Im making a 2d multiplayer PC game. It is very important that I am able to support multiple resolutions while keeping it fair for everyone.
portal is a 3d game. 3d game graphics are represented using points in space and equations kind of like vector graphics and can be scaled without any quality loss. If I were to draw my sprites for 1366x768 and scale to fit higher resolutions such as 1920x1080 and 1600x900,there would be reduction in image quality because the scaling algorithm will have to do some guesswork to essentially fill in the blanks.
I am wondering if however drawing sprites for say a hypothetical 3940x2160 resolution display and downscaling them to fit the required resolutions would result in negative effects on the image quality?