Khan | Interior 2

[khan973_forum]

Hi everyone,

I have some free time, so here is my 2nd interior attemps.
I didn't make the scene (Evermotion), but textured quickly.

My main problem is rendering time, I'm sure I can get faster results for same quality, but I'm stucked now.
1h42 min seems a lot for a 1024 x 768 scene. And edges are still jagged.
Reflection blur on textiles are very noisy, I can't figure what's wrong.
Crits and help are welcome.



Config:
Intel Core 2 Duo 2.53 GHz | Vista x64 | 4GO of RAM
Lightwave 9.6 x64
Kray 3.0

LW Config:
Ray Recursion, Limit: 20
2 Sided Area Lights: unchecked

Background Config:
Texture Environnement | Gradient from 255,218,202 (Orange) to 186,200,214 5Blue)

Light Config
Ambient turned off

SUN:
- Spotlight (sunspot) 1km Falloff | Inverse Distance^2
- Color 240, 230, 180
- Intensity: 150%
- Cone Angle: 2.0°
- Soft Edge Angle: 0.55°
- Kray Photon Multiplier: multiplier 500, Power 7

WINDOW:
- Area 2m Falloff| Inverse Distance^2
- Color 203, 221, 250
- Intensity: 30%
Light Quality: 4
- Kray Photon Multiplier: multiplier 500, Power 8

LUMINOUS GEOMETRY:
Geometry is a curved plane wrapping around the window
- Luminosity: 500%
- KrayPhotonMultiplier Shader: multiplier 500, Power 5

OTHER NOTICEABLE SURFACES:
Curtains: KraySurfaceOptions: Control FG rays Min 50, Max 200
Floor: KrayIndirectRays Shader Desaturate 60%, Multiply 0
KraySurfaceOptions: Control reflection blur Min 150, Max 200

MASTER PLUGIN:
KrayQuickLWF: Gamma 2.2, Exposure 1, all checked

KRAY SETTINGS:



I guess I showed my settings pretty accurately

[Janusz Biela]

Why You don`t used oversampling? I ask becouse FG 400/2000 is very high. Whay You have slow AA, blurr, GI.....
You must turn ON FG transparency.
Blurr FG maximum 2.
B/D must be 0.
Area quality 1/4 maximum , rest 0.
My favorite AA: FSAA G4 box 0.7.
Please turn ON AUTO.
The bigest problem with speed in Your scene is HIGH FG setup (400/2000) .
Please add Area light in windows (small: 1,5 m square not exacly as windows becouse You will recive noise near area lights on the ceiling and walls, this is only RAPID for light)

[khan973_forum]

Thanks, I'm gonna try this.
For Oversampling, you mean by command line?

I know 400/2000 is high, but I thought it would avoid splotches and give good shadows.
I thought FG transparency would slow down the render.
Ok for B/D. and Auto.
I have an area at the window, it's half the surface of the window.

[Janusz Biela]

oversampling in cmds yes. Now is in GUI but still beta.
max FG for oversampling IMHO is 300/600. (I use 200/400)

[khan973_forum]

I made the changes, but I get a lot of splotches and "color leaks". I'm not happy with the result.
I thought more Blur would avoid some of those problems.

I used auto, Turned FG transparency ON, B/D 0%, FG rays 100/500.
I didn"t use oversampling though, I still need to figure out how it works.
I used 20% less photons to speed up rendering.

[Janusz Biela]

You do something wrong.....this looks very bad.
Check precompute mode with cells where is problem also turn OFF You glass windows.

[khan973_forum]

It looks very bad indeed
I completely removed the windows.
I need to figure how Oversampling works.
But yes, Precompute will tell me what's wrong. Should i keep the other parameters the same though?
Because I need to tweak faster and if I change many parameters at once for speed, I won't be able to get where the problem comes from. How do you proceed?

[Janusz Biela]

please share only walls model + lws

[jure]

Why don't you use latest Kray version?

[khan973_forum]

@ JURE: Laziness... I didn't have it on my laptop @home
@ Johnny: Here is the scene http://www.555lab.com/khan/Khan_Export.zip

THANKS

[joreldraw]

My test , i change some options starting with midle setting, and move the area light near the window and scale this vertically.
Change exponential to gamma 2.2 same that QLWF setting
Render with Q6600

[joreldraw]

-50% floor reflection.

[khan973_forum]

Thanks,
It seems there's enough photons, but it looks washed out, thats why I didn't use Gamma 2.2.
Corners are too dark, because of corner disttance & path.

With your render I just realized that the background shape behind the windw might drop shadow causing darker areas close to the window and lighter one at the left corner of the room.

[joreldraw]

Second image no so much washed.
First is washed because you was so much reflection in ground.

With your high exponential all is supersaturated and dark. i think 4.2 is a big value.
Try 1 to 3 and increase GI.

Check too my render time

[Janusz Biela]

My version 30 min. Please remove shaders from floor just put desaturate 100%.