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Old 05 May 2008, 13:43   #21
Steve
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Originally Posted by alexh View Post
I just tried this demo with the latest WinUAE (1.5.0 beta 16) and I notice a strange line cutting the sprite on the right hand side of the screen.
I get the same effect using beta 16.
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Old 05 May 2008, 15:06   #22
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Record it and put it on youtube so we can see without download or running winuae.
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Old 05 May 2008, 17:58   #23
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great little demo, congrats photon ! (seems I'm three years late, lol )

I just tried it on my A3000, and it seems a winuae related problem. I observed another problem with the left head though, which I think maybe 040 related (it disappears under background when it rises above a certain limit, I couldn't reproduce it on winuae).
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Old 05 May 2008, 22:46   #24
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great little demo, congrats photon ! (seems I'm three years late, lol )

I just tried it on my A3000, and it seems a winuae related problem. I observed another problem with the left head though, which I think maybe 040 related (it disappears under background when it rises above a certain limit, I couldn't reproduce it on winuae).
Thx Yeah, in 2005 I made this in whatever version WinUAE was at back then. Just got the idea for a scroller, and my A500-040 was packed down and non-working, so I used the excellent emu.

The inspiration was '88-'89 demos so to get the right design I did the gfx myself, hehe. Except for the nice monsters by Uncle Tom. Cycle Exact in WinUAE ran just a little faster than an original slowmem A500, so when I fixed my A500 and ran it, it stuttered

I think there might be some star flicker on accelerated Amigas, and I know there is a bug with the sprite split on some configurations. Will make room for some Amiga coding at then end of the summer vacation, will most likely fix it then, but (ehm blush) I've been too lazy / doing other things, "prioritizing", "procrastinating", amnesia, take your pick
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Old 07 May 2008, 21:22   #25
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There's no pouet entry for this?
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Old 10 May 2008, 18:55   #26
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Unfortunately due to sprite emulation bug (sprite was visible even if it was outside of ddfstrt/ddfstop in non-AGA mode without brdsprt set. only diwstrt/diwstop was checked previously), this demo will look much worse (same as in real A500) in next WinUAE version
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Old 27 June 2008, 11:46   #27
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@Photon - would you be able to repost your new demo to The Zone? I missed it first time round but would love to check it out!
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Old 27 June 2008, 13:06   #28
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pmc: you can find the demo on pouet, check this link
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Old 27 June 2008, 13:55   #29
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OK. Cheers Stingray!
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Old 04 October 2008, 14:58   #30
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Hm, Stingray. That's Scoopex XmasDemo from 1992 that I fixed up in 2006, not Blitter Sweet.
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Old 04 October 2008, 15:09   #31
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Can you upload 'Blitter Sweet' to the zone again Photon?
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Old 05 October 2008, 14:49   #32
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@TheCyberDruid: check the post above from StingRay when I asked for a repost of the demo - he posted a link to it on Pouet - you can find it for download there.

Edit: Oooops, there's me telling you to check posts and I just noticed Photon's post saying StingRay's link was wrong. Yeah, yeah, I know, I'm a chopper...

Last edited by pmc; 05 October 2008 at 14:51. Reason: Being a spanner...
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Old 05 October 2008, 16:20   #33
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A nice idea for a scroller in the Scoopex XmasDemo :0)
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Old 09 October 2008, 12:12   #34
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Edit: Oooops, there's me telling you to check posts and I just noticed Photon's post saying StingRay's link was wrong.
It indeed was, my bad. However, I've uploaded to demo to my webspace now, you can find it here. And yes, this time it's the right one.
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Old 09 October 2008, 12:16   #35
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It indeed was, my bad. However, I've uploaded to demo to my webspace now, you can find it here. And yes, this time it's the right one.
Yay Thanks a bunch StingRay I will also include this one in the Demobase now
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Old 09 October 2008, 22:06   #36
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Someone wants my demo, yay! I'll try my very best to devote all free time this weekend to correct the artifacts stemming from not coding on a real Amiga back then. I will start to look at the reasons for the sprite bug, however I'm in a hotel so no way to fix it unless it's obvious. But sport-hunting for bugs instead of sport-killing bugs is more humane anyway! hehe
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Old 09 October 2008, 22:14   #37
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@Photon
I'm very interested in seeing new demos for the old hardware I like your demo and it would be great to see more form you
Do you mean the left demon head with the sprite bug? The upper half disappears with the A500 most common quickstart when it's in the upper position. Hope you find and can fix that bug
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Old 09 October 2008, 22:23   #38
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Problem is very simple:

00039bfe: 0092 0080 ; DDFSTRT := 0x0080
00039c02: 0094 0088 ; DDFSTOP := 0x0088

DDFSTRT larger than sprite x-coordinate = sprite is hidden. (except if using AGA-only BRDSPRT feature)

(DDFSTOP does not matter, sprites are visible from DDFSTRT to end of line. This is undocumented feature, logically it should be DDFSTRT to DDFSTOP but it isn't)
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Old 09 October 2008, 22:26   #39
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If you want to see new demos on old hardware, then check Multicolor / Unique or Hardknee lotus / RNO+Unique both newschool effect on ECS !
For a nice A500 tribute Major release / Da Jormas
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Old 09 October 2008, 22:38   #40
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Thanks for the links Frog I should check ADA more often I will add them to the Demobase aswell
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