I see this code in fractalp.c:
/*
type math orbitcalc fnct per_pixel fnct per_image fnct
|-----|----|--------------|--------------|--------------| */
struct alternatemathstuff alternatemath[] =
{
#define USEBN
#ifdef USEBN
{JULIAFP, 1,JuliabnFractal,juliabn_per_pixel, MandelbnSetup},
{MANDELFP,1,JuliabnFractal,mandelbn_per_pixel, MandelbnSetup},
#else
{JULIAFP, 2,JuliabfFractal,juliabf_per_pixel, MandelbfSetup},
{MANDELFP,2,JuliabfFractal,mandelbf_per_pixel, MandelbfSetup},
#endif
/*
NOTE: The default precision for bf_math=BIGNUM is not high enough
for JuliaZpowerbnFractal. If you want to test BIGNUM (1)
instead
of the usual BIGFLT (2), then set bfdigits on the command to
increase the precision.
*/
{FPJULIAZPOWER,2,JuliaZpowerbfFractal,juliabf_per_pixel,
MandelbfSetup },
{FPMANDELZPOWER,2,JuliaZpowerbfFractal,mandelbf_per_pixel,
MandelbfSetup},
{-1, 0,NULL, NULL, NULL
}
};
The cross-reference reports that JuliabfFractal is unused as a result.
I looked through the rest of the code and couldn't find any other
reference to JuliabfFractal and USEBN isn't used anywhere else either.
CVS says Tim added this code on revision 1.3.
Tim, is the intention to ultimately remove the bf code in favor of the
bn code?
--
"The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download
<http://www.xmission.com/~legalize/book/download/index.html>
Legalize Adulthood! <http://blogs.xmission.com/legalize/>
For many years the fractint team has used simple diff files and
occasional complete zipped source packages to communicate versions.
This worked well. Everything was public and anyone could follow
along.
The CVS repository is relatively recent. Jonathan started it and
we're still puzzling over how to organize it. Jonathan has put out
diffs and source packages for changes he committed to CVS, so no one
is cut out; CVS acess is not a prerequisite for permitting.
There are two hosts and two CVS repositories. Both of these require
shell access on the respective hosts.
Damien Jones manages fractint.org users on his host at our request.
He has say over who he is willing to give access to - after all, he
is donating his hosting to the team. Very few people have access, and
not all those who have access use it - it's basically Jonathan and
myself.
I have purchased space from a shared hosting provider, and hosted
fractint.net there (a mirror of fractint.org) We made a copy of CVS
and added Rich at his request so he can use CVS help with his
refactoring the video interface. I control who has access to
fractint.net.
It will be mostly Rich's call when to make what he is doing public.
He would probably find it distracting to have anyone looking over his
shoulder before he's ready.
It would be great to have an increase in participation on the
developer team. Rich's branch may make that possible, but probably
not until he gets it to a working alpha version. We can rethink the
mechanics of CVS/Subversion access as needs dictate.
I hope this helps expain the current setup.
Tim
Also, for anyone else out there that wants to compile the branch; it
should compile just fine with the Visual C++ 2005 Express Edition that
is available for free download from Microsoft's site.
You won't be able to build the deployment project, but you should be
able to build the code and an EXE, although I haven't tried it with
the express edition yet. It will convert the solution and project
file to 2005 format and then it should just work.
--
"The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download
<http://www.xmission.com/~legalize/book/download/index.html>
Legalize Adulthood! <http://blogs.xmission.com/legalize/>
I made a 16x16 favicon.icon and put it in the root directory of both
fractint.net and fractint.org. It's just the default mandelbrot,
which seems as good an image as any. I also added this statement to
index.html in <head> </head> secion:
<link rel="shortcut icon" href="/favicon.ico" type="image/x-icon" />
If you are not familiar with this, the little image shows in the URL
field of your browser. Seems to work for FireFox. Works with IE 7.0
on fractint.net but not fractint.org. It is supposed to show in
subdirectories also.
If anyone knows anything about favicons, let me know if I did it
right. At first it only showed in the top directory, I fooled around
with it and now it seems to show in subdirectories, not sure what I
did. On other sites I manage I just placed the favicon image in the
root directory and everything just worked.
We haven't talked about this, but I registered fractint.net and am
hosting it on one of the cheap shared hosts (dreamhost). It has a
mirror of fractint.org which is at fractalus.
Tim
I thought I had given all of these away, but I found about 8 more in
the basement while cleaning up last weekend.
Tim and Jonathan: do both of you have a copy of this? If not, email
me your USnail address off-list and I'll send you one.
--
"The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download
<http://www.xmission.com/~legalize/book/download/index.html>
Legalize Adulthood! <http://blogs.xmission.com/legalize/>
In calcfrac.c, routine StandardFractal, the HEAD has this comparison:
line 2212:
if (cmp_bf(abs_a_bf(sub_bf(bftmp,bfsaved.x,bfnew.x)), bfclosenuff) < 0)
if (cmp_bf(abs_a_bf(sub_bf(bftmp,bfsaved.y,bfnew.y)), bfclosenuff) < 0)
caught_a_cycle = 1;
notice that its two calls to cmp_bf(..., ...).
In the float-only version, the same code has this comparison:
if (cmp_bf(abs_a_bf(sub_bf(bftmp,bfsaved.x,bfnew.x)), bfclosenuff) < 0)
if (cmp_bn(abs_a_bf(sub_bf(bftmp,bfsaved.y,bfnew.y)), bfclosenuff) < 0)
caught_a_cycle = 1;
With one call to cmp_bf and one to cmp_bn.
Does anyone remember fixing this bug? The first one looks correct to me.
--
"The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download
<http://www.xmission.com/~legalize/book/download/index.html>
Legalize Adulthood! <http://blogs.xmission.com/legalize/>
In looking at differences between the float-only version and the head,
I'm seeing a number of changes relating to recognizing the '*' at the
start of the fractal name.
What is the nature of this change and what does it do?
Should I prefer the float-only code which doesn't check for names
starting with *, or should I prefer the code on the head?
--
"The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download
<http://www.xmission.com/~legalize/book/download/index.html>
Legalize Adulthood! <http://blogs.xmission.com/legalize/>
