Refraction anisotropic

[Arch.Hany]

am confronting a case where i need a sphere to be refracted behind a basic refractive plane with a strong refraction glossiness

but i want the sphere to only be refracted by the z axis

something like what the anisotropic does with reflection glossiness but in refraction

can anyone help me achieve this result in any way ?

[super gnu]

i would imagine a horizontal finely striped bump map would work? maybe on the back face if you still require flat reflections.

[Arch.Hany]

unfortunately the result would be very hard to control

[super gnu]

well a procedural map (gradient ramp or similar) on a simple plane, with IPR while setting up is probably not too hard to tweak id have thought..? given there are no anisotropy controls for refraction it seems the only option.

[Arch.Hany]

Yeah i think so it could work
but an option for that effect would very appreciated

[super gnu]

ainisotropic refraction.rar

that took like 3 mins to set up. uses a bitmap of stripes made from a tiled gradient ramp. i found the procedural map didnt work as expected, but that could be a limitation of the ipr renderer.

you can control the blur strength with the bump map spinner - it needs some large values.

max 2018 file attached.

[super gnu]

as mentioned if you need clear reeflections youd probably need to either add a coat material, or use the "bumpy" material on the back face only. have a play!

[Arch.Hany]

that looks amazing !!
i am trying to achieve it without luck

and the attached file won't download for some reason

[super gnu]

if you send me a pm with an email address ill send you the file. for some reason i cant download it either.. some site error.