Sprites quality is very bad in Game window in Unity

Question

I have created a 2D project. The images I used for sprites are all with high resolution. However I do not know what settings I have changed today, the sprites in game window started look terrible when I tested the game(good quality in scene window). And this happens to all of the projects I created earlier. But when I build the exe file to play, the graphics look all good with original quality. Could anyone tell me how to fix this issue?

Answer 1

Scale back the game view to 1x and change the size of your camera instead or set your sprites to their original size if they have been resized

Answer 2

If you have a Retina screen, make sure you uncheck the following checkbox.

Watch this screencast

Answer 3

For 2D game also make sure Projection property in Camera component is set to Orthographic