Just curious; Graphics Card

[pandy71]

Originally Posted by Sim085

You can select between 16,777,216 different colours but can only display 262,144 different colors at the same time.

Am I understanding this correctly?

You can display more than 262,144 colors at the same time - http://www.amigans.net/modules/AMS/a...php?storyid=22

[Sim085]

Originally Posted by Matt_H

Scandoublers/FlickerFixers simply modify the output frequencies of the native chipset so that they can be displayed on VGA monitors.

So how is the indivision different from for example this?
http://www.ebay.com/itm/AMIGA-RGB-VI...0AAOSwMNxXWxJt

Doesn't this also allow to connect the Amiga to a VGA monitor?

[eXeler0]

Originally Posted by Sim085

So how is the indivision different from for example this?
http://www.ebay.com/itm/AMIGA-RGB-VI...0AAOSwMNxXWxJt

Doesn't this also allow to connect the Amiga to a VGA monitor?

The VGA adapter allows you to connect to a VGA monitor, yes, but its just a throughput of the signal, so you would only have access to a few different modes in WorkBench, namely those who can run at 31kHz. To run games you would need a Multisync monitor that can run screen modes at 15kHz (Horizontal sweep frequency of the monitor). If you have such a monitor (and I do, the BenQ BL702A) then yea you don't really need the indivision.
Where the indivision gets useful is that it gives you the option to connect the Amiga to a bunch of different screens or TVs and the indivision handles the "scan dubling / flicker fixing" so you are not tied up to a certain multisync monitor.

[eXeler0]

Originally Posted by demolition

Well, hardware-wise, the Indivision has a frame buffer and Grafitti support which is a kind of graphics card, but I don't think any software was ever implemented to enable this feature on the Indivision AGA, so those specs are a bit of a stretch. With the Indivision ECS, there was a tool included which could display still pictures (jpg etc) in 24 bit colors using this special feature. It could not be used for WB though.

You could argue that AGA in itself can also do 16.7 mill. colors. That is how they marketed the A1200 back in 92.

At least Indivision ECS could help run Nemac IV ;-)
[ Show youtube player ]

[demolition]

Originally Posted by Sim085

So how is the indivision different from for example this?
http://www.ebay.com/itm/AMIGA-RGB-VI...0AAOSwMNxXWxJt

Doesn't this also allow to connect the Amiga to a VGA monitor?

That is simply a passive adapter where a flicker fixer actively converts the signal from PAL frequencies into VGA frequencies.

[Sim085]

Finally, you can connect your favourite computer to a modern flat screen and use super-hires resolutions on your workbench in full colour!

https://icomp.de/shop-icomp/en/shop/...andoubler.html

What does in full colour mean?

[Daedalus]

Originally Posted by Sim085

What does in full colour mean?

Possibly a reference to supporting the full 24-bit palette. Some scandoublers and flicker fixers were only 12 or 15-bit, and so smooth AGA gradients would appear banded and finder detail could be lost. Most external scandoublers back in the day were like that.

[Signman]

Originally Posted by Daedalus

Possibly a reference to supporting the full 24-bit palette. Some scandoublers and flicker fixers were only 12 or 15-bit, and so smooth AGA gradients would appear banded and finder detail could be lost. Most external scandoublers back in the day were like that.

But not like rtg cards. These adapters use the chip ram and display only in amiga’s screenmodes as far as colors, like aga.

[demolition]

Originally Posted by Sim085

https://icomp.de/shop-icomp/en/shop/...andoubler.html

What does in full colour mean?

It could be a reference to the fact that it has a 16MB frame buffer which in theory could be used to display a 24 bit color screen mode. However, no driver was made to enable this, so it is purely theoretical. For the Indivision ECS, a tool was supplied which could display pictures in a 24 bit color mode.

[jPV]

Originally Posted by demolition

That is simply a passive adapter where a flicker fixer actively converts the signal from PAL frequencies into VGA frequencies.

It's not a flicker fixer and it doesn't convert any frequencies. It's just a dummy adapter to physically connects RGB connection to VGA connection, but it doesn't do any conversions. It's purely about what Amiga is set to output and what your monitor can display. For common VGA monitors you have to use DoublePAL, Super72, or such 31kHz (AGA) screenmodes on Amiga to get them displayed. If you want the standard video modes to be displayed, then you need a real multisync monitor.

Scandoubler = doubles the horizontal scan rate
Flicker fixer = removes the flickering from interlaced modes (de-interlace)

Usually flicker fixer is just an extra option to scandoublers in Amiga. Some scandoublers has it and some don't.

Originally Posted by demolition

It could be a reference to the fact that it has a 16MB frame buffer which in theory could be used to display a 24 bit color screen mode. However, no driver was made to enable this, so it is purely theoretical. For the Indivision ECS, a tool was supplied which could display pictures in a 24 bit color mode.

I think it's more like what Daedalus told. It refers the color reproduction quality... at least it's usually used term with scandoublers in that meaning.

[Sim085]

With regards to BlizardVision PPC what does the following mean:

no support for draggable screens

http://amiga.resource.cx/exp/blizzardvision

Also am I correct, for the A1200 within its original case, the only three options out there are the BlizzardVision (for which you require a PPC Blizzard), the Indivision AGA MK2cr or some external pass through connector.

I couldn't find any other option without towering. Is this right?

[ajk]

It means that you can't drag screens; that is, you can't have half of Workbench and half of some other screen showing at the same time.

The only graphics card that fits inside the A1200 is the BlizzardVisionPPC.

There are other internal scandoublers apart from the Indivision that also fit (e.g. the Scandy).