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DarkBASIC Professional Discussion / Amazing effects....yet again How is it done

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Terabyte
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Joined: 28th Dec 2002
Location: UK
Posted: 21st Jun 2003 17:25
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im still not happy with the idea of how to make plane engine heat. or shimmering air...so insted of doing it in 3d i plan to cheat and get the screen to do it my friend said that he once saw a way to make the screen go wobbley..he nolonger has the code for this...does anybody have it
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Goldeneye Nemesis
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Posted: 3rd Jul 2003 14:09
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well one idea would be to set the camera position to random positions about the normal, e.g.
camera position +/- rnd(1)

otherwise, set the viewpoint to random coordinates (not to large though) every time the game loops to make the screen shake nicely.
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adr
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Joined: 21st May 2003
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Posted: 3rd Jul 2003 14:54
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Where's raven when you need him? Quick, someone needs some pixel shader advice! I don't know shit about pixel shaders, but I reckon you could simulate heat-haze refraction with those things...
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Shadow Robert
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Joined: 22nd Sep 2002
Location: Hertfordshire, England
Posted: 3rd Jul 2003 17:57
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Frob doesn't have a px shader capable card, that aside i've already offered one means of doing it to him but he doesn't seems to want to use it - and i'm plum outta ideas for it to be honest.
think i'm getting over worksed lol

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Hamish McHaggis
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Posted: 3rd Jul 2003 19:08
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I think I saw a .dll that did it somewhere, or maybe not .

cuRant PRogekt: a three-de map editer
Why the hell'd you ask me for crying out loud!?!
Athelon XP 1400 Plus - Nvidia Geforce MX400 - 256mb RAM
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Rob K
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Location: Surrey, United Kingdom
Posted: 3rd Jul 2003 19:44
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@Frobscottle

This is done by writing directly to the backbuffer I believe. Check the DISPLAY SHOWCASE example which comes with DBP.

Do you want Windows menus in your DBP apps? - Get my plugin: http://snow.prohosting.com/~clone99/downloads/tpc_menus_103.zip
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pugmartin
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Location: United Kingdom
Posted: 4th Jul 2003 01:08
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Yes i would definatley do this via the back buffer using memblocks.

Just find out the req`d pos of the effect on the screen, using say screen object x etc, then workout the pos in the screen in memblock terms (ie resx*resy*4 etc) then move (or shimmer) the pixels about that position around a bit. Should give quite a nice effect id imagine. Read the tut on memblocks thingy ma bobs n have a play with it, you`ll pick it up straight away. Have fun!

10 Rem Code goes here
http://geocities.com/pugmartin/index.html
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Terabyte
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Posted: 13th Jul 2003 13:35
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um

yes thats correct i dont have a card for pixel shaders thingy and i kinda want to make this effect available fr most people if i cant then ill probably do the pixel shadey thingehh. um rob k said somthing about the backbuffer this is actually what i was looking for. one of my friends said it was possible to create a wobbley screen effect using the backbuffer but he forgot where he saw this and how it was done *tut sigs just cant et the staff these days* so could sombody explain about the backbuffer what it is what it does etc....

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Puffy
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Joined: 4th Sep 2002
Location: United States
Posted: 14th Jul 2003 09:02
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o_O ... =P I bet you could texture 2 plains... place them infront of the camera... and just jiggle them back and forth... wouldnt that be easy?...

EVERYONE LOVES THE PUFF!... =\
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