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Bathroom light portal test
Posted: Fri Jul 08, 2011 10:11 pm
by MaTtY631990
I did two renders of a bathroom scene I used in a earlier post. Just a comparison of render with a light portal and a render with no light portal. I tried this with a basic scene of a small opening for a box and 2 objects and similar result. 2x faster renders using light portals.
They are just identical renders but with a nice speed difference. Also I did not want a perfectly clean render so just left some noise in.
no light portal
3596 samples
1 hour rendertime
With light portal
1222 samples
35 minutes
30 minutes with light portal
Re: Bathroom light portal test
Posted: Sat Jul 09, 2011 12:02 am
by necko77
nice test and very nice results...nice speed up !
Pic with light portal looks better, especialy on left side of wall where pic without light portal looks darker
Every speed up, I WELLCOME
Re: Bathroom light portal test
Posted: Sat Jul 09, 2011 8:48 am
by RainerS
I don't get it, what's a light portal?
Nice renders anyway!
Re: Bathroom light portal test
Posted: Sat Jul 09, 2011 9:11 am
by matej
RainerS wrote:I don't get it, what's a light portal?
See
here
Re: Bathroom light portal test
Posted: Sat Jul 09, 2011 1:51 pm
by gzavye
Pic with light portal looks better, especialy on left side of wall where pic without light portal looks darker
For me result is not significant
And it's slower. 3596s/px_60mn versus 1222s/px_35mn.
Light portal is a great concept, but in this first 2.48 it really needs improvments.
Re: Bathroom light portal test
Posted: Sat Jul 09, 2011 3:46 pm
by MaTtY631990
It does need improvements but also try on simple scenes, and you will see a big boost in speed. I tryed with
a test scene with few objects and with a light portal and it gave a 4x faster speed. Also the number of samples
is much less because the render engine is focusing where most of the light is coming from, hence why the number
of samples is lower.