15 March 2021, 15:13 | #21 |
Bruno
Join Date: Aug 2020
Location: Nantes / France
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15 March 2021, 15:32 | #22 | |
Registered User
Join Date: Jun 2020
Location: Brno
Posts: 90
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Quote:
And also impossible All techniques used in this fantastic demo come from decades of evolution on Amiga (or Atari ST) demoscene. Blitter c2p, fast texturing (some self modifying code technique maybe?), compression, a lot of precalculated data, ... All I want to say is that revolutions certainly happen from time to time but mostly things happen in evolutionary steps. |
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15 March 2021, 15:53 | #23 |
Registered User
Join Date: Feb 2018
Location: Poland
Posts: 352
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Agree with that. The other creatures also evolve. If Amiga would be able to make such a leap so do the others.
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15 March 2021, 16:16 | #24 | |
Registered User
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Location: Ur, Atlantis
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Quote:
http://eab.abime.net/showthread.php?t=104864 |
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15 March 2021, 18:25 | #25 | |
Registered User
Join Date: Apr 2018
Location: UK
Posts: 487
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Quote:
I'd have thought that this demo is using precalculated 3D, so it's not really a 3D engine. It's just drawing the precalculated scenes. |
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15 March 2021, 21:40 | #26 | |
www.resistance.no
Join Date: Jun 2008
Location: Norway
Age: 43
Posts: 201
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Quote:
Sad to say, but the demo will not work on an A1000. We did not get to test on my A1000 until late in the development of the production and it is not likely to get fixed at this point. |
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15 March 2021, 22:10 | #27 | |
Needs a life
Join Date: Jan 2008
Location: England
Posts: 1,707
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Quote:
It is a stunning demo, it really is. |
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16 March 2021, 09:03 | #28 | |
Registered User
Join Date: Mar 2021
Location: Berlin
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Dear Photon,
Quote:
The compression algorithm is LZO, and http://aminet.net/util/pack/cranker.lha contains all the source code. On my server there are also binaries for Linux, Windows, MacOSX. Cranker is an executable packer, but also contains a data decruncher. I am not coding against emulators, and especially not under Windows. I do not even use or have Windows. I used fs-uae a bit during the trackmo setup phase. I've grouped the demo into "parts". Far more than 95% of the time I was coding these parts against an A600 with 2mb RAM and a PCMCIA network adapter. I just wanted to point out that emulators are not needed to do demos. People seem to be freaking out over frameworks and IDEs and integration of emulators and tooling and whatnot. I use a script preprocessor, a cross assembler, and a network launcher on the Amiga. |
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16 March 2021, 09:05 | #29 | |
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Join Date: Mar 2021
Location: Berlin
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Quote:
We have no idea, and I'm really sorry about it. We wanted to make it compatible with as many Amigas as possible and spent a lot of work for this. But we simply didn't have an A1000 with 1mb of memory when we needed it. |
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16 March 2021, 11:01 | #30 |
Needs a life
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Location: England
Posts: 1,707
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Thanks for the reply! Yes, I could see the care that's gone into this, especially with the reporting out of dropped frames, syncs etc. It's immense
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16 March 2021, 14:46 | #31 | |
Defendit numerus
Join Date: Mar 2017
Location: Crossing the Rubicon
Age: 53
Posts: 4,474
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Quote:
I suppose chiark's A1000 is a PAL version with Agnus 8367. The VBI arrives on line 1 and not on 0. So if you have some code with very tight synchronization it may be that you do not receive a response (or delayed) in some waiting check (or you expect that the code ends up in a certain raster line and instead it doesn't happen because you are in the successive..). I don't think there can be other cases of incompatibility (apart from the EHB, I don't know for the 7-bpls trick), but in any case they would not lock the code, only 'wrong' video effects. |
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16 March 2021, 14:59 | #32 |
Needs a life
Join Date: Jan 2008
Location: England
Posts: 1,707
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You're right, it is a PAL machine Ross, and it is an 8367 in there. That's some incredible esoteric knowledge there!
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17 March 2021, 22:12 | #33 |
Moderator
Join Date: Nov 2004
Location: Eksjö / Sweden
Posts: 5,604
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18 March 2021, 02:30 | #34 |
Moderator
Join Date: Sep 2004
Location: France
Age: 50
Posts: 4,277
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for information, i am just finished whdload's patch for Hologon (released soon)
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18 March 2021, 02:58 | #35 | |
Registered User
Join Date: Feb 2009
Location: Amiga
Posts: 465
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Quote:
The CRT_Phosphors masks look pretty good. Same for the aperture masks. Even DamienD's scanline settings looks really good on LCD! It seems we need some to port the HLSL shader functions of scanline_variation scanline_jitter hum_bar_alpha power floor signal phosphor_life The only monitors I've seen that looks ALMOST CRT like is on OLED. I will ask the RESHADE team about MAME HLSL in discord and see if they can give us any advice. edit - I found this has the phosphor decay shader and others from MAME : https://github.com/Matsilagi/RSRetroArch Last edited by Valken; 18 March 2021 at 03:07. |
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