Would would have thought one good thing (this paper) could happen because of patents..

On Wed, Dec 4, 2013 at 7:19 AM, David T. Lewis lewis@mail.msen.com wrote:

On Tue, Dec 03, 2013 at 11:23:29PM -0300, J. Vuletich (mail lists) wrote:

...

Hi Folks,

Big news! The first defensive disclosure about Morphic 3 has been accepted and published at http://www.defensivepublications.org/publications/prefiltering-antialiasing-... and http://ip.com/IPCOM/000232657 ..

Morphic 3 is described at http://www.jvuletich.org/Morphic3/Morphic3-201006.html

This paves the way for releasing all the code, as no one will be able to patent it.

Outstanding! Thanks for sharing this. I encourage everyone to read the paper. It is interesting and very readable dispite the technical nature of the subject.

Dave

Hi Folks,

Thanks everyone for the nice comments.

(below) Quoting tim Rowledge tim@rowledge.org:

On 03-12-2013, at 6:23 PM, J. Vuletich (mail lists) juanlists@jvuletich.org wrote:

...

Morphic 3 is described at http://www.jvuletich.org/Morphic3/Morphic3-201006.html

Excellent stuff Juan. I wonder how well we could make it work on a Pi. There’s a quite nice gpu wrapped around the ARM...

I did some experiments with a C program I built from the Slang in the M3 plugin. And compiled sample programs I found online, using Cairo and AGG. This was done for a guy who at some point wanted to build an engine for web games to compete with Flash. The program just kept drawing the tiger svg sample, counting FPS. If I remember correctly, AGG was about 5 time faster than Cairo and 2 times faster than M3. This also means that my technique was about 2.5 times faster than Cairo. All this using a C regular compiler on a Core 2 Duo. No GPU at all.

So, I guess it could be "fast enough" for most uses. But it uses float arithmetic all over the place, and I guess the code would need to be adapted to use fixed point or whatever the GPU can provide. There's a lot of fun to be had while doing that.

tim

tim Rowledge; tim@rowledge.org; http://www.rowledge.org/tim An elephant is a mouse with an operating system.

:)

Cheers, Juan Vuletich

On Thu, Dec 05, 2013 at 04:11:39PM -0800, tim Rowledge wrote:

On 03-12-2013, at 6:23 PM, J. Vuletich (mail lists) juanlists@jvuletich.org wrote:

...

Hi Folks,

Big news! The first defensive disclosure about Morphic 3 has been accepted and published at http://www.defensivepublications.org/publications/prefiltering-antialiasing-... and http://ip.com/IPCOM/000232657

? amusingly it cites a reference to a paper by an old colleague of mine, Satish Gupta - I had an experimental hardware graphics board built by Satish back in 1984 stuck in my (first in Europe!) PC-AT when I was an IBMer. 640x480 16bpp (I think) hardware anti-aliased graphics back in the days of Hercules monochrome boards.

Wow, Hercules graphics on a PC-AT. The first open source thing I ever wrote was a graphics library for devices like that. It was for PC-AT unix, which at the time had no graphics capability whatsoever. I think that I had some sort of fancy third party graphics card that emulated Hercules, CGA, and EGA graphics, and I also had an Epson dot matrix printer, which accounts for the hardcopy device support.

Amazingly the code is still enshrined for the ages in comp.source.unix at http://cd.textfiles.com/sourcecode/usenet/compsrcs/unix/volume18/gl_plot/

Newsgroups: comp.sources.unix Subject: v18i059: GL Graphics Library for AT-clone Unix, Part01/07 Date: 24 Mar 89 17:53:27 GMT

Submitted-by: umix!m-net!dtlewis!lewis Posting-number: Volume 18, Issue 59 Archive-name: gl_plot/part01

The "gl" collection of routines provides graphic device support for a number of video adapters and printers for PC/AT class computers running under Microport System V/AT, Xenix or MS-DOS. The routines emulate the BSD plot(3) library, as well as provide new routines. It runs under MSDOS/ System V/AT, SCO Xenix 286, and with Hercules, CGA, EGA, and Epson printer devices.

I am guessing that this probably does not get a lot of use nowadays ;-)

Dave

Hi David,

This work you did fits that 32768x32768 space into whatever display the user had? The first serious graphics stuff I did was around 1992, to do exactly that.

Yes, that is how it worked. The address space was 32768 x 32768, where (0,0) was the upper left corner of the screen or printed page. This was mapped to pixel resolution of the display or dot matrix printer. I provided makefiles for Microsoft C and Borland Turbo C as well as Xenix and Microport PC-AT unix, so it worked on at least those platforms. Funny, my makefile for MSC has a warning not to compile with the optimizer, which apparently did not work. Some things never change ;-)

Dave

I did a library for TurboC on MS-DOS that essentially implemented the wonderful 'draw' command from MS Extended Basic, but on a bigger space. I believe the size was 23040x16800 to have a reasonable aspect ratio, and to scale to Hercules, CGA, EGA and VGA using only integer arithmetic, and without artifacts.

Quoting "David T. Lewis" lewis@mail.msen.com:

...

On Thu, Dec 05, 2013 at 04:11:39PM -0800, tim Rowledge wrote:

...

On 03-12-2013, at 6:23 PM, J. Vuletich (mail lists) juanlists@jvuletich.org wrote:

...

Hi Folks,

Big news! The first defensive disclosure about Morphic 3 has been

accepted and published at http://www.defensivepublications.org/publications/prefiltering-antialiasing-... and http://ip.com/IPCOM/000232657

? amusingly it cites a reference to a paper by an old colleague of mine, Satish Gupta - I had an experimental hardware graphics board built by Satish back in 1984 stuck in my (first in Europe!) PC-AT when I was an IBMer. 640x480 16bpp (I think) hardware anti-aliased graphics back in the days of Hercules monochrome boards.

Wow, Hercules graphics on a PC-AT. The first open source thing I ever wrote was a graphics library for devices like that. It was for PC-AT unix, which at the time had no graphics capability whatsoever. I think that I had some sort of fancy third party graphics card that emulated Hercules, CGA, and EGA graphics, and I also had an Epson dot matrix printer, which accounts for the hardcopy device support.

Amazingly the code is still enshrined for the ages in comp.source.unix at http://cd.textfiles.com/sourcecode/usenet/compsrcs/unix/volume18/gl_plot/

Newsgroups: comp.sources.unix Subject: v18i059: GL Graphics Library for AT-clone Unix, Part01/07 Date: 24 Mar 89 17:53:27 GMT

Submitted-by: umix!m-net!dtlewis!lewis Posting-number: Volume 18, Issue 59 Archive-name: gl_plot/part01

The "gl" collection of routines provides graphic device support for a number of video adapters and printers for PC/AT class computers running under Microport System V/AT, Xenix or MS-DOS. The routines emulate the BSD plot(3) library, as well as provide new routines. It runs under MSDOS/ System V/AT, SCO Xenix 286, and with Hercules, CGA, EGA, and Epson printer devices.

I am guessing that this probably does not get a lot of use nowadays ;-)

Dave

Cheers, Juan Vuletich