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This ‘Engines room’ (‘sala motori’) is a test scene for experimenting with Global Illumination , with material , lights and settings for VrayBlender .
Blend file downloadable from blendswap : http://www.blendswap.com/3D-models/s...gi-test-scene/
If you try the scene and have questions or suggestions about render settings , please post !
It’s a simple architectural interior , lit by daylight only .
It has relatively small windows : big enough to get the room decently lit in a sunny afternoon , but still small enough to create some technical problems for GI calculations.
The settings in this scene aren’t defaults , not much different but tuned for this scene , and in general for interior scenes that are a little “nastier” than usual : because of small , distant light sources that require lots of bounces to fill the scene with light , scenes with very localized strong reflection highlights , with a discrete amount of glossy reflections , etc..
So have a look , but keep in mind there’s a reason if the factory defaults are different (they’re the most universal) while settings in this scene are more tuned to a scene like this one.
Render time and quality : this thing renders in 30mins on a core quad 3ghz at 1080p. Quality is not extra-high , GI noise splotches are mostly gone , but still some noise in reflections. Anyway good considering render time.
The scene is setup for VrayBlender 2.5 , i’d like to adapt it for other engines (such as Cycles and Luxrender ) in the future.
If anyone is interested in doing that too , please go ahead ! and let me know of your results.
It might be interesting even just to test with a clay material.
And expecially to test how much different is to setup gi with sun coming from the big windows on the left , with large areas of direct light Vs. sun coming from the small windows on the right and a weak skylight from the opposite side.
Depending on engines the 2 cases can be similar to setup or very different and have very different render times .
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SCENE CREDITS :
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SCENE : 3D MODELS, LIGHT SETUP, NODES SETUP by Nicolo’ Zubbini (Ni.Zu)
TEXTURES :
By Ni.Zu ( own photos or painted , CC:By,SA)
-concrete block , decayed wallpaint
-B/w wallpaint grunge,B/W floor grunge
-floor bump , lines bump
-machinery unwrapped scratches texture
By Ideasman42 (photo textures shared under CC:by license )
(edited by Ni.Zu : made tileable , created bump and spec)
-stone floor color
-Wood color / spec / bump
Web: http://www.graphicall.org/ftp/ideasman42/textures/
By Yorik ( CC:By)
trees shadowmap based on image samples from Blender Greenhouse
Web : http://yorik.uncreated.net/greenhouse.html
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