c15400afc5
mandelbrot: remove always-false condition in fill_from_cache
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-13 19:41:21 +01:00
08dadd331f
mandelbrot: allow visualizing the period of converged points.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-13 19:28:24 +01:00
e8499ab171
mandelbrot: Add inner variable & enum for inner coloring schemes.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-13 19:26:22 +01:00
3cbe9afba5
mandelbrot: only check bailout once every 2 iterations.
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Once we bailed out we calculate the exact iteration in which it would have happened if needed.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-13 18:14:40 +01:00
41fd1b2d5a
mandelbrot: add SQR() macro
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-13 18:14:10 +01:00
e555119c73
mandelbrot: correct and simplify the formula used in NORMALIZED_ITERATION_COUNT
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Use log(sqrt(mb->bailout)) instead of log(mb->bailout) because mb->bailout represent
the bailout radius squared, and then simplify the two sqrt().
This is also slightly faster.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-13 17:33:09 +01:00
88166fc579
mandelbrot: unroll the innermost loop once.
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This allows us to remove a if() and a variable assignment.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-13 17:01:56 +01:00
1d06608732
mandelbrot: only check periodicity once for each period instead of twice.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-13 17:01:56 +01:00
2fee131b9e
mandelbrot: use period detection depening on left pixel and not the
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previous calculated pixel, this is more accurate due to the last
calculated often being farther away.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-13 17:01:56 +01:00
be97e7b9c2
mandelbrot: remove unused variables
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-13 01:27:30 +01:00
459bba58d2
mandelbrot: add missing options to the parsing code
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The following options were added: end_scale, end_pts, bailout, outer.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-13 01:27:30 +01:00
6024bdb21a
mandelbrot: fix sscanf format string
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Replace ',' with ':'
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-12 21:00:12 +01:00
32dd67162a
mandelbrot: Print a note if the cache is too small
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-12 17:05:11 +01:00
905202ef6e
mandelbrot: increase cache size
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-12 17:04:50 +01:00
fd8d03457a
mandelbrot: increase resolution, and decrease zoom speed to maintain the cpu requirement.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-12 17:04:08 +01:00
40d6e30c55
mandelbrot: increase default maxiter
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-12 16:46:41 +01:00
6c5dd858b4
mandelbrot: Only use cycle detection if previous pixel was an interior pixel
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-12 16:46:21 +01:00
50b8f9388a
mandelbrot: detect cycles to speed up interior rendering.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-12 16:46:16 +01:00
3de934c873
mandelbrot: increase default maxiter to 1024
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-12 16:44:53 +01:00
07f272bdbb
mandelbrot: use cache to avoid recalculating points.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-12 16:44:53 +01:00
8ca891fc1a
mandelbrot: more interresting zoom coordinates borrowed from wikipedia.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-12 16:44:53 +01:00
ddeb194b14
mandelbrot: add a end_scale and pts so we can zoom in.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-12 00:04:16 +01:00
dece017280
mandelbrot: center coordinate reference on the images center
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-12 00:04:15 +01:00
aa198ad679
mandelbrot: make 2 variables const
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-12 00:04:15 +01:00
0e5b05134b
mandelbrot: fix typo that led to hardcoded max iteration count.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-12 00:04:15 +01:00
4ccd898af2
mandelbrot: support different outer coloring methods.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-11 23:22:04 +01:00
75e309160b
mandelbrot: make bailout a variable
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-11 23:21:42 +01:00
658d166da0
avfilter: add mandelbrot fraktal source
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-11 22:47:06 +01:00
Giorgio Vazzana
Michael Niedermayer