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I compiled Ron Parker's SuperPatch for MSDOS POV-Ray 3.1e
basically by dumping all the SuperPatch source files on top of
the DOS 3.1e source distribution, then shovelling the
filenames of files unique to the SuperPatch into the
djgpp makefile. The thing compiled (using djgpp) with amazingly
few problems. I have only begun testing superpatch stuff, but
everything i have tested works very nicely, except the
parametric function objects. Often in the tokenizing or
rendering of parametric function objects, the SuperPatch
POV crashes with SIGSEGV. And when it doesn't crash, there
is, at best, one black object with no pigment which is probably the
parametric surface.
After compiling with debugging on, it never gets so far as rendering
anything. It crashes during 'tokenize' and as close as I can determine
the crashes happen in mem.c on freeing some memory (again, only with
parametric functions).
I have not tracked this down any better so far because
of lack of time. I worry that there is a bug in the
parametric object code (i.e., not just in my half-assed
compilation).
Does anyone know or can guess what the problem is from this
sketchy information?
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On Mon, 07 Jun 1999 13:03:00 -0400, david sharp wrote:
>Does anyone know or can guess what the problem is from this
>sketchy information?
Can you send me the scene you're trying to render so I can try
it on my copy here?
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Just curious...When will it be ready and where can we get it then?
PS: it=SuperPatch 3.1e
PS2: Did you like the logo I made?
--
Anthony L. Bennett
http://welcome.to/TonyB
Graphics rendered
by the Dreamachine.
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On Mon, 07 Jun 1999 15:03:43 -0400, TonyB wrote:
>Just curious...When will it be ready and where can we get it then?
Soon, and I don't know yet. I've given up on trying to give a date,
because they keep slipping. It will probably be on my personal web
space somewhere. i'll post a message here the minute it's available.
(and my ISP will probably terminate my account a minute later. :) )
>PS2: Did you like the logo I made?
I've only gotten two submissions for my impromptu splash screen contest.
I liked yours, though I prefer to not have my own name displayed so
prominently (after all, other people did most of the real work.) I
also liked the other one, whose submitter I have temporarily forgotten,
for entirely different reasons. I'll probably keep something like the
current logo for this release and do the logo thing for the next release
(probably not too long after - I still need to add dispersion, among
other things) so keep those entries coming. Or rather, start those
entries coming.
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Here is just one example of a parametric{function{}} object which causes
my MSDOS compilation of SuperPatch to crash:
/* -------------------------------------------------*/
#include "colors.inc"
// the surface
#declare Helicoid=parametric{
function
v*cos(4*u),
u,
v*sin(4*u)
<-pi/2,-1>, <pi/2, 1>
accuracy 0.001
//precompute 15, [x,z]
}
object{
object{
Helicoid
texture {pigment{Yellow} }
/*
clipped_by{sphere{<0,0,0>,1}}
*/
}
rotate <0,70,0>
scale 6
}
camera
{
location < 16, 11,-16>
look_at < 0, 0, 0>
}
light_source { <20, 10, -20> color rgb 1 }
background{White}
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On Mon, 07 Jun 1999 20:19:27 -0400, david sharp <dsh### [at] interport net>
wrote:
>Here is just one example of a parametric{function{}} object which causes
>my MSDOS compilation of SuperPatch to crash:
My god, it's full of bugs!
f_param.c has a few problems. It'll be fixed for the release.
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