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[NAVVARR]

I have one of these 'amiga Graffiti' dongle's- it sits at the back of my A1200 +Blizzard 040 + 128meg.

Anyway- i don't notice it making much of a difference. -Does it?!

What if anything -does it do - coz i bought it and never really got any use out of it and basically just forgot about it.

Is it good for anything in particular?

[tokyoracer]

Can you provide pictures? Im very curious.

[Krusher]

Check this out:

http://www.amiga-hardware.com/showhardware.cgi?HARDID=498

[Piru]

@NAVVARR

Anyway- i don't notice it making much of a difference. -Does it?!

It does absolutely nothing (except perhaps reduce the picture quality a little), unless if you run software that has explicit support for the unit.

[Akiko]

Wasn't there a few applications that could take advantage it, shapeshifter and maybe a few games?

Alas no workbench driver.

[zipper]

Wasn't there a few applications that could take advantage it, shapeshifter and maybe a few games?

At least NemacIV, Trapped/TrappedII.

[Crumb]

IIRC ADoom supports it too.

Latest C2P routines can be done at almost copy speed with 040/40 and 060/50 (the same speed it would take you to copy data from fast ram to chip ram without any processing).

I wonder if it's really noticeable on slow cpus...

[Tripitaka]

I have one of these too.
It adds chunky screen modes to workbench too and they are significantly quicker then the Amiga's planar ones.
NemacIV, TrappedI&II and shapeshifter have direct support.

This is the link you should be looking at.

http://www.jschoenfeld.com/products/graffiti_e.htm

:-D

Edit: ...and the manual: http://siliconsonic.de/t/Graffiti_english.pdf

:-D

[Piru]

@Tripitaka

It adds chunky screen modes to workbench too

How exactly does it do that?

[Tripitaka]

Now your asking! I havn't used this device for eons, but the software to do it came from Aminet, I'll see if I can track it down again. Truth is I use a Voodoo 3000 now. :-)

[Tripitaka]

...but whilst I do that. Other games that support the card:
Worms TDC
Gloom Deluxe

There are a few animation and picture viewers too as I remember. :roll:

Edit: As by brain dredges up knowledge from over 15 years ago, I'm wondering if it was one of the Workbench replacements (like Scalos or similar) that supported this card, I tried a lot of these out at one point...

...perhaps if I hadn't smoked quite so much weed I'd know....oh well.

[NAVVARR]

I remember trying Nemac IV with it and all I got was a corrupted screen -maybe the drivers weren't installed correctly.
I've a few of the other games like GLOOM Deluxe and Worms The Directors Cut ,-at some point i'll go and dig them out and post if I find anything astoundingly different in the display.

Thanks everyone for all your advice and help.

[weirdami]

so it's supposed to help make 3D games faster?

[beakster2]

Yeah. I remember reading alot about it when it came out. It was back when everyone was upset that the Amiga wasn't as good as PCs for Doom type games cos of its chunky to planer graphics.

It was also very helpful with Mac Emulators which supported it (Shapeshift/Fusion). I think it performs a very similar task to Akiko in the CD32.

[Piru]

Akiko is quite different thing, really.

You write it 8 longwords, each containing 4 chunky pixels. Then you read back longwords, this time you get bitplane data for 32 pixels, starting from plane 0. You may omit reading high-order bitplane data if you don't need it (say 64 colours, then you only need to read back 6 longwords). Akiko appears as single 32-bit I/O register that is written to and read from with CPU.

Graffiti on the other hand is a linebuffer postprocessor: It converts displayed picture on the fly, interpreting it in a different ways depending on the operational mode. It actually digitizes the amiga video output, analyzes and modifies it, and finally outputs analog signal again.

Graffiti suffered from lack of RTG support. If it would have had CGX or P96 driver, it would have been much more usable. Without it, it relied on explicit support from each software title.