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Direct3D -> 2D Part 2, Faking Light!! |
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| Submitted on: 3/2/2001 10:13:16 AM
By: Mark van Renswoude
Level: Intermediate
User Rating:
By 16 Users
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Users have accessed this code 7261 times.
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| | | After figuring out how to rotate 2D sprites using Direct3D (check my other submissions), I wanted to do lighting. After reading some tutorials I gave up, they all used 3D, while I wanted to do 2D. There are other ways of faking light; making tiles in multiple shades at either design time or run time, but they're limited...<br><br>
So here it is: faked light using Direct3D to simulate 2D! It looks great, runs fast (if you've got a 3D card, my P133 with Voodoo 3 could easily run it, although not on software rendering mode), and allows dynamic setting of light brightness and color.<br><br> So how does it work? Easy: it sets the color of a vertex (corner) to the brightness of the light at that specific place, after which Direct3D automatically adjusts the texture!<br><br><br>
Some limitations though:<br><br>
<ul>
<li> Light might seem choppy when moved (like in the example), but static lights will do much better... the smaller the tiles, the less you'll notice it, but I didn't want to fill the screen with 8x8 sized tiles...<br>
<li> This won't work with multiple lights or multiple colors of lights, you'll need to adjust some algorithms for that to work. I'm working on this problem, if I finish it, I'll post it here offcourse.
</ul><br><br>
Enjoy, and don't forget to leave comments and vote!<br><br><br>
(You're free to use this code in your own programs/games, but I would appreciate it if you gave me some credit, thanks!)
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Other 7 submission(s) by this author
| | | | | Report Bad Submission | | | | | Your Vote! | |
See Voting Log | | | | Other User Comments | 3/2/2001 3:06:45 PM:Chris
If you do finish this, I hope I don't
miss it...5/5
| 4/29/2001 7:35:50 AM:Filip
Great code! 5 globes!
| 4/28/2002 2:28:08 PM:Shibaji Datta Gupta
Hi Mark
What a nice program!!!I am
totally amazed...
I am Shibaji from
India,a IT graduate(3rd year),and i am
very interested in DirectX and OpenGL
programming thru VB.
I have started
DirectX...I will be very
benefited if
you can help me learning
these
subjects with some tutorial or
coding...
Thanks
Shibaji
sdg_80@yahoo
.co.in
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