The Glowing light in the window

[Jet]

Quick Question, I have seen alot of renderings where there is like a very very bright light in the window and it almost appears as if that is the light source lighting the interior,

How in the dickens it that thing created.

Just curious. Oh yeah I finally got MAX5.1

Yipeeeeeeeeee

 

Jet

[id_ivan]

if using radiosity there's a process to make the windows become a light source, by assigning the surface become an "opening" or "window" type. Adjusting the environtment/skylight would make the 'light source' become brighter or dimmer, try it with your new max

hint: opening won't cast reflection, window does

 

regards

[nichchris]

Hi jet,

 

I personally don't use the technique mentioned by id_ivan I use omnis and spotlights

to get all my lighting effects, the renderings probably are much slower but much better

quality than the technique of making a light source from an window object. Plus you can still

see through the window when you want with my technique, and not the other.

 

Anyway I have started a thread 2 days ago that I will be updating with my technique.

I started with the studies, I will then be adding the more specifique info later.

Surprisingly no one replied to it, I figured this would be the kind of info 3D archi modelers

would want but I quess I was wrong ... Of course I'm using fR.. but I think this technique

is applicable accross the board in al GI renderes because it uses the MAX foundation.

 

Anyway

 

Here is the link to the thread.

 

http://www.cgarchitect.com/ubb/ultimatebb.php?ubb=get_topic;f=11;t=000226

 

nichchris

[id_ivan]

Hi Chris,

 

No harsh here, but didn't I mentioned "RADIOSITY"? Radiosity somehow has big different with GI (fr, Vray ..etc). try put an omni in your scene and calculated it with radiosity, then you'll know what i mean..

 

Plus you can still

see through the window when you want with my technique, and not the other .

I might not an expert in 3d but this statement is obviously wrong. Any surface that has transparency will not blocking visibility of other object behind them. that's common rule in any 3d apps.

 

Cheers

[Ernest Burden III]

this statement is obviously wrong. Any surface that has transparency will not blocking visibility of other object behind them. that's common rule in any 3d apps.

And sometimes that would be wrong, too. If the material is shiny, like glass for example, reflections can cause the material to visually 'block' you from seeing what's beyond.

[id_ivan]

And I have a feeling that you might be wrong too. reflection happen when light reach reflective surface with 0 luminance background. if the surface is transparant, they are passed through, when they hit 0 luminance background, the light will discard the background and bounce back the the eye through the reflective surface. in a day when you walked in front of window store(they are closed and turn off the lights) and you see how good looking you are. When they're open (here comes the lights) you only see their showcases and stuff like books in their display rack. that's simply because the light reach items and the ray enter your cornea and visually you see the stuff. Almost all the reflection gone because the light is all over that stuff.

Transparency will not lack visibility, reflective does, but in a term of dark background. And supposed it to be highly reflective, why should you make it transparent anyway? If I want it reflective, i'll make a black material with 100% reflection.

 

Cheers

[nuno]

I might not an expert in 3d but this statement is obviously wrong.

And sometimes that would be wrong, too.

And I have a feeling that you might be wrong too.

LOLLLLLL....you guys!!!

 

so...each one only can learn if was wrong at least once..... everybody is wrong and everybody is right...hehehe, peace

 

nuno

[Cesar R]

if using radiosity there's a process to make the windows become a light source, by assigning the surface become an "opening" or "window" type

how is this done? and does it only work with max native radiosity?

[id_ivan]

:ngelaugh: i just didn't realize it till nuno said .

Cesar, this process couldn't be done with max (or me dumb?) I don't use max radiosity for rendering, I use Lightscape radiosity. Anybody know this with max/viz?

 

Regards