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For more then 10 years, this file was not real changelog, but just a place
for temporary notes.

Things have to be changed. Soon.

In case of any questions, don't hesitate to contact the author:
Vladimir A. Smirnov, kkatarn@sleepgate.ru (kkatarn@rambler.ru or
smirnov@nocnt.ru)
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TODO:
	under 64-bit env (FreeBSD): mp3 decoder broken, *.zip file handling broken.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

11 aug 2010: initial parallel implementation for old psmod.
UPD: waiting at contitions takes too much time, consider to use spinlocks.

20 aug 2010:
	numerous changes in camctl.c - fixed to use new antiglut-style event
	names & handling. working.
	changed proto of vglReadPixels() - must pass width & height. not debugged.
	fixed strToFloat(). works both with '.' and ',', regardless to system
	locale settings. (TODO change for presence of both ',.' and use heuristics
	to determine the meanings of them).
TODO (64-bit env, FreeBSD):
	objLoad broken? (64-bit); fix face loading code.
	bgi font loader broken.

23 aug 2010:
obj loading code: seems to be Ok (debugged under Win32),
get rid of 'triangle list' code at all.

11 nov 2010:
merged code used for modeling frame composites and radiation heating.

18 nov 2010:
minor changes in psmod.

20 apr 2011:
minor changes in ipl_int

30 jun 2011, 07 jul 2011:
changes in psmod, added --nodraw. FIXME: rewrite it completely.
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09 nov 2011
For the purpose of porting some modeling code:
1) rangen.c, v_rgen.h - changes in ranInitState(), added ranDirection(),
	ranNextGaussianVec2().
2) spatial.c, v_space.h - removed vec3FromLineAndPlane(),
	added vec3InsideSphere(), plane3FromOriginNormal(),
	vec3FromLinePlane(), /* new one handles all possible positions */
	line3CommonVertical(), segCrossing().
3) added glvu.c and v_glvu.h in source tree, added bboxDraw(); changes in
	file names, mksrclist.bat.
10 nov 2011
4) numerous bugfixes in math code - had to enable macros again (function
	calls slows some code twice). No more v_fsincos.
11 nov 2011
Porting the toy program used for article http://sc.sleepgate.ru/2011/razmernyje
The example will be transformed into full-blown command-line modeling tool.
13 nov 2011
The rewrite is near the end.
Should implement some kind of postprocessing.
Added functionalily for domain check in lexNextFloat() / lexLastFloat():
	1) enum for lexEnable(), lexDisable(): LEX_FP_DOMAIN_CHECK.
	2) positive: lexSetInteger(lex, LEX_FP_DOMAIN, LEX_FP_DOMAIN_POSITIVE);
	/*
	unimplemented:
	3) negative: lexSetInteger(lex, LEX_FP_DOMAIN, LEX_FP_DOMAIN_NEGATIVE);
	4) nonzero: lexSetInteger(lex, LEX_FP_DOMAIN, LEX_FP_DOMAIN_NONZERO);
	5) nonpositive: lexSetInteger(lex, LEX_FP_DOMAIN, LEX_FP_DOMAIN_NONPOSITIVE);
	6) nonnegative: lexSetInteger(lex, LEX_FP_DOMAIN, LEX_FP_DOMAIN_NONNEGATIVE);
	*
	* ... or, better: add lexSetFloat(LEX_FP_REFERENCE_VALUE),
	* lexSetInteger(LEX_FP_DOMAIN_CHECK_PASS, LEX_FP_E / ...)
	*/
Both lexNextFloat() and lexLastFloat() are moved from "user space"
to "LibV space" (though all checks can be performed in "user space").
13 nov 2011, 23:00 MSK: rewrite have been completed. See demos/math/cmo.c.
14 nov 2011: minor bugfixes and cleanups, added time estimation facility.
The code is still completely unparallelized.
15 nov 2011: the example is in. TODO: fix genparse.c::parseIterator().
19 nov 2011: the program is prooved to be usefull. Last TODO: parallel
implementation (task sorting by esimated execution time and/or splitting
the contact matrix).
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31 may 2012
Added HSVA colorspace to IPL. Minor changes in bittrans.c
TODO: Adding-colorspace-HOWTO (in fact, will be very short)
Ancient xvid code removed from tree. TODO: update zlib.
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09 jul 2012
LibV can be compiled by mingw64 gcc 4.6 under NT 5.2. Code NOT tested.

02 oct 2012
psmod.alpha.GRA backport from 2011 branch. Should check the '-broken' branch!
UPD: the problem is NOT in -broken!
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may-june 2013:
Several important changes in psmod. The computation can now be resumed.
Extra checks are added. In case of no spherical shell, some code paths avoided.
