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Socoder -> Off Topic -> Jay Plays with Mandelbrot |
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| Sat, 10 Sep 2016, 10:32 | |
Jayenkai
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Blimey, fractals sure do render slowly!
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| Sat, 10 Sep 2016, 10:32 | |
Jayenkai
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Ffs.. "Shouldn't take too long.." He says.. I decided to try a Fractal render for my next ALChoon video. I did a teensy bit of code-googling, and managed to get it working in BMax. (I'll post code later) At about a second per frame when at 640x480, I figured a nice video of approx 3000 frames, at HD res, would probably take about an hour or maybe two. ... FFS!!! It's been about 5 hours, and the damn thing still isn't done!! I sure hope it looks good, after all this! -=-=- ''Load, Next List!''
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| Sat, 10 Sep 2016, 11:31 | |
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Jayenkai
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Still going..! It's currently taking about 10 seconds to render each frame!! God knows why, they're very empty frames at this point... -=-=- ''Load, Next List!''
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| Sat, 10 Sep 2016, 11:39 | |
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GfK |
Probably cos even though there's not much in each frame, it's still got the same amount of maths to do to work out that there's not much in each frame.
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| Sat, 10 Sep 2016, 12:22 | |
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Jayenkai
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Indeed. A fuckton of maths! .... And it broke! Or, rather, it zoomed into an area with nothing in it. 56 seconds of video.. 5 sodding hours, and I got 56 seconds!! *sigh* Having to restart the whole damn thing, now, with the zoom a bit slower, and the x/y a little off. Good grief.. I've scaled it down significantly, now, though. a grid of 4x4 pixels, instead of it being pixel perfect. Much faster. -=-=- ''Load, Next List!''
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| Sat, 10 Sep 2016, 13:24 | |
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GfK |
Can't you do a low res test to make sure there's something there, then leave a hi res version rendering overnight?
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| Sat, 10 Sep 2016, 13:30 | |
rockford
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There are a few (old) GLB Mandelbrot set generators that can render a scene in about 0.5 seconds. Perhaps you could adapt their code? There are probably C++ and other ones that are faster, but these are easy to read and port. colour - https://www.glbasic.com/forum/index.php?topic=10319.msg91182#msg91182 B&W - https://www.glbasic.com/forum/index.php?topic=4764.msg36097#msg36097 |
| Sat, 10 Sep 2016, 13:34 | |
shroom_monk
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Many years ago, I wrote various fractal generators in BBC Basic, including Mandelbrot. Unfortunately, it seems my copies of that old code have gotten corrupted somehow, or I'd share those versions... :/
-=-=- A mushroom a day keeps the doctor away... Keep It Simple, Shroom! |
| Sat, 10 Sep 2016, 13:38 | |
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Jayenkai
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Tuned it down to a 4x4 pixel grid. Looks alright, and took half an hour to render the 2 minute video. Much much quicker!!
-=-=- ''Load, Next List!''
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| Sun, 11 Sep 2016, 00:20 | |
spinal
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So each pixel is 4x4 or the whole screen is 4x4?
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| Sun, 11 Sep 2016, 00:39 | |
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Jayenkai
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Wouldn't be much of a fractal at just 4x4 pixels! I basically reduced it to 1920/4 x 1080/4, and it all sped up nicely. Bloody fractals! I'm going to fiddle about with the single-frame renderer a bit, today, make a nice little "app" of it, then post the sourcecode later for you. -=-=- ''Load, Next List!''
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| Thu, 15 Sep 2016, 23:30 | |
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Jayenkai
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View on YouTube
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| Fri, 16 Sep 2016, 01:09 | |
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rockford
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I really liked that, mainly because I love the original game and music so much. Bruce Lee was/is a classic. One of only a few US Gold games that I actually like.
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| Fri, 16 Sep 2016, 20:22 | |
Dabz
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Canny!!!  Dabz
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