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Implemented a "FrontBack" prioritizer, using distance plus the plane equation to give double weight to prims/avatars in front of you

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This commit is contained in:
John Hurliman
2009-10-23 02:38:59 -07:00
parent 37f7277378
commit 62f1a5e36d
4 changed files with 80 additions and 5 deletions
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33
OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
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@@ -493,8 +493,8 @@ namespace OpenSim.Region.Framework.Scenes
public Vector3 GroupScale()
{
Vector3 minScale = new Vector3(Constants.RegionSize,Constants.RegionSize,Constants.RegionSize);
Vector3 maxScale = new Vector3(0f,0f,0f);
Vector3 minScale = new Vector3(Constants.RegionSize, Constants.RegionSize, Constants.RegionSize);
Vector3 maxScale = Vector3.Zero;
Vector3 finalScale = new Vector3(0.5f, 0.5f, 0.5f);
lock (m_parts)
@@ -577,7 +577,6 @@ namespace OpenSim.Region.Framework.Scenes
{
foreach (SceneObjectPart part in m_parts.Values)
{
Vector3 worldPos = part.GetWorldPosition();
Vector3 offset = worldPos - AbsolutePosition;
Quaternion worldRot;
@@ -3366,6 +3365,8 @@ namespace OpenSim.Region.Framework.Scenes
return GetPriorityByDistance(client);
case Scene.UpdatePrioritizationSchemes.SimpleAngularDistance:
return GetPriorityBySimpleAngularDistance(client);
case Scenes.Scene.UpdatePrioritizationSchemes.FrontBack:
return GetPriorityByFrontBack(client);
default:
throw new InvalidOperationException("UpdatePrioritizationScheme not defined");
}
@@ -3398,6 +3399,16 @@ namespace OpenSim.Region.Framework.Scenes
return double.NaN;
}
private double GetPriorityByFrontBack(IClientAPI client)
{
ScenePresence presence = Scene.GetScenePresence(client.AgentId);
if (presence != null)
{
return GetPriorityByFrontBack(presence.CameraPosition, presence.CameraAtAxis);
}
return double.NaN;
}
public double GetPriorityByDistance(Vector3 position)
{
return Vector3.Distance(AbsolutePosition, position);
@@ -3427,5 +3438,21 @@ namespace OpenSim.Region.Framework.Scenes
else
return double.MinValue;
}
public double GetPriorityByFrontBack(Vector3 camPosition, Vector3 camAtAxis)
{
// Distance
double priority = Vector3.Distance(camPosition, AbsolutePosition);
// Scale
//priority -= GroupScale().Length();
// Plane equation
float d = -Vector3.Dot(camPosition, camAtAxis);
float p = Vector3.Dot(camAtAxis, AbsolutePosition) + d;
if (p < 0.0f) priority *= 2.0f;
return priority;
}
}
}