Bathroom light portal test

Display your final art here...
Forum rules
Important notice: All artwork submitted on our public gallery forums gallery forums may or may not be used by OTOY for publication on our website gallery.
If you do not want us to publish your art, please mention it in your post clearly. (put a very red small diagonal cross in the top left corner of the image)
Any images already published on the gallery will be removed if the original author asks us to do so.
We recommend placing your credits on the images so you benefit from the exposure too, and use a minimum image width of 1200 pixels, and pathtracing or PMC. Thanks for your attention, The OctaneRender Team.

For new users: this forum is moderated. Your first post will appear only after it has been reviewed by a moderator, so it will not show up immediately.

This is necessary to avoid this forum being flooded by spam.
Post Reply
User avatar (Default)
MaTtY631990
Licensed Customer
Posts: 754
Joined: Thu Apr 08, 2010 8:38 pm

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
Image

With light portal
1222 samples
35 minutes
Image

30 minutes with light portal
Image
Last edited by MaTtY631990 on Sat Jul 09, 2011 2:39 pm, edited 1 time in total.
Top
User avatar
necko77
Posts: 323
Joined: Thu Jan 21, 2010 11:27 am
Location: Bosnia&Hercegovina

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 :)
ArchiCad, Blender, Moi3d
GTX 580 3GB
Win 7, 64 Bit
Top
User avatar
RainerS
Licensed Customer
Posts: 49
Joined: Thu Jul 08, 2010 7:58 am
Location: Estonia
Contact:
Contact RainerS

I don't get it, what's a light portal?
Nice renders anyway!
Windows 7 64bit | Geforce 260GTX | 4GB
Top
User avatar
matej
Licensed Customer
Posts: 2083
Joined: Fri Jun 25, 2010 7:54 pm
Location: Slovenia

RainerS wrote:I don't get it, what's a light portal?
See here
SW: Octane 3.05 | Linux Mint 18.1 64bit | Blender 2.78 HW: EVGA GTX 1070 | i5 2500K | 16GB RAM Drivers: 375.26
cgmo.net
Top
User avatar
gzavye
Licensed Customer
Posts: 140
Joined: Tue Jan 12, 2010 11:35 am
Location: nantes
Contact:
Contact 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.
win 7 64 | i7 2600 3.4Ghz | 8Go | GTX 580 | 3dsmax | Octane for MAx 3.01 |Driver 306.23 |CUDA Driver 5.00
Top
User avatar (Default)
MaTtY631990
Licensed Customer
Posts: 754
Joined: Thu Apr 08, 2010 8:38 pm

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.
Top
Post Reply

Return to “M is for Metaverse Gallery”