Changeset 2105 for GTP/trunk/Lib/Vis/Preprocessing/src/IntelRayCaster.cpp

Timestamp:

02/08/07 15:46:23 (17 years ago)

Author:

bittner

Message:

simple ray separated

File:

• GTP/trunk/Lib/Vis/Preprocessing/src/IntelRayCaster.cpp (modified) (2 diffs)

GTP/trunk/Lib/Vis/Preprocessing/src/IntelRayCaster.cpp

@@ -252 +252 @@
 
 
+
+
+void
+IntelRayCaster::CastSimpleForwardRays(
+                                                                          SimpleRayContainer &rays,
+                                                                          const AxisAlignedBox3 &sbox
+                                                                          )
+{
+  int hit_triangles[16];
+  float dist[16];
+  Vector3 normals[16];
+  Vector3 min = sbox.Min();
+  Vector3 max = sbox.Max();
+  
+  int packets = rays.size() / 16;
+  
+  int i, j, k = 0;
+  Vector3 dir;
+  
+  for (i=0; i < packets; i++) {
+        for (j=0; j < 16; j++, k++)
+          mlrtaStoreRayAS16(&rays[k].mOrigin.x,
+                                                &rays[k].mDirection.x,
+                                                j);
+        
+        mlrtaTraverseGroupAS16(&min.x,
+                                                   &max.x,
+                                                   hit_triangles,
+                                                   dist);
+
+  }
+
+
+  for (; k < rays.size(); k++) {
+        double normal[3];
+        hit_triangles[0] = mlrtaIntersectAS(
+                                                                                &rays[k].mOrigin.x,
+                                                                                &rays[k].mDirection.x,
+                                                                                normal,
+                                                                                dist[0]);
+  }
+  
+}
+
+
 void
 IntelRayCaster::CastRays(
@@ -263 +308 @@
   int buckets = rays.size()/16;
   int offset = 0;
+
+#if 0
+  int time = GetTime();
+  CastSimpleForwardRays(rays, sbox);
+  cout<<1e-3*2*rays.size()/TimeDiff(time, GetTime())<<" Mrays/sec"<<endl;
+#endif
   
   for (int i=0; i < buckets; i++, offset+=16) {