[Coco] CoCo Graphics Capabilities

[Luis Oliveira]

Hello Steve

One tip is to not try to do the calculations in real time! You could try to 
calculate a list of x and y coordinates first and include them as data in your 
program. The program, when executing, would just draw on pre-calculated 
coordinates.

[]s,
Luis



Em terça-feira, 16 de fevereiro de 2021, às 16:24:49 -03, Joel Dare escreveu:
> You can also use multiple graphic pages, depending on the graphics
> resolution, which you can switch between very quickly. So, you could draw
> it, slowly, on those pages and then flip between the pages to create the
> fast animation.
> 
> I've also seen an effect where the graphic display is somehow rotated by
> poking around in memory, but I've only seen it on a coco emulator and not
> actually done it myself.
> 
> On Tue, Feb 16, 2021, 10:46 AM Steve Ostrom <smostrom7 at comcast.net> wrote:
> > I have done some animated ML CoCo graphics in past years (a version of
> > Quix I sold to T&D ages ago), so I realize how difficult it is to create
> > cool graphic effects.  Smart phones today are so much more advanced than
> > the Coco for graphics, and make complicated animated graphics look easy.
> > If I wanted to create a spinning wheel (think Wheel of Fortune, as an
> > example) with letters or numbers or pictures on this wheel, the only way I
> > know of to create this motion would be to use polar coordinates.  The
> > computation would be immense, and could not be done live.  Are there other
> > ways to create relatively smooth animation?  Some rotating ball animations
> > rely more on palette shifting, but this won’t work if there are pictures
> > on
> > the wheel that need to be maintained.  Your thoughts?
> > 
> > --- Steve ---
> > 
> > 
> > Sent from Mail for Windows 10
> > 
> > 
> > 
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