The sunlight:
Multiplier: about 3
Color: slight yellow
Raytraced or hard edge shadow map
No decay or attenuation



This diagrams show the proper place of the lights that in 2 next pages we will
put them in the scene, here is the legend:
1. Sunlight
2. Window sky light
3. Bouncing light from walls & roof
4. Negative light (for darkening)
5. Bouncing light from floor (& where the sunlight rays hit the ground)







Be sure you exclude the walls from casting shadows only for bouncing lights #3

Place about 10 omni lights inside the window's frame, attenuation ends to back of
the room, the color is a bright blue & shadows are very soft & blurry shadow maps.



Place an omni for every wall & one for the roof, same attenuation (ends to back of
the opposite wall), color is close to the wall's & the shadows are soft shadow map.
Put them behind the walls, out of the room & exclude the walls from casting shadow.



We have a problem! the omni light that simulates bouncing from the wall is
illuminating the floor behind the subjects in a wrong way, so we have to correct it,
by excluding the floor from being illuminated or putting a negative valued omni
in that area (low multiplier, with limited range setting), I choose the second way:

Now we are going to set the bounced light from the floor & bright area caused by
direct hit of sun's rays. Change one viewport to sunlight's POV & place some
point lights in the floor (a bit higher, like the diagram) formed like sunlight's
shape on the floor, then place some around here & there.



Group these lights (don't forget to instead copy each from the original one,
so you can set or change the parameters very easily.) here is my adjustments:



Ok, now we got the final lighting, now it's up to you for more
touch ups, adjustments, leveling or any post processing.


In this scene no texture (bitmap or procedural) was used.

Click on the image for high resolution, post processed, flipped & watermarked version.



CHECK OUT http://warpedspace.org for some good lighting Tutorials.