public void AddVolume(BoundingVolume vol)
{
if (vol.Min.X < this.Min.X) this.Min.X = vol.Min.X;
if (vol.Min.Y < this.Min.Y) this.Min.Y = vol.Min.Y;
if (vol.Min.Z < this.Min.Z) this.Min.Z = vol.Min.Z;
if (vol.Max.X > this.Max.X) this.Max.X = vol.Max.X;
if (vol.Max.Y > this.Max.Y) this.Max.Y = vol.Max.Y;
if (vol.Max.Z > this.Max.Z) this.Max.Z = vol.Max.Z;
Vector3 dist = Max - Min;
R = dist.Length();
}
public static bool ObjectInFrustum(float x, float y, float z, BoundingVolume bound, Vector3 scale)
{
if (bound == null) return true;
float max = scale.X;
if (scale.Y > max) max = scale.Y;
if (scale.Z > max) max = scale.Z;
if (SphereInFrustum(x, y, z, bound.R * max) == 0) return false;
return true;
}
public static bool ObjectInFrustum(Vector3 position, BoundingVolume bound, Vector3 scale)
{
return ObjectInFrustum(position.X, position.Y, position.Z, bound, scale);
}
// Static constructor
static RenderAvatar()
{
AvatarBoundingVolume = new BoundingVolume();
AvatarBoundingVolume.FromScale(Vector3.One);
}
public static bool ObjectInFrustum(Vector3 position, BoundingVolume bound)
{
return(ObjectInFrustum(position.X, position.Y, position.Z, bound));
}
public static bool ObjectInFrustum(float x, float y, float z, BoundingVolume bound)
{
if (bound == null) return true;
if (SphereInFrustum(x, y, z, bound.ScaledR) == 0) return false;
return true;
}
// Static constructor
static RenderAvatar()
{
AvatarBoundingVolume = new BoundingVolume();
// Bounding sphere for avatar is 1m in diametar
// Bounding box 1m cube
// These values get scaled with Avatar.Scale by the time we perform culling
AvatarBoundingVolume.R = 1f;
AvatarBoundingVolume.Min = new Vector3(-0.5f, -0.5f, -0.5f);
AvatarBoundingVolume.Max = new Vector3(0.5f, 0.5f, 0.5f);
}
