I have a computer with dual processor. And to take advantage of them both processors to render I make a .bat file (i´m not programmer). Let us suppose that my .blend has thousands frames, I am making bat that opens blender and render from the 1 to the 500 and other to render from the 501 to the 1000. It works well but only opens one instance of blender, it begin to render and it does not open the other.
Anyone can help me?
This is the bat file:
blender -b ropa.blend -s 1 -e 499 -a
blender -b ropa.blend -s 500 -e 1000 -a