Implement llCastRay fully, simplified.
Magnuz Binder
dahlia
parent
30f9e5372e
commit
43b8bd0c35
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@ -218,6 +218,19 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
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protected float m_lABB2SitZ0 = -0.25f;
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protected float m_lABB2SitZ0 = -0.25f;
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protected float m_lABB2SitZ1 = 0.25f;
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protected float m_lABB2SitZ1 = 0.25f;
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protected float m_primSafetyCoeffX = 2.414214f;
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protected float m_primSafetyCoeffY = 2.414214f;
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protected float m_primSafetyCoeffZ = 1.618034f;
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protected float m_floatToleranceInCastRay = 0.000001f;
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protected float m_floatTolerance2InCastRay = 0.0001f;
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protected int m_maxHitsInCastRay = 16;
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protected int m_maxHitsPerPrimInCastRay = 16;
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protected int m_maxHitsPerObjectInCastRay = 16;
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protected bool m_detectExitsInCastRay = false;
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protected bool m_filterPartsInCastRay = false;
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protected bool m_doAttachmentsInCastRay = false;
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protected bool m_useCastRayV1 = true;
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//An array of HTTP/1.1 headers that are not allowed to be used
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//An array of HTTP/1.1 headers that are not allowed to be used
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//as custom headers by llHTTPRequest.
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//as custom headers by llHTTPRequest.
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private string[] HttpStandardHeaders =
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private string[] HttpStandardHeaders =
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@ -320,6 +333,18 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
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m_lABB1SitZ1 = lslConfig.GetFloat("LowerAvatarBoundingBoxSittingZcoeff", m_lABB1SitZ1);
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m_lABB1SitZ1 = lslConfig.GetFloat("LowerAvatarBoundingBoxSittingZcoeff", m_lABB1SitZ1);
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m_lABB2SitZ0 = lslConfig.GetFloat("UpperAvatarBoundingBoxSittingZconst", m_lABB2SitZ0);
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m_lABB2SitZ0 = lslConfig.GetFloat("UpperAvatarBoundingBoxSittingZconst", m_lABB2SitZ0);
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m_lABB2SitZ1 = lslConfig.GetFloat("UpperAvatarBoundingBoxSittingZcoeff", m_lABB2SitZ1);
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m_lABB2SitZ1 = lslConfig.GetFloat("UpperAvatarBoundingBoxSittingZcoeff", m_lABB2SitZ1);
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m_primSafetyCoeffX = lslConfig.GetFloat("PrimBoundingBoxSafetyCoefficientX", m_primSafetyCoeffX);
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m_primSafetyCoeffY = lslConfig.GetFloat("PrimBoundingBoxSafetyCoefficientY", m_primSafetyCoeffY);
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m_primSafetyCoeffZ = lslConfig.GetFloat("PrimBoundingBoxSafetyCoefficientZ", m_primSafetyCoeffZ);
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m_floatToleranceInCastRay = lslConfig.GetFloat("FloatToleranceInLlCastRay", m_floatToleranceInCastRay);
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m_floatTolerance2InCastRay = lslConfig.GetFloat("FloatTolerance2InLlCastRay", m_floatTolerance2InCastRay);
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m_maxHitsInCastRay = lslConfig.GetInt("MaxHitsInLlCastRay", m_maxHitsInCastRay);
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m_maxHitsPerPrimInCastRay = lslConfig.GetInt("MaxHitsPerPrimInLlCastRay", m_maxHitsPerPrimInCastRay);
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m_maxHitsPerObjectInCastRay = lslConfig.GetInt("MaxHitsPerObjectInLlCastRay", m_maxHitsPerObjectInCastRay);
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m_detectExitsInCastRay = lslConfig.GetBoolean("DetectExitHitsInLlCastRay", m_detectExitsInCastRay);
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m_filterPartsInCastRay = lslConfig.GetBoolean("FilterPartsInLlCastRay", m_filterPartsInCastRay);
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m_doAttachmentsInCastRay = lslConfig.GetBoolean("DoAttachmentsInLlCastRay", m_doAttachmentsInCastRay);
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m_useCastRayV1 = lslConfig.GetBoolean("UseLlCastRayV1", m_useCastRayV1);
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}
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}
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IConfig smtpConfig = seConfigSource.Configs["SMTP"];
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IConfig smtpConfig = seConfigSource.Configs["SMTP"];
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@ -13738,7 +13763,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
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return contacts[0];
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return contacts[0];
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}
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}
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public LSL_List llCastRay(LSL_Vector start, LSL_Vector end, LSL_List options)
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public LSL_List llCastRayV1(LSL_Vector start, LSL_Vector end, LSL_List options)
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{
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{
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LSL_List list = new LSL_List();
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LSL_List list = new LSL_List();
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@ -13929,6 +13954,739 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
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return list;
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return list;
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}
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}
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/// <summary>
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/// Full implementation of llCastRay similar to SL 2015-04-21.
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/// http://wiki.secondlife.com/wiki/LlCastRay
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/// Uses pure geometry, bounding shapes, meshing and no physics
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/// for prims, sculpts, meshes, avatars and terrain.
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/// Implements all flags, reject types and data flags.
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/// Can handle both objects/groups and prims/parts, by config.
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/// May give poor results with multi-part meshes where "root"
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/// part doesn't dominate, owing to "guessed" bounding boxes.
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/// May sometimes be inaccurate owing to calculation precision
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/// and a bug in libopenmetaverse PrimMesher.
