Page 1 of 4

Exterior - times of day

Posted: Sat Apr 12, 2008 2:15 am
by BbB
Nothing revolutionary here. Just felt like doing an exterior after flicking through some architecture books. Then felt like milking the scene by rendering at different times of the day. The night one never really cleared so it has a lot of Neatimage applied to it. The others took some time too but kind of converged in the end. The pool is a volume with a bump map. The gravel on the left (where the vegetation is) is displaced. Everything was modeled in Blender apart from the plants and trees which are a mixture of free models. Hope you guys like it.
Each image was rendered at 2000x2500 pixels using Indigo 1.0.9 64 bits. Rendering times varied between 8 and 30 hours. I blame the trees for the long render times, but I'm not sure.

Posted: Sat Apr 12, 2008 2:25 am
by OnoSendai
Really beautiful images, congrats.
I think the last one looks best.
Did you use aperture diffraction?

It's a pity the night one didn't clear up, I'm not sure why, but I suspect the water and glass and lighting interactions become more dominant in that setting.
Is the water a bump map?

Oh, and please upload to gallery! thanks!

Posted: Sat Apr 12, 2008 2:31 am
by OnoSendai
One other thing,
Are your leaf materials for the green leaves and flax diffuse materials?
They look like they are diffuse, and have a somewhat too high albedo.

I suspect that using a green phong material, perhaps blended with a green diffuse transmitter (see e.g. the Dr's material experiments) may be more realistic.

Posted: Sat Apr 12, 2008 4:04 am
by Photoguy
Wow, can i have a tutorial for the tree?
You did an amazing job!

Posted: Sat Apr 12, 2008 4:11 am
by enricocerica
Nice idea and very well executed as usual. Did you modelled the trees ? The one with red leaves is very natura, how many vertices does it contain ? Also, did you used a exponent map for the ground ?

Posted: Sat Apr 12, 2008 4:20 am
by Vanessa07
Ono, maybe you should create a gallery for BbB :lol:

Great job again :D

Photoguy

I agree, your trees and plants in general are ever realistic

Posted: Sat Apr 12, 2008 6:16 am
by BbB
Ono: Hey master. Glad you like them. I used aperture diffraction on some of the images and not on others (don't ask why, no idea). The last one doesn't have it.
Yep, the water is a bump map, which I know is not ideal, but I wanted to keep the scene relatively light because of the trees that add so many polys.
Re the night scenes: All surfaces are phongs or speculars and that scene has quite a lot of emitters plus an HDRI. Considering the complicated paths because of the leaves, I guess that explains why it took so long to render...
As for the leaves and plants, they are all the same: phong+diffuse transmitter. The only difference is that the tree at the back is crap and the leaves are only alpha maps whereas the red tree actually has individually modeled leaves.

Photoguy: The trees are all free models from the web. The red one is from the Dresden University Xfrog Public Plants repository. It has great trees, unfortunately the site has been down for a week now.

Enrico: Hey man. I guess I've answered the tree question. Yes, I used an exponent map for the ground, and for most materials too. I generally use both bump and exponent as it really boosts realism.

Vanessa07: Hi there. Thanks a lot ;-)

Posted: Sun Apr 13, 2008 4:06 am
by Vanessa07
BbB

Can you give us a link for the trees, I don't find it... :oops:

Posted: Sun Apr 13, 2008 5:00 am
by BbB
Try this one, the mirror seems to be working:

graphics.uni-konstanz.de/plantslib/main.html

Posted: Sun Apr 13, 2008 6:03 am
by Vanessa07
Many Many thx BbB :D :D :D :D

Posted: Sun Apr 13, 2008 8:32 am
by joegiampaoli
I just like the way he says it......"Nothing revolutionary here....." :shock:

Posted: Mon Apr 14, 2008 8:55 am
by Kram1032
Just amazing! I especially like the night version :D

@Ono: I've no idea, if that'd make any sense at all, but would it be possible to make an Oren Nayar Transmitter? - a diftrans with roughness? Or wouldn't that make any effect at all?
Just thinking, because maybe that'd be even more real, when blending it with a phong to fake leaves.... (or any other textured material with SSS - skin may also be improved in that way... - Of course only if it works as I imagine)

Posted: Mon Apr 14, 2008 9:49 am
by PureSpider
Hum am I totally stupid or is the lamp missing in the 2nd pic and the chair standing on the other side of the table, also the (whatever it is) on the table is missing?
Apart from that... damn nice!

Posted: Mon Apr 14, 2008 10:32 am
by BbB
Yes PureSpider. You're right about that. People live there ;-)))

Posted: Tue Apr 15, 2008 3:14 am
by ousmee
BbB, am so so thrilled by your work. It can't luk natural than it did. Am going to ask for a BIG favour for myself and others intrested. Can you PLEASE give us a tutorial on this Rolling Eyes We will everly remain greatful. And hey, thanks a million for the link- xfrog jus saw it now.