Contents of node12

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<H1><A ID="SECTION00420000000000000000"> The World Object</A> </H1>

! Writing a input file is principally a matter of defining a special aggregate object, the World object, ! which is a list of the objects in the scene. When writing a input file, all objects that are instantiated outside of object-definition blocks are added to the World object; you need not (nor should you) define the World object explicitly in the input file. *************** *** 67,73 **** group of one or more metaballs. Each metaball is defined by its position p, radius r, and strength st. ! For now, see the source code for more explicit documentation. There is no inverse mapping method for blobs.

<IMG STYLE="height: 2.38ex; vertical-align: 176.40ex; " SRC="img3.png" ALT="
$\begin{defprim}{box}{\evec{corner1} \evec{corner2}} --- 67,77 ---- group of one... ...y its position \evec{p}, radius {\em r}, and strength {\em st}. \end{defprim}$
"> ! The metaballs affect each other according to a superimposed ! density distribution: ! <!– MATH

!F(x, y, z) = $\displaystyle \sum_{{i=0}}^{n}$ b_ie^-d_i - T = 0!

–> <DIV ALIGN="CENTER"> !F(x, y, z) = <IMG STYLE="height: 2.17ex; vertical-align: 174.16ex; " SRC="img4.png" ALT=" $\displaystyle \sum_{{{i=0}}}^{{n}}$ ">bie-di - T = 0! </DIV> There is no inverse mapping method for blobs.

boxcorner1 corner2 *************** *** 132,143 **** <IMG STYLE="height: 6.50ex; vertical-align: 172.01ex; " SRC="img5.png" ALT="
$\begin{defprim}{poly}{\evec{p1} \evec{p2} \evec{p3} [\evec{p4} \ldots ]} Create.... .....er of vertices in a polygon is limited only by available memory. \end{defprim}$
"> Inverse mapping for arbitrary polygons is problematical. ! ! punts and equate u with the x coordinate of the point of intersection, and v with the y coordinate.

heightfieldfile — 136,147 —- <IMG STYLE="height: 2.38ex; vertical-align: 176.27ex; " SRC="img6.png" ALT="
$\begin{defprim}{poly}{\evec{p1} \evec{p2} \evec{p3} [\evec{p4} \ldots ]} Create.... .....er of vertices in a polygon is limited only by available memory. \end{defprim}$
"> Inverse mapping for arbitrary polygons is problematical. ! ! punts and equates u with the x coordinate of the point of intersection, and v with the y coordinate.

heightfieldfile *************** *** 254,269 **** first given object minus the space where the second intersected the first.

! <HR> <!–Table of Child-Links–> <A ID="CHILD_LINKS">Subsections</A>

<UL> <LI><A NAME="tex2html49" HREF="node13_ct.html" TARGET="contents">CSG in Rayshade</A> <LI><A NAME="tex2html50" HREF="node14_mn.html" TARGET="main">CSG in </A> <LI><A NAME="tex2html51" HREF="node15_mn.html" TARGET="main">Potential CSG Problems</A> <LI><A NAME="tex2html52" HREF="node16_mn.html" TARGET="main">Potential CSG Problems</A> </UL> <!–End of Table of Child-Links–>

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