Pixelate Textures Properly

Pixelating textures is easy, but we need to write a 5-10 lines of code.
We put the texture in the objects which represents the pixelated texture and now we're going to write code. The reason the textures are not pixelated is the mipmapping method is linear if you've guessed it, we should set the mipmapping to none. Import the game engine module and we use the render class. From that class we should set setMipmapping() to 0 or bge.render.RAS_MIPMAP_NONE. So the code looks like this.

try:
    import bge
except:
    import Range as bge

cont = bge.logic.getCurrentController()
own = cont.owner
def main(cont):
    bge.render.setMipmapping(0)

Demonstration of mipmapping set to linear and none

In the image you can see the black lines when the mipmapping is set to linear and the the artifacts goes away when set to none.

Here we put the mipmap method inside main function. And our "always" sensor triggers this function only once, you can enable "Tap" too.
Here is the project file for this tutorial, Download now.