Taking screenshots in a thread.

Scripting Issues
1

Taking a screenshot with base.win.saveScreenshot can easily take one second on my machine. That’s enough to miss a lot of collisions and it kills the framerate.

So I thought I’d just throw that in a thread. I never used threads before so I’m probably doing it wrong. It seems to work, but maybe I’m not locking/copying textures properly ?

I made this:

# Module `screenshot`
import threading

def _shoot(screen, file_name):
    print "Screenshot..."
    screen.write(file_name)
    print "...taken", file_name

def take(win, file_name):
    screen = win.getScreenshot()
    t = threading.Thread(target=_shoot, args=(screen, file_name))
    t.start()

And I call it like that:

class MyApp(ShowBase):
    ...
    def takeScreenShot(self):
        now = datetime.datetime.now().strftime('%Y-%m-%d_%H-%M-%S-%f')
        file_name = Filename(now + '.png')
        screenshot.take(self.win, file_name)

It seems to work, but I need to be sure. Is that code sane? Or will I see some weird tearing at some point while the texture I’m saving changes due to another render?