internal static void UpdateModelMeshDescriptions(ChiselModel model)
{
if (!ChiselModelGeneratedObjects.IsValid(model.generated))
{
if (model.generated != null)
{
model.generated.Destroy();
}
model.generated = ChiselModelGeneratedObjects.Create(model);
}
var tree = model.Node;
if (!tree.Valid)
{
return;
}
var meshTypes = ChiselMeshQueryManager.GetMeshQuery(model);
var meshDescriptions = tree.GetMeshDescriptions(meshTypes, model.VertexChannelMask);
// Check if the tree creates *any* meshes
if (meshDescriptions == null || meshDescriptions.Length == 0)
{
//componentGenerator.RemoveAllGeneratedComponents(model);
PostUpdateModel?.Invoke(model);
return;
}
// Sort all meshDescriptions so that meshes that can be merged are next to each other
Array.Sort(meshDescriptions, kMeshDescriptionSorterDelegate);
model.generated.Update(model, meshDescriptions);
}
public static bool GetNodesInFrustum(Frustum frustum, int visibleLayers, ref HashSet <CSGTreeNode> rectFoundNodes)
{
var planes = new Plane[6];
Vector4 srcVector;
var allTrees = CSGManager.AllTrees;
for (var t = 0; t < allTrees.Length; t++)
{
var tree = allTrees[t];
var model = ChiselNodeHierarchyManager.FindChiselNodeByTreeNode(tree) as ChiselModel;
if (!model || !model.isActiveAndEnabled)
{
continue;
}
if (((1 << model.gameObject.layer) & visibleLayers) == 0)
{
continue;
}
var query = ChiselMeshQueryManager.GetMeshQuery(model);
// We only accept RayCasts into this model if it's visible
if (!ChiselMeshQueryManager.IsVisible(query))
{
continue;
}
// Transform the frustum into the space of the tree
var transform = model.transform;
var worldToLocalMatrixInversed = transform.localToWorldMatrix; // localToWorldMatrix == worldToLocalMatrix.inverse
var worldToLocalMatrixInversedTransposed = worldToLocalMatrixInversed.transpose;
for (int p = 0; p < 6; p++)
{
var srcPlane = frustum.Planes[p];
srcVector.x = srcPlane.normal.x;
srcVector.y = srcPlane.normal.y;
srcVector.z = srcPlane.normal.z;
srcVector.w = srcPlane.distance;
srcVector = worldToLocalMatrixInversedTransposed * srcVector;
planes[p].normal = srcVector;
planes[p].distance = srcVector.w;
}
var treeNodesInFrustum = tree.GetNodesInFrustum(planes);
if (treeNodesInFrustum == null)
{
continue;
}
for (int n = 0; n < treeNodesInFrustum.Length; n++)
{
var treeNode = treeNodesInFrustum[n];
rectFoundNodes.Add(treeNode);
}
}
return(rectFoundNodes.Count > 0);
}
static List <ChiselGeneratedModelMesh> __allocateGeneratedMeshesTable = new List <ChiselGeneratedModelMesh>(); // static to avoid allocations
internal static void UpdateModelMeshDescriptions(ChiselModel model)
{
var tree = model.Node;
if (!tree.Valid)
{
return;
}
var meshTypes = ChiselMeshQueryManager.GetMeshQuery(model);
var meshDescriptions = tree.GetMeshDescriptions(meshTypes, model.VertexChannelMask);
// Make sure we remove all old generated meshes
sharedUnityMeshes.DecreaseMeshRefCount(model);
// Check if the tree creates *any* meshes
if (meshDescriptions == null)
{
model.generatedMeshes = __emptyGeneratedMeshesTable;
componentGenerator.RemoveAllGeneratedComponents(model);
if (PostUpdateModel != null)
{
PostUpdateModel(model);
