Difference between revisions of "Mpng"

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Be sure to disable '''[[cache_frames]]''' when issuing this operation on a long movie (>100 frames) to avoid running out of memory.
 
Be sure to disable '''[[cache_frames]]''' when issuing this operation on a long movie (>100 frames) to avoid running out of memory.
  
===USAGE===
+
== Usage ==
  mpng prefix [, first [, last]]
+
 
 +
  mpng prefix [, first [, last [, preserve [, modal [, mode [, quiet
 +
    [, width [, height ]]]]]]]]
  
 
Options "first" and "last" can be used to specify an inclusive interval over which to render frames.  Thus, you can write a smart Python program that will automatically distribute rendering over a cluster of workstations.  If these options are left at zero, then the entire movie will be rendered.
 
Options "first" and "last" can be used to specify an inclusive interval over which to render frames.  Thus, you can write a smart Python program that will automatically distribute rendering over a cluster of workstations.  If these options are left at zero, then the entire movie will be rendered.
  
===PYMOL API===
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== Arguments ==
 +
 
 +
* '''prefix''' = string: filename prefix for saved images -- output files will be numbered and end in ".png"
 +
* '''first''' = integer: starting frame {default: 0 (first frame)}
 +
* '''last''' = integer: last frame {default: 0 (last frame)}
 +
* '''preserve''' = 0/1: Only write non-existing files {default: 0}
 +
* '''modal''' = integer: will frames be rendered with a modal draw loop
 +
* '''mode''' = int: 2=ray, 1=draw, 0=normal {default: -1, check [[ray_trace_frames]] or [[draw_frames]]}
 +
* '''width''' = int: width in pixels {default: current [[viewport]]}
 +
* '''height''' = int: height in pixels {default: current [[viewport]]}
 +
 
 +
== Python API ==
 
<source lang="python">
 
<source lang="python">
cmd.mpng( string prefix, int first=0, int last=0 )  
+
cmd.mpng(str prefix, int first=0, int last=0, int preserve=0,
 +
    int modal=0, int mode=-1, int quiet=1,
 +
    int width=0, int height=0)
 
</source>
 
</source>
  
 
[[Category:Commands|Mpng]]
 
[[Category:Commands|Mpng]]

Latest revision as of 02:58, 31 January 2019

mpng writes a series of numbered movie frames to png files with the specified prefix. If the ray_trace_frames variable is non-zero, these frames will be ray-traced. This operation can take several hours for a long movie.

Be sure to disable cache_frames when issuing this operation on a long movie (>100 frames) to avoid running out of memory.

Usage

mpng prefix [, first [, last [, preserve [, modal [, mode [, quiet
    [, width [, height ]]]]]]]]

Options "first" and "last" can be used to specify an inclusive interval over which to render frames. Thus, you can write a smart Python program that will automatically distribute rendering over a cluster of workstations. If these options are left at zero, then the entire movie will be rendered.

Arguments

  • prefix = string: filename prefix for saved images -- output files will be numbered and end in ".png"
  • first = integer: starting frame {default: 0 (first frame)}
  • last = integer: last frame {default: 0 (last frame)}
  • preserve = 0/1: Only write non-existing files {default: 0}
  • modal = integer: will frames be rendered with a modal draw loop
  • mode = int: 2=ray, 1=draw, 0=normal {default: -1, check ray_trace_frames or draw_frames}
  • width = int: width in pixels {default: current viewport}
  • height = int: height in pixels {default: current viewport}

Python API

cmd.mpng(str prefix, int first=0, int last=0, int preserve=0,
    int modal=0, int mode=-1, int quiet=1,
    int width=0, int height=0)