PSP native post-processing effects

[[Unknown]]

Games do all sorts of things. Some download the pixels and modify them on the CPU, using vector math or even just regular CPU math. Others render them on top of themselves with various kinds of blending and offset and shrunk UVs to create a blur effect. Others even use a clut (palette) to transform the colors and handle them differently.

But, there are no shaders on the PSP. The PSP's GE can do lots of things but you can't upload code that runs on it per pixel/vertex or anything like with OpenGL.

-[Unknown]