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/// </summary>
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public LSL_List llCastRay(LSL_Vector start, LSL_Vector end, LSL_List options)
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{
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// Use llCastRay v1 if configured
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if (m_useCastRayV1)
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return llCastRayV1(start, end, options);
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// Initialize
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m_host.AddScriptLPS(1);
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List<RayHit> rayHits = new List<RayHit>();
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LSL_List result = new LSL_List();
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float tol = m_floatToleranceInCastRay;
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float tol2 = m_floatTolerance2InCastRay;
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// Get input options
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int rejectTypes = 0;
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int dataFlags = 0;
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int maxHits = 1;
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bool detectPhantom = false;
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for (int i = 0; i < options.Length; i += 2)
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{
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if (options.GetLSLIntegerItem(i) == ScriptBaseClass.RC_REJECT_TYPES)
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rejectTypes = options.GetLSLIntegerItem(i + 1);
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else if (options.GetLSLIntegerItem(i) == ScriptBaseClass.RC_DATA_FLAGS)
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dataFlags = options.GetLSLIntegerItem(i + 1);
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else if (options.GetLSLIntegerItem(i) == ScriptBaseClass.RC_MAX_HITS)
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maxHits = options.GetLSLIntegerItem(i + 1);
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else if (options.GetLSLIntegerItem(i) == ScriptBaseClass.RC_DETECT_PHANTOM)
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detectPhantom = (options.GetLSLIntegerItem(i + 1) != 0);
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}
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if (maxHits > m_maxHitsInCastRay)
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maxHits = m_maxHitsInCastRay;
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bool rejectAgents = ((rejectTypes & ScriptBaseClass.RC_REJECT_AGENTS) != 0);
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bool rejectPhysical = ((rejectTypes & ScriptBaseClass.RC_REJECT_PHYSICAL) != 0);
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bool rejectNonphysical = ((rejectTypes & ScriptBaseClass.RC_REJECT_NONPHYSICAL) != 0);
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bool rejectLand = ((rejectTypes & ScriptBaseClass.RC_REJECT_LAND) != 0);
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bool getNormal = ((dataFlags & ScriptBaseClass.RC_GET_NORMAL) != 0);
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bool getRootKey = ((dataFlags & ScriptBaseClass.RC_GET_ROOT_KEY) != 0);
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bool getLinkNum = ((dataFlags & ScriptBaseClass.RC_GET_LINK_NUM) != 0);
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// Calculate some basic parameters
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Vector3 ray = end - start;
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float rayLength = ray.Length();
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// Try to get a mesher and return failure if none or degenerate ray
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IRendering primMesher = null;
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List<string> renderers = RenderingLoader.ListRenderers(Util.ExecutingDirectory());
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if (renderers.Count < 1 || rayLength < tol)
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{
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result.Add(new LSL_Integer(ScriptBaseClass.RCERR_UNKNOWN));
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return result;
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}
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primMesher = RenderingLoader.LoadRenderer(renderers[0]);
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// Used to translate and rotate world so ray is along negative Z axis from origo and
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// calculations mostly simplified to a 2D projecttion on the X-Y plane
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Vector3 posProj = new Vector3(-start);
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Quaternion rotProj = Vector3.RotationBetween(ray, new Vector3(0.0f, 0.0f, -1.0f));
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Quaternion rotBack = Quaternion.Inverse(rotProj);
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// Iterate over all objects/groups and prims/parts in region
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World.ForEachSOG(
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delegate(SceneObjectGroup group)
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{
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// Check group filters unless part filters are configured
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bool isPhysical = (group.RootPart != null && group.RootPart.PhysActor != null && group.RootPart.PhysActor.IsPhysical);
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bool isNonphysical = !isPhysical;
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bool isPhantom = group.IsPhantom || group.IsVolumeDetect;
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bool isAttachment = group.IsAttachment;
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bool doGroup = true;
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if (isPhysical && rejectPhysical)
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doGroup = false;
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if (isNonphysical && rejectNonphysical)
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doGroup = false;
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if (isPhantom && detectPhantom)
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doGroup = true;
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if (m_filterPartsInCastRay)
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doGroup = true;
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if (isAttachment && !m_doAttachmentsInCastRay)
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doGroup = false;
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// Parse object/group if passed filters
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if (doGroup)
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{
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// Iterate over all prims/parts in object/group
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foreach(SceneObjectPart part in group.Parts)
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{
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// Check part filters if configured
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if (m_filterPartsInCastRay)
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{
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isPhysical = (part.PhysActor != null && part.PhysActor.IsPhysical);
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isNonphysical = !isPhysical;
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isPhantom = ((part.Flags & PrimFlags.Phantom) != 0) || (part.VolumeDetectActive);
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bool doPart = true;
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if (isPhysical && rejectPhysical)
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doPart = false;
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if (isNonphysical && rejectNonphysical)
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doPart = false;
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if (isPhantom && detectPhantom)
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doPart = true;
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if (!doPart)
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continue;
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}
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// Parse prim/part if passed filters
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// Estimate bounding box from size box
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Vector3 scaleSafe = part.Scale;
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if (!part.Shape.SculptEntry)
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scaleSafe = scaleSafe * (new Vector3(m_primSafetyCoeffX, m_primSafetyCoeffY, m_primSafetyCoeffZ));
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// Filter parts by bounding shapes
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Vector3 posPartRel = part.GetWorldPosition() + posProj;
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Vector3 posPartProj = posPartRel * rotProj;
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if (InBoundingShapes(ray, rayLength, scaleSafe, posPartRel, posPartProj, rotProj))
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{
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// Prepare data needed to check for ray hits
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RayTrans rayTrans = new RayTrans();
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rayTrans.PartId = part.UUID;
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rayTrans.GroupId = part.ParentGroup.UUID;
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rayTrans.Link = group.PrimCount > 1 ? part.LinkNum : 0;
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rayTrans.Scale = part.Scale;
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rayTrans.PositionPartProj = posPartProj;
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rayTrans.PositionProj = posProj;
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rayTrans.RotationPartProj = rotProj * part.GetWorldRotation();
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rayTrans.RotationBack = rotBack;
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rayTrans.NeedsEnds = true;
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rayTrans.RayLength = rayLength;
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rayTrans.Tolerance = tol;
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rayTrans.Tolerance2 = tol2;
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// Make an OMV prim to be able to mesh part
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Primitive omvPrim = part.Shape.ToOmvPrimitive(posPartProj, rayTrans.RotationPartProj);
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byte[] sculptAsset = null;
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if (omvPrim.Sculpt != null)
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sculptAsset = World.AssetService.GetData(omvPrim.Sculpt.SculptTexture.ToString());
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// When part is mesh, get and check mesh
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if (omvPrim.Sculpt != null && omvPrim.Sculpt.Type == SculptType.Mesh && sculptAsset != null)
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{
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AssetMesh meshAsset = new AssetMesh(omvPrim.Sculpt.SculptTexture, sculptAsset);
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FacetedMesh mesh = null;
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FacetedMesh.TryDecodeFromAsset(omvPrim, meshAsset, DetailLevel.Highest, out mesh);
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meshAsset = null;
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AddRayInFacetedMesh(mesh, rayTrans, ref rayHits);
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mesh = null;
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}
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// When part is sculpt, create and check mesh
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// Quirk: Generated sculpt mesh is about 2.8% smaller in X and Y than visual sculpt.
