Doctor Cheese, can't you read? :/
Thank god i Ctrl + C'd before i hit the Submit button...
Ok, so here is how to make colored shadows, as shown on the screenshot on the previous page.
First of all, make a square room, or any other map. For best results, give the floor, wall, or whatever a bright white-ish texture. Lets just pick the floor, like in the screenshot.
Now, create a new brush and place it a couple of inches above the floor. The shape of this brush is your decision. Now select it, and tie it to a func_wall
Next, open up its properties and go to the
ZHLT Lightflags field. Set this to
Opaque (blocks light) If you don't see the ZHLT Lightflags option, make sure you download the latest ZHLT (3.4). You can find it on my site. 64 bit ZHLT is also available there.
Next turn off Smart Edit, and add a new key:
zhlt_customshadowYou'll need a value for this key. You can choose from:
1.0 0.0 0.0 (For a red shadow)
0.0 1.0 0.0 (For a green shadow)
0.0 0.0 1.0 (For a blue shadow)
1.0 1.0 0.0 (For a yellow shadow)
1.0 0.0 1.0 (For a purple shadow)
0.0 1.0 1.0 (For a cyan/light blue shadow)
As you can see, these are actually just RGB values.
0.0 is fully transparent, 1.0 is fully opaque.
If you specify any value above 1.0, rad will cast additional light, useful for an effect that may require luminecent shadows, or another effect that may require a particular shape of light.
Thats all!
As you can see, this method is perfect for creating stain glass windows. You'll need of course colored glass for that. I've prepared some stain glass texture for you guys to experiment with. Get it here:
Stain Glass Textures.