I’m trying to mimic the lighting / shading in this image:
I just mean the lighting, not the radial texture.
Here the .blend file:
The first problem I have is that as you can see:
if the camera is in perspective then lines appear curved depending on the angles of the view.
If I render with camera in Orthographic then the lines are straight. But I need to render whith perspective camera. How I can get straight lines in perspective?
The other issue is that as you can see in that shadow that I have marked with the red arrow here:
this seems to be darker than the ambient lighting/world. I have not been able to get that. I was thinking that to achieve that dark band I could add an additional Anisotropic BSDF there, and then invert/negative it to that band appears shading instead of lit. I mean, my real question is, Is it possible to invert a “Shader” for what should appear as illuminated appear as shading, and vice versa?
I do not know if that would be enough, because I need that band is darker than the ambient light.
(I hope this last thing I said was understood, because I do not know how to explain better)