Simple Renderings Thread

StompinTom · Post by **StompinTom** » Sat Jan 05, 2013 7:16 am

OnoSendai wrote:Trying out new glossy transparent with a SSS test.
Head model is the 'infinite head'.
Scattering coefficient is 1000, but it's still too low

Looks greasy

Would it be possible to have a play with that scene? Maybe a different light setup could show off the SSS a bit better?

Post by **OnoSendai** » Mon Jan 07, 2013 8:23 am

I have attached the head scene.
Render with single-directional path tracing.
Displacement could do with a bit of tweaking as mentioned by Zom-b.
You will have to download the head model + textures yourself and adjust the paths in the IGS file.

Get the data from http://www.ir-ltd.net/infinite-3d-head-scan-released

Post by **OnoSendai** » Tue Jan 08, 2013 3:46 am

Trying out different displacement parameters:
b = 0.006, c = -0.003 (so that mid-grey is zero displacement)
texture exponent (gamma)=1.

CTZn · Post by **CTZn** » Tue Jan 08, 2013 7:17 am

it looks right.

mudbox and ZBrush use 50% grey as zero displacement, probably the authors of the head data went along with the standards.

FakeShamus · Post by **FakeShamus** » Tue Jan 08, 2013 9:48 am

thought I'd give this head a try - took a lot of tweaking to get the absorption working half way decent, it doesn't use any scattering. basically blended glossy transparent and phong. still a bit waxy I think... I'm attaching the .igm (sans textures) if anybody wants to play with it.

Voytech · Post by **Voytech** » Tue Jan 08, 2013 10:05 am

Thats damn nice!

FakeShamus · Post by **FakeShamus** » Tue Jan 08, 2013 12:02 pm

gave him a "skull" and added some sss to the skin material, now he's not so dead.

Post by **OnoSendai** » Tue Jan 08, 2013 1:20 pm

FakeShamus wrote:gave him a "skull" and added some sss to the skin material, now he's not so dead.

Good stuff!
How did you do the skull?

FakeShamus · Post by **FakeShamus** » Tue Jan 08, 2013 2:17 pm

OnoSendai wrote:Good stuff!
How did you do the skull?

Copied the head and scaled it down, trying to give it even space all around. then cut of the ears and nose and dug out some eye sockets. Made it a dark red diffuse. The SSS takes a long time to converge with this material, any tips to speed it up?

Zom-B · Post by **Zom-B** » Wed Jan 09, 2013 5:43 am

Here some Background Object for a Kitchen Scene I work on atm.

cotty · Post by **cotty** » Wed Jan 09, 2013 6:23 am

I've read about a simple trick to "fake" the front end textures of the board:
Use the same texture as for the side of the board, but flip and scale a lot...
Maybe you can use it here?

Is there a "getrennt" versio of the chair?

Zom-B · Post by **Zom-B** » Wed Jan 09, 2013 6:37 am

Hey cotty, good point about the texture, will do as suggested

The image of the chairs is a based on 2 renderings, so you could imagine how "getrennt" would look like ^^

zeitmeister · Post by **zeitmeister** » Wed Jan 09, 2013 7:14 am

Sehr schön, ZomB!

Impulse · Post by **Impulse** » Wed Jan 09, 2013 7:58 am

Die Petersilie fetzt

Mor4us · Post by **Mor4us** » Wed Jan 09, 2013 10:26 am

the petersilie is awsome

already 2sided mats?

somehow the fabric on your chair still looks.... hypnotic...
maybe you could improve the texture to reduce/avoid the tiling

best regards