Page 1 of 1

Something strange in this scene

Posted: Thu Jun 12, 2008 8:02 pm
by danyolgiax
Hi!

I'm rendering a simple wallpaper 1280x800 with a plane and two spheres.

With a different HDRI in the past i've a good image after 6-7 hours.

now after 20 hour rendering this is the result.

It's normal?

Thx

Dox

Posted: Sat Jun 14, 2008 7:17 am
by Photoguy
If those are glass spheres, then the IOR should be 1.52
Other than that I don't see any problem.

Posted: Sat Jun 14, 2008 11:20 pm
by Kram1032
I see your problem...

Photoguy, there'sn't any mistake but the huge time consummation...

The other one was with same blendigo, Indigo?

Are you using a different HDR now or is it sun?

Posted: Sat Jun 14, 2008 11:50 pm
by danyolgiax
different HDRI...

Posted: Sat Jun 14, 2008 11:52 pm
by Kram1032
ok.... Well it could be that the HDR just isn't as good...

Posted: Mon Jun 16, 2008 11:51 pm
by danyolgiax
thx for replay!

I'll try with a different one!

Dox

Posted: Thu Jun 19, 2008 10:50 pm
by danyolgiax
Yes it was an HDRI problem! This is the same scene with a different HDRI rendered in 4 hours... it's better than the previous rendered in about 20 hours!!

In the second image now I've a strange effect (marked in red) and I cannot say if it's an artifact or is a normal glass reflection... what do you think?

Dox

Posted: Thu Jun 19, 2008 11:32 pm
by Zom-B
danyolgiax wrote:In the second image now I've a strange effect (marked in red) and I cannot say if it's an artifact or is a normal glass reflection... what do you think?
As far as I can see, its the horizont line flipped exactly like it should be.
if you would try other (none reflecting) ground mat, you'll see it much better (checker for example).