Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Bug Reporting => [Max] Resolved Bugs => Topic started by: jonofj on 2014-03-07, 04:34:35

Title: Not sure if this is a bug or not
Post by: jonofj on 2014-03-07, 04:34:35
hi guys

not sure if this a bug or not - but ive placed a sphere in a box ,  the sphere has an light emission material on it
and when rendered its seen on the box surface....Can someone help...I dont want the sphere to show thru the box, but still need the light inside it.
Title: Re: Not sure if this is a bug or not
Post by: maru on 2014-03-07, 10:56:55
I have no idea what is going on here but M. C. Escher would be so proud of you. Please post material setups and what version you are using.
Title: Re: Not sure if this is a bug or not
Post by: agentdark45 on 2014-03-07, 11:41:07
What am I looking at....
Title: Re: Not sure if this is a bug or not
Post by: Ondra on 2014-03-07, 11:46:54
hi guys

not sure if this a bug or not - but ive placed a sphere in a box ,  the sphere has an light emission material on it
and when rendered its seen on the box surface....Can someone help...I dont want the sphere to show thru the box, but still need the light inside it.

Interesting, can you post the scene?
Title: Re: Not sure if this is a bug or not
Post by: jonofj on 2014-03-09, 22:40:57
attached file.
Title: Re: Not sure if this is a bug or not
Post by: Ondra on 2014-03-09, 23:04:19
Your material has very slight refraction enabled.
Title: Re: Not sure if this is a bug or not
Post by: jonofj on 2014-03-10, 05:04:05
Thank you Ondra,

I just lowered the Refraction of the metal and also made the greys colours darker to no.2, seems to do the trick.

thanx again for your quick response.

I had a similar problem on another scene will go try and see if that works with this .
Title: Re: Not sure if this is a bug or not
Post by: Ondra on 2014-03-10, 09:56:54
Why would you even have refraction on metal materials in the first place? Metal never refract any light. Set it to zero.
Title: Re: Not sure if this is a bug or not
Post by: Tanakov on 2014-03-10, 10:51:49
Keymaster, its easy he probably converted the evermotion material's at some point those guys used refraction IOR and values at all their models.

Some people mistakenly change the values because they think that you should add atleast some refraction to objects as all objects in reallife have some IOR.