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DarkBASIC Professional Discussion / an artifical sun

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diseased
22
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Joined: 16th Aug 2003
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Posted: 26th Aug 2003 11:00
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im attempting to make some lights in dbp for an outdoor environment. How would i make a light simulating the sun? im not talking about a model of the sun that casts lights, just a light source that creates shadows and light.. basically a big light in the sky. Ive tried various lights, but the only one that does anything is ambient light.

is it even possible to make illuminated lights?.. like a lightbulb or sun or textures that emit lights or look illuminated (say a light in an office window, or those little lights in the floor of the theatre) im not working on that yet but i'd just like to know..
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adr2
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Joined: 21st Aug 2003
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Posted: 26th Aug 2003 15:34
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One of the first things I do for an outdoor scene is convert light number 0 (the ambiant light) to a point light...

set point light 0, 0,0,0
set light range 0, 10000

then position the light wherever you like

position light 0, x, y, z

(I know that set point light can take a position, I just like to see the position set explicitly)
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Arius Myst
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Posted: 26th Aug 2003 16:15
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If you actually want to build a sun so its visible to the player. I'd advise against using a sphere. Use sprites instead. That way you can keep the polygon count to a minimum. You could also use sprites for a lens flare.

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HoverFrog
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Joined: 7th Aug 2003
Location: Canada
Posted: 28th Aug 2003 01:13
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I made a sun using a plain object ghosted it and textured it with a sun picture (using transparency to hide the black) then i got it to always face the camera position.
Point Object obj num,Camera Position X,Camera Position Y,Camera Position Z

You can then position your point light where you put your plain object.

Anyway worked fine for me. Hope I could help
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