How to render in Blender without slowing down the other programs

During the image rendering in Blender, it is impossible to do anything else, the computer is strong “brakes”. Blender takes all available computing power without leaving almost nothing to other applications.

In order to run render in Blender with a low priority, so that it does not fill the entire computer and is guaranteed not to slow down the other programs work, you need:

  • Switch the render mode to the CPU
  • Run the render in Blender from the command line:

Windows:

parameters used :

  • /LOW – means that Blender will be launched with the lowest priority, computing power will be allocated to it after the all other programs.
  • /MIN – the window will be minimized in the taskbar.
  • /B – no separate window for launching Blender.
  • /D _path_to_blender_directory_ – here you need to specify the path to the directory where Blender is installed. Since usually all programs are installed in the “Program Files” or “Program Files (x86)” directories (there are spaces in the directory name), you need to enclose it in quotation marks.
  • _full_path_to_blender_ – specify here the full path to the blender.exe file. Enclose it in quotation marks by the same rules.
  • -b – Blender background launch (no graphical interface is created).
  • _path_to_blend_file_ – the full path to the project you need to render. If there are spaces in the path, it must also be enclosed in quotation marks.
  • -f X – instead of X, you need to specify the number of the frame you need to render.
  • -t X1 – instead of X1 you need to specify the number of processor cores that would be allocated for rendering. It is worth to allocate the half of the available cores.

Example:

 

Linux:

used parameters:

  • -n 20 – means that Blender will be launched with the lowest priority, computing power will be allocated to it after the all other programs.
  • -b – Blender background launch (no graphical interface is created).
  • _path_to_blend_file_ – the full path to the project you need to render.
  • -f X – instead of X, you need to specify the number of the frame you need to render.
  • -t X1 – instead of X1 you need to specify the number of processor cores that would be allocated for rendering. It is worth to allocate the half of the available cores.

Example: