headlight reflection colours in real life

[adamrg7]

https://www.dropbox.com/s/9wx9g7u6dpmeh ... 1.png?dl=0
https://www.dropbox.com/s/2pnv112ujjw14 ... 2.png?dl=0

check out whats happening see the purple green reflections in the headlight glass. How could we emulate whats happening here in octane render. I dont know if other cars do this in real life but ive seen the aventador do it a lot.
thanks

[nuno1980]

Unfortunatley OR v3.0x doesn't have birefringence support but... until maybe v3.10 with new OSL. Birefringence is very important because by example: stress-induced birefringence - see https://en.wikipedia.org/wiki/Birefringence.