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→Emulation issues
Jittering polygons are caused by low-precision fixed-point (to the native res, essentially) math. And more accurate math where relevant helps, i.e. [[Recommended_PSX_Plugins#Video|GTE Accuracy]]. Though it can often create holes in the seams.
The PS1 hardware didn't have a [https://en.wikipedia.org/wiki/Z-buffering z-buffer]. The lack of a z-buffer causes things like polygons popping over others. Tekken character limbs are a good example to see that.Its theoretically possible to implement Z-Buffer in PSX emulators/GPU plugins.[http://translate.google.com/translate?depth=1&hl=en&ie=UTF8&prev=_t&rurl=translate.google.pl&sl=ru&tl=en&u=http://forum.emu-russia.net/viewtopic.php%3Fp%3D17237]
No texture perspective correction causes distortion to texture angles at certain viewing angles. Notably at the bottom near the camera. Which probably could be mitigated with proper texture filtering if someone implemented it.
==PlayStation Resources==
