initial working frustum culling implementation

[chaz/yoink] / src / Moof / Aabb.hh

diff --git a/src/Moof/Aabb.hh b/src/Moof/Aabb.hh
index b43e194784df06c96892f11d8b7129fe8fef4587..457d198495e9a358fd40e304b3236730e501af57 100644 (file)
--- a/src/Moof/Aabb.hh
+++ b/src/Moof/Aabb.hh
@@ -29,8 +29,10 @@
 #ifndef _MOOF_AABB_HH_
 #define _MOOF_AABB_HH_
 
+#include <Moof/Cullable.hh>
 #include <Moof/Drawable.hh>
 #include <Moof/Math.hh>
+#include <Moof/Plane.hh>
 
 
 namespace Mf {
@@ -40,7 +42,7 @@ namespace Mf {
  * Axis-aligned Bounding Box
  */
 
-struct Aabb : public Drawable
+struct Aabb : public Cullable, public Drawable
 {
        Vector3 min;
        Vector3 max;
@@ -103,7 +105,38 @@ struct Aabb : public Drawable
                                           (min[2] + max[2]) / 2.0);
        }
 
-       void draw(Scalar alpha) const;
+       void getOctant(Aabb& octant, int num) const;
+
+       inline Plane getPlaneXY() const
+       {
+               Plane plane;
+               plane.normal = Vector3(0.0, 0.0, 1.0);
+               plane.d = cml::dot(-plane.normal, getCenter());
+               return plane;
+       }
+
+       inline Plane getPlaneXZ() const
+       {
+               Plane plane;
+               plane.normal = Vector3(0.0, 1.0, 0.0);
+               plane.d = cml::dot(-plane.normal, getCenter());
+               return plane;
+       }
+
+       inline Plane getPlaneYZ() const
+       {
+               Plane plane;
+               plane.normal = Vector3(1.0, 0.0, 0.0);
+               plane.d = cml::dot(-plane.normal, getCenter());
+               return plane;
+       }
+
+       void getCorners(Vector3 corners[8]) const;
+
+       void encloseVertices(const Vector3 vertices[], unsigned count);
+
+       void draw(Scalar alpha = 0.0) const;
+       bool isVisible(const Camera& cam) const;
 };