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Author: bigler
Date: Tue Feb 19 21:28:23 2008
New Revision: 2093

Modified:
   trunk/scenes/complexitytest.cc
   trunk/scenes/vorpal.cc
Log:
scenes/complexitytest.cc
scenes/vorpal.cc

  Replace drand48 with MT_RNG.


Modified: trunk/scenes/complexitytest.cc
==============================================================================
--- trunk/scenes/complexitytest.cc      (original)
+++ trunk/scenes/complexitytest.cc      Tue Feb 19 21:28:23 2008
@@ -32,6 +32,7 @@
 #include <Core/Exceptions/IllegalArgument.h>
 #include <Core/Exceptions/UnknownColor.h>
 #include <Core/Math/MinMax.h>
+#include <Core/Math/MT_RNG.h>
 #include <Core/Util/Args.h>
 #include <Core/Util/Preprocessor.h>
 #include <Image/TGAFile.h>
@@ -237,19 +238,20 @@
 
   cerr << "Generating " << num_objects << " instances...\n";
   Material* no_instance_matl = new NullMaterial();
+  MT_RNG rng;
   for(unsigned int i = 0; i < num_objects; ++i) {
     if(no_instances) {
-      Vector origin = Vector(drand48(), drand48(), drand48())*cube_scale;
-      Color color = Color(RGB(drand48(), drand48(), drand48()));
+      Vector origin = Vector(rng.nextReal(), rng.nextReal(), 
rng.nextReal())*cube_scale;
+      Color color = Color(RGB(rng.nextReal(), rng.nextReal(), 
rng.nextReal()));
 
       group->add(new Sphere(no_instance_matl, origin, object_scale));
 
     } else {
-      Vector origin = Vector(drand48(), drand48(), drand48())*cube_scale;
-      Vector rotation_axis = Vector(drand48(), drand48(), 
drand48()).normal();
-      Real rotation_amount = drand48()*M_PI*2.0;
+      Vector origin = Vector(rng.nextReal(), rng.nextReal(), 
rng.nextReal())*cube_scale;
+      Vector rotation_axis = Vector(rng.nextReal(), rng.nextReal(), 
rng.nextReal()).normal();
+      Real rotation_amount = rng.nextReal()*M_PI*2.0;
 
-      Color color = Color(RGB(drand48(), drand48(), drand48()));
+      Color color = Color(RGB(rng.nextReal(), rng.nextReal(), 
rng.nextReal()));
 
       AffineTransform t;
       t.initWithIdentity();

Modified: trunk/scenes/vorpal.cc
==============================================================================
--- trunk/scenes/vorpal.cc      (original)
+++ trunk/scenes/vorpal.cc      Tue Feb 19 21:28:23 2008
@@ -1,5 +1,6 @@
 #include <Core/Exceptions/IllegalArgument.h>
 #include <Core/Math/MinMax.h>
+#include <Core/Math/MT_RNG.h>
 #include <Core/Util/Args.h>
 #include <Core/Util/Preprocessor.h>
 #include <Interface/Context.h>
@@ -61,10 +62,11 @@
 //                                      64,  (ColorComponent) 0.4);
 
   //Note, we add some randomness just to test the dynnamic scenes and 
interpolation...
+  MT_RNG rng;
   for (int i = 0; i < nparticles; ++i) {
-    Vector center( (data[i*3 + 0]-min_x)/max_dim*(drand48()*.2+.9),
-                   (data[i*3 + 1]-min_y)/max_dim*(drand48()*.2+.9),
-                   data[i*3 + 2]*2*(drand48()*.2+.9));
+    Vector center( (data[i*3 + 0]-min_x)/max_dim*(rng.nextDouble()*.2+.9),
+                   (data[i*3 + 1]-min_y)/max_dim*(rng.nextDouble()*.2+.9),
+                   data[i*3 + 2]*2*(rng.nextDouble()*.2+.9));
     particles->add(new Sphere(particle_matl, center, .03));
   }
 

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• [Manta] r2093 - trunk/scenes, James Bigler, 02/19/2008

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