How should light a room if I want to have a warm, comfortable mood? Almost a glow. I dont know if Im creating the right mental image... but something very relaxing for the eyes and gives the emotion of comfort.. Sligthy orange. I dont know exactly how to say this... just a happy, warm glow. Again... how should I light this room in order to achieve this effect?Or is this type of effect generated in post-production? Any help would be appreciated. Thanks a lot.

white balance to a slightly bluish white to get the orange color. use soft diffused lights, bounced off of boards or the ceiling or anything outside of the shot. i'm not an expert in lighting, so i'll let someone else take it from here.

I recommend doing it post because you'll be able to achieve the exact look you want. You can use basic color correction tools to achieve an orange tint and lighten the scene.

What editing program are you working with?

Thanks for the replies!...
I am using Adobe Premiere/After Effects

The tricky thing about this scene is that it starts out with the light, happy glow and then a character turns the lights off in the room and the lighting now has to be suitable for making it look both nighttime and evenly lit.

Generaly to achieve mood in cinematography you need to look a number of different things, both on camera, and with lights.

LIGHTING
both the temperature of the lights and the quality of light produced can achieve different moods:

-ORANGE HARD LIGHT-Hot Mood
-BLUE HARD LIGHT- Cold Mood
-BLUE SOFT LIGTH- Peaceful

I would use a soft orange light. to achieve this i would use orange gels over your lights and then either 'punch' the light into a poly(white bounce board) or use a diffusion scrim or screen.

CAMERA
If you have the ability, crank up your shutter speed on your camera so the apeture is fully open, but gain has not started. This will shorted you depth of focus and also add a bit of warmth. i would keep the white balance on your camera stationary. so set it to a preset, or the 'hold' function so it doesnt change during the scene.

As for the switch changing. just run two lighting setups and switch between them. and make sure your camera's white balance is still on hold.

i dissagree with mark, as a purist on the cinematography side i believe that an effect or mood needs to be created on set, and then touched up and if need be enhanced in post. i dont know how the hell you would effectively soften a light source in post, once the image has been filmed.

Thanks a lot parnell... very helpful.

I think I found a bedroom to shoot this scene in now. Its pretty much empty, so I will have to decorate it all so the color scheme, ambience, etc. creates a happy, content feeling.
This is a pretty complex scene... it comprises of a single 1 and half minute long very complicated shot. Oh well... it should look very awesome...

Thanks again for all the advice.

You could also lower the color temperature settings in your camera (if it has that feature). I tried doing that in this shot (I'm not sure if that's the orange tint you were thinking of however), but you could play around with it.

http://www.reenactentertainment.com/stest1.jpg

just turn down the cyan, and up the magenta and yellow in post.

if you light everything evenly, the magenta and yellow channels will make things glow really strange (since it's offsetting your greens and blues). i have some film, i wonder if my flatbed scanner will scan it. it won't look pretty, but you'll see the color. lemme try.

You can literally apply "Glow" in AE if that's what you're looking for. Gives a porn-movie soft focus look.

I would recommend NOT applying too many post-production filters/ color manipulation tools. The most important thing to focus on is lighting.

i wuld use a soft orange light coming possibly from a window in the room. i wuld also put some smoke in the air from like a smoke machine. then u might want to touch it up in post.

be very careful with smoke. certain smoke machines and smoke liquids have a tendancy to make the smoke sink, or rise unevenly and, and that looks pretty crap.

exactly parnell, u don't want to use too much just a little to give some atmosphere.