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Carrara F.A.Q (Last Updated: 2025 Oct 29 12:19 am)

 

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Subject: Fresnel shading.

Nicholas86 opened this issue on Nov 14, 2005 · 11 posts
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Nicholas86 ( ) posted Mon, 14 November 2005 at 9:44 PM · edited Fri, 07 November 2025 at 11:52 AM

file_304424.jpg

Just testing out the fresnel function built into Carrara 5. This image shows fresnel going from 0% on the left sphere to 100% on the right sphere. Increasing about 20% each step. Same settings are in reflection and transparency. 30% value in each.

Nicholas86 ( ) posted Mon, 14 November 2005 at 9:44 PM

file_304425.jpg

This image shows fresnel only no transparency this time.

ren_mem ( ) posted Mon, 14 November 2005 at 10:30 PM

Definitely makes the texture look better.

No need to think outside the box....
    Just make it invisible.

MarkBremmer ( ) posted Mon, 14 November 2005 at 11:24 PM

file_304426.jpg

Been doing some glass, metal and liquid tests myself. The marble and glass have the same shader/fresnel properties but look different because the refraction is concentrated in the sphere. Fun to play...





TOXE ( ) posted Tue, 15 November 2005 at 1:31 AM

Nice image Mark:-) Looks like a bit Salvador Dal.. -TOXE


 

ShawnDriscoll ( ) posted Tue, 15 November 2005 at 1:32 AM

Mark has the right idea for fresnel use.

www.youtube.com/user/ShawnDriscollCG

Nicholas86 ( ) posted Tue, 15 November 2005 at 4:20 AM

Nice example Mark. I was testing the settings and the degree of change per setting. People were saying that it wasn't working correctly. I feel it is. And its surprisingly fast. Comparing to the old fresnel plugin from the now defunct zmorphics.

GWeb ( ) posted Tue, 15 November 2005 at 12:49 PM

It is good to see fresnel shading as addition to essential for renderer. I still see something missings: 1. Micro aura without glow shader 2. light-bent effect outside fresnel.

ren_mem ( ) posted Wed, 16 November 2005 at 12:51 AM

Nice that it is fast...honestly some of the shaders just don't look right w/o fresnel. The fresnel in SS shaders looked pretty good, but haven't personally used it.

No need to think outside the box....
    Just make it invisible.

steama ( ) posted Mon, 21 November 2005 at 9:49 PM

Mark, I was wondering if you would be kind enough to share some tips on how you modeled the wine in the glass to look so fluid and natural? Awesome job! Thanks, Steama

MarkBremmer ( ) posted Mon, 21 November 2005 at 11:20 PM

Attached Link: http://www.eovia3d.net/showthread.php?p=58494#post58494

Hi Stema, Thanks for the kind words! I answered over at Eovia3D.net. Please use the link above.





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