Culling offscreen sprites?

[Jacob Weinbren]

Hi all!

How would I make a project where I would render about 300 sprites on a screen and cull those offscreen? Also considering scrollx and y from keyboard. I'm using pyglet.

Thanks.

Aj.

[Ryexander]

I achieved this by maintaining a Numpy array of the sprites and using array slicing and masking to remove off screen sprites. 

I maintain a parallel array of true false values for if the corresponding sprite in on or off the screen and then use it as a mask for the numpy array.