![ibnMEESc46Rq87.jpg](http://i.minus.com/ibnMEESc46Rq87.jpg)
Here we have an image, roughly 3ds sized, on the left we have the full image, the amount of visual data you would recieve with left eye, and right eye images put together. On the right, we have the left eye image ONLY, which is what the 3ds uses for 2d mode, which is what is being shown in the videos. in order to fill those gaps for 2d mode, 3ds simply stretches the pixel lines over to fill the gaps.