Final Fight: Enhanced

[S0ulA55a551n]

Originally Posted by DanyPPC

Holy words

Even Team17 make AGA games with only 7 bitplanes.

Would like to see a video of it running on real hardware

[Reynolds]

Originally Posted by S0ulA55a551n

Would like to see a video of it running on real hardware

More likely on my hardware

[Samurai_Crow]

Originally Posted by Howardphilips

I was only responding to the comment that 8 bitplanes "would be too slow". I do not criticise your technical knowledge nor Metro Siege, which is looking awesome but is yet to be played afaik. 8 bitplanes for a technical demo with no AI and only one moving sprite seems possible, even if I believe this could be massively optimised (granted I don't have the tech skills to substantiate this). A demo is not a full game, like Metro Siege will be.

The reason 8 bitplanes "would be too slow" is that the blitter still uses only 16-bit memory acceesses. There isn't sufficient bandwidth for 16-bit accesses to be used unless throttled back to a lower bit-depth. Leaving sprite palette banks on AGA available by leaving at least one bitplane unused could improve the situation because sprite DMAs can be page fetched 64 bits at a time. Also, sprites compute transparency without a mask, allowing the blitter to do unmasked blits directly to sprite hardware, cutting its bandwidth requirements in half.

[Retro1234]

He apparently not really using the blitter that's why there is such a high memory requirement. He coppies large chuck of memory to restore and display the graphics

[roondar]

Yeah, does seem like he's building the image in Fast Memory and then copying over the between-frame changes to Chip Memory. Interesting idea for sure, though running it through WinUAE might (or might not) give over-optimistic results as it's emulation of the 68020 is faster than on the real machine.

[Samurai_Crow]

An EC020 can't address enough FastRAM to run the demo. I hope he finds some way to optimise it. If he's copying from FastRAM though, he should have 32-bit bus width.

[Howardphilips]

Originally Posted by Samurai_Crow

An EC020 can't address enough FastRAM to run the demo. I hope he finds some way to optimise it. If he's copying from FastRAM though, he should have 32-bit bus width.

Thank you for the great explanations!
Don't know what it's worth but the video comments that there are 128 unused color registers.
And I am not sure which specs he targets. His first demo was with an actual A4000 but now this is an emulated 68020 system he shows. Well...

[dlfrsilver]

Originally Posted by Retro1234

He apparently not really using the blitter that's why there is such a high memory requirement. He coppies large chuck of memory to restore and display the graphics

That's the nearest way to do the coin op as it seems. Big ram expectations, but you get the real deal.

[Howardphilips]

Speaking of Ram:

"I've gone back to my original ECS 1.5-2MB spec.

The 1MB version worked/had all the moves, but was just slow when more than 2 objects had to face left and I got tired of fighting it when better tech existed at the time. All the extra mem does is store flipped sprites."

[Howardphilips]

No update for the last few weeks as it turns out Brick_Nash had COVID. Wishing him well soon!

[Howardphilips]

Not much to quote this week:
"The humble Hitspark! Or Impact Explosion, Punchstar, whatever. It's a bit of extra drawing, but it's square enough to be done in a single Blit.

Some love it, some don't. Personally, I think it adds a lot to the combat.

1 per skelped enemy is a bit frivolous ATM though."
Source (with picture): https://mobile.twitter.com/Brick_Nas...C-tdfX0JctAAAA

[Howardphilips]

Project is still moving:
"Lot of dirty code is creeping in just to get things working. Not sure if this is common practice for programmers, but I like the little victory buzz of a quick fix with a view to optimise later."

[Cris1997XX]

Originally Posted by Howardphilips

Project is still moving:
"Lot of dirty code is creeping in just to get things working. Not sure if this is common practice for programmers, but I like the little victory buzz of a quick fix with a view to optimise later."

...Is this some sort of riddle? Because it sure looks like it

[Superman]

How come Brick Nash doesn’t update this thread himself as he still visits the forum?

[Howardphilips]

Originally Posted by Superman

How come Brick Nash doesn’t update this thread himself as he still visits the forum?

I dunno. I can also stop pasting his Twitter feed about this as it would be better to get this from the horse's mouth directly.

[d4rk3lf]

Please keep posting.

[Cris1997XX]

Originally Posted by d4rk3lf

Please keep posting.

If he doesn't want to talk here, you might as well keep posting his updates

[Brick Nash]

I didn't realise this thread was being updated. I generally just chuck out small tid-bits on Twitter and don't think they're worth clogging up a forum with.

Ironically though, I do actually have something significant to show today, so here's demo 2.

It's running on ECS 2MB 68000 (Cycle exact). More info in the description.

Cheers!

[ Show youtube player ]

[oscar_ates]

Looks amazing Nash

[Cris1997XX]

Originally Posted by Brick Nash

I didn't realise this thread was being updated. I generally just chuck out small tid-bits on Twitter and don't think they're worth clogging up a forum with.

Ironically though, I do actually have something significant to show today, so here's demo 2.

It's running on ECS 2MB 68000 (Cycle exact). More info in the description.

Cheers!

[ Show youtube player ]

This is bloody awesome! I can't believe you managed to pull it off