strange reflection

laverdet_943f1f7da1

hello! i'm trying to reproduce an effect like on the attached picture, but i can't get those "diffracted" reflections at all... thanks for an idea!!!

Philemo_Carrara

Diffraction in reflectance is caused by IOR. Not sure the effect is visible without caustic (caustic should be set much higher than the default 1000).

see this article https://www.chaosgroup.com/blog/understanding-glossy-fresnel (different software, but the physic principles are there)

You can try to set different value in IOR, set fresnel effet to 100% and see if it changes something.

 

 

 

BrianP21361

Would adding blurry reflections get you the effect you're looking for?