Chaos Corona Forum

Chaos Corona for Cinema 4D => [C4D] I need help! => Topic started by: conna2005 on 2022-01-06, 12:02:49

Title: Roughness/Blurryness of Reflecvtive Objects
Post by: conna2005 on 2022-01-06, 12:02:49

I try to find out, howi can get a reflective Survace with Rougnhess, that i get a Blury Surface.

The Help File says that i must use the Clearcoat Layer. i tried it but i was not getting a good result.

Could you help me out ?

Title: Re: Roughness/Blurryness of Reflecvtive Objects
Post by: Beanzvision on 2022-01-06, 12:28:34

Hi, can you share what you have got so far? Material settings etc? It should be rather straightforward to do.

Title: Re: Roughness/Blurryness of Reflecvtive Objects
Post by: conna2005 on 2022-01-09, 15:46:39

I have here a simple Scene.

The Ball is a Chrome Shader with full Glossy.

I want a Blurry Surface in the reflecion. How must i do it ?

Title: Re: Roughness/Blurryness of Reflecvtive Objects
Post by: BigAl3D on 2022-01-09, 23:09:12

Your sphere is perfectly glossy/reflective as it is. The only issue is, your scene is late day and dark with nothing bright to reflect. Here is a render from your scene, but I duped the sphere and moved it behind so you can clearly see how reflective your material is.

Title: Re: Roughness/Blurryness of Reflecvtive Objects
Post by: Cinemike on 2022-01-09, 23:35:42

Quote from: conna2005 on 2022-01-09, 15:46:39

The Ball is a Chrome Shader with full Glossy.

I want a Blurry Surface in the reflecion. How must i do it ?

So you want a red sphere, but its color must be blue?

Title: Re: Roughness/Blurryness of Reflecvtive Objects
Post by: BigAl3D on 2022-01-09, 23:56:29

Ha. Totally misread the original post. Just adjust the Glossiness slider to the left until you like it. I don't think you need the Clearcoat setting for a rough reflection.

Also, if you're using Corona 7 or later, you have the material library with many metal materials ready to use. Several of them have rough surfaces.

Title: Re: Roughness/Blurryness of Reflecvtive Objects
Post by: Cinemike on 2022-01-10, 00:05:21

There is a (pretty pointless in most cases ;)) workaround to keep your sphere as shiny as a mirror and still have the HDRI blurry.

You can use a ray switch material and let it send out a blurry version of your HDRI to anything reflective.

But, if in any case, you want everything blurry in the sphere, really set the blurriness in the material and not in each and every scene material via ray switcher ;)


PS the ray switcher is NOT a pointless shader, this usecase is just a bit ... pointless, unless you really just want the HDRI blurry and the rest sharp.

Title: Re: Roughness/Blurryness of Reflecvtive Objects
Post by: Beanzvision on 2022-01-10, 14:43:58

Hi,

Is this what you are after?

(https://forum.corona-renderer.com/index.php?action=dlattach;topic=35281.0;attach=159360;image)