Altered the way that the {random} value (from 0..3) is chosen.

[freeglut] / progs / demos / Fractals_random / fractals_random.c

diff --git a/progs/demos/Fractals_random/fractals_random.c b/progs/demos/Fractals_random/fractals_random.c
index fcf9a85..9c4575f 100644 (file)
--- a/progs/demos/Fractals_random/fractals_random.c
+++ b/progs/demos/Fractals_random/fractals_random.c
@@ -63,10 +63,13 @@ static void draw_level ( int num, double m00, double m01, double m10, double m11
 
   for ( i = 0; i < 10; i++ )
   {
-    int random = (rand() >> 10) % num_trans;
-    double new_x = affine[random].a00 * current_x + affine[random].a01 * current_y + affine[random].b0 ;
-    double new_y = affine[random].a10 * current_x + affine[random].a11 * current_y + affine[random].b1 ;
-
+    int random = rand( );
+    double new_x;
+    double new_y;
+    random = (((random >> 10)) & 2) + (((random >> 20) ) & 1);
+    new_x = affine[random].a00 * current_x + affine[random].a01 * current_y + affine[random].b0 ;
+    new_y = affine[random].a10 * current_x + affine[random].a11 * current_y + affine[random].b1 ;
+    
     glVertex2d ( new_x, new_y ) ;
     current_x = new_x ;
     current_y = new_y ;