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else if (omvPrim.Sculpt != null && omvPrim.Sculpt.Type != SculptType.Mesh && sculptAsset != null)
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{
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IJ2KDecoder imgDecoder = World.RequestModuleInterface<IJ2KDecoder>();
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if (imgDecoder != null)
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{
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Image sculpt = imgDecoder.DecodeToImage(sculptAsset);
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if (sculpt != null)
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{
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SimpleMesh mesh = primMesher.GenerateSimpleSculptMesh(omvPrim, (Bitmap)sculpt, DetailLevel.Medium);
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sculpt.Dispose();
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AddRayInSimpleMesh(mesh, rayTrans, ref rayHits);
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mesh = null;
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}
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}
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}
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// When part is prim, create and check mesh
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else if (omvPrim.Sculpt == null)
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{
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if (
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omvPrim.PrimData.PathBegin == 0.0 && omvPrim.PrimData.PathEnd == 1.0 &&
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omvPrim.PrimData.PathTaperX == 0.0 && omvPrim.PrimData.PathTaperY == 0.0 &&
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omvPrim.PrimData.PathSkew == 0.0 &&
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omvPrim.PrimData.PathTwist - omvPrim.PrimData.PathTwistBegin == 0.0
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)
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rayTrans.NeedsEnds = false;
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SimpleMesh mesh = primMesher.GenerateSimpleMesh(omvPrim, DetailLevel.Medium);
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AddRayInSimpleMesh(mesh, rayTrans, ref rayHits);
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mesh = null;
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}
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}
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}
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}
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}
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);
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// Check avatar filter
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if (!rejectAgents)
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{
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// Iterate over all avatars in region
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World.ForEachRootScenePresence(
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delegate (ScenePresence sp)
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{
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// Parse avatar
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// Get bounding box
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Vector3 lower;
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Vector3 upper;
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BoundingBoxOfScenePresence(sp, out lower, out upper);
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Vector3 scale = upper - lower;
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// Filter avatars by bounding shapes
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Vector3 posPartRel = sp.AbsolutePosition + posProj + (lower + upper) * 0.5f * sp.Rotation;
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Vector3 posPartProj = posPartRel * rotProj;
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if (InBoundingShapes(ray, rayLength, scale, posPartRel, posPartProj, rotProj))
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{
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// Prepare data needed to check for ray hits
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RayTrans rayTrans = new RayTrans();
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rayTrans.PartId = sp.UUID;
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rayTrans.GroupId = sp.ParentPart != null ? sp.ParentPart.ParentGroup.UUID : sp.UUID;
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rayTrans.Link = sp.ParentPart != null ? UUID2LinkNumber(sp.ParentPart, sp.UUID) : 0;
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rayTrans.Scale = scale;
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rayTrans.PositionPartProj = posPartProj;
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rayTrans.PositionProj = posProj;
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rayTrans.RotationPartProj = rotProj * sp.Rotation;
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rayTrans.RotationBack = rotBack;
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rayTrans.NeedsEnds = false;
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rayTrans.RayLength = rayLength;
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rayTrans.Tolerance = tol;
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rayTrans.Tolerance2 = tol2;
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// Make OMV prim, create and check mesh
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Primitive omvPrim = MakeOpenMetaversePrim(scale, posPartProj, rayTrans.RotationPartProj, ScriptBaseClass.PRIM_TYPE_SPHERE);
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SimpleMesh mesh = primMesher.GenerateSimpleMesh(omvPrim, DetailLevel.Medium);
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AddRayInSimpleMesh(mesh, rayTrans, ref rayHits);
