OPC One

[TotO]

Sure, english is not accurate for that... You mean: "Si vous faites". 
I just though that you have answered to my previous post, has I was speaking about the expansion port.

[Bryce]

Sure, english is not accurate for that... You mean: "Si vous faites". 

I think we know each other long enough to say "Tu"

Bryce.

[Prodatron]

Just for your information, here are two VDP9990 videos, which demonstrate its capabilities:


X-Tazy intro 1.2 on openMSX for MSXturboR/GFX9000

X-Tazy Level 1 (pre-version) on openMSX - game for MSXturboR/GFX9000

X-Tacy, a game project which hasn't been finished unfortunately. Oh, it's using the MoonSound soundcard as well

SymbOS supports the bitmap modes 2 (384x240x16), 3 (512x212x16), 4 (768x240x16) and 7 (1024x212x16) and virtual X resolutions of up to 1024px
SymbOS on a MSX TurboR + GFX9000 (2) - YouTube
I think for implementing fast arcade games the 256, 19268 and 32768 colour modes doesn't make much sense, but it would be cool for stuff like Lucas Art Adventures etc
Dr.Zed wasn't planning to integrate the VDP9990 into the SF3 but to create an own graphic hardware. The VDP9990 already has advanced blitter features compared to the MSX2 graphic, but it would make much sense to implement even a more usefull blitter

CU,
Prodatron

[Bryce]

Obviously the new card is going to require its own VRAM, but could the CPC fill this effectively to create anything faster than really good still pictures? The CPC won't be running any faster than normal and the 6845 will still be running in the background even if it's not being used.

Bryce.

[Trebmint]

Obviously the new card is going to require its own VRAM, but could the CPC fill this effectively to create anything faster than really good still pictures? The CPC won't be running any faster than normal and the 6845 will still be running in the background even if it's not being used.

Bryce.

If it has a blitter then all the z80 has to do is tell it copy graphics from one place to another, so in theory it could be insanely quick.

[Prodatron]

Obviously the new card is going to require its own VRAM, but could the CPC fill this effectively to create anything faster than really good still pictures?

Yes, plotting bitmaps on the screen is about the same speed. You send the rectangle definition to the blitter and then do a lot of INC B:OUTI commands until the full rectangle is filled with the bitmap. As you don't need to take care about line jumps you don't loose much speed here. Such a blitter can also handle things like transparency or XOR stuff.
But as Trebmint said, best way is to keep all graphics, fonts etc. already in the external VRAM and let the blitter do the whole stuff without the Z80.