After Effects Multiple instances hangs when rendering using PHP and Command Line
  • LaL XaDaLaL XaDa
    I am trying to render video from Adobe After Effects using PHP through command line. When i try to render video from After effects render Queue, i can see in Task Manager that all CPU cores are using. i have following PHP script which takes AE template file and render video.

        <?php
          exec('aerender.exe -project myproject.aepx -comp "Final" -mp  -output video.mov')
        
         // -mp - Additional processes may be created to render multiple frames simultaneously
        ?>

    When i execute this PHP file from command line like
        
        php /path/to/above_script_file.php

    its working fine too. All CPU cores are using and video is rendering.


    image



    **BUT** when i execute same script from browser using WAMP server, rendering starts, all instances get starts but suddenly close and 1 or sometimes 2 After effects instances are running but in hanged position. No memory or CPU is changing. 

    image


    These are my After Effects preferences

    image


    **UPDATE:**
    When i am trying to render using below command
        aerender -project /path/ -comp Final -mp -output out.mov

    its working and using multiprocessing. but when trying to render from web app it show below error message in log file

        There is an error in background rendering so switching to foreground rendering after 0 frames completed out of total 601 frames.

    Message interpretation:

        The multiprocessing feature was unable to use all instances beyond a     certain point in the rendering process. This is an error that only shows     in the render log file.
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