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reflection of a circle in image
Posted: Wed Jun 20, 2012 10:18 pm
by Asmithey
I have seen this is several of my images in the reflections. Interior and exterior. You can see it in the windows.
Any ideas?
Re: reflection of a circle in image
Posted: Wed Jun 20, 2012 10:31 pm
by Fernando Tella
Funny!
There's no texture in the glass material, true?
Re: reflection of a circle in image
Posted: Wed Jun 20, 2012 11:43 pm
by m-Que
I would say it has something to do with material settings or glass geometry - notice how it represents the POV as it would be 'photographer'
Re: reflection of a circle in image
Posted: Wed Jun 20, 2012 11:43 pm
by Asmithey
Nope...Just ags glass.
Re: reflection of a circle in image
Posted: Wed Jun 20, 2012 11:48 pm
by m-Que
Just AGS from wizard?
Hmm... ok, what will happen if you replace that glass geometry with a simple plane (one from the 'Studio primitives')?
Re: reflection of a circle in image
Posted: Wed Jun 20, 2012 11:50 pm
by m-Que
BTW, I hope it's not some sort of double/triple glazing?
Re: reflection of a circle in image
Posted: Thu Jun 21, 2012 1:24 am
by Asmithey
it is a simple 1" thick pane with ags. It justed started doing this on my last few jobs using form-z. I have not noticed using Blender though.
Re: reflection of a circle in image
Posted: Thu Jun 21, 2012 10:10 am
by Fernando Tella
Maybe it has something to do with camera ranges?
Re: reflection of a circle in image
Posted: Thu Jun 21, 2012 10:23 am
by choo-chee
my guess is (I don't know your software but) that maybe a clip plane in the camera settings is causing that. like it's clipping the surrounding sphere and you get a circle in the POV.
Re: reflection of a circle in image
Posted: Thu Jun 21, 2012 12:24 pm
by zdeno
fresnel
Re: reflection of a circle in image
Posted: Thu Jun 21, 2012 2:45 pm
by tom
What happens when you hide everything else and render the glass alone?
Re: reflection of a circle in image
Posted: Sat Jul 21, 2012 1:20 am
by zdeno
solved ?
Re: reflection of a circle in image
Posted: Sun Jul 22, 2012 6:46 am
by Asmithey
Sorry, I have not checked this post in a while. I have not tried to sove it. I will do as Tom says and see what happens. In the mean time I finished the project in Blender and everything rendered fine. No circle. So....It was only doing this in Form-Z to Maxwell Render.
Re: reflection of a circle in image
Posted: Sun Jul 22, 2012 2:59 pm
by zdeno
thank you for sharing .
still curious what gives this funny circle
Re: reflection of a circle in image
Posted: Mon Jul 23, 2012 1:49 pm
by bograt
I don't think its the glass, I have had this as well.
I am sorry for mentioning this as I do not know what causes it but I have noticed this appearing on my renders before.
Are you using c4d? Strangely I have noticed something similar occurring to my stitches in ptgui which is just bizzare...
does this occur in fire?