Chaos Corona Forum

Chaos Corona for Cinema 4D => [C4D] General Discussion => Topic started by: STRAT on 2017-02-28, 13:47:55

Title: refraction material?
Post by: STRAT on 2017-02-28, 13:47:55

Hi guys

very new to corona in c4d. 

finding it impossible to create a simple refraction material/object like the water in this image.  please can you advise?  thank you

Title: Re: refraction material?
Post by: STRAT on 2017-02-28, 14:20:07

thanks guys, solved it with help from a colleague and playing around.

it's hard going without documentation.  does any exist for this type of thing?

Title: Re: refraction material?
Post by: romullus on 2017-02-28, 14:20:13

Can't be more simple - set diffuse to 0, reflection to 1, refraction - 1, IOR - 1.333 That's it, now you have basic water material :]

Title: Re: refraction material?
Post by: maru on 2017-02-28, 17:23:24

Also remember about properly overlapping faces! :)
https://coronarenderer.freshdesk.com/support/solutions/articles/5000515618

Title: Re: refraction material?
Post by: mascal on 2017-02-28, 18:41:06

Quote from: romullus on 2017-02-28, 14:20:13

Can't be more simple - set diffuse to 0, reflection to 1, refraction - 1, IOR - 1.333 That's it, now you have basic water material :]

mmmmhhhh maybe I lost something ... how can I set refrection to -1 ? And what does it mean diffuse to 0 ?

Title: Re: refraction material?
Post by: maru on 2017-02-28, 19:16:24

Quote from: mascal on 2017-02-28, 18:41:06

Quote from: romullus on 2017-02-28, 14:20:13

Can't be more simple - set diffuse to 0, reflection to 1, refraction - 1, IOR - 1.333 That's it, now you have basic water material :]

mmmmhhhh maybe I lost something ... how can I set refrection to -1 ? And what does it mean diffuse to 0 ?

Reflection = 1
Refraction = 1
Reflection IOR = default
Refraction IOR = 1,33 for water, 1,5-1,6 for glass

Diffuse 0 means diffuse level 0, or diffuse color pure black. We just don't want diffuse at all.

Title: Re: refraction material?
Post by: romullus on 2017-02-28, 19:21:45

Quote from: mascal on 2017-02-28, 18:41:06

Quote from: romullus on 2017-02-28, 14:20:13

Can't be more simple - set diffuse to 0, reflection to 1, refraction - 1, IOR - 1.333 That's it, now you have basic water material :]

mmmmhhhh maybe I lost something ... how can I set refrection to -1 ? And what does it mean diffuse to 0 ?

It's not -1, it's - 1 Big difference :]

Title: Re: refraction material?
Post by: STRAT on 2017-02-28, 20:33:04

thanks everyone.

i'm a vray vet converting to corona, but for some reason found this one a tad confusing :P