TI-H: Re: I need 3D help! Richard?
[Prev][Next][Index][Thread]
TI-H: Re: I need 3D help! Richard?
It was my Functions, Statistics, and Trigenometry Math text book from high
school. It had some projects or something and info on various ways to
translate and rotate and scale and reflect points. It explained that it is a
metod used in many high end computer programs.
I'm not certain how spaces between points are filled or textured however.
This program merely plots the points and then connects lines between them.
The basic data matrix contains the un manipulated data. THe other matricies
calculate the data. The output matrix can be plotted or can be stored into a
second, manipulated data, matrix.
My program can be set up to store the data in a separate matrix. I just never did.
What I should have done, was have it calculate the data, store it, and then
clear the LCD and plot it. Maybe i'll change it. Just be warned that it is a
processor hungry program, and 2D is actualy already slow. Of course, an ASM
version would be faster!
> what is the name of this book and wer can i find some more info on this
> stuff .. thanx
> >I made a program that used matricies to plot 2D graphics. It's too slow for
> >real use in BASIC, but it did translation, rotation, reflection, and
> scaling
> >in a program less than 1K!!! The matrix can be expanded to 3D easily (it's
> the
> >same method many popular 3D rendering programs use, as well as Silicon
> >Graphics wireframe rendering, well, at least according to the text book I
> got
> >it from).
> >
> >Anyway, i'm guessing you could add more features.
> >
> >I suppose scaling and reflectino and stuff is unnecessary, but it's very
> >little added memory, so you might as well keep it.
> >
> >You'd need to add more keys to the loop so you can do 3D manipulation.
> >
> >There are two separate programs. One plots lines by drawing from point to
> >point to point.
> >
> >The next does individual lines, two stored points for each. It's half the
> >speed, but more flexible.
> >
> >In ASM, this would ROCK!!! wire frame 3D rendering might be useful!!!
> >matricies can store lots of data in a small space and ASM could easily
> shrink
> >the program!
> >
> >For 3D, I'm not certain what's required. It'll require some modification.
> >
> >I can probably attach it later on. I have to find it. It's for the TI-82,
> but
> >i ported it to the TI-85 as well.
--
Richard Piotter
richfile@prairie.lakes.com
The Richfiles TI Hardware and BASIC web page:
http://www.geocities.com/SiliconValley/Lakes/5081/Richfiles.html
Follow-Ups:
References: