[Gzz-commits] manuscripts/AGPU fillets.txt

[Tuomas J. Lukka]

CVSROOT:        /cvsroot/gzz
Module name:    manuscripts
Changes by:     Tuomas J. Lukka <address@hidden>        03/04/14 07:03:28

Modified files:
        AGPU           : fillets.txt 

Log message:
        Fillet twids

CVSWeb URLs:
http://savannah.gnu.org/cgi-bin/viewcvs/gzz/manuscripts/AGPU/fillets.txt.diff?tr1=1.5&tr2=1.6&r1=text&r2=text

Patches:
Index: manuscripts/AGPU/fillets.txt
diff -u manuscripts/AGPU/fillets.txt:1.5 manuscripts/AGPU/fillets.txt:1.6
--- manuscripts/AGPU/fillets.txt:1.5    Sat Apr 12 07:00:37 2003
+++ manuscripts/AGPU/fillets.txt        Mon Apr 14 07:03:28 2003
@@ -53,9 +53,9 @@
 This is important for some of our user interfaces.
 [ screenshot from fillets demo showing both wireframe and normal ]
 
-Fig.4. A more flexible algorithm for creating filleted shapes. 
-This algorithm has to create the shape from polygons instead 
-of prerendered textures.
+Fig.4. The mathematics behind a more flexible algorithm for creating 
+filleted shapes.  This algorithm creates the shape from polygons instead 
+of prerendered textures by shifting the vertices in a vertex program.
 
 Fig.5. How edges of constant thickness and even of textures can be drawn
 for the general polygonized shape using the Z buffer.
@@ -67,12 +67,12 @@
 Fig.6. A random, badly laid out graph rendered using the polygonized
 algorithm. To demonstrate the edge-drawing system, we have used a 1D
 texture on the edge, creating two thin lines on the edges. The shapes
-are unbroken.
+are unbroken. Using features of the GPU this figure is drawn very quickly.
 
-Fig.7. Of course, since we're bevelling inside, we *can*, if we want to,
-also show the bevels using light. However, the angles of the bevels
-seen in the image need not correspond at all to the actual angles
-in the Z-buffer.
+Fig.7. Of course, since we're bevelling the edge anyway, we *can*, if
+we want to, also show the bevels using lighting. Naturally, the angles of
+the bevels seen in the image need not correspond at all to the actual
+angles in the Z-buffer.