How to install POV-Ray 3.7 under Fedora 32

For those who would like to use POV-Ray 3.7 while running Fedora 32 Workstation, or some of the older releases (we tested Fedora 31 and 30 ourselves), here is how we got that to compile:

Version 3.7, the version we have come to know and love (and used in this iteration of this website and its content) can be installed, by ourselves, by entering the following in a Fedora Terminal window:

  cd /tmp

And then download the source code using:

  wget https://www.virtualbricks.nl/downloads/povray-3.7.0.8-stable.zip

Check the SHA-256 checksum for the just downloaded file:

  shasum -a 256 povray-3.7.0.8-stable.zip

Which should be:

  43136f3d9abcc2099da1a77b05a7ad10c6c622d2d64b4a46578978fbd24fd177

Now continue with:

  unzip povray-3.7.0.8-stable.zip
  cd povray-3.7-stable/unix


Now install the required dependancies using:

  sudo dnf install SDL-devel OpenEXR-devel autoconf automake make gcc-c++ cmake \
  boost-devel libXpm-devel libjpeg-turbo-devel libpng-devel libtiff-devel zlib-devel


Start compiling POV-Ray itself with the following commands:

  ./prebuild.sh
  cd ..
  ./configure COMPILED_BY="Your name <your email@address>" --with-x
  --disable-dependency-tracking
  sudo make install


When done with all of these steps, go to the Tips and tricks section on this page.

Should you wish to use the official Fedora repositories version, follow these few steps:

To install POV-Ray, open your Terminal by pressing the Super key and typing "terminal". Once opened, enter the following lines, executing each one by pressing the Return-key:

  sudo dnf install povray

  mkdir -p ~/.povray/3.7
  cp /etc/povray/3.7/povray* ~/.povray/3.7/


You should now be able to use the command line version of POV-Ray, by just typing the command:

  povray

which should give you an error message stating that "No input file provided".

Tips and tricks

• One of the advantages of the command line version of POV-Ray is the ability to render multiple renders simultaneously by opening extra Terminal windows and launching new renders from those extra windows. Of course you will get a speed penalty, your computing power gets divided by the number of renders you will be having simultaneously!

• You can also batch render! Just type:

  povray render_one.ini ; povray render_two.ini

substituting render_one.ini and render_two.ini with your own to be rendered filenames. The second render will start the very moment the first has finished!

• Should you need to pause a render, then use the following command, in another Terminal window:

  killall -STOP povray

To resume the rendering again, use:

  killall -CONT povray

• You have a render that needs to be done with a high(er) priority than the render(s) you have currently running? Simple, in a new Terminal window, type the following line:

  killall -STOP povray ; povray priority_render.ini ; killall -CONT povray

• And last but not least: you can use "Fire and forget" renders! Normally you would have to keep the Terminal window open while a render is in progress, however, when you type:

  nohup povray test.ini >/dev/null &

You may now close the Terminal window if need be, as long as the computer stays on, the render will continue in the background.

• When you want to have that background render not eat away all of your CPU abilities, add a line to the .ini file for your render, which contains the following:

  Work_Threads=the_number_of_threads

where you will replace the "the_number_of_threads" with the number of threads you can spare, for example when you have a quadcore CPU with Hyperthreading, set the number to 6, which should leave 2 threads for reading mail and browsing the internet.

• A fun fact about POV-Ray running under Fedora 32, something which the Mac version will not do, is that it supports showing the progress of your render, in a graphical window! You can enable this in the whichever_render_you_want_to_run.ini file, by changing the line:

  Display=off

into:

  Display=on

Then the preview render can be seen in a seperate window.

If you would like to cancel a render, you will have to bring the Terminal window to the front, Ctrl-c on a preview window will not do. When the render is done the preview window will be closed again, if you want to keep the resulting image opened, change the command to:

  povray test.ini ; eog resulting_output.png

You will also notice that both the macOS and the Linux versions of POV-Ray will not be "that accurate" when displaying the time taken to render your image... When you start a render with the time addition, then you will get the real time taken:

  time povray test.ini
 
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