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+<HTML>
+<HEAD>
+<TITLE>PVVMUD - scene file format</TITLE>
+<LINK REL=STYLESHEET HREF="/pvvmud/pvvmud.css"  TYPE="text/css">
+</HEAD>
+<BODY>
+<H1>Scene file format</H1>
+<PRE>
+Status          : suggestion
+Implementations : none
+RCS info        : $Id: scenefileformat.html,v 2.2 1999/10/15 12:47:24 andersr Exp $
+</PRE>
+<P>This file format descibe a static scene of 3d objects. Using
+keyframes to generate simple animations of transformations.
+Allows to include other scenes files as nodes.</P>
+
+<H3>Missing items</H3>
+<UL>
+  <LI>Fog!
+  <LI>LOD! Don't know if this is the correct way of doing it?
+</UL>
+
+<H2>Logical file structure</H2>
+<TABLE>
+<TR><TH></TH><TH></TH></TR>
+<TR><TD VALIGN=top><A NAME="SCENEFILE">scene file</TD><TD>= Scene head + Assembly list 
+<TR><TD VALIGN=top><A NAME="SCENEHEAD">Scene head</TD><TD>= (Version)
+<TR><TD VALIGN=top><A NAME="ASSEMBLYLIST">Assembly list</TD><TD>= { Assembly }
+<TR><TD VALIGN=top><A NAME="ASSEMBLY">Assembly</TD><TD>= (Name)+ (Visibility range) + [ Tranformation |
+    Animation list ] + (Visual) + (Light) + (Child) 
+<TR><TD VALIGN=top><A NAME="VISIBILITYRANGE">Visibility range</TD><TD>= (Min range) + (Max range)
+<TR><TD VALIGN=top><A NAME="ANIMATIONLIST">Animation list</TD><TD>= {Animation}
+<TR><TD VALIGN=top><A NAME="ANIMATION">Animation</TD><TD>= (Name) +
+    Length + Repeat + {KeyFrame}
+<TR><TD VALIGN=top><A NAME="KEYFRAME">KeyFrame</TD><TD>= (Time) + Transformation
+<TR><TD VALIGN=top><A NAME="TRANSFORMATION">Transformation</TD><TD>=	
+    (Translation) + (Rotation) 
+<TR><TD VALIGN=top><A NAME="ROTATION">Rotation</TD><TD>= * Rotation = rotx roty rotz; *
+<TR><TD VALIGN=top><A NAME="TRANSLATION">Translation</TD><TD>= * Translation = xx yy zz ; * 
+<TR><TD VALIGN=top><A NAME="VISUAL">Visual</TD><TD>= [ Geometry | Scene ]
+<TR><TD VALIGN=top><A NAME="LIGHT">Light</TD><TD>= * Don't know how this look yet *
+<TR><TD VALIGN=top><A NAME="CHILD">Child</TD><TD>= Assembly list
+<TR><TD VALIGN=top><A NAME="GEOMETRY">Geometry</TD><TD>= * Geometry = "Geofile"; *
+<TR><TD VALIGN=top><A NAME="SCENE">Scene</TD><TD>= * Scene = "Scenefile"; *
+<TR><TD VALIGN=top><A NAME="NAME">Name</TD><TD>= * Name that identify element *
+</TABLE>
+
+<H2>Example:</H2>
+<PRE>
+Scene(Version=1)
+
+Assembly {
+  Visual {
+    Geometry = "Terrain";
+  }
+}
+Assembly {
+  Transformation {
+    Translation = 200.0 100.0 0.0;
+    Rotation = 45.0 0.0 0.0;
+  }
+  Visual {
+    Geometry = "Tree";
+  }
+  Assembly(Name = "Bird nest";Max=10.0) {
+    Transformation {
+      Translation = 0.7 0.3 9.0;
+    }
+    Visual {
+      Scene = "Bird_Nest";
+    }
+  }
+  Assembly ( Name = "Moving branch" ) {
+    Animation ( Name = "default"; Time = 20; Repeat = TRUE ) {
+      KeyFrame ( Time = 0 ){
+        Rotation = 0.0 0.0 0.0;
+      }
+      KeyFrame ( Time = 5 ){
+        Rotation = 5.0 0.0 0.0;
+      }
+      KeyFrame {
+        Rotation = 0.0 0.0 0.0;
+      }
+    }
+    Visual {
+      Geometry = "Branch";
+    }
+}
+
+</PRE>
+
+</BODY>
+</HTML>