Simon Jonassen created a cool plasma effect on the Dragon/CoCo:
http://www.youtube.com/watch?v=sX_H-0QvN3E
I spent a bit of time over the weekend optimising it (mostly making speed vs accuracy tradeoffs) and here's the results:
http://www.6809.org.uk/dragon/plasma/
Sorry no video yet - maybe Simon will generate one
Would be interested to know how it looks on a CRT - emulation & LCD televisions don't bleed the Semigraphics 24 colours as well as an old CRT used to...
Plasma Effect
Re: Plasma Effect
Looks nice on a 14" Sony CRT!
I've uploaded a video here: https://www.youtube.com/watch?v=aGGtX6MDqaE
Not a superb quality, but you can make yourself an idea of how it looks
I've uploaded a video here: https://www.youtube.com/watch?v=aGGtX6MDqaE
Not a superb quality, but you can make yourself an idea of how it looks
Re: Plasma Effect
Very cool!!
Re: Plasma Effect
it's just an old c64 routine that i ported to the coco II.....
lots more "funkies" to come......
here is a quick vid:
https://www.youtube.com/watch?v=KzTuDq7Qrkw
/Simon Jonassen
lots more "funkies" to come......
here is a quick vid:
https://www.youtube.com/watch?v=KzTuDq7Qrkw
/Simon Jonassen
Re: Plasma Effect
I've attacked it a bit more, and it's now updating the screen in less then three frames, both PAL and NTSC. Think that's about as far as I can go without major quality loss! Files updated...
And in case anyone wants the history:
And in case anyone wants the history:
Code: Select all
git clone http://www.6809.org.uk/repos/plasma
Re: Plasma Effect
Made a couple of videos from the new files, this time with a USB capture device.
Download Plasma.mpg
Download PlasmaMirror.mpg
Enjoy!
Download Plasma.mpg
Download PlasmaMirror.mpg
Enjoy!
Re: Plasma Effect
Good captures - thanks!
I have spread the word
I have spread the word
Re: Plasma Effect
BRILLIANT !!
Glad to see you took to the plasma routine and recooked some stuff for more speed....
/Simon
Glad to see you took to the plasma routine and recooked some stuff for more speed....
/Simon
- snarkhunter
- Posts: 241
- Joined: Fri Apr 03, 2009 7:16 pm
- Location: France
Re: Plasma Effect
... Nice!
I did not think the Dragon could ever become an Amiga wannabe!
Next step for you to tackle, smart guys: 'Copper lists'!
I did not think the Dragon could ever become an Amiga wannabe!
Next step for you to tackle, smart guys: 'Copper lists'!
Re: Plasma Effect
Awesomissimo, guys! Looking forward to showing off this as a screensaver at the next vintage computer festival Can a key press check be introduced without slowing it down too much?