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mesh = null;
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}
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}
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);
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}
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// Check terrain filter
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if (!rejectLand)
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{
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// Parse terrain
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// Mesh terrain and check projected bounding box
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Vector3 posPartProj = posProj * rotProj;
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Quaternion rotPartProj = rotProj;
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Vector3 lower;
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Vector3 upper;
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List<Tri> triangles = TrisFromHeightmapUnderRay(start, end, out lower, out upper);
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Vector3 lowerBox = new Vector3(float.MaxValue, float.MaxValue, float.MaxValue);
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Vector3 upperBox = new Vector3(float.MinValue, float.MinValue, float.MinValue);
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int dummy = 0;
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AddBoundingBoxOfSimpleBox(lower, upper, posPartProj, rotPartProj, true, ref lowerBox, ref upperBox, ref dummy);
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if (lowerBox.X <= tol && lowerBox.Y <= tol && lowerBox.Z <= tol && upperBox.X >= -tol && upperBox.Y >= -tol && upperBox.Z >= -rayLength - tol)
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{
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// Prepare data needed to check for ray hits
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RayTrans rayTrans = new RayTrans();
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rayTrans.PartId = UUID.Zero;
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rayTrans.GroupId = UUID.Zero;
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||||||
|
rayTrans.Link = 0;
|
||||||
|
rayTrans.Scale = new Vector3 (1.0f, 1.0f, 1.0f);
|
||||||
|
rayTrans.PositionPartProj = posPartProj;
|
||||||
|
rayTrans.PositionProj = posProj;
|
||||||
|
rayTrans.RotationPartProj = rotPartProj;
|
||||||
|
rayTrans.RotationBack = rotBack;
|
||||||
|
rayTrans.NeedsEnds = true;
|
||||||
|
rayTrans.RayLength = rayLength;
|
||||||
|
rayTrans.Tolerance = tol;
|
||||||
|
rayTrans.Tolerance2 = tol2;
|
||||||
|
|
||||||
|
// Check mesh
|
||||||
|
AddRayInTris(triangles, rayTrans, ref rayHits);
|
||||||
|
triangles = null;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Sort hits by ascending distance
|
||||||
|
rayHits.Sort((s1, s2) => s1.Distance.CompareTo(s2.Distance));
|
||||||
|
|
||||||
|
// Check excess hits per part and group
|
||||||
|
for (int t = 0; t < 2; t++)
|
||||||
|
{
|
||||||
|
int maxHitsPerType = 0;
|
||||||
|
UUID id = UUID.Zero;
|
||||||
|
if (t == 0)
|
||||||
|
maxHitsPerType = m_maxHitsPerPrimInCastRay;
|
||||||
|
else
|
||||||
|
maxHitsPerType = m_maxHitsPerObjectInCastRay;
|
||||||
|
|
||||||
|
// Handle excess hits only when needed
|
||||||
|
if (maxHitsPerType < m_maxHitsInCastRay)
|
||||||
|
{
|
||||||
|
// Find excess hits
|
||||||
|
Hashtable hits = new Hashtable();
|
||||||
|
for (int i = rayHits.Count - 1; i >= 0; i--)
|
||||||
|
{
|
||||||
|
if (t == 0)
|
||||||
|
id = rayHits[i].PartId;
|
||||||
|
else
|
||||||
|
id = rayHits[i].GroupId;
|
||||||
|
if (hits.ContainsKey(id))
|
||||||
|
hits[id] = (int)hits[id] + 1;
|
||||||
|
else
|
||||||
|
hits[id] = 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Remove excess hits
|
||||||
|
for (int i = rayHits.Count - 1; i >= 0; i--)
|
||||||
|
{
|
||||||
|
if (t == 0)
|
||||||
|
id = rayHits[i].PartId;
|
||||||
|
else
|
||||||
|
id = rayHits[i].GroupId;
|
||||||
|
int hit = (int)hits[id];
|
||||||
|
if (hit > m_maxHitsPerPrimInCastRay)
|
||||||
|
{
|
||||||
|
rayHits.RemoveAt(i);
|
||||||
|
hit--;
|
||||||
|
hits[id] = hit;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Parse hits into result list according to data flags
|
||||||
|
int hitCount = rayHits.Count;
|
||||||
|
if (hitCount > maxHits)
|
||||||
|
hitCount = maxHits;
|
||||||
|
for (int i = 0; i < hitCount; i++)
|
||||||
|
{
|
||||||
|
RayHit rayHit = rayHits[i];
|
||||||
|
if (getRootKey)
|
||||||
|
result.Add(new LSL_Key(rayHit.GroupId.ToString()));
|
||||||
|
else
|
||||||
|
result.Add(new LSL_Key(rayHit.PartId.ToString()));
|
||||||
|
result.Add(new LSL_Vector(rayHit.Position));
|
||||||
|
if (getLinkNum)
|
||||||
|
result.Add(new LSL_Integer(rayHit.Link));
|
||||||
|
if (getNormal)
|
||||||
|
result.Add(new LSL_Vector(rayHit.Normal));
|
||||||
|
}
|
||||||
|
result.Add(new LSL_Integer(hitCount));
|
||||||
|
return result;
|
||||||
|
}
|
||||||
|
|
||||||
|
/// <summary>
|
||||||
|
/// Struct for transmitting parameters required for finding llCastRay ray hits.
|
||||||
|
/// </summary>
|
||||||
|
public struct RayTrans
|
||||||
|
{
|
||||||
|
public UUID PartId;
|
||||||
|
public UUID GroupId;
|
||||||
|
public int Link;
|
||||||
|
public Vector3 Scale;
|
||||||
|
public Vector3 PositionPartProj;
|
||||||
|
public Vector3 PositionProj;
|
||||||
|
public Quaternion RotationPartProj;
|
||||||
|
public Quaternion RotationBack;
|
||||||
|
public bool NeedsEnds;
|
||||||
|
public float RayLength;
|
||||||
|
public float Tolerance;
|
||||||
|
public float Tolerance2;
|
||||||
|
}
|
||||||
|
|
||||||
|
/// <summary>
|
||||||
|
/// Struct for llCastRay ray hits.
|
||||||
|
/// </summary>
|
||||||
|
public struct RayHit
|
||||||
|
{
|
||||||
|
public UUID PartId;
|
||||||
|
public UUID GroupId;
|
||||||
|
public int Link;
|
||||||
|
public Vector3 Position;
|
||||||
|
public Vector3 Normal;
|
||||||
|
public float Distance;
|
||||||
|
}
|
||||||
|
|
||||||
|
/// <summary>
|
||||||
|
/// Helper to parse SimpleMesh for ray hits.
