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Lost Marbles by Vantage [web]
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popularity : 62% |
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alltime top: #4709 |
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added on the 2011-08-29 21:02:42 by Moerder  |
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popularity helper
comments
platform <3
Yeah what they said.
top
\o/
great :)
platform
very nice thing.
yes i like it
great :)
Noticed guy making that, it is nice thing. Thumb up for sure.
I don't know. Is there something with the GBA that makes it hard to write a generic raytracer test scene on it? The scene itself isn't particularly impressive, beautiful or interesting and I'm a bit hesitant to thumb it up just because of the platform.
mandatory thumbup for raytracing on such a demo platform :D
If it was some sort of realtime it would be interesting; ie. the platform would make it more impressive, but for a procedural image it just takes longer than on a faster platform (probably much longer with the lack of native floats), and the scene itself it's a really basic and generic. What it the render time btw?
Platform
Yeeeey!!!
Psycho: Roughly somewhere between 30 and 60 seconds AFAICT. Didn't really measure it, though.
balls
30 to 60 seconds are fucking impressive! So it's not floating point then. I once did a straight port of a regular raytracer to the GBA, and it took like half an hour to calculate the image: https://picasaweb.google.com/lh/photo/tNV1L9cexfs9tAHUMgKq4A?feat=directlink
And even that would have some complications. I had an issue of the stack growing too large and writing all over the heap :)
And even that would have some complications. I had an issue of the stack growing too large and writing all over the heap :)
A mix of what everyone said!
Balls. Touching.
During hacking I always compiled multiple versions of the intro, execution speed varies wildly with ARM vs. Thumb and code location (IWRAM/EWRAM/ROM).
When compiling as Thumb, a few selected functions were compiled as ARM nevertheless because Thumb has no equivalent for the SMULL instruction, and I've thrown out all libraries, including libgcc.
What I finally submitted (ran out both of time and energy, with the size limit not reached) was an ARM version that runs entirely from IWRAM (that is, the fastest I had). Rendering time is somewhere around 43 seconds (I think). -O3 doesn't gain much speed over -Os (about 3 seconds or so).
It's using fixed point arithmetics all over the place. And it's compressed using exomizer2. I tried also aPLib, and the BIOS LZSS depacker, but with larger binaries, exomizer2 beats the shit out of them.
When compiling as Thumb, a few selected functions were compiled as ARM nevertheless because Thumb has no equivalent for the SMULL instruction, and I've thrown out all libraries, including libgcc.
What I finally submitted (ran out both of time and energy, with the size limit not reached) was an ARM version that runs entirely from IWRAM (that is, the fastest I had). Rendering time is somewhere around 43 seconds (I think). -O3 doesn't gain much speed over -Os (about 3 seconds or so).
It's using fixed point arithmetics all over the place. And it's compressed using exomizer2. I tried also aPLib, and the BIOS LZSS depacker, but with larger binaries, exomizer2 beats the shit out of them.
slick thingie!
only for platform!
I'm not so impressed
nice to see gba prod
Balls and great platform. Great one !
for the platform
GBA!
Coder porn!
Great!
Waiting for the SNES raytracer.
Waiting for the SNES raytracer.
yep
w00t?! raytracing on GBA?!
looking back this is indeed pretty rad :)
nice
Forgot to thumb up...
submit changes
if this prod is a fake, some info is false or the download link is broken,
do not post about it in the comments, it will get lost.
instead, click here !
Balls are not touching