Radiosity - Interior Illumination by Exterior Source

[MegaPixel]

I think I've pretty much figured out the Exterior Lighting Settings for Light Tracer and I'm moving on now to the Interior Lighting setup.

I have not successfully rendered a single convincing scene yet using Radiosity for my Interiors. I'm sure it has something to do with my settings and not my Modeling because I always model phiscally accurate with more detail then is necessary.

 

My first scene will be an Interior Dining Room with many Windows around it. My goal is to Illuminate the Room with an Exterior Sunlight source and NO interior Lights (If this is possible). So far, I have tried a Daylight System only and a Photometric Target Light only, both yielded pathetic results.

 

I guess I need a point in the right direction as far as which Lights I should use to accomplish this, which Rad. Settings I should tweak and what materials I should use on my Glass (Should any be required). I'll post some of my SCene examples tommorow. Thanks

[Wilson Iwazawa]

Hey MegaPixel

 

Take a look at this

http://www.cgarchitect.com/ubb/ultimatebb.php?ubb=get_topic;f=5;t=000248

 

and

 

http://www.cgarchitect.com/ubb/ultimatebb.php?ubb=get_topic;f=5;t=000265

 

I think it is what you are searching

 

Hugs

[ZepSOFD]

Mega-P,

Don't worry about glass during the rad. proc. just hide it then turn it back on when you render. Use the daylight system it'll be the easiest to use for now, but remember you will need to set your mat's up right and use the exposure control effectively.

 

Rad. Sol. settings to start with:

IQ: 70-90

RI: 0, if render is blotchy increase until most of the blotchy's dissapear.

Filt: 0, when the RI gets close increase this until smooth, you should not have to increase more than 3

Mesh: depends on the dimensions of of your scene, small scenes can handle more mesh density than large ones.

 

Exposure Control:

Logarithmic.

Brightness, Contrast, Mid Tones, that's something you need to eyeball.

Physical Scale, start at 10,000 and go up.

There's no real need to check Exterior, all it does is re-scale the brightness control, and I have yet to see a scene that requires less than 1 for brightness.

 

tom