<!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>
