I have generated a large Maze (500 x 500) in Unity and want to reder it.
I have a white rectangular sprite as a wall and render the top and left wall for each cell of the maze. For the cells at the right I render the right wall and for cells at the bottom I render the bottom wall to.

This works great on smaller mazes (like 100 x 100), but if I render bigger mazes some walls are not rendered.

maze Render

I think this is because as this scale the field of view is very large and somtimes a wall is between two pixels and does not get rendered.

If I zoom in on the big maze everything gets rendered.

How do I fix this?
Can I do something so if a wall is between two pixels it snaps to the closer pixel.

Or maybe I could draw the pixels of the wall directly. But how do I do that?