Windows batch script to create png from stl

create_png_from_stl.bat

REM Install OpenSCAD (e.g. if using chocolatey run: choco install openscad -y)
REM Run batch script in root folder, this will recursively go into all sub folders.
echo off
call :treeProcess
goto :eof

:treeProcess
for %%f in (*.stl) do (
	if not exist "%%~nf.png" (
		echo import("%%f"); >"__tmp__%%f_tmp"	
		echo on 
		echo Creating "%%~nf.png" from "%%f" at "%CD%" 
		echo off
		c:/PROGRA~1/OpenSCAD/openscad.exe -o "%%~nf.png" --autocenter --viewall --imgsize=1080,1080 "__tmp__%%f_tmp" > nul 2>&1
	)
)
del __tmp* > nul 2>&1
for /D %%d in (*) do (
    cd "%%d"
    call :treeProcess
    cd ..
)
exit /b