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From: dick balaska
Subject: Stream output files must reside in same directory as image output file.
Date: 22 Mar 2016 13:22:24
Message: <56f17f50$1@news.povray.org>
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This seems like a rather obtuse restriction.
I'm running PovClipse with povray 3.7 and PovClipse generates a .ini
file with:
Input_File_Name="C:\home\dick\workspace\runtime-EclipseApplication\b\scene\test.pov"
Output_File_Name="c:\tmp\test.png"
Debug_File="C:\home\dick\workspace\runtime-EclipseApplication\b\.metadata\povray_console_debug.txt"
Everything in .metadata is magic invisible foo. i.e. the povray streams
get swallowed up by the gui. But I don't want it to swallow up the
output .png file. ;)
I'm not sure what to do about this.
--
dik
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From: clipka
Subject: Re: Stream output files must reside in same directory as image outputfile.
Date: 22 Mar 2016 14:00:29
Message: <56f1883d@news.povray.org>
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Am 22.03.2016 um 18:22 schrieb dick balaska:
> This seems like a rather obtuse restriction.
Consider rendering a scene that you got from some other user, complete
with an associated .ini file.
Do you really want to have to check that the .ini file doesn't happen to
include
Debug_File="C:\a\file\that\is\very\important\to\you.txt"
in case the other person happens to have the habit of redirecting the
debug output there (not to mention the possibility of malicious intent)?
So it's not /totally/ bananas.
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From: Le Forgeron
Subject: Re: Stream output files must reside in same directory as image outputfile.
Date: 22 Mar 2016 14:05:39
Message: <56f18973@news.povray.org>
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Le 22/03/2016 18:22, dick balaska a écrit :
> This seems like a rather obtuse restriction.
> I'm running PovClipse with povray 3.7 and PovClipse generates a .ini file with:
>
> Input_File_Name="C:\home\dick\workspace\runtime-EclipseApplication\b\scene\test.pov"
> Output_File_Name="c:\tmp\test.png"
>
Debug_File="C:\home\dick\workspace\runtime-EclipseApplication\b\.metadata\povray_console_debug.txt"
>
> Everything in .metadata is magic invisible foo. i.e. the povray streams get
swallowed up by the gui. But I don't want it to swallow up the output .png file. ;)
>
> I'm not sure what to do about this.
>
It's a choice made in source/frontend/renderfrontend.cpp, circa line 286. with
variation on the operating system:
The path must not have a volume and must not have any directory component.
unix: non empty volume for path starting with "/", directory components are separated
with ulterior "/".
windows: non empty volume are either "<letter>:" or start with "\\".
Drive letter must be absolute path (so third char is "/") and relative \\ path are not
supported.
With current choice, one possibility on unix would be to create a symlink in picture
directory to have the text file somewhere else (create a dangling link, then render):
Input_File_Name="mesh2sdl.pov"
Output_File_Name="zoo/mesh2sdl.png"
Debug_File="debug.txt"
$ ls -lR
.:
total 232
-rw-rw-r-- 1 jerome jerome 90 mars 22 18:52 mesh2sdl.ini
-rw-rw-r-- 1 jerome jerome 97256 mars 19 05:30 mesh2sdl.png
-rw-r--r-- 1 jerome jerome 1554 mars 19 05:30 mesh2sdl.pov
-rw-rw-r-- 1 jerome jerome 122098 mars 19 05:14 meshsdl.png
-rw-r--r-- 1 jerome jerome 1782 mars 19 05:14 meshsdl.pov
drwxrwxr-x 3 jerome jerome 4096 mars 22 18:53 zoo
./zoo:
total 28
lrwxrwxrwx 1 jerome jerome 16 mars 22 18:53 debug.txt -> foobar/debug.txt
drwxrwxr-x 2 jerome jerome 4096 mars 22 18:53 foobar
-rw-rw-r-- 1 jerome jerome 24434 mars 22 18:53 mesh2sdl.png
./zoo/foobar:
total 0
-rw-rw-r-- 1 jerome jerome 0 mars 22 18:53 debug.txt
So... kind of not a big problem... for unix.
The purpose of the code in renderfrontend is to avoid messing with filesystem (against
offensive scene):
if you allow a scene to write in c:\Windows\whatever.dll, you can kill the operating
system.
(for default installation, in English; I know some German user which use a different
directory)
I do not know if you can perform the same link trick on Windows... not available here
for test.
If you cannot, either you find a way for eclipse to look at the rendering directory,
or you will need your own compilation with a patch to avoid such check (and that's
dangerous).
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From: dick balaska
Subject: Re: Stream output files must reside in same directory as imageoutputfile.
Date: 22 Mar 2016 15:00:40
Message: <56f19658$1@news.povray.org>
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Am 2016-03-22 14:00, also sprach clipka:
>
> So it's not /totally/ bananas.
Yes, that makes total sense. (Way more sense than hardcoding 80 as the
line width in the *constructor* of a stream class... but I digress)
Am 2016-03-22 14:05, also sprach Le_Forgeron:
> If you cannot, either you find a way for eclipse to look at the rendering directory,
yes, I think what I'll do is
$ cd output_dir
$ launch_povray
and then make eclipse deal with the streams in that directory.
> or you will need your own compilation with a patch to avoid such
check (and that's dangerous).
While I do use my own compilation, I don't want to remove this feature.
I'm sold on its usefulness.
And I'm totally uninterested in creating something that would have no
chance of ever being accepted in povray proper.
--
dik
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From: dick balaska
Subject: Re: Stream output files must reside in same directory as imageoutputfile.
Date: 23 Mar 2016 05:18:27
Message: <56f25f63$1@news.povray.org>
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Am 2016-03-22 14:05, also sprach Le_Forgeron:
> or you will need your own compilation with a patch to avoid such check (and that's
dangerous).
My whole renderfarm ( http://www.buckosoft.com/bsac/ ) is designed to be
public. My thought was I would share my servers with someone else while
I get to use their box as well.
But I never opened it up because it would be a week before someone tried
to take down my boxes "just to see what would happen". And I don't want
to deal with that.
(The other thing I foresee is someone creating a high priority 10 month
job and firing that off on every server "just to see which one finishes
first")
--
dik
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From: Christian Froeschlin
Subject: Re: Stream output files must reside in same directory as imageoutputfile.
Date: 23 Mar 2016 12:56:06
Message: <56f2caa6$1@news.povray.org>
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On 22.03.2016 19:00, clipka wrote:
> So it's not /totally/ bananas.
No, but maybe it should be tied to "Script I/O restrictions".
I just tried and when I disable that I can write the output image
in any directory (and overwrite a txt file next to it). Allowing
location for stream would seem to be ok with same level of trust.
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