Difference between revisions of "Blender"

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==Description==
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[[Category:Software]][[Category:Graphics]]
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Blender is an integrated suite of tools enabling the creation of a broad range of 3D content with the singular benefits of cross-platform interoperability and an incredibly small download file size. It is the most popular Open Source 3D graphics application in the world, and is one of the most downloaded.
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{|<!--CONFIGURATION: REQUIRED-->
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|{{#vardefine:app|Blender}}
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|{{#vardefine:url|http://www.blender.org/}}
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<!--CONFIGURATION: OPTIONAL (1=ON)-->
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|{{#vardefine:exe|1}} <!--RUNNING -->
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|{{#vardefine:conf|}} <!--CONFIGS-->
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|{{#vardefine:pbs|}} <!--PBS SCRIPTS-->
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|{{#vardefine:policy|}} <!--POLICY-->
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|{{#vardefine:testing|}} <!--TESTING/PROFILING-->
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|{{#vardefine:faq|}} <!--FAQ-->
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|{{#vardefine:citation|}} <!--CITATION-->
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|{{#vardefine:installation|}} <!--INSTALLATION-->
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|{{#vardefine:tutorial|1}} <!--TUTORIAL-->
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|}
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<!--BODY-->
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<!--Description-->
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{{#if: {{#var: url}}|
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{{App_Description|app={{#var:app}}|url={{#var:url}}|name={{#var:app}}}}|}}
  
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==Location==
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3D graphics rendering
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/apps/blender/2.44
 
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==Command Line Arguments==
 
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<pre>
 
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Blender 2.44 (sub 0) Build
 
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Usage: blender [options ...] [file]
 
  
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Render options:
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<!--Modules-->
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  -b <file>    Render <file> in background
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==Environment Modules==
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    -S <name>  Set scene <name>
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Run <code>module spider {{#var:app}}</code> to find out what environment modules are available for this application.
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    -f <frame>  Render frame <frame> and save it
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==System Variables==
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    -s <frame> Set start to frame <frame> (use with -a)
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* HPC_{{uc:{{#var:app}}}}_DIR - installation directory
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    -e <frame>  Set end to frame (use with -a)<frame>
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<!--Additional-->
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    -o <path>  Set the render path and file name.
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{{#if: {{#var: exe}}|==Additional Information==
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      Use // at the start of the path to
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* Note: The server hardware that this will run on does not have any audio hardware built in, nor would it be audible since the hardware is installed in a separate room. As such, the blender command has been aliased so that the "'''-noaudio'''" flag is automatic.
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        render relative to the blend file.
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|}}
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      Use # in the filename to be replaced with the frame number
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<!--Configuration-->
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      eg: blender -b foobar.blend -o //render_# -F PNG -x 1
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{{#if: {{#var: conf}}|==Configuration==
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    -F <format> Set the render format, Valid options are..
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See the [[{{PAGENAME}}_Configuration]] page for {{#var: app}} configuration details.
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        TGA IRIS HAMX FTYPE JPEG MOVIE IRIZ RAWTGA
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|}}
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        AVIRAW AVIJPEG PNG BMP FRAMESERVER
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<!--PBS scripts-->
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    (formats that can be compiled into blender, not available on all systems)
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{{#if: {{#var: pbs}}|==PBS Script Examples==
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        HDR TIFF EXR MPEG AVICODEC QUICKTIME CINEON DPX
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See the [[{{PAGENAME}}_PBS]] page for {{#var: app}} PBS script examples.|}}
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    -x <bool>  Set option to add the file extension to the end of the file.
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<!--Policy-->
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    -t <threads>        Use amount of <threads> for rendering
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{{#if: {{#var: policy}}|==Usage Policy==
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WRITE USAGE POLICY HERE (perhaps templates for a couple of main licensing schemes can be used)
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Animation options:
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|}}
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  -a <file(s)>  Playback <file(s)>
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<!--Performance-->
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    -p <sx> <sy>        Open with lower left corner at <sx>, <sy>
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{{#if: {{#var: testing}}|==Performance==
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    -m          Read from disk (Don't buffer)
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DOUBLE_CLICK_TO_WRITE_PERFORMANCE_TESTING_RESULTS_HERE
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|}}
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Window options:
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<!--Faq-->
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  -w            Force opening with borders (default)
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{{#if: {{#var: faq}}|==FAQ==
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  -W            Force opening without borders
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*'''Q:''' **'''A:'''|}}
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  -p <sx> <sy> <w> <h>  Open with lower left corner at <sx>, <sy>
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<!--Citation-->
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                        and width and height <w>, <h>
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{{#if: {{#var: citation}}|==Citation==
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If you publish research that uses {{#var:app}} you have to cite it as follows:
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Game Engine specific options:
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DOUBLE_CLICK_TO_WRITE_CITATION_HERE
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  -g fixedtime          Run on 50 hertz without dropping frames
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|}}
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  -g vertexarrays      Use Vertex Arrays for rendering (usually faster)
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<!--Installation-->
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  -g noaudio            No audio in Game Engine
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{{#if: {{#var: installation}}|==Installation==
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  -g nomipmap          No Texture Mipmapping
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See the [[{{PAGENAME}}_Install]] page for {{#var: app}} installation notes.|}}
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  -g linearmipmap      Linear Texture Mipmapping instead of Nearest (default)
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<!--Tutorial-->
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{{#if: {{#var: tutorial}}|==Tutorial==
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Misc options:
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* There are a number of different tutorials on the [http://www.blender.org/support/tutorials/ Blender Tutorial] webpage.
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  -d            Turn debugging on
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|}}
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  -noaudio      Disable audio on systems that support audio
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__NOTOC____NOEDITSECTION__
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  -h            Print this help text
 
