[Gzz-commits] gzz/Documentation/Manuscripts/Irregu irregu.tex...

[Janne V. Kujala]

CVSROOT:        /cvsroot/gzz
Module name:    gzz
Changes by:     Janne V. Kujala <address@hidden>        02/11/12 06:02:37

Modified files:
        Documentation/Manuscripts/Irregu: irregu.tex 
Added files:
        Documentation/Manuscripts/Irregu: irregu_projtex.jpeg 

Log message:
        more

CVSWeb URLs:
http://savannah.gnu.org/cgi-bin/viewcvs/gzz/gzz/Documentation/Manuscripts/Irregu/irregu_projtex.jpeg?rev=1.1
http://savannah.gnu.org/cgi-bin/viewcvs/gzz/gzz/Documentation/Manuscripts/Irregu/irregu.tex.diff?tr1=1.17&tr2=1.18&r1=text&r2=text

Patches:
Index: gzz/Documentation/Manuscripts/Irregu/irregu.tex
diff -u gzz/Documentation/Manuscripts/Irregu/irregu.tex:1.17 
gzz/Documentation/Manuscripts/Irregu/irregu.tex:1.18
--- gzz/Documentation/Manuscripts/Irregu/irregu.tex:1.17        Tue Nov 12 
05:52:13 2002
+++ gzz/Documentation/Manuscripts/Irregu/irregu.tex     Tue Nov 12 06:02:36 2002
@@ -221,6 +221,17 @@
 
 \subsection{A shape with the correct type of motion}
 
+Surface defined by $(x, y, f(x,y))$ stored in a ``displacement map'' texture.
+The jagged version of an edge in the $z=0$ plane is obtained by first
+intersecting another plane going through the edge with the surface
+and then ``projecting'' the intersection to the $z=0$ plane.
+XXX: projecting so that the desired ``shape width'' is obtained.
+
+If the cutting plane is normal to $z=0$ plane, the edge is attached.
+Otherwise, the edge may be sprinkled.
+
+---
+
 Drawing a shape with the correct properties is relatively
 simple: drawing a single polygon with $\alpha=0$ at $x=0$ and
 $\alpha=1$ at $x=1$, using ALPHA\_TEST with the cutoff set close to one,