Toon hatching with OSL not working

[p.wagner00]

Hello,

I've been following this Lee Griggs' tutorial for Toon Hatching in Arnold, as follows
https://www.youtube.com/watch?v=h1ue5qJAjXI

He uses the UberNoise.osl as a mask color.
But for some reason I'm only able to contour the geometry, the hatching doesn't work whatsoever, although the OSL used seemed to be compiled alright.

I got this error // Warning: [mtoa] Could not link aiOslShader1.outValue to aiToon1.mask_color. and I think it has something to do with it.

I'm using Maya 2019 MtoA 5.0.0.2.

Sorry I don't know how to explain this in more detail, I'm really just following the tutorial.

Thanks.

[lee_griggs]

This is a known issue and has been reported. Thank you for the feedback.

[p.wagner00]

Oh, ok. Thank you.