| |
Eyeth
Account closed
Registered: Apr 2002
Posts: 98 |
The Art of Wiring
Hello, CSDb denizens;
I'm thinking of doing two small demos; One for the SuperCPU and one for a plain c64. I already have some ideas I'd like to try out in these demos.
I will be cross-assembling it and testing it out under winVICE and of course, on the real machine for the SuperCPU one.
Anyway, I'd appreciate any tips in wiring graphics and pictures for my nascent c64 demo efforts. I already wired a Santa piccy for my SuperCPU full-screen FLI demo and managed to muddy the conversion.
That said, I do have high standards and I want to adhere to them. So, I need to do a better job in wiring graphics/pictures to show for it.
First of all, I wonder if it's possible to use a painting program like Photoshop or Paint Shop Pro for the initial production of the picture? I heard there was a c64 palette of 16 or 256 colors for those PC programs? How do I use this palette under those programs?
Should I then save the resulting file to a .BMP, .GIF or .JPEG? What conversion program should I use? Any intermediate steps? I've already used ConGo with my Santa conversion and it didn't go over too well, so I'd like to explore/use other utilities other than ConGo.
I'm thinking of using the drazlace (interlaced Multi-Color Mode) mode for my c64 demo effort and an IFLI mode for my SuperCPU demo effort. Hopefully conversion efforts will yield good results for these two modes I'm contemplating.
Thanks,
-Todd Elliott |
|
... 53 posts hidden. Click here to view all posts....
|
| |
algorithm
Registered: May 2002
Posts: 705 |
Quote: Quote:But after many tests, (using photoshop, etc) and 16 c64 colors as the index, floyd steinberg wins over ordered dithering in 320x200 mode (especially in interlaced AFLI which utilised 136 colors)
thats only the case though if you completely ignore the horrible flicker... if you limit yourself to use only colors with same luma for interlace (so they almost dont flicker at all) you have a lot less colors, and ordered dither wins again.
I will post some examples and a 'test' version of the program sometime in the weekend. with comparisons etc. using the similar luma method is great for near non flickering pixels, but as you had mentioned yourself it results in a far lesser selection of colors. I will add another option in the program (it will consist of several color reduction methods) to use only specific mix colors to reduce the flickering, I have tried this, but the quality is nowhere near as good. Furthermore, the flickering in the 136 mix color mode is minimized anyway due to the alternating dither and low brightness/contrast |
| |
algorithm
Registered: May 2002
Posts: 705 |
Some examples of the converted pics.
On a real c64 or emulator, they will obviously flicker, but this will be reduced somewhat
|
| |
Oswald
Registered: Apr 2002
Posts: 5086 |
the fake 136 color pics are nice, but they are lying... waiting for the flickering version.. :) |
| |
algorithm
Registered: May 2002
Posts: 705 |
Fake?? why not zoom into the picture and see indeed that there are 2 cols (each of which comprise of 2 c64 cols=mixcol) in each 8x1 cell. and I never claimed that they will not flicker, flicker they will, but not bad as expected. Furthermore there is room for another two mix cols in each 8x1 cell |
| |
algorithm
Registered: May 2002
Posts: 705 |
oooppsss. just realised, these picture grabs have been saved as gif which dithers the converted image resulting in more cols.. A link to the application image (PNG Truecolor) is as follows. Any comments or criticisms welcome.
http://www.naveedkhugiani.com/test4.png
|
| |
Oswald
Registered: Apr 2002
Posts: 5086 |
I said they lie because there's no flicker. Its not a suprise a picture with 136 colors looks nice. But its nowhere near how it would look on the real shit. |
| |
algorithm
Registered: May 2002
Posts: 705 |
I suppose the same can be said for any interlaced mode such as IFLI, IUFLI etc, One good idea was the similar intensity color mixing which would dither colors only to the mix colors which produced the least flicker (eg not white and black=Flicker hell, green and pink=less flicker etc) It will flicker no more than IFLI does in the worst case scenario. |
| |
Oswald
Registered: Apr 2002
Posts: 5086 |
sure the same can be said for any other laced modes. |
| |
chatGPZ
Registered: Dec 2001
Posts: 11360 |
posting 136 cols pics is pretty pointless, everyone can do conversions that look good that way. post executables that we can check on the real thing instead :) |
| |
T.M.R
Account closed
Registered: Dec 2001
Posts: 749 |
And stick a tune and scroller on at least, make a bit of a show of it. =-) |
| Previous - 1 | 2 | 3 | 4 | 5 | 6 | 7 - Next |