|
||||||
|
/// </summary>
|
||||||
|
private void AddRayInSimpleMesh(SimpleMesh mesh, RayTrans rayTrans, ref List<RayHit> rayHits)
|
||||||
|
{
|
||||||
|
if (mesh != null)
|
||||||
|
{
|
||||||
|
for (int i = 0; i < mesh.Indices.Count; i += 3)
|
||||||
|
{
|
||||||
|
Tri triangle = new Tri();
|
||||||
|
triangle.p1 = mesh.Vertices[mesh.Indices[i]].Position;
|
||||||
|
triangle.p2 = mesh.Vertices[mesh.Indices[i + 1]].Position;
|
||||||
|
triangle.p3 = mesh.Vertices[mesh.Indices[i + 2]].Position;
|
||||||
|
AddRayInTri(triangle, rayTrans, ref rayHits);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/// <summary>
|
||||||
|
/// Helper to parse FacetedMesh for ray hits.
|
||||||
|
/// </summary>
|
||||||
|
private void AddRayInFacetedMesh(FacetedMesh mesh, RayTrans rayTrans, ref List<RayHit> rayHits)
|
||||||
|
{
|
||||||
|
if (mesh != null)
|
||||||
|
{
|
||||||
|
foreach (Face face in mesh.Faces)
|
||||||
|
{
|
||||||
|
for (int i = 0; i <face.Indices.Count; i += 3)
|
||||||
|
{
|
||||||
|
Tri triangle = new Tri();
|
||||||
|
triangle.p1 = face.Vertices[face.Indices[i]].Position;
|
||||||
|
triangle.p2 = face.Vertices[face.Indices[i + 1]].Position;
|
||||||
|
triangle.p3 = face.Vertices[face.Indices[i + 2]].Position;
|
||||||
|
AddRayInTri(triangle, rayTrans, ref rayHits);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/// <summary>
|
||||||
|
/// Helper to parse Tri (triangle) List for ray hits.
|
||||||
|
/// </summary>
|
||||||
|
private void AddRayInTris(List<Tri> triangles, RayTrans rayTrans, ref List<RayHit> rayHits)
|
||||||
|
{
|
||||||
|
foreach (Tri triangle in triangles)
|
||||||
|
{
|
||||||
|
AddRayInTri(triangle, rayTrans, ref rayHits);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/// <summary>
|
||||||
|
/// Helper to add ray hit in a Tri (triangle).
|
||||||
|
/// </summary>
|
||||||
|
private void AddRayInTri(Tri triangle, RayTrans rayTrans, ref List<RayHit> rayHits)
|
||||||
|
{
|
||||||
|
// Check for hit in triangle
|
||||||
|
float distance;
|
||||||
|
Vector3 posHit;
|
||||||
|
Vector3 normal;
|
||||||
|
if (HitRayInTri(triangle, rayTrans, out distance, out posHit, out normal))
|
||||||
|
{
|
||||||
|
// Project hit part back to normal coordinate system
|
||||||
|
Vector3 posPart = rayTrans.PositionPartProj * rayTrans.RotationBack - rayTrans.PositionProj;
|
||||||
|
// Hack to circumvent ghost face bug in PrimMesher by removing hits in (ghost) faces plane through shape center
|
||||||
|
if (Math.Abs(Vector3.Dot(posPart, normal) - Vector3.Dot(posHit, normal)) < rayTrans.Tolerance && !rayTrans.NeedsEnds)
|
||||||
|
return;
|
||||||
|
// Remove duplicate hits at triangle edges and intersections
|
||||||
|
for (int i = rayHits.Count - 1; i >= 0; i--)
|
||||||
|
{
|
||||||
|
if (rayHits[i].PartId == rayTrans.PartId && Math.Abs(rayHits[i].Distance - distance) < rayTrans.Tolerance2)
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Build result data set
|
||||||
|
RayHit rayHit = new RayHit();
|
||||||
|
rayHit.PartId = rayTrans.PartId;
|
||||||
|
rayHit.GroupId = rayTrans.GroupId;
|
||||||
|
rayHit.Link = rayTrans.Link;
|
||||||
|
rayHit.Position = posHit;
|
||||||
|
rayHit.Normal = normal;
|
||||||
|
rayHit.Distance = distance;
|
||||||
|
rayHits.Add(rayHit);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/// <summary>
|
||||||
|
/// Helper to find ray hit in a Tri (triangle).
