Dink Software

Here's a very simple function for "anaglyphing" PyGame surfaces. I heared somewhere that screen blending works best, but PyGame doesn't seem to support it. I tried to roll my own, but I couldn't fathom a way to do it. I also tried stripping out the colour channels in a more sohpisticated way, but it appears it would have been overkill (multiply-blending solid colour surfaces seems to work).

This isn't really appropriate for real-time "anaglyphing" as it runs quite slowly (tested with my paticle system). Although, your mileage may vary.

Code: Select all

import pygame

def anaglyph(source, xoffset):
   
   left = source.copy()
   right = source.copy()
   
   surface = pygame.surface.Surface(left.get_size())
   
   left_filter = pygame.surface.Surface(left.get_size())
   left_filter.fill((255, 0, 0))
   
   right_filter = pygame.surface.Surface(right.get_size())
   right_filter.fill((0, 255, 255))
   
   left.blit(left_filter, (0, 0), None, pygame.BLEND_MULT)
   right.blit(right_filter, (0, 0), None, pygame.BLEND_MULT)
   
   surface.blit(left, (0-xoffset, 0), None, pygame.BLEND_ADD)
   surface.blit(right, (0+xoffset, 0), None, pygame.BLEND_ADD)
   
   return surface


I tried to make a little utility out of it, but I can't seem to get it to work at the moment.

Original source image

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Resulting anaglyhped image

That's cool! I had to loop up Wikipedia to see what analglyphs were lol, then I realized its the 3d effect.

Do these anaglyphs actually look 3d through 3d glasses (as in 3d movie cheap glasses not the $200 3d television glasses you can buy)?

Your image looks pretty good to me and there's not a whole lot of code either. I am working on one of the components for TBS and the code is growing rather large and intricate lol.