11-01-2010, 02:08 PM
Yes, you are right, I thought the same about viewport from the beginning, but was confused by scissors method. I've re-tested scaling viewport according to canvas coordinates after modifying scissors and it works now. So the same effect as of viewport disabling can be gained from viewport scaling.
About magnification filter I think there's no need to use it when the screen is not enlarged. Minification filter theoretically may improve the image quality in some cases but right now I couldn't find an psp application to test if we really need to use it.
2D applications and video playing will improve from using of linear filtering.
3D applications will improve from using of scaled viewport, linear filtering and anti-aliasing.
About magnification filter I think there's no need to use it when the screen is not enlarged. Minification filter theoretically may improve the image quality in some cases but right now I couldn't find an psp application to test if we really need to use it.
2D applications and video playing will improve from using of linear filtering.
3D applications will improve from using of scaled viewport, linear filtering and anti-aliasing.