Theo Verelst Diary Page

Latest: March 12 2001

I've decided after good example to write some diary pages with toughts and events.

Oh, in case anybody fails to understand, I'd like to remind them that these pages are copyrighted, and that everything found here may not be redistributed in any other way then over this direct link without my prior consent. That includes family, christianity, and other cheats. The simple reason is that it may well be that some people have been ill informed because they've spread illegal 'copies' of my materials even with modifications. Apart from my moral judgement, that is illegal, and will be treated as such by me. Make as many references to these pages as you like, make hardcopies, but only of the whole page, including the html-references, and without changing a iota or tittel...

And if not? I won't hesitate to use legal means to correct wrong that may be done otherwise. And I am serious. I usually am. I'm not sure I could get 'attempt to grave emotional assault' out of it, but infrigement on copyright rules is serious enough. And Jesus called upon us to respect the authorities of state, so christians would of course never do such a thing. Lying, imagine that.

Previous Diary Entries

March 12, 2001

3D graphics, that realyit, ain't it, and 10.000 sounds to chose from, and become playable in my own harware, that is cool enough.

Uploads of some recent graphics programs and other materials

I've made a page with recent software sources and program results, here for those interested in running some 486 programs, that do require plain dos for graphics, the other ones can be run in a dos window, I guess under windows 95+ too.

I tested the graphics card for gray scales and it does 256 of em, at sufficient resolution to do moderate b/w images with (I don't think color), and grx under gnu 1.6 or so does work at least after some installation effort, so in principle some 3d graphics experiments could be done.

I've started by doing some z buffer and basic primitive stuff, and at least ended up with some flat shaded 4 sided polygons with dept comparison (determining which pixel of which object is on top), and a few spheres (ellipsoides) as well. Yesterday, I added 3d rotations, and some more necessities such as some clipping and some more graphics objects.

The rotations seem to work, making for more fun scene possibilities, and gathering some stuff up in a bit neater form may do decent enough polygon rendering with some shading model, which could be the basis for doing some radiosity experiments, I'll see what seems appropriate, the full matrix approach with a few hundres polygons is already fun enough and at least ilustrative, though not too challenging. Maybe some progressive refinement (galarkin like) would make things a into a possible research idea, combining various interactions, and maybe iteration and explicit solutions.

Also, bezier surfaces are an interesting extension, which are possible just like polygons. Not that the machine makes it into incredible graphics, but just to make the basics work, and examplify some ideas it may be sufficient, not in any way being a competitive research possibility, especially in the one of the most computation intensive field of graphics.