batch-filepovray

Render multiple POV-Ray scenes on Windows


I have a whole bunch of POV-RAY files from a molecular dynamics simulation with the general name "frameXX.pov" where "XX" is the number of the frame. I want to render them all but I have like 500 so I really don't wanna do it by hand. I'm sure there is a way to do this from the command line or a batch file...what would be the best way to do it? Thanks for the help :)


Solution

  • Since your question is 2 months old, I presume your problem will be solved by now. But I want to explain for other SOers interested in the matter.

    You can run a POV-Ray script a number of times in a parameterized loop. A typical way to describe the loop parameters is by writing a .ini-file.

    Input_File_Name=somegreatscene.pov
    
    ; these are the default values
    Initial_Clock=0.000
    Final_CLock=1.000
    
    ; usually you'll start with Frame 0...
    Initial_Frame=50
    Final_Frame=100
    
    Height=640
    Width=480
    

    The two parameters you can use in your script are clock_ and frame_number. clock_ is a float value by default varying from 0 for the first frame to 1 for the last. The clock_ step is determined by the number of frames to be rendered, in the above example the first frame will be rendered with a clock_ value of 0, the next with 0.02, then 0.04 and so on. Alternatively you can use frame_number, which is an integer counter, in this case 50 for the first frame to 100 for the last one.

    By default POV-Ray 3.7 will use all available CPU cores for rendering, but version 3.6 runs on a single core only. However you can run more than one instance of POV-Ray simultaneously, and let each instance render part of all the frames by adding these lines to the .ini-file:

    ; render the first half of frames 50 to 100
    Subset_Start_Frame=50
    Subset_End_Frame=75