}
return;
}
__allocateGeneratedMeshesTable.Clear();
for (int d = 0; d < meshDescriptions.Length; d++)
{
var meshDescription = meshDescriptions[d];
// Make sure the meshDescription actually holds a mesh
if (meshDescription.vertexCount == 0 ||
meshDescription.indexCount == 0)
{
continue;
}
// Make sure the mesh is valid
if (meshDescription.vertexCount >= MaxVertexCount)
{
Debug.LogError("Mesh has too many vertices (" + meshDescription.vertexCount + " > " + MaxVertexCount + ")");
continue;
}
// Add the generated mesh to the list
__allocateGeneratedMeshesTable.Add(new ChiselGeneratedModelMesh {
meshDescription = meshDescription, meshKey = new GeneratedMeshKey(meshDescription)
});
}
// TODO: compare with existing generated meshes, only rebuild stuff for things that have actually changed
model.generatedMeshes = __allocateGeneratedMeshesTable.ToArray();
}
/*
* public static bool FindFirstWorldIntersection(ChiselModel model, Vector3 worldRayStart, Vector3 worldRayEnd, int visibleLayers, out ChiselIntersection foundIntersection)
* {
* return FindFirstWorldIntersection(model, worldRayStart, worldRayEnd, visibleLayers, null, null, out foundIntersection);
* }
*/
public static bool FindFirstWorldIntersection(ChiselModel model, Vector3 worldRayStart, Vector3 worldRayEnd, int visibleLayers, GameObject[] ignore, GameObject[] filter, out ChiselIntersection foundIntersection)
{
foundIntersection = ChiselIntersection.None;
if (!ChiselGeneratedComponentManager.IsValidModelToBeSelected(model))
{
return(false);
}
s_FilterNodes.Clear();
s_IgnoreNodes.Clear();
s_IgnoreInstanceIDs.Clear();
s_FilterInstanceIDs.Clear();
if (ignore != null)
{
foreach (var go in ignore)
{
var node = go.GetComponent <ChiselNode>();
if (node)
{
ChiselNodeHierarchyManager.GetChildrenOfHierarchyItem(s_IgnoreNodes, node.hierarchyItem);
s_IgnoreInstanceIDs.Add(node.GetInstanceID());
}
}
}
if (filter != null)
{
foreach (var go in filter)
{
var node = go.GetComponent <ChiselNode>();
if (node)
{
ChiselNodeHierarchyManager.GetChildrenOfHierarchyItem(s_FilterNodes, node.hierarchyItem);
s_FilterInstanceIDs.Add(node.GetInstanceID());
if (node.hierarchyItem != null &&
node.hierarchyItem.Model)
{
s_FilterInstanceIDs.Add(node.hierarchyItem.Model.GetInstanceID());
}
}
}
}
var tree = model.Node;
if (s_IgnoreInstanceIDs.Contains(model.GetInstanceID()) ||
(s_FilterInstanceIDs.Count > 0 && !s_FilterInstanceIDs.Contains(model.GetInstanceID())))
{
return(false);
}
if (((1 << model.gameObject.layer) & visibleLayers) == 0)
{
return(false);
}
var query = ChiselMeshQueryManager.GetMeshQuery(model);
var visibleQueries = ChiselMeshQueryManager.GetVisibleQueries(query);
// We only accept RayCasts into this model if it's visible
if (visibleQueries == null ||
visibleQueries.Length == 0)
{
return(false);
}
Vector3 treeRayStart;
Vector3 treeRayEnd;
var transform = model.transform;
if (transform)
{
var worldToLocalMatrix = transform.worldToLocalMatrix;
treeRayStart = worldToLocalMatrix.MultiplyPoint(worldRayStart);
treeRayEnd = worldToLocalMatrix.MultiplyPoint(worldRayEnd);
}
else
{
treeRayStart = worldRayStart;
treeRayEnd = worldRayEnd;
