I’ve been trying out the video filters in RetroArch, but to my surprise, they look really weird compared to what how the same filters look like in in other emulators. For example, the Super2xSai looks really bad in RetroArch (using FCEUmm core) compared to how the same filter looks like in Jnes: http://i.imgur.com/MzPDiMY.png I’ve had similar issues with the SuperEagle filter.
Why is this happening and how can I fix this?