public void Update(GameTime gameTime, float heightAbovePlanetSurface, Vector3 cameraPos)
{
if (SystemCore.ActiveScene.LightsInScene.Count > 0)
{
DiffuseLight light = SystemCore.ActiveScene.LightsInScene[0] as DiffuseLight;
if (groundScatteringHelper != null)
{
groundScatteringHelper.Update(heightAbovePlanetSurface, light.LightDirection,
cameraPos - CurrentCenterPosition);
if (atmosphere != null)
{
atmosphere.Update(light.LightDirection, cameraPos, heightAbovePlanetSurface);
}
}
if (CurrentOrbit != null)
{
Vector3 pointToOrbit = CurrentOrbit.OrbitPoint;
if (CurrentOrbit.BodyToOrbit != null)
{
pointToOrbit = CurrentOrbit.BodyToOrbit.CurrentCenterPosition;
}
CalculateOrbit(pointToOrbit, CurrentOrbit.Axis, CurrentOrbit.Speed);
}
if (CurrentSpin != null)
{
CalculateRotation(CurrentSpin.Axis, CurrentSpin.Speed);
}
}
}
public void Update(GameTime gameTime)
{
Vector3 planetCenter = Transform.AbsoluteTransform.Translation;
Vector3 toCenterOfPlanet = Transform.AbsoluteTransform.Translation - SystemCore.ActiveCamera.Position;
float distanceToCenterOfPlanet = toCenterOfPlanet.Length();
float surfaceDistance = distanceToCenterOfPlanet - radius;
if (HasAtmosphere)
{
atmosphere.Update(sunDirection, SystemCore.ActiveCamera.Position, distanceToCenterOfPlanet);
atmosphericScatteringHelper.Update(distanceToCenterOfPlanet, sunDirection, SystemCore.ActiveCamera.Position - Transform.AbsoluteTransform.Translation);
}
float farPlaneMultiplier = MonoMathHelper.MapFloatRange(radius, radius * 2, 0.3f, 1f, surfaceDistance);
GenerateCustomProjectionMatrix(distanceToCenterOfPlanet * farPlaneMultiplier);
var frustrum = new BoundingFrustum(SystemCore.ActiveCamera.View * customProjection);
int activeCount = 0;
foreach (PlanetNode node in activePatches.Values)
{
node.Update();
//all nodes are flagged for removal every frame.
//The LOD calculation will unflag if nodes should be kept.
node.remove = true;
if (!frustrum.Intersects(node.boundingSphere))
{
node.Disable();
}
else
{
if (SystemWarGlobalSettings.RenderQuadtreeConnectivity)
{
RenderConnections(node);
}
node.Enable();
activeCount++;
}
}
if (SystemWarGlobalSettings.RepairSeams)
{
CalculateConnectivity();
}
for (int i = 0; i < rootNodes.Count; i++)
{
PlanetNode root = rootNodes[i];
CalculatePatchLOD(root.normal, root.step, root.depth, root.min, root.max);
}
//removes nodes that have not had their flags refreshed by the LOD pass
RemoveStaleNodes();
int patchCountPerFrame = 10;
for (int i = 0; i < patchCountPerFrame; i++)
{
PlanetNode finishedNode;
if (PlanetBuilder.GetBuiltNodes(Name, out finishedNode))
{
AddPatch(finishedNode);
}
}
}