|
||||||
|
/// </summary>
|
||||||
|
private bool HitRayInTri(Tri triangle, RayTrans rayTrans, out float distance, out Vector3 posHit, out Vector3 normal)
|
||||||
|
{
|
||||||
|
// Initialize
|
||||||
|
distance = 0.0f;
|
||||||
|
posHit = Vector3.Zero;
|
||||||
|
normal = Vector3.Zero;
|
||||||
|
float tol = rayTrans.Tolerance;
|
||||||
|
|
||||||
|
// Project triangle on X-Y plane
|
||||||
|
Vector3 pos1 = triangle.p1 * rayTrans.Scale * rayTrans.RotationPartProj + rayTrans.PositionPartProj;
|
||||||
|
Vector3 pos2 = triangle.p2 * rayTrans.Scale * rayTrans.RotationPartProj + rayTrans.PositionPartProj;
|
||||||
|
Vector3 pos3 = triangle.p3 * rayTrans.Scale * rayTrans.RotationPartProj + rayTrans.PositionPartProj;
|
||||||
|
|
||||||
|
// Check if ray/origo inside triangle bounding rectangle
|
||||||
|
Vector3 lower = Vector3.Min(pos1, Vector3.Min(pos2, pos3));
|
||||||
|
Vector3 upper = Vector3.Max(pos1, Vector3.Max(pos2, pos3));
|
||||||
|
if (lower.X > tol || lower.Y > tol || lower.Z > tol || upper.X < -tol || upper.Y < -tol || upper.Z < -rayTrans.RayLength - tol)
|
||||||
|
return false;
|
||||||
|
|
||||||
|
// Check if ray/origo inside every edge or reverse "outside" every edge on exit
|
||||||
|
float dist;
|
||||||
|
bool inside = true;
|
||||||
|
bool outside = true;
|
||||||
|
Vector3 vec1 = pos2 - pos1;
|
||||||
|
dist = pos1.X * vec1.Y - pos1.Y * vec1.X;
|
||||||
|
if (dist < -tol)
|
||||||
|
inside = false;
|
||||||
|
if (dist > tol)
|
||||||
|
outside = false;
|
||||||
|
Vector3 vec2 = pos3 - pos2;
|
||||||
|
dist = pos2.X * vec2.Y - pos2.Y * vec2.X;
|
||||||
|
if (dist < -tol)
|
||||||
|
inside = false;
|
||||||
|
if (dist > tol)
|
||||||
|
outside = false;
|
||||||
|
Vector3 vec3 = pos1 - pos3;
|
||||||
|
dist = pos3.X * vec3.Y - pos3.Y * vec3.X;
|
||||||
|
if (dist < -tol)
|
||||||
|
inside = false;
|
||||||
|
if (dist > tol)
|
||||||
|
outside = false;
|
||||||
|
|
||||||
|
// Skip if ray/origo outside
|
||||||
|
if (!inside && !(outside && m_detectExitsInCastRay))
|
||||||
|
return false;
|
||||||
|
|
||||||
|
// Calculate normal
|
||||||
|
Vector3 normalProj = Vector3.Cross(vec1, vec2);
|
||||||
|
float normalLength = normalProj.Length();
|
||||||
|
// Skip if degenerate triangle
|
||||||
|
if (normalLength < tol)
|
||||||
|
return false;
|
||||||
|
normalProj = normalProj / normalLength;
|
||||||
|
// Skip if ray parallell to triangle plane
|
||||||
|
if (Math.Abs(normalProj.Z) < tol)
|
||||||
|
return false;
|
||||||
|
|
||||||
|
// Calculate distance
|
||||||
|
distance = Vector3.Dot(normalProj, pos2) / normalProj.Z * -1.0f;
|
||||||
|
// Skip if outside ray
|
||||||
|
if (distance < -tol || distance > rayTrans.RayLength + tol)
|
||||||
|
return false;
|
||||||
|
|
||||||
|
// Calculate projected hit position
|
||||||
|
Vector3 posHitProj = new Vector3(0.0f, 0.0f, -distance);
|
||||||
|
// Project hit back to normal coordinate system
|
||||||
|
posHit = posHitProj * rayTrans.RotationBack - rayTrans.PositionProj;
|
||||||
|
normal = normalProj * rayTrans.RotationBack;
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
/// <summary>
|
||||||
|
/// Helper to parse selected parts of HeightMap into a Tri (triangle) List and calculate bounding box.
|
||||||
|
/// </summary>
|
||||||
|
private List<Tri> TrisFromHeightmapUnderRay(Vector3 posStart, Vector3 posEnd, out Vector3 lower, out Vector3 upper)
|
||||||
|
{
|
||||||
|
// Get bounding X-Y rectangle of terrain under ray
|
||||||
|
lower = Vector3.Min(posStart, posEnd);
|
||||||
|
upper = Vector3.Max(posStart, posEnd);
|
||||||
|
lower.X = (float)Math.Floor(lower.X);
|
||||||
|
lower.Y = (float)Math.Floor(lower.Y);
|
||||||
|
float zLower = float.MaxValue;
|
||||||
|
upper.X = (float)Math.Ceiling(upper.X);
|
||||||
|
upper.Y = (float)Math.Ceiling(upper.Y);
|
||||||
|
float zUpper = float.MinValue;
|
||||||
|
|
||||||
|
// Initialize Tri (triangle) List
|
||||||
|
List<Tri> triangles = new List<Tri>();
|
||||||
|
|
||||||
|
// Set parsing lane direction to major ray X-Y axis
|
||||||
|
Vector3 vec = posEnd - posStart;
|
||||||
|
float xAbs = Math.Abs(vec.X);
|
||||||
|
float yAbs = Math.Abs(vec.Y);
|
||||||
|
bool bigX = true;
|
||||||
|
if (yAbs > xAbs)
|
||||||
|
{
|
||||||
|
bigX = false;
|
||||||
|
vec = vec / yAbs;
|
||||||
|
}
|
||||||
|
else if (xAbs > yAbs || xAbs > 0.0f)
|
||||||
|
vec = vec / xAbs;
|
||||||
|
else
|
||||||
|
vec = new Vector3(1.0f, 1.0f, 0.0f);
|
||||||
|
|
||||||
|
// Simplify by start parsing in lower end of lane
|
||||||
|
if ((bigX && vec.X < 0.0f) || (!bigX && vec.Y < 0.0f))
|
||||||
|
{
|
||||||
|
Vector3 posTemp = posStart;
|
||||||
|
posStart = posEnd;
|
||||||
|
posEnd = posTemp;
