
	
		let xz = add(x,z)
		line(x,xz)
		line(z,xz)

		let zy = add(y,z)
		line(y,zy, stroke: (dash: "loosely-dashed"))
		line(z,zy)

		let xyz = add(add(x,y),z)
		line(xy,xyz)
		line(xz,xyz)
		line(zy,xyz)
	})
})

[johannes-wolf]

There is no optimal solution until we re-do marks (on the agenda). You can rotate them, by setting
set-style(mark: (z-up: (...))) to a normalized vector representing the normal of the plane the mark is drawn on.

[is0ss]

Thanks, that works for now!