}
var treeIntersections = CSGQueryManager.RayCastMulti(ChiselMeshQueryManager.GetMeshQuery(model), tree, treeRayStart, treeRayEnd, s_IgnoreNodes, s_FilterNodes, ignoreBackfaced: true, ignoreCulled: true);
if (treeIntersections == null)
{
return(false);
}
bool found = false;
for (var i = 0; i < treeIntersections.Length; i++)
{
var intersection = treeIntersections[i];
var brush = intersection.brush;
var instanceID = brush.UserID;
if ((s_FilterInstanceIDs.Count > 0 && !s_FilterInstanceIDs.Contains(instanceID)) ||
s_IgnoreInstanceIDs.Contains(instanceID))
{
continue;
}
if (intersection.surfaceIntersection.distance < foundIntersection.brushIntersection.surfaceIntersection.distance)
{
foundIntersection = Convert(intersection);
found = true;
}
}
return(found);
}
public static bool FindFirstWorldIntersection(List <ChiselIntersection> foundIntersections, Vector3 worldRayStart, Vector3 worldRayEnd, int visibleLayers = ~0, bool ignoreBackfaced = false, bool ignoreCulled = false, GameObject[] ignore = null, GameObject[] filter = null)
{
bool found = false;
s_IgnoreInstanceIDs.Clear();
s_FilterInstanceIDs.Clear();
s_IgnoreNodes.Clear();
s_FilterNodes.Clear();
if (ignore != null)
{
foreach (var go in ignore)
{
var node = go.GetComponent <ChiselNode>();
if (node)
{
ChiselNodeHierarchyManager.GetChildrenOfHierarchyItem(s_IgnoreNodes, node.hierarchyItem);
s_IgnoreInstanceIDs.Add(node.GetInstanceID());
}
}
}
if (filter != null)
{
foreach (var go in filter)
{
var node = go.GetComponent <ChiselNode>();
if (node)
{
ChiselNodeHierarchyManager.GetChildrenOfHierarchyItem(s_FilterNodes, node.hierarchyItem);
s_FilterInstanceIDs.Add(node.GetInstanceID());
if (node.hierarchyItem != null &&
node.hierarchyItem.Model)
{
s_FilterInstanceIDs.Add(node.hierarchyItem.Model.GetInstanceID());
}
}
}
}
using (var allTrees = new NativeList <CSGTree>(Allocator.Temp))
{
CompactHierarchyManager.GetAllTrees(allTrees);
for (var t = 0; t < allTrees.Length; t++)
{
var tree = allTrees[t];
var model = ChiselNodeHierarchyManager.FindChiselNodeByTreeNode(tree) as ChiselModel;
if (!ChiselModelManager.IsSelectable(model))
{
continue;
}
if (((1 << model.gameObject.layer) & visibleLayers) == 0)
{
continue;
}
var modelInstanceID = model.GetInstanceID();
if (s_IgnoreInstanceIDs.Contains(modelInstanceID) ||
(s_FilterInstanceIDs.Count > 0 && !s_FilterInstanceIDs.Contains(modelInstanceID)))
{
continue;
}
var query = ChiselMeshQueryManager.GetMeshQuery(model);
var visibleQueries = ChiselMeshQueryManager.GetVisibleQueries(query);
// We only accept RayCasts into this model if it's visible
if (visibleQueries == null ||
visibleQueries.Length == 0)
{
return(false);
}
Vector3 treeRayStart;
Vector3 treeRayEnd;
var transform = model.transform;
if (transform)
{
var worldToLocalMatrix = transform.worldToLocalMatrix;
treeRayStart = worldToLocalMatrix.MultiplyPoint(worldRayStart);
treeRayEnd = worldToLocalMatrix.MultiplyPoint(worldRayEnd);
}
else
{
treeRayStart = worldRayStart;
treeRayEnd = worldRayEnd;
}
var treeIntersections = CSGQueryManager.RayCastMulti(ChiselMeshQueryManager.GetMeshQuery(model), tree, treeRayStart, treeRayEnd, s_IgnoreNodes, s_FilterNodes, ignoreBackfaced, ignoreCulled);