|
||||||
|
vec = vec * -1.0f;
|
||||||
|
}
|
||||||
|
|
||||||
|
// First 1x1 rectangle under ray
|
||||||
|
float xFloorOld = 0.0f;
|
||||||
|
float yFloorOld = 0.0f;
|
||||||
|
Vector3 pos = posStart;
|
||||||
|
float xFloor = (float)Math.Floor(pos.X);
|
||||||
|
float yFloor = (float)Math.Floor(pos.Y);
|
||||||
|
AddTrisFromHeightmap(xFloor, yFloor, ref triangles, ref zLower, ref zUpper);
|
||||||
|
|
||||||
|
// Parse every remaining 1x1 rectangle under ray
|
||||||
|
while (pos != posEnd)
|
||||||
|
{
|
||||||
|
// Next 1x1 rectangle under ray
|
||||||
|
xFloorOld = xFloor;
|
||||||
|
yFloorOld = yFloor;
|
||||||
|
pos = pos + vec;
|
||||||
|
|
||||||
|
// Clip position to 1x1 rectangle border
|
||||||
|
xFloor = (float)Math.Floor(pos.X);
|
||||||
|
yFloor = (float)Math.Floor(pos.Y);
|
||||||
|
if (bigX && pos.X > xFloor)
|
||||||
|
{
|
||||||
|
pos.Y -= vec.Y * (pos.X - xFloor);
|
||||||
|
pos.X = xFloor;
|
||||||
|
}
|
||||||
|
else if (!bigX && pos.Y > yFloor)
|
||||||
|
{
|
||||||
|
pos.X -= vec.X * (pos.Y - yFloor);
|
||||||
|
pos.Y = yFloor;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Last 1x1 rectangle under ray
|
||||||
|
if ((bigX && pos.X >= posEnd.X) || (!bigX && pos.Y >= posEnd.Y))
|
||||||
|
{
|
||||||
|
pos = posEnd;
|
||||||
|
xFloor = (float)Math.Floor(pos.X);
|
||||||
|
yFloor = (float)Math.Floor(pos.Y);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Add new 1x1 rectangle in lane
|
||||||
|
if ((bigX && xFloor != xFloorOld) || (!bigX && yFloor != yFloorOld))
|
||||||
|
AddTrisFromHeightmap(xFloor, yFloor, ref triangles, ref zLower, ref zUpper);
|
||||||
|
// Add last 1x1 rectangle in old lane at lane shift
|
||||||
|
if (bigX && yFloor != yFloorOld)
|
||||||
|
AddTrisFromHeightmap(xFloor, yFloorOld, ref triangles, ref zLower, ref zUpper);
|
||||||
|
if (!bigX && xFloor != xFloorOld)
|
||||||
|
AddTrisFromHeightmap(xFloorOld, yFloor, ref triangles, ref zLower, ref zUpper);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Finalize bounding box Z
|
||||||
|
lower.Z = zLower;
|
||||||
|
upper.Z = zUpper;
|
||||||
|
|
||||||
|
// Done and returning Tri (triangle)List
|
||||||
|
return triangles;
|
||||||
|
}
|
||||||
|
|
||||||
|
/// <summary>
|
||||||
|
/// Helper to add HeightMap squares into Tri (triangle) List and adjust bounding box.
|
||||||
|
/// </summary>
|
||||||
|
private void AddTrisFromHeightmap(float xPos, float yPos, ref List<Tri> triangles, ref float zLower, ref float zUpper)
|
||||||
|
{
|
||||||
|
int xInt = (int)xPos;
|
||||||
|
int yInt = (int)yPos;
|
||||||
|
|
||||||
|
// Corner 1 of 1x1 rectangle
|
||||||
|
int x = Util.Clamp<int>(xInt+1, 0, World.Heightmap.Width - 1);
|
||||||
|
int y = Util.Clamp<int>(yInt+1, 0, World.Heightmap.Height - 1);
|
||||||
|
Vector3 pos1 = new Vector3(x, y, (float)World.Heightmap[x, y]);
|
||||||
|
// Adjust bounding box
|
||||||
|
zLower = Math.Min(zLower, pos1.Z);
|
||||||
|
zUpper = Math.Max(zUpper, pos1.Z);
|
||||||
|
|
||||||
|
// Corner 2 of 1x1 rectangle
|
||||||
|
x = Util.Clamp<int>(xInt, 0, World.Heightmap.Width - 1);
|
||||||
|
y = Util.Clamp<int>(yInt+1, 0, World.Heightmap.Height - 1);
|
||||||
|
Vector3 pos2 = new Vector3(x, y, (float)World.Heightmap[x, y]);
|
||||||
|
// Adjust bounding box
|
||||||
|
zLower = Math.Min(zLower, pos1.Z);
|
||||||
|
zUpper = Math.Max(zUpper, pos1.Z);
|
||||||
|
|
||||||
|
// Corner 3 of 1x1 rectangle
|
||||||
|
x = Util.Clamp<int>(xInt, 0, World.Heightmap.Width - 1);
|
||||||
|
y = Util.Clamp<int>(yInt, 0, World.Heightmap.Height - 1);
|
||||||
|
Vector3 pos3 = new Vector3(x, y, (float)World.Heightmap[x, y]);
|
||||||
|
// Adjust bounding box
|
||||||
|
zLower = Math.Min(zLower, pos1.Z);
|
||||||
|
zUpper = Math.Max(zUpper, pos1.Z);
|
||||||
|
|
||||||
|
// Corner 4 of 1x1 rectangle
|
||||||
|
x = Util.Clamp<int>(xInt+1, 0, World.Heightmap.Width - 1);
|
||||||
|
y = Util.Clamp<int>(yInt, 0, World.Heightmap.Height - 1);
|
||||||
|
Vector3 pos4 = new Vector3(x, y, (float)World.Heightmap[x, y]);
|
||||||
|
// Adjust bounding box
|
||||||
|
zLower = Math.Min(zLower, pos1.Z);
|
||||||
|
zUpper = Math.Max(zUpper, pos1.Z);
|
||||||
|
|
||||||
|
// Add triangle 1
|
||||||
|
Tri triangle1 = new Tri();
|
||||||
|
triangle1.p1 = pos1;
|
||||||
|
triangle1.p2 = pos2;
|
||||||
|
triangle1.p3 = pos3;
|
||||||
|
triangles.Add(triangle1);
|
||||||
|
|
||||||
|
// Add triangle 2
|
||||||
|
Tri triangle2 = new Tri();
|
||||||
|
triangle2.p1 = pos3;
|
||||||
|
triangle2.p2 = pos4;
|
||||||
|
triangle2.p3 = pos1;
|
||||||
|
triangles.Add(triangle2);
|
||||||
|
}
|
||||||
|
|
||||||
|
/// <summary>
|
||||||
|
/// Helper to check if a ray intersects bounding shapes.
