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 veryhotthread  Author  Topic: GFXLIB  (Read 2309 times)
David Williams
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xx Re: GFXLIB
« Reply #121 on: Jul 21st, 2010, 12:09am »
New routine (alpha-blend with master opacity control) as recently requested by a BB4W user who's developing a GFXLIB-based game.

Here's a quick demo of PlotAlphaBlend4:

http://www.bezu.co.uk/filesdump/temp/progs/plotalphablend4demo.zip

Notice the nice smooth sprite edges? Use the left/right arrow keys to decrease/increase the number of sprites.

This routine will be included in the next release (v2.02) of GFXLIB due out in a month or three.


David.
« Last Edit: Jan 18th, 2012, 5:00pm by David Williams » User IP Logged
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xx Re: GFXLIB
« Reply #122 on: Jan 18th, 2012, 5:23pm »
NOTE: Most of the web links (URLs) in this thread (prior to this post) are no longer valid.


~ ~ ~


I have modified an old GFXLIB example program to display a rotating 3D toroidal ring donut:

http://www.bb4wgames.com/gfxlibdemos/progs/exe/donut.zip


I was 'inspired' by this little DarkBASIC demo (YouTube video):

"Oldschool Demo - Shaded vector balls"
http://www.youtube.com/watch?v=XUGHoqM7myk

EDIT (21/01/2012): Here's my attempt so far (using above YouTube video as a reference).
It only runs at half the 'optimum' frame rate on my laptop (30 fps instead of 60 fps):
http://www.bb4wgames.com/gfxlibdemos/progs/exe/donut2.zip


Bear in mind that the DarkBASIC program will have been compiled to native x86 machine code, whereas donut2.exe is still actually interpreted BASIC.


Other GFXLIB demos:

http://www.bb4wgames.com/gfxlibdemos/gfxlib_demos_index.html


David.
« Last Edit: Jan 20th, 2012, 11:45pm by David Williams » User IP Logged
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