Make Letters look better

[LunaMoo]

If you're an artist see this and just create your own textures.

As for automatic scaling:
- xBRZ is fast upscaler that goals to make things sharper,
- Hybrid is xBRZ + reverse AA that's unoptimized and much slower,
- Bicubic is pretty slow and blurry,
- Hybrid + Bicubic is fantasy of people who doesn't know what they want - extremely slow and mixing 2 counter productive effects which definitely doesn't make it "best" in any shape or form, but often is for some stupid reason taken as such by being on the bottom of the list.

All of them run on CPU and even the fastest one xBRZ is too slow to be active all the time hence PPSSPP tries to avoid upscaling textures that change every frame, but sometimes it still has to scale things constantly which makes it very demanding and definitely not something to be used on slow cpu's. So there's really nothing weird in performance drop when using this, scaling in real time is just overkill.

There are also post process shaders which are much faster and running on gpu like 5xBR which will do similar work, but they force rendering to low res and will look bad in any game with 3D graphics.

There's also nothing weird in how they look. All of such scaling effects are designed to make up pixels where there's none, you can't design an algorithm to make things universally pretty and any screenshots of super pretty algorithms are typically taken on higher res sample images. When used in actual games from platform like PSP which has lots of very low res textures everything will often end up with weird unnatural shapes and look poor, it greatly depends on graphics style as it typically looks bad on any realistic-like graphics and also on your personal taste as some people just hate automatic scaling.


So really if you dislike the results you can't do anything outside of accepting the fact that you're playing very old low res games or using texture replacing as mentioned at the start of this post - which is a feature that requires lots of manual work allowing you to create whatever you want althrough it's not perfect either as some textures might be very bothersome or impossible to replace due to weird ways of how some PSP games abuse textures.

Edit: Oh and also the lines around certain 2D graphics seen there are just artifacts related to using rendering resolution which game was not designed to run in. It will show in many psp games and the only "proper" way of fixing it is by using x1 render res, but both scaling and replacement can work around it.