K, so I recently decided to take up digital painting. And I am wondering, do I need to paint at the size I want to print? For example, if I want to print a 30x40 on canvas, do I need a 30x40 canvas inside Photoshop or Painter? Or could I get away with a smaller canvas, and then just upping its size when I'm preparing the print?
For that matter, do you have to paint at 300dpi or could you go from 150 and then make it 300 when you are about print? Would it make up for it or would the 300 mean nothing because you painted it at 150?
I ask mainly because Painter shits a mighty brick when I have a giant print-sized canvas with high DPi. And I have too much lag to paint. Photoshop is a little better, its bearable. But even if that wasn't the case, I'd still want to know the answer to the above two questions. I mean its basic stuff right, I need to learn.