if (treeIntersections == null)
{
continue;
}
for (var i = 0; i < treeIntersections.Length; i++)
{
var intersection = treeIntersections[i];
var brush = intersection.brush;
var instanceID = brush.UserID;
if ((s_FilterInstanceIDs.Count > 0 && !s_FilterInstanceIDs.Contains(instanceID)) ||
s_IgnoreInstanceIDs.Contains(instanceID))
{
continue;
}
foundIntersections.Add(Convert(intersection));
found = true;
}
}
return(found);
}
}
public static bool FindFirstWorldIntersection(ChiselModel model, Vector3 worldRayStart, Vector3 worldRayEnd, int filterLayerParameter0, int visibleLayers, GameObject[] ignore, GameObject[] filter, out ChiselIntersection foundIntersection)
{
foundIntersection = ChiselIntersection.None;
if (!ChiselGeneratedComponentManager.IsValidModelToBeSelected(model))
{
return(false);
}
CSGTreeNode[] ignoreBrushes = null;
HashSet <int> ignoreInstanceIDs = null;
HashSet <int> filterInstanceIDs = null;
if (ignore != null)
{
//var ignoreBrushList = new HashSet<CSGTreeBrush>();
ignoreInstanceIDs = new HashSet <int>();
foreach (var go in ignore)
{
var node = go.GetComponent <ChiselNode>();
if (node)
{
//node.GetAllTreeBrushes(ignoreBrushList);
ignoreInstanceIDs.Add(node.GetInstanceID());
}
}
}
if (filter != null)
{
filterInstanceIDs = new HashSet <int>();
foreach (var go in filter)
{
var node = go.GetComponent <ChiselNode>();
if (node)
{
filterInstanceIDs.Add(node.GetInstanceID());
}
}
}
var tree = model.Node;
if ((ignoreInstanceIDs != null && ignoreInstanceIDs.Contains(model.GetInstanceID())))
{
return(false);
}
if ((filterInstanceIDs != null && !filterInstanceIDs.Contains(model.GetInstanceID())))
{
return(false);
}
if (((1 << model.gameObject.layer) & visibleLayers) == 0)
{
return(false);
}
var query = ChiselMeshQueryManager.GetMeshQuery(model);
var visibleQueries = ChiselMeshQueryManager.GetVisibleQueries(query);
// We only accept RayCasts into this model if it's visible
if (visibleQueries == null ||
visibleQueries.Length == 0)
{
return(false);
}
Vector3 treeRayStart;
Vector3 treeRayEnd;
var transform = model.transform;
if (transform)
{
var worldToLocalMatrix = transform.worldToLocalMatrix;
treeRayStart = worldToLocalMatrix.MultiplyPoint(worldRayStart);
treeRayEnd = worldToLocalMatrix.MultiplyPoint(worldRayEnd);
}
else
{
treeRayStart = worldRayStart;
treeRayEnd = worldRayEnd;
}
var treeIntersections = CSGManager.RayCastMulti(ChiselMeshQueryManager.GetMeshQuery(model), tree, treeRayStart, treeRayEnd, ignoreBrushes);
if (treeIntersections == null)
{
return(false);
}
bool found = false;
for (var i = 0; i < treeIntersections.Length; i++)
{
var intersection = treeIntersections[i];
var brush = intersection.brush;
var instanceID = brush.UserID;
if ((filterInstanceIDs != null && !filterInstanceIDs.Contains(instanceID)))
{
continue;
}
if ((ignoreInstanceIDs != null && ignoreInstanceIDs.Contains(instanceID)))
{
continue;
}
if (intersection.surfaceIntersection.distance < foundIntersection.brushIntersection.surfaceIntersection.distance)
{
foundIntersection = Convert(intersection);
found = true;
}
}
