public float GetRelevanceWeight(Planet.PointOfInterest data)
{
var weight = GetSizeOnScreen(data);
lastGenerationWeight = weight;
return(weight);
}
private float GetSizeOnScreen(Planet.PointOfInterest data)
{
var myPos = rangePosToCalculateScreenSizeOn_localToPlanet.CenterPos + planet.BigPosition;
var distanceToCamera = BigPosition.Distance(myPos, data.pos);
// TODO: this is world space, doesnt take into consideration rotation, not good,
// but we dont care about rotation, we want to have correct detail even if we are looking at chunk from side?
var sphere = rangePosToCalculateScreenSizeOn_localToPlanet.ToBoundingSphere();
var radiusWorldSpace = sphere.radius;
var fov = data.fieldOfView;
var cot = 1.0 / Mathf.Tan(fov / 2f * Mathf.Deg2Rad);
var radiusCameraSpace = radiusWorldSpace * cot / distanceToCamera;
lastDistanceToCamera = distanceToCamera;
lastRadiusWorldSpace = radiusWorldSpace;
return((float)radiusCameraSpace);
}
