internal static LightId Create(uint GID)
{
var id = new LightId {
Index = m_lights.Allocate()
};
m_lights.Data[id.Index] = new MyLightInfo
{
FlareId = FlareId.NULL
};
MyArrayHelpers.Reserve(ref m_pointlights, id.Index + 1);
MyArrayHelpers.Reserve(ref m_spotlights, id.Index + 1);
var p1 = new MyPointlightInfo
{
LastBvhUpdatePosition = Vector3.PositiveInfinity,
BvhProxyId = -1
};
m_pointlights[id.Index] = p1;
var p2 = new MySpotlightInfo
{
LastBvhUpdatePosition = Vector3.PositiveInfinity,
BvhProxyId = -1
};
m_spotlights[id.Index] = p2;
m_idIndex[GID] = id;
return(id);
}
private static BoundingBoxD MakeAabbFromSpotlightCone(ref MySpotlightInfo spotlight, Vector3D position, Vector3 dir, Vector3 up)
{
float ratio = (float)Math.Sqrt(1 - spotlight.Spotlight.ApertureCos * spotlight.Spotlight.ApertureCos) / spotlight.Spotlight.ApertureCos;
float h = ratio * spotlight.Spotlight.Light.Range;
var bb = BoundingBoxD.CreateInvalid();
bb.Include(new Vector3D(-h, -h, 0));
bb.Include(new Vector3D(h, h, -spotlight.Spotlight.Light.Range));
return(bb.TransformFast(MatrixD.CreateLookAtInverse(position, position + dir, up)));
}