Chaos Corona Forum

Chaos Corona for Cinema 4D => [C4D] General Discussion => Topic started by: Marian on 2018-08-06, 19:45:08

Title: Fresneloff
Post by: Marian on 2018-08-06, 19:45:08

Hi. How can I translate this effect from 3Dmax into C4D?

Title: Re: Fresneloff
Post by: Eddoron on 2018-08-06, 20:06:57

What does it do? Turn off the fresnel effect? Is it somewhat related to glossy fresnel?
What happens when you play with the IOR slider?

Title: Re: Fresneloff
Post by: dubcat on 2018-08-06, 20:27:21

They removed support for this fix a few Corona versions ago.
You will get the same frensel taint no matter what you do.

(https://i.imgur.com/YNAWiOb.png)

Title: Re: Fresneloff
Post by: Marian on 2018-08-06, 20:33:56

Second screen is just solid color.

Title: Re: Fresneloff
Post by: Eddoron on 2018-08-06, 21:31:41

Sorry, I still don't get it. What does it do and what do you want to achieve?

Title: Re: Fresneloff
Post by: TomG on 2018-08-06, 21:35:45

It used to negate the Fresnel Falloff in reflection intensity (in effect giving you a perfect mirror from any angle).

Title: Re: Fresneloff
Post by: Nejc Kilar on 2018-08-06, 21:37:43

@Marian

This thing probably just maps the IOR to some insane value. What Dubcat is saying is that in the past if you wanted to have the IOR be really super duper mirror like (so that means an insanely high value) this kind of enabled you to go above the Corona IOR limit of 999.

That workaround has been removed now so there is no difference at all. 999 is the highest you can get.

Please feel free to correct me Dubcat.

Title: Re: Fresneloff
Post by: dubcat on 2018-08-07, 08:45:52

Quote from: nkilar on 2018-08-06, 21:37:43

That workaround has been removed now so there is no difference at all. 999 is the highest you can get.

Please feel free to correct me Dubcat.

Right on!

Title: Re: Fresneloff
Post by: Marian on 2018-08-07, 16:53:16

Thank you guys for answers.