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DarkBASIC Discussion / Lens flare help please

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Aramil
21
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Joined: 27th Oct 2003
Location: Wherever my feet take me
Posted: 1st Aug 2004 02:55
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Okay...I'm still working on Space Havoc 3
In this game, I have a sun. Wow. My lens flare effect is like this:

SXDis#=320-object screen x([sun])
SYDis#=240-object screen y([sun])
SDistance#=SXDis#+SYDis#
Scale object [sunflare],SDistance#*300,SDistance#*300,SDistance#*300

I'm using 640x480. Unfortunatly, the FARTHER away the sun is from the center of the screen, the larger the sun flare. I need to reverse that, so the closer it is to the center of the screen, the larger the sun flare gets. How do I reverse that?

PS. Please don't send me links to another codebase or forum or anything. I've already been to most of them, and I'm having trouble understanding it.
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bitJericho
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Joined: 9th Oct 2002
Location: United States
Posted: 3rd Aug 2004 01:40
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Scale object [sunflare],SDistance#*300,SDistance#*300,SDistance#*300


..try dividing...

Scale object [sunflare],SDistance#/1.01,SDistance#/1.01,SDistance#/1.01

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Axelman
21
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Joined: 18th Oct 2003
Location: Parallel Universe
Posted: 4th Aug 2004 17:41
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yup, thats basically what i was gonna say, just reverse the sum you did.
The Opposite of Multiplication is Division.

43% of Percentages are made up on the spot.
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Aramil
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Joined: 27th Oct 2003
Location: Wherever my feet take me
Posted: 17th Aug 2004 12:19
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Thanks! I'll try it!
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Philip
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Joined: 15th Jun 2003
Location: United Kingdom
Posted: 18th Aug 2004 08:56
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I've put some example DBPro Lens Flare code into the codebase.

Also, I've included some code for a Lens Flare which, with some amendment, would work on DBC in my Vector Guide. See:

http://forum.thegamecreators.com/?m=forum_view&t=34319&b=1

Cheers

Philip

What do you mean, bears aren't supposed to wear hats and a tie? P3.2ghz / 1 gig / GeForce FX 5900 128meg / WinXP home
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