static float CalculateDistanceSqr(float3 worldReferencePoint, ref LODParams lodParams)
{
if (lodParams.isOrtho)
{
return(lodParams.distanceScale * lodParams.distanceScale);
}
else
{
return(math.lengthsq(lodParams.cameraPos - worldReferencePoint) * (lodParams.distanceScale * lodParams.distanceScale));
}
}
static float CalculateDistanceSqr(float3 worldReferencePoint, ref LODParams lodParams)
{
if (lodParams.isOrtho)
{
//return worldSpaceSize * lodParams.screenRelativeMetric;
//@TODO:
throw new System.NotImplementedException();
}
else
{
return(math.lengthSquared(lodParams.cameraPos - worldReferencePoint) * lodParams.screenRelativeMetric);
}
}
public static int CalculateCurrentLODMask(float4 lodDistances, float3 worldReferencePoint, ref LODParams lodParams)
{
var distanceSqr = CalculateDistanceSqr(worldReferencePoint, ref lodParams);
return(CalculateCurrentLODMask(lodDistances, distanceSqr));
}
public static int CalculateCurrentLODIndex(float4 lodDistances, float3 worldReferencePoint, ref LODParams lodParams)
{
var distanceSqr = CalculateDistanceSqr(worldReferencePoint, ref lodParams);
var lodIndex = CalculateCurrentLODIndex(lodDistances, distanceSqr);
return(lodIndex);
}
