Re: [pygame] Blit a surface with mask

[Ian Mallett <geometrian@xxxxxxxxx>]

On Fri, Jul 13, 2012 at 11:00 AM, Ricardo Franco <ricardo.krieg@xxxxxxxxx> wrote:

Hi, I have a surface where a play a movie:

background = "" 480))

video = pygame.movie.Movie('video.mpg')

video.set_display(background)

video.play()

And I have a black-white surface to use as mask:

mask = pygame.image.load('mask.png')

I want to 'crop' the video. Dont know if have to blit the video in the mask, or the reverse. Or to merge both into a new surface.

How do it?

The simplest possible way I can think of is to draw the video to an intermediary surface, then blit only a rectangle of that intermediary surface to your destination.