public BVHAABB3Object(Vector3 min, Vector3 max)
: base(GeoShape.GeoAABB3)
{
mAABB3 = new GeoAABB3(min, max);
mCenter = (min + max) * 0.5f;
mExtent = max - min;
}
public BVHTriangle3Object(Vector3 p1, Vector3 p2, Vector3 p3, int meshIndex = 0, int faceIndex = 0)
: base(GeoShape.GeoTriangle3)
{
mP1 = p1;
mP2 = p2;
mP3 = p3;
mCenter = (mP1 + mP2 + mP3) * 0.333333f;
mAABB = new GeoAABB3(Vector3.Min(Vector3.Min(mP1, mP2), mP3), Vector3.Max(Vector3.Max(mP1, mP2), mP3));
mMeshIndex = meshIndex;
mFaceIndex = faceIndex;
}
public static GeoAABB3 GetAABB(List <Vector3> points)
{
GeoAABB3 aabb = new GeoAABB3();
if (points.Count > 0)
{
aabb.mMin = points[0];
aabb.mMax = points[0];
for (int i = 1; i < points.Count; ++i)
{
aabb.mMax = Vector3.Max(aabb.mMax, points[i]);
aabb.mMin = Vector3.Min(aabb.mMin, points[i]);
}
}
return(aabb);
}
public void ExpandToInclude(GeoAABB3 b)
{
mMin = Vector3.Min(mMin, b.mMin);
mMax = Vector3.Max(mMax, b.mMax);
mExtent = mMax - mMin;
}