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Forums > C64 Coding > Holy Grails
2018-03-18 10:10
Krill

Registered: Apr 2002
Posts: 2993
Holy Grails

I've been wondering about them, with some having been finally discovered, others not yet, and some probably going to remain in the realm of the impossible forever.

I'm speaking of things like:
- 320x200x16 graphics without restrictions
- Crash-free all-direction hardware scrolling
- Digi replay of 8-bit samples at one register write per sample and without requiring cycle accuracy

on standard vanilla hardware, of course.

Some examples of discovered grails are:
- Cube rotating at 50 fps about 3 axes
- The 9th sprite (with some restrictions)
- On-the-fly standard GCR block read+decode+checksumming

As for definition, they all satisfy some measure of being perfect or optimal or being possible after all, with no further improvements required, possible or necessary. But i'm not so sure if that definition holds water with regard to some of the examples i listed. :D

The question is, what other Holy Grails are there, already discovered or still elusive?
What are your pet grails you've been chasing after for decades or have found eventually? :)
 
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2018-07-02 22:24
Compyx

Registered: Jan 2005
Posts: 631
Well, you're too late for that, somebody already did that in a recent demo, and it looked awesome :)
2018-07-02 23:01
Oswald

Registered: Apr 2002
Posts: 5100
50 fps 160x200 plasma ? and not made of huge lego sized squares ? and more than 4 colors ?:P
2018-07-02 23:51
Raistlin

Registered: Mar 2007
Posts: 694
The 160x200 plasma is definitely very nice - great job there :-)
2025-01-12 00:25
Digger

Registered: Mar 2005
Posts: 442
Quote: I think Crossbow used something like that to have more than 320 pixels worth of char/bitmap graphics per rasterline.

Yeah, it was the 25 lines of multicolour bitmap plus extra hires scroll, not using sprites.

Does anyone remember which demo is was? Either Crest or Booze Designs...?
2025-01-12 01:12
chatGPZ

Registered: Dec 2001
Posts: 11429
Wasnt that boooze design and royal arte? :)
2025-01-13 00:25
Copyfault

Registered: Dec 2001
Posts: 479
Quoting chatGPZ
Wasnt that boooze design and royal arte? :)
Yes, that IFLI-part with 26 char lines! Though I'm not sure wether the 26th charline full of bitmap gfx was a world first in this demo or if it was done before, then most probably not as part of an IFLI piccy.

Now making all the rasterlines of the 26th charline fetch new VRam colours would *really* be a holy grail ;)
2025-01-13 00:30
chatGPZ

Registered: Dec 2001
Posts: 11429
I am sure i have seen this as a PoC in 64er in the 80s :) It is mentioned in the VIC article as well IIRC
2025-01-13 01:28
Krill

Registered: Apr 2002
Posts: 2993
Quoting Krill
I think Crossbow used something like that to have more than 320 pixels worth of char/bitmap graphics per rasterline.
Pretty sure former self meant X not Y, though. =)
2025-01-13 13:29
Jammer

Registered: Nov 2002
Posts: 1342
https://www.youtube.com/watch?v=F3UQ9P9S9oU

For those who aren't familiar yet - raycaster running at bearable speed but not that much bearable resolution. Smaller monitor recommended but other than that, game is fully playable and definitely beyond usual proof of contept stage ;)
2025-01-13 19:13
algorithm

Registered: May 2002
Posts: 707
Quote: Quoting Krill
I think Crossbow used something like that to have more than 320 pixels worth of char/bitmap graphics per rasterline.
Pretty sure former self meant X not Y, though. =)


Could it be this one? (Tense years by sounddemon) - Tense Years
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