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hami
09-22-2007, 10:50 PM
Hello,

I worked the whole last day on my first testrendering with vray.
Pretty much everything was about testing the settings and playing with the material system.
The render took about 40min on my old machine (AMD 64 3200+ 1GB DDR)
I think one could optimize that alot.

http://img509.imageshack.us/img509/3619/4copydm5.jpg

The Settings:

Antialising:
Adaptive DMC

-Filter on: default
-Min subd: 1 max subd: 4

Indirect illumination
optimized Medium Quality preset (IR+LC)
Primary bounces 4
Secondary bounces 1

Irradance Map:
min: -3 max: -1
Hemispheric subd: 75
Interpolated samples 30

Light chache:
Subdivision: 700
sample size 0.05

Color Mapping:
Exponential

dark: 1,0 bright: 1.7 gamma: 1.0

physical sky:
default + size multiplier: 3

physical camera:
F-number: 15
shutter speed: 185
Film ISO: 170

white balance: default

Sputnik
09-24-2007, 12:31 PM
I like the light in your image! With the wall texture..a kind of mediterran feeling :)

nycL45
09-24-2007, 02:30 PM
I like the composition but have reservations about the darkest part being center foreground. That is gutsy but it may need something a bit stronger to convince the eye to study the foreground as well as the background. Humans are like insects and always go to the light (store windows, etc.) The plaster wall at the back is very nice but IMHO, the "blemishes" are a bit out of scale (large). Did you use additional emitters to light the ceiling?

edub
09-26-2007, 11:34 PM
The Settings:

Antialising:
Adaptive DMC

-Filter on: default
-Min subd: 1 max subd: 4

Indirect illumination
optimized Medium Quality preset (IR+LC)
Primary bounces 4
Secondary bounces 1

Irradance Map:
min: -3 max: -1
Hemispheric subd: 75
Interpolated samples 30

Light chache:
Subdivision: 700
sample size 0.05

Color Mapping:
Exponential

dark: 1,0 bright: 1.7 gamma: 1.0

physical sky:
default + size multiplier: 3

physical camera:
F-number: 15
shutter speed: 185
Film ISO: 170

white balance: default


Do you mean that your primary bounce multiplier is set to 4? Does the multiplier equal the number of bounces? If so, how can you have 1.5 bounce....

Maybe I'm not understanding where to change number of bounces....

Also, do you have your Sunlight intensity multiplier set to 1, or the default 0.05?

Fluffy
09-27-2007, 01:35 AM
GI multiplier is not the bounce option, it just allows you to set more or less strength to the GIs. Usually, you don't want to change the default paramaters, since it will change your exposure and accentuate artefacts (things that won't happen with color mapping, or at least not as much).

I don't think there is a particular option for bounces in Vray, but the intensity and distance thresholds (for IR map) should be quite similar (since Vray will continue to calculate the GI solution as long as these thresholds are not met - to a certain extent).

For the light cache, the number of passes should be equivalent to bounces.

For Brute force, the ray depth is effectively the number of bounces.

stefan
09-30-2007, 05:05 PM
vray uses always very much bounces. only in brute force you can limit the bounces.

the settings look ok, juts the primary multiplier should be always 1, not 4:-)

cheers
stefan