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Goeland86 02-13-2004 09:41 PM

Pvmpov 3.5 help?
Hi, we're working on a rendering Beowulf cluster. We being a high-school advanced linux class. We really like modelling with blender, and I personally understand it alot. But for rendering, the program we use is povray, or actually pvmpovray. The version 3.1g2 works perfectly. However, the export script from blender to povray is only compatible with the version 3.5 of povray. I downloaded a CVS version of Pvmpov_3_5, but no luck, even with successful compiles, it crashes when it renders on a PVM network... On a single machine it renders fine. The error is either a Scene File Parser initialisation error or a "Broken Pipe" error... Help anyone?

funkymunky 02-21-2004 11:40 AM

hello, mate

sorry, i cant help you..but i hope u can help me ;-)

im trying to run pvmpov (3.1g2), the same as you (hey that rhymes)
iv installed povray 3.1

all the compiles were done from source (obviously)

but this is whats happening:

when i type:

[root@localhost povray31]# pvmpov +I./scenes/camera1e.pov +L./include +Oabc.tga

//note that the same error occurs with any *.pov file

blah blah blah...........
more blah................

Render Stream to console........On
Statistics Stream to console....On
Warning Stream to console.......On
libpng: Application was compiled with png.h from libpng-1.0.3
libpng: Application is running with png.c from libpng-1.2.2
libpng: Incompatible libpng version in application and library

File init error.
Error allocating PNG data structures
[root@localhost povray31]# rpm -q libpng

how is this possible?? i had the source packages of pvmpov and povray (v3.1), and i had compiled them..then how come there is a mismatch in the versions of libpng??


can u help?



Goeland86 02-21-2004 12:07 PM

uh, yes, we ran into the same problem here. When you go in the source code of pvmpov, you have to find the source file (probably conf.h or maybe png_pov.h or another one similar) and include your LOCAL png.h file instead of the one from your pvmpov source. This is because the png library on your system is the one loaded by pvmpov.
Hope this helps, I had the exact file name somewhere, but I got rid of the email too soon it seems.
Also, I finally got pvmpov 3.5 working, after a good deal of help from it's main developper.
You can find the source and binairy files on this website :
Good luck to you

funkymunky 02-21-2004 12:58 PM

thanx a ton..i was going to try the same i know theres a hope that itll work!

and i found the site u had refferd to using copernic agent..its a nice search tool..thanx again!



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