Devourer said:
PC-Engine said:
If RE4 is possible on GCN then GT3/4 is possible on it too.
Yes, letterboxed, 30 fps and 16bit texture with lots of dithering I think it would be more than likely.
Congratulation for comparing two radically different game engines.
To anser the question: GT4 is of course possible on GC. Just the pixel fill rate may be a concern to 60fps at 1080i.
It's not even true
1080i, nor 720p for that matter.
(4mb of VRAM cannot display true HDTV resolutions.) It's displaying 640x1080i internally and then stretching it horizontally x3 (basically showing the same pixel 3 times in a row horizonatlly). That's far from true 1080i (1920 horizonal pixels). It's not even rendering as many pixels as 720P (1280 pixels x 720 pixels vertically).
In a single frame (60th of a second), GT4's "Hivision" potentially has to crank out 345,600 new pixels (640x540), while a true 1080i 60FPS game would have to crank out 1,036,800 new pixels (1920x540), and 720P 60FPS game would have to crank out 921,600 new pixels (1280x720).
345,600 vs. 1,036,800. That's only a
third of true 1080i. (just in case you missed the discussion) Though still quite a feat acheived by Polyphony. And btw no PS2 games have dithering, shimmering, IQ problems, etc.?