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Just out of curiosity let's pretend that Sega never even thought of the 32X and stuck with the SVP, releasing Virtua Fighter and Daytona USA with it and maybe perhaps still making consoles today?? :lol:
Anyway, would a Doom port have been possible using the SVP chip? Would it have had to use a custom engine similar to the Super FX 2 SNES Doom? Could it have been even better than the SNES port? I've read that the SVP was more powerful than the Super FX 1 & 2.
Yes. And it would probably run quite better than the SNES one, the real question is: are you able to stomach Doom at 16 colors?
These questions/what if threads suck IMO.
I'd rather not have any of them in this section of the forum which was created upon Chilly Willy's request for in-depth technical discussions, homebrew development, etc.
Yikes. Still, an informative post- not quite sure where else op’s question could fit in the forum.
Well, for 16 colors... https://www.youtube.com/watch?v=YFFWw3n6XlY You can have a glimse of it with Ega DooM... but... For me Zero Tolerance is a really great game, so Doom with SVP... hell yeah! :D
But that's without dithering and with a horrible palette, it could look alright I think.
Edit:
https://i.imgur.com/bkbIWFl.png
Based on the SNES port (104 to 16 colors). Pretty sexy right?
Can the Genesis really dither on the fly? I would have expected the dithering pixels in assets scaling up with everything else.
This would be the SVP though.
Worth noting that in these cases usually pixels are doubled horizontally for the sake of speed. The reason it matters in this particular case is that two pixels make up a byte, and so doing that can speed up rendering significantly by being able to overwrite the whole byte directly instead of having to read, modify and write back. And since there's nothing saying the two pixels have to be identical, that's essentially dithering for free (albeit vertical dithering, though there are ways to work checkerboard from there on).
Probably the best example of this would be the Wolf 3D demo, dithering is used heavily there (note: I'd suggest using dynamic mesh mode instead of fixed mesh x_x doors look atrocious in the latter).
https://i.imgur.com/uzwU5qy.png
https://i.imgur.com/xpgTReC.png
Yeah these what if threads are a bit crap really :/ maybe if we ever get a SVP FPGA (not likely) we'll know.
Jeez sorry, I really am curious and am a big Doom fan. I actually do like playing the Doom 32X port once in awhile since I consider it a novelty (I just hate the music obviously). It would be actually pretty astounding if someone were to pull it off homebrew wise. Nonetheless thanks for the informative post.Quote:
Originally Posted by Barone
This. I was thinking of the 32X forum at first but that wouldn't make much sense.Quote:
Originally Posted by ironnick23
Yes! That is actually surprisingly pretty decent looking.Quote:
Originally Posted by Alianger
Once again, sorry! That'd be great although very unlikely. I would imagine it would only be worth putting on a flash cart if even. Or maybe perhaps on a Reprogrammable flash chip cart for one game.Quote:
Originally Posted by matteus
Doomguys hand would have its own palette though, and the UI could use one independent of the rest of the scene with a mid scanline palette switch.Quote:
Originally Posted by Alianger
The background would also have its own BG layer and possibly the ground too.
There are three palettes free for use for anything that isn't the framebuffer and your first thought is to use a raster effect to load the HUD colors instead of using one of the free palettes? :v
Ground can't have a separate palette from walls though, unless you want the framerate to plummet (due to the much higher amount of data to transfer each frame). The ground isn't at a fixed height so you can't just draw it on a layer behind the raycasted graphics.
It doesn't look like this thread is sucking AT ALL.
Also now's a good time to remind us on why an SVP game is limited to 16 colors / 1 palette
Because all it does is render to some buffer in (its own) RAM and you still have to go through the console's VDP as usual. Basically all the same issues as with the Sega CD.
You'd be better off creating a virtua series style FPS...Quote:
Originally Posted by Sik
It still isn't blatantly obvious for us programming illiterates as to why then most Mega CD games go beyond those 16 colors limitation. Heck, some of the most most colorful games on the system are on CD. Also SVP Virtua Racing may only have 16 colors or less when drawing its polygons, but the background looks like it uses way more than that