Plasmas

Jherek Carnelia · 09 October 2002, 21:41

Does anyone know of a good explanation of what plasma routines are?
I have just assembled and got to run (something of a rarity!) the plasma source code from the Source4 (thanks Laundromat!).
It looks great but I would like to read the theory behind it before I attempt to understand how it's done.

Frazor · 11 October 2002, 13:19

You can found samples on Programmers Heaven web site, some are with explanation (tutorial).

Jherek Carnelia · 12 October 2002, 08:05

Codetapper · 12 October 2002, 13:54

I just looked at some of the examples on that website and PC plasma is exactly how I imagined it would be - incredibly wasteful and CPU/graphics card intensive.

On the Amiga you can plot the sine waves to an oversized screen then move the screen around while colour cycling the picture. This takes (practically) no CPU time at all. I have a few demos in Amos which show the process and they run at full speed on a basic A500.

On the PC you have to plot each pixel for each frame with the altered colour - how typically inefficient and lame!

12 October 2002, 17:00

It doesn't have to be done like that. It's perfectly possible to use an oversized screen + colour cycling on PC, it's just that most PC coders are crap and lazy.

Frazor · 13 October 2002, 02:08

I remember a nice effect (not very plasma but similar), simply draw concentric circle en each bitplane and move each bitplane separately (just move the bitplane address).

Nyarlathotep · 13 October 2002, 17:49

Quote:

Originally posted by Frazor
simply draw concentric circle en each bitplane and move each bitplane separately

Interference?

Frazor · 13 October 2002, 21:27

Quote:

Interference?

Yes exactly like this but I don't know the name before, thank you

.

09 October 2002, 21:41	#1
Jherek Carnelia Dazed and Confused Join Date: Dec 2001 Location: portsmouth/uk Posts: 242	Plasmas Does anyone know of a good explanation of what plasma routines are? I have just assembled and got to run (something of a rarity!) the plasma source code from the Source4 (thanks Laundromat!). It looks great but I would like to read the theory behind it before I attempt to understand how it's done.

12 October 2002, 08:05	#3
Jherek Carnelia Dazed and Confused Join Date: Dec 2001 Location: portsmouth/uk Posts: 242	Thanks Frazor

12 October 2002, 13:54	#4
Codetapper 2 contact me: email only! Join Date: May 2001 Location: Auckland / New Zealand Posts: 3,187	PC Plasma sucks! I just looked at some of the examples on that website and PC plasma is exactly how I imagined it would be - incredibly wasteful and CPU/graphics card intensive. On the Amiga you can plot the sine waves to an oversized screen then move the screen around while colour cycling the picture. This takes (practically) no CPU time at all. I have a few demos in Amos which show the process and they run at full speed on a basic A500. On the PC you have to plot each pixel for each frame with the altered colour - how typically inefficient and lame!

11 October 2002, 13:19	#2
Frazor Registered User Join Date: Sep 2002 Location: near Denise & Paula Posts: 52	You can found samples on Programmers Heaven web site, some are with explanation (tutorial).

12 October 2002, 17:00	#5
Tommo Posts: n/a	It doesn't have to be done like that. It's perfectly possible to use an oversized screen + colour cycling on PC, it's just that most PC coders are crap and lazy.

13 October 2002, 02:08	#6
Frazor Registered User Join Date: Sep 2002 Location: near Denise & Paula Posts: 52	I remember a nice effect (not very plasma but similar), simply draw concentric circle en each bitplane and move each bitplane separately (just move the bitplane address).

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)