1 Cog Propeller Poly Draw to Spectrum bitmap screen.

Baggers

Hi all,

I had a tad of spare time last night, so modified PropGFX3D poly draw to work on a Spectrum style bitmap screen ( 256x192 )
So here it is, let me know what you think. it's still WIP, as I need to get the rest of the 3D side accross to it, but for now, it just draws 8x4 pixel textured poly's.

Here's some binaries for you to see, as there's 3624 longs free, even with·a double buffered display, lots of scope for things [noparse]:)[/noparse]

http://www.propgfx.co.uk/Baggers/Games/Hybrid3D.binary
http://www.propgfx.co.uk/Baggers/Games/Proto3D.binary
http://www.propgfx.co.uk/Baggers/Games/Hydra3D.binary

Posted on Hybrid / PropGFX forum too
http://www.propgfx.co.uk/forum/Blah.pl?m-1195382557/


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Coley

Baggers,

As usual this is really sweet!

Any plans to make this useable in other graphical modes?

Regards,

Coley

Baggers

Yeah, was going to do it for the 4colour mode at first, but wanted some free ram afterwards.
But I don't see why I can't add a 4colour mode too [noparse]:)[/noparse]

Baggers.

Oldbitcollector (Jeff)

Great work! The Tube video was a little short.. [noparse]:)[/noparse]

Any release ETA on PropGFX? I'd like to play! [noparse]:)[/noparse]

OBC

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
Buttons . . . check. Dials . . . check. Switches . . . check. Little colored lights . . . check.

— Calvin, of 'Calvin and Hobbes.

Coley

Hi Jeff,

PropGFX is a few months away yet, I'm laying out the DIP40 variant as we speak, sorting out component supplies and the like....

I would say it's about 80% layed out so far, just keep having to re-jig the thing due to the space constraints....

At some point I will be doing a beta release, I will PM you when it is ready.

Regards,

Coley

Baggers

Yeah, the vid was a little short, I used my dig-camera, it's video's are large, but clear, so wanted a short clip, since it just &255then I decided to convert it to divx anyway lol.
was originally ~1.5MB for that vid.

By the way OBC, that's running on just the Hybrid ( or Protoboard, or Hydra ) without PropGFX, not PropGFX, incase you didn't know, which is another reason I did a small vid, as you can see it running for real on your setups.

Baggers.

rjo_

Baggers,

Add a second Prop... proper British LCD glasses... and you have Prop-3D-Stereo in the bag.

Perry has graciously supplied the sync: http://forums.parallax.com/forums/default.aspx?f=25&m=227676.

To see it for yourself, just use a frame offset of 1 on the second view... and cross your eyes[noparse]:)[/noparse]

By the way, a long time ago I was told that for same coloured dots... u only need about 500 points to get a full stereo effect. Probably depends upon the angular separtion of the points, but add motion and you need fewer.

We are going to need DRAM[noparse]:)[/noparse] figure 5X bitmap. It would be nice to be able to set one address... and write/read 5 different values.

If you model the observer's two views, then you can store everything in an offset map... very compact... and you can then back-compute to recover the geometry and change the view AND the data is useless without the view parameters, which can be encrypted[noparse]:)[/noparse]

Rich

Baggers

Hi All, I've been busy yet again, with work, but damn Coley·mentioned why don't I make it·handle a 4 colour·mode· so here it is

http://www.propgfx.co.uk/Baggers/Games/Hybrid3D4Colour.binary

http://www.propgfx.co.uk/Baggers/Games/Proto3D4Colour.binary

http://www.propgfx.co.uk/Baggers/Games/Hydra3D4Colour.binary

Enjoy, will convert 3D side to asm, with poly sort, then release it's source.

With this demo, so far I still have >3K longs free too [noparse]:)[/noparse]

hal2000

Impresionate
This is an exemplary job
My childhood with zx-spectrum.
What memories!

Baggers

Thanks hal2000 [noparse]:D[/noparse]
yeah the zx-spectrum is a great computer, and has spawned many happy memories [noparse];)[/noparse]

Baggers

Added video of it in action.

http://www.youtube.com/watch?v=bm8423KRK_Y