filter/shader problem

[LunaMoo]

(03-10-2018 04:50 PM)ZeroX4 Wrote:  (...)im pretty sure they should not work like that(...)

That's because you don't understand what such filters do;p, they sample few neighboring pixels and generate a pattern based on that, that's why if applied to full screen and not just textures:
- it only will look good in fully 2D games, which uses full psp resolution,
- will look bad in 3D graphics, zoomed in/out 2D graphics, and also why edges of non-animated moving objects will due to different edge pattern affected by background feel weird.

In short, how it looks, is exactly how it should and how it will look;p.