public unsafe static void GetDemandedLODs(ViewportRenderingContext context, Component_Mesh mesh, float cameraDistanceMinSquared, float cameraDistanceMaxSquared, out LodState lodState)
{
//var cameraDistanceMinSquared2 = cameraDistanceMinSquared;
//var cameraDistanceMaxSquared2 = cameraDistanceMaxSquared;
////!!!!fix for shadows. в случае простых билбордов тень рисуется дальше объекта другого лода, резко пропадает
//cameraDistanceRangeSquared2.Maximum *= 1.1f;
lodState = new LodState();
var lods = mesh.Result.MeshData.LODs;
if (lods != null)
{
RangeF GetLodRange(int lodIndex)
{
if (lodIndex == 0)
{
return(new RangeF(0, lods[0].Distance));
}
else
{
var arrayIndex = lodIndex - 1;
var lod = lods[arrayIndex];
float far;
if (arrayIndex + 1 < lods.Length)
{
far = lods[arrayIndex + 1].Distance;
}
else
{
far = 1000000.0f;
}
return(new RangeF(lod.Distance, far));
}
}
var lodCount = lods.Length + 1;
var pipeline = context.renderingPipeline;
var contextLodRange = pipeline.LODRange.Value;
var contextLodScale = (float)pipeline.LODScale.Value;
var lodStart = contextLodRange.Minimum;
var lodEnd = Math.Min(lodCount - 1, contextLodRange.Maximum);
if (lodStart > lodEnd)
{
lodStart = lodEnd;
}
for (int lodIndex = lodStart; lodIndex <= lodEnd; lodIndex++)
{
var lodRange = GetLodRange(lodIndex) * contextLodScale;
if (lodIndex == lodStart)
{
lodRange.Minimum = 0;
}
if (lodIndex == lodEnd)
{
lodRange.Maximum = 1000000;
}
var min = lodRange.Minimum * 0.9f;
var minSquared = min * min;
var max = lodRange.Maximum;
var maxSquared = max * max;
//early exit
if (minSquared > cameraDistanceMaxSquared)
{
break;
}
if (cameraDistanceMaxSquared >= minSquared && cameraDistanceMinSquared < maxSquared)
{
lodState.Add(lodIndex, lodRange);
}
}
if (lodState.Count == 0)
{
lodState.Add(lodEnd, new RangeF(0, 1000000));
}
lodState.FixMinMax();
}
else
{
lodState.Add(0, new RangeF(0, 1000000));
}
}
public void Lod_state_check(int hour, int minute, LodState correctState)
{
var dt = new DateTime(2020, 12, 03, hour, minute, 0, DateTimeKind.Local);
LodModule.GetLodState(dt).ShouldBe(correctState);
}