|
||||||
|
/// </summary>
|
||||||
|
private bool InBoundingShapes(Vector3 ray, float rayLength, Vector3 scale, Vector3 posPartRel, Vector3 posPartProj, Quaternion rotProj)
|
||||||
|
{
|
||||||
|
float tol = m_floatToleranceInCastRay;
|
||||||
|
|
||||||
|
// Check if ray intersects projected bounding box
|
||||||
|
Vector3 lowerBox = new Vector3(float.MaxValue, float.MaxValue, float.MaxValue);
|
||||||
|
Vector3 upperBox = new Vector3(float.MinValue, float.MinValue, float.MinValue);
|
||||||
|
int dummy = 0;
|
||||||
|
AddBoundingBoxOfSimpleBox(scale * -0.5f, scale * 0.5f, posPartProj, rotProj, true, ref lowerBox, ref upperBox, ref dummy);
|
||||||
|
if (lowerBox.X > tol || lowerBox.Y > tol || lowerBox.Z > tol || upperBox.X < -tol || upperBox.Y < -tol || upperBox.Z < -rayLength - tol)
|
||||||
|
return false;
|
||||||
|
|
||||||
|
// Passed bounding shape filters, so return true
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
/// <summary>
|
||||||
|
/// Helper to get link number for a UUID.
|
||||||
|
/// </summary>
|
||||||
|
private int UUID2LinkNumber(SceneObjectPart part, UUID id)
|
||||||
|
{
|
||||||
|
SceneObjectGroup group = part.ParentGroup;
|
||||||
|
if (group != null)
|
||||||
|
{
|
||||||
|
// Parse every link for UUID
|
||||||
|
int linkCount = group.PrimCount + group.GetSittingAvatarsCount();
|
||||||
|
for (int link = linkCount; link > 0; link--)
|
||||||
|
{
|
||||||
|
ISceneEntity entity = GetLinkEntity(part, link);
|
||||||
|
// Return link number if UUID match
|
||||||
|
if (entity != null && entity.UUID == id)
|
||||||
|
return link;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
// Return link number 0 if no links or UUID matches
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
public LSL_Integer llManageEstateAccess(int action, string avatar)
|
public LSL_Integer llManageEstateAccess(int action, string avatar)
|
||||||
{
|
{
|
||||||
m_host.AddScriptLPS(1);
|
m_host.AddScriptLPS(1);
|
||||||
|
|
|
||||||
|
|
@ -1477,6 +1477,44 @@
|
||||||
; Avatar bounding box, upper Z value, coefficient to multiply with avatar height, when sitting
|
; Avatar bounding box, upper Z value, coefficient to multiply with avatar height, when sitting
|
||||||
UpperAvatarBoundingBoxSittingZcoeff = 0.25
|
UpperAvatarBoundingBoxSittingZcoeff = 0.25
|
||||||
|
|
||||||
|
; Safety coefficient for max bounding box from prim size box X coordinate
|
||||||
|
; Worst case is twisted and sheared box, 1+sqrt(2)
|
||||||
|
PrimBoundingBoxSafetyCoefficientX = 2.414214
|
||||||
|
|
||||||
|
; Safety coefficient for max bounding box from prim size box Y coordinate
|
||||||
|
; Worst case is twisted and sheared box, 1+sqrt(2)
|
||||||
|
PrimBoundingBoxSafetyCoefficientY = 2.414214
|
||||||
|
|
||||||
|
; Safety coefficient for max bounding box from prim size box Z coordinate
|
||||||
|
; Worst case is twisted tube, 0.5+sqrt(1.25)
|
||||||
|
PrimBoundingBoxSafetyCoefficientZ = 1.618034
|
||||||
|
|
||||||
|
; Accepted calculation precision error in calculations in llCastRay
|
||||||
|
FloatToleranceInLlCastRay = 0.000001
|
||||||
|
|
||||||
|
; Accepted distance difference between duplicate hits in llCastRay
|
||||||
|
FloatTolerance2InLlCastRay = 0.0001
|
||||||
|
|
||||||
|
; Maximum number of returned hits from llCastRay
|
||||||
|
MaxHitsInLlCastRay = 16
|
||||||
|
|
||||||
|
; Maximum number of returned hits per prim from llCastRay
|
||||||
|
MaxHitsPerPrimInLlCastRay = 16
|
||||||
|
|
||||||
|
; Maximum number of returned hits per object from llCastRay
|
||||||
|
MaxHitsPerObjectInLlCastRay = 16
|
||||||
|
|
||||||
|
; Report ray intersections with surfaces on exits from a prim as hits in llCastRay if true
|
||||||
|
DetectExitHitsInLlCastRay = false
|
||||||
|
|
||||||
|
; Filter on parts instead of groups in llCastRay if true
|
||||||
|
FilterPartsInLlCastRay = false
|
||||||
|
|
||||||
|
; Detect attachments in llCastRay if true
|
||||||
|
DoAttachmentsInLlCastRay = false
|
||||||
|
|
||||||
|
; Use legacy version 1 of llCastRay if true
|
||||||
|
UseLlCastRayV1 = true
|
||||||
|
|
||||||
[DataSnapshot]
|
[DataSnapshot]
|
||||||
; The following set of configs pertains to search.
|
; The following set of configs pertains to search.
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue