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Bitbreaker
Registered: Oct 2002
Posts: 500 |
Compotime: Show me your (vector)balls
After several comments arised that such an amiga-ball can be filled faster, i now want to call out a filler-compo for our coders.
Requirements:
The vector must be rendered in hires, background is white, foreground is dark red.
There's a raster-irq running that splits the screen at $2d and $f2 to set the background and border color to white and black, as seen in the screenshot. Means, there is a charline free in the bottom, that is where the benchmark results are displayed with the system charset. Displaying the result with screencodes is enough for us coders, but hex or decimal values are okay too.
The animation will be precalculated to see the power of your filler only. Therefore a data.bin is provided that contains all animationsteps for all faces with culling etc. already done.
The data structure may be altered to your needs, but not the animation itself, obvious isn't it?
The structure of data.bin is as follows:
byte x1 | $80
byte y1
byte x2
byte y2
byte x3
byte y3
byte x4 (optional, depending on if we have a triangle or quad)
byte y4 (optional, depending on if we have a triangle or quad)
As you can see faces can have 3 or 4 vertices, the first vertice is marked with bit 7 set, to be able to determine if a face consists of 3 or 4 vertices and to have a break out point for a finished frame, which is marked with the value $ff. If there's further questions about the data-format, don't hesitate to contact Bitbreaker
The filling must happen fullframe and fullsize, means, no interlacing or other cheap tricks with reducing resolution.
A counter for benchmarking must be implemented to count the frames until 256 frames have been displayed, it must be made visible in the bottom line.
The lowest value achieved counts (as there might be some jitter), for that, each entry must run in an endless loop.
The whole mem can be used, but every free byte of mem gives extra kudos.
Deadline is June 25th 0:00.
If the deadline is extended, a severe drama is expected, if not, you are out. Also i'll participate with an own entry, make a drama about it! :-)
Entries must be handed in to Bitbreaker and must not be released beforehand. They all will then released after the deadline, for maximum thrill and drama :-)
Each entry must be executeable with run.
SO DO YOU HAVE THE BALLS? |
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Mr. SID
Registered: Jan 2003
Posts: 421 |
It's completely based on Bitbreaker's C source:
http://galway.c64.org/~sid/ball.py |
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BYB
Registered: Jan 2011
Posts: 18 |
thanks for uploading the png's.
Maybe it's possible to save some mem by mirroring verticaly the half of frames. So Hires consists of only back- and foreground colors, the ball should be shaped ofcoz. Sprites allowed? |
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Perplex
Registered: Feb 2009
Posts: 254 |
Quote: Perplex rendered these: https://www.dropbox.com/sh/wkdj7d7cjo5wob9/YQqvLkyYeN/amigaball..
Here's the Ruby code I used if anyone's curious: https://gist.github.com/lhz/5748054 |
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Cruzer
Registered: Dec 2001
Posts: 1048 |
Deadline got here faster than expected, so I didn't get to implement any further optimizations. But looking forward to the other entries! |
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Bitbreaker
Registered: Oct 2002
Posts: 500 |
Can i receive all the animated versions now and the versions of those who shouted the loudest that this is an easy job? :-) It is about to deliver guys! |
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HCL
Registered: Feb 2003
Posts: 716 |
WTF!? June.25 00:00, that's a weirdo time for a deadline!! You has it just any date at 23.59, that's how you do it.. Now i just remembered June.25, and that's today, and *boff* the deadline already passed :-O. I post my last balls now, and the drahma about the deadline starts right here!! ;). |
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Bitbreaker
Registered: Oct 2002
Posts: 500 |
yay, drama \o/ of course i'll accept your actual entry past the deadline for the sake of that! :-) Sorry for confusing :-) |
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Cruzer
Registered: Dec 2001
Posts: 1048 |
Quoting BitbreakerIf the deadline is extended, a severe drama is expected WTF, if I knew it would be extended I could have done so much more, bla bla bla... No, it's ok :) |
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Martin Piper
Registered: Nov 2007
Posts: 634 |
I wonder if anyone used a cart? |
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ChristopherJam
Registered: Aug 2004
Posts: 1378 |
Wait, what? Deadline's gone?
I got caught by the same midnight confusion :(
Can I send the code as it was earlier today? |
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