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  -y            Disable script links, use -Y to find out why its -y
 
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  -P <filename> Run the given Python script (filename or Blender Text)
 
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  -v            Print Blender version and exit
 
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</pre>
 
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As a note, all attempts so far to get the -o OUTPUTFILE option to work have been unsuccessful. Please be sure to define the output file location in the blend file itself.
 
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==Sample Script==
 
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<pre>
 
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#!/bin/csh -f
 
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#
 
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#PBS -N tux
 
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#PBS -r n
 
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#PBS -o tux.out
 
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#PBS -e tux.err
 
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#PBS -j oe
 
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#PBS -m abe
 
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#PBS -M <ADD EMAIL ADDRESS HERE!>
 
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#PBS -q submit@iogw2.local
 
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#PBS -l nodes=1:ppn=2
 
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#PBS -l pmem=400mb
 
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#PBS -l walltime=2:00:00
 
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set EXE = /apps/blender/2.44/blender
 
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cd /home/jka/
 
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$EXE -b Tux.blend -f 1 -x 1 -t 2
 
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</pre>
 
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Note that you should add your address to the appropriate line in this case. Also note that the walltime has been set to 2 hours. You will have to figure out through trial and error what the most appropriate amount of time for a rendering should be. In this particular example:
 
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* Blender will render the first frame of either a static or dynamic animation.
 
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* It will use two threads to perform this operation, hence defining that PBS should use two processors on a single node.
 
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* The output of the frame will be wherever it was defined in the blend file that was originally saved.
 
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Setting the proper path for the output in the blend file is '''critical''', as this is a batch based system and you will have no idea which computational node actually does the processing. Be sure to set the output path to a known location in the global filesystem, either /scratch/ufhpc or /home/<username>. The default in linux is to set this to /tmp, which will simply dump the output to that directory on the local computational node, which means you will not get the results.
 

Latest revision as of 13:03, 15 August 2022

Description

Blender website  

3D graphics rendering

Environment Modules

Run module spider Blender to find out what environment modules are available for this application.

System Variables

  • HPC_BLENDER_DIR - installation directory

Additional Information

  • Note: The server hardware that this will run on does not have any audio hardware built in, nor would it be audible since the hardware is installed in a separate room. As such, the blender command has been aliased so that the "-noaudio" flag is automatic.




Tutorial

Retrieved from "https://help.rc.ufl.edu/mediawiki/index.php?title=Blender&oldid=25112"