Concepts Of Lighting

[lasse-1]

HI, guys how r u doing? I have this problem with my model when it came up with the concept of light. This model i have in 3d is like in real life, the same size as a gym. So I was wondering, if this my model of 3d, existed in real life, how many lights should I have in 3d model? Case in real life i would say 300- 500 lights to light up the real life scene. Should I have the same amount of lights to make it photorealistic? to have the exact same look?
Note: I am not concern of how bright or how dark this thing will looks, I am concerning how shadows will fall, and how many will I have.

1 light- 1 source of energy- 1 shadow position
300 lights- 300 sources- x amount of shadows.

Hope u guys can help me out to figure it out this thing, cause this is driving crazy, I can not finish to light my scene with my concept in lighting is not good enough to make the scene looks good.

Thanks for your time.
Have a nice day!

[joojaa]

QUOTE(Oborochan @ 01/06/09, 07:02 AM) [snapback]298233[/snapback]
Should I have the same amount of lights to make it photorealistic? to have the exact same look?

Well there's more than that. You nee dto first account for computational insides of the system working difeerent form what your monitor does so you need to have all data linear in renderer.

Second no model is EXACTLY like the one in reality. That just DONT happen EVER. It can be acceptably close. And in general no you dont need the exact same light to look the same. Some of the lights contibute so little it doe snot matter.

On the otherhand diffuse refelctins form surfaces contribute in reality more than beginning 3d artists usually think. So you will need to get your gi solution right. OR use coregraphed, noreal lights to simulate the effect.

so in reality its

1 light- 1 source of energy- infinitely many shadow positions

[lasse-1]

Thanks for replying. U r actually correct cause my materials seems to be okay but I am not sure if the correct amount of reflection/refraction is even right which makes things a little be more complicated in the long way. I was just not sure about lighting itself, and so far in this scene I have final gather but not GI yet. I let u post as it goes. Thanks a lot. Let see what I can do with this.

QUOTE(Joojaa @ 01/06/09, 05:17 AM) [snapback]298250[/snapback]
Well there's more than that. You nee dto first account for computational insides of the system working difeerent form what your monitor does so you need to have all data linear in renderer.

Second no model is EXACTLY like the one in reality. That just DONT happen EVER. It can be acceptably close. And in general no you dont need the exact same light to look the same. Some of the lights contibute so little it doe snot matter.

On the otherhand diffuse refelctins form surfaces contribute in reality more than beginning 3d artists usually think. So you will need to get your gi solution right. OR use coregraphed, noreal lights to simulate the effect.

so in reality its

1 light- 1 source of energy- infinitely many shadow positions