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Originally Posted by whitelamp So that means Super Mario World (uses superfx) will run like crap on the psp? |
There's two different versions of the FX chip.
One of them is internal (inside the SNES) and is used for 2D resampling and special 2D effects. It's also used for MODE7 (the semi-3D effect used for stuff like the racetracks in F-ZERO.) This is the chip that games like Super Mario World and the Final Fantasy series use. It does things like allowing sharper higher-res sprites, MODE7 for the world map in games like Final Fantasy 3 and Illusion of Gaia, and also nice effects like the rotating screen in Super Castlevania. These games usually run pretty well unless they overload the emulator (Star Ocean, Tales of Phantasia are good examples, they make heavy use of the internal FX chip, especially in battles.)
The other chip is external (comes on the circuit board in each game that uses it) and is used for rendering of flat-shaded polygonal (3D) objects. This is the chip that games like StarFox use. It's harder to emulate this chip for two reasons: 1. It's 3D. 2. It's built-in to the carts that use it, making it harder to properly hack/reverse-engineer.