ray_interior_color atomic not working properly

[giagitom]

Hi,
when I set ray_interior_color, atomic and render the scene i get a uniform coloring instead.

[speleo3]

I've marked this as a feature request. I think it's reasonable to support this, but want to spec out the expected behavior before implementing.

I assume you expect that a sphere with color yellow and ray_interior_color=atomic will have a yellow interior color (color of current primitive), and not the color you'd get from color atomic.

That would yield the following support table for ray_interior_color:

Setting value	Effective Color
named color	named color
name of color ramp	ramp lookup at front clipping plane
object	object color
atomic	color of current primitive (new)

Different contexts for the atomic color:

Command	Effect
color	Assigns element colors to atoms
ramp_new	color of closest atom in proximity object
set ray_interior_color, atomic	ray interior coloring by current primitive color (new)

[giagitom]

Yes, exactly.
It would be nice to implement this feature.

[giagitom]

Thank you @speleo3 i tried the new feature and looks really nice!

Would it be possible to scale (darken a bit) interior color when atomic coloring is set? This is to better discriminate internal from the external parts. I tried to scale interior color by 0.8 factor in the below image.

I also found strange artifacts when rendering spheres together with cartoons as you can see

[speleo3]

@giagitom you can control the brightness to some extent with the direct and reflect settings.

Side note: I thought we now match lighting properly in ray tracing and shader rendering, but it appears not to be the case for these two settings.

Not sure if there is much we can do about the artifacts.

[giagitom]

Thanks @speleo3 .

Do you know what is the cause of artifacts? Because it is not only related to cartoons only. If i apply any representation other than spheres to the scene it breaks color sorting for some reason.

[giagitom]

Not sure if there is much we can do about the artifacts.

@speleo3 any news on the artifacts cause? I am wondering if you know why this is happening

[speleo3]

any news on the artifacts cause? I am wondering if you know why this is happening

We don't know yet, sorry :-(