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Calling Blender from PHP/Python and Blender doesn't open

General Tech Bugs & Fixes 2 years ago

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Posted on 16 Aug 2022, this text provides information on Bugs & Fixes related to General Tech. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.

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manpreet Tuteehub forum best answer Best Answer 2 years ago

 

The code below is a simplified version of the process I am creating. On my local machine this process works fine, but on my companies server, it does not work. It will time out. One thing to note, when I look in the server task manager (Windows), Blender will start as a background process, but not active. In my regular process, Blender will render a file , but that does not happen in my full process. After the call to Blender, it never finishes. Below is a simplified version of my process.

Form to enter information

doctype html>
<body>

<form action="dosomething.php" method="post" enctype="multipart/form-data">
    <input type="text" name="time" placeholder="some number" id="time">
    <input type="submit" name="submit" value="Submit">
form>

body>
html>

PHP to take values and pass to python

doctype html>
<body>

php

$outputDir = "output/";
$outputDirFull = 'C:/xampp/htdocs/test/output/';
$errorDir = "error/";

//move spaces to all spaces in blender path; will be removed in CallBlender.py; necessary to pass to python
$blenderWithSpaces = 'C:/Program Files/Blender Foundation/Blender/blender.exe';
$blender = str_replace(" ","#",$blenderWithSpaces);
$blenderFile = 'blenderfile/test.blend';

$blenderScript = 'pythonfile/testscript.py';

//Specify python and CallBlender.py
$python = "C:/Users/Render/Anaconda3/python.exe";
$pyscript = "pythonfile/CallBlender.py";


$time = $_POST["time"];

//creating the command, and passing time and efficiency; spaces are kept in command because the quotes
$command ="$python $pyscript $time $blender $blenderFile $blenderScript $outputDirFull 2>&1";

//executing the command to call processing python program
exec($command, $output, $return_var);
?>
body>
html>

Python to call blender

import os
import sys
import subprocess

testfile = 'output/output.txt'

#read in values from PHP
time = sys.argv[1]
blender = sys.argv[2]
blenderFile = sys.argv[3]
blenderScript = sys.
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