[Coco] Will the *real* artifact colors please stand up?

[John Kowalski]

Kevin Diggs wrote:
>Hi,
>
>	Are the results of this artifacting business in any dependent on the
>quality of your TV (i.e. crappy tuner Vs one with 3d digital comb
>filter)?

Yes.

My old CoCo 1 produces very obvious green and purple when hooked up to my
old TV.  But when I hooked it up to a Sony WEGA (3d comb filter) the same
color chart program simply displayed a black and white pattern where the
green & purple bars should have been.


Ah, it seems a CoCo 3 *can* produce some purple and green in PMODE 4.  I
guess it all depends on the TV - the older the TV, the better :)


Results so far:

 Model            box 1     box 2     box 3     box 4
 -------------- --------- --------- --------- ---------
 CoCo 3            red       B&W       blue      B&W
 CoCo 3            red   pale-green    blue     purple
 CoCo 2            red    pale-blue    blue    pale-red   
 CoCo 1            red      green      blue     purple
 CoCo 1           purple     B&W      green      B&W

10 PMODE4,1:PCLS:SCREEN1,1:PMODE3,1:A=2:B=2.5
20 FORY=48TO143:FORX=(Y AND1)+65TO191STEP4
30 COLORA:PSET(X,Y):COLORB:PSET(X+2,Y):NEXT
40 A=A+1/48:B=B+1/48:IFA>3.5THENA=1
50 NEXT
60 GOTO60

                                         John Kowalski (Sock Master)
                                         http://www.axess.com/twilight/sock/