began black and white edition

handout/diagrams/edge_sampling.tex

@@ -22,7 +22,7 @@
     % occlusion tri
     \draw[
         fill,
-        red
+        darkgray
     ] (3,2) -- (4.5,0.2) -- (6,3);
 
     % samples
@@ -33,10 +33,10 @@
             3.5/2.5,
             5.5/0.5
         }
-    \node[fill = yellow] at (\x,\y) {};
+    \node[fill = black] at (\x,\y) {};
 
     \node[
-        fill = yellow,
-        fill opacity = 0.4,
+        fill = black,
+        fill opacity = 0.5,
     ] at (4.5,1.5) {};
 \end{tikzpicture}