does Cycles not render in Firefly? Or probably I am doing it wrong: I connect the Toon Bsdf to the CyclcesSurface Surface input - comes out black in Firefly. I add an AddCLosure in between - black. I add a "normal" node to the normal input - it is still black,

But seems to work as expected in Superfly.

So whats wrong?

Also, a related question, I try to understand the ProbeLight Shader. Not sure what it is used for. What are the "L" parameters? The manual doesnt explain them. Lights positions?

Lastly, I try to make a custom toon shader as an alternative for the toon shader. I use FresnelBlend and/or EdgeBlend with a step function to draw outlines and a shade which works ok.

But for the shades, I want a shading function that is dependent of the angle of the light. Like a regular shader.

But you can only connect the shaders directly to the DIffuse, Specular etc inputs, and not change their output with a step function etc etc before that.

So any ideas where you get a light angle dependent shading function from?

Thats why I tried cycles, but see above - dont get it to work in Firefly.

Thanks.