old-www/HOWTO/3D-Modelling-4.html

49 lines
2.0 KiB
HTML

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<HTML>
<HEAD>
<META NAME="GENERATOR" CONTENT="SGML-Tools 1.0.9">
<TITLE>3D Graphics Modelling and Rendering mini-HOWTO: Miscellaneous Information</TITLE>
<LINK HREF="3D-Modelling-5.html" REL=next>
<LINK HREF="3D-Modelling-3.html" REL=previous>
<LINK HREF="3D-Modelling.html#toc4" REL=contents>
</HEAD>
<BODY>
<A HREF="3D-Modelling-5.html">Next</A>
<A HREF="3D-Modelling-3.html">Previous</A>
<A HREF="3D-Modelling.html#toc4">Contents</A>
<HR>
<H2><A NAME="Misc-Information"></A> <A NAME="s4">4. Miscellaneous Information</A></H2>
<P>Instead of a frequently asked questions section, here is information
about some of the (almost embarassing) problems faced.
<H2><A NAME="Misc-Lighting"></A> <A NAME="ss4.1">4.1 Lighting</A>
</H2>
<P>The most frustrating problem, initially, was trying to figure out why
everything was black -- and then how to actually light objects up. In
these "virtual worlds" where you are modelling objects, the worlds
are created from scratch. There is <EM>no light</EM> in the world until
you actually put a light source in it! The light sources then shine
a given direction, illuminating things in their path (according to
the surface properties of the objects). Make certain that your light
source is:
<P>
<OL>
<LI>pointing (rotated and translated) in the correct direction;</LI>
<LI>intense enough to actually cast discernable lighting.</LI>
</OL>
<H2><A NAME="Misc-Tutorials"></A> <A NAME="ss4.2">4.2 Tutorials</A>
</H2>
<P>The most basic thing a person would want to do with modelling/rendering
packages is position a sphere on a surface, give it some lighting, and
see the result. A decent tutorial should describe that first.
<P>That said, <EM>The Mops</EM> has a wonderful
<A HREF="http://www.informatik.uni-rostock.de/~rschultz/mops/tut1/tut1.html">first tutorial</A>.
<HR>
<A HREF="3D-Modelling-5.html">Next</A>
<A HREF="3D-Modelling-3.html">Previous</A>
<A HREF="3D-Modelling.html#toc4">Contents</A>
</BODY>
</HTML>