update defaults

src/mandelbulb.rs

@@ -36,11 +36,11 @@ impl Default for MandelbulbSettings {
         Self {
             power: 8.,
             iterations: 256,
-            max_distance: 100.,
+            max_distance: 2.,
             max_steps: 128,
             ray_epsilon: 0.001,
             normal_epsilon: 0.001,
-            scale: 0.7,
+            scale: 0.9,
         }
     }
 }