This fake demo is not possible on ECS... But AGA?

[arpz]

[ Show youtube player ]

What do you guys think?

[StingRay]

Perfectly possible on OCS.

[Schlachtwerk]

I think this is not possible on AGA.

[StingRay]

This is perfectly possible even on OCS, the effects are very simple, starfield, rasters, scroller and sine scroller. And it looks quite ugly too!

[arpz]

It looks like too many colours, though?

[Samurai_Crow]

Originally Posted by Schlachtwerk

I think this is not possible on AGA.

Why not? The smooth parts of the color gradients in the color bars were opaque so you could disable the display DMA while they were being displayed to get fast copper. The backdrop would probably be blitter-based. The moving text in the middle would be sprites and therefore would be unaffected by the display DMA being disabled for the color bars.

I say it's perfectly doable on AGA. It's even possible on OCS if you didn't have the smooth color gradients used on the color bars.

[s2325]

I think it's OldSkool Demo Maker for PC.

[StingRay]

Of course it is, the effects say it all.

[Thorham]

Originally Posted by arpz

It looks like too many colours, though?

That's probably the crappy encoding quality causing the gradients to become smooth.

You could try cracked Shadow of the Beasts 2 adfs in WinUae and see if any of them have this intro.

[pmc]

I second StingRay - definitely do-able on OCS.

Personally though, I'd get rid of, or at least modify, the 3d star effect. The stars that become large circles firing quickly past the front of the screen make things look messy in my opinion.

[StingRay]

Originally Posted by Thorham

You could try cracked Shadow of the Beasts 2 adfs in WinUae and see if any of them have this intro.

That's a PC "demo" made with Oldschool Demomaker.

Originally Posted by pmc

The stars that become large circles firing quickly past the front of the screen make things look messy in my opinion.

The whole thing looks messy IMHO.

[pmc]

Originally Posted by StingRay

The whole thing looks messy IMHO.

You meanie

[arpz]

Originally Posted by Thorham

That's probably the crappy encoding quality causing the gradients to become smooth.

You could try cracked Shadow of the Beasts 2 adfs in WinUae and see if any of them have this intro.

nah, the guy actually stated that its fake elsewhere.

as for the everyone else, yes, I don't really like the stars, I'm not massively impressed or anything but the smoothness of the bars had me wondering if it could be achievable.

[khph_re]

The copper bars are multi coloured, but the copper can change (I think) up to 16 palette entries per line. Everything else on there looks pretty standard for OCS.

[Mrs Beanbag]

Originally Posted by khph_re

The copper bars are multi coloured, but the copper can change (I think) up to 16 palette entries per line. Everything else on there looks pretty standard for OCS.

Nobody has yet suggested that HAM might be being used here... if you put a single pixel of say colour 1 on the left and put component-change codes along the rest of the line to make a gradient, you'd only have to change one palette entry and the whole line would change.

[Thorham]

Originally Posted by khph_re

but the copper can change (I think) up to 16 palette entries per line.

OCS/ECS can change a color (or other chipset register) per eight lowres pixels, as long as the screen is 16 color lowres (don't know how many colors for highres, but less than 16). This means you can get reasonably close to the copper bar effect in this intro.

[Djay]

maybe this is good idea for a little project, make an "Amiga" version of this cracktro

could be a joint effort or a compo for the leet coders?

[Leffmann]

Gradients would have to be much more coarse, and you'd never get the same frame rate if you were to do all the drawing going on in the video, with the stars in the background zooming up to large filled circles.

[Mrs Beanbag]

Not necessarily true Leffmann it's only one bitplane, it's only half-height and you could draw all the outlines first and fill the whole thing on one go. Although where two circles overlapped they'd cancel out, not sure if there's an easy way round that.

The gradients could easily be dithered with a clever use of bitplanes.

[Lonewolf10]

I think it's pretty cool. Plus you could cheat (and be lame) and pre-render the star bit (say 20 frames of half-screens), thus leaving everything else to be done in realtime


Regards,
Lonewolf10