/// <summary>
/// Spocita viditelnost objektu. Na zaklade vypocte se objekt bude nebo nebude renderovat
/// </summary>
/// <remarks>Metoda je zavisla na spravne vypocitanych vzdalenostech od kamery!</remarks>
public virtual bool ComputeVisibility(ISceneCamera camera)
{
if (camera == null)
{
visible = true;
return(true);
}
ClipVolume cv = camera.GetClipVolume();
Plane[] p = new Plane[] { cv.pNear, cv.pFar, cv.pLeft, cv.pRight, cv.pTop, cv.pBottom };
Matrix boundingWorld = boundingMeshWorld[0];
float radius = GetSphereRadius() * scale;
Vector3 position = new Vector3();
position.TransformCoordinate(boundingWorld);
if (mesh == null)
{
for (int t = 0; t < p.Length; t++)
{
float dot = p[t].Dot(GetPosition()) + radius;
if (dot < 0)
{
visible = false;
return(false);
}
}
visible = true;
return(true);
}
if (distance <= radius)
{
visible = true;
return(visible);
}
for (int k = 0; k < p.Length; k++)
{
float dot = p[k].Dot(position);
if (dot + radius < 0)
{
visible = false;
return(visible);
}
}
visible = true;
return(visible);
}
public bool ComputeVisibility(ISceneCamera camera)
{
if (camera == null)
{
this.visible = true;
return(true);
}
ClipVolume cv = camera.GetClipVolume();
Plane[] p = new Plane[] { cv.pNear, cv.pFar, cv.pLeft, cv.pRight, cv.pTop, cv.pBottom };
for (int k = 0; k < p.Length; k++)
{
if (p[k].Dot(this.boundingSphereCenter) + this.radius < 0)
{
this.visible = false;
return(this.visible);
}
}
this.visible = true;
return(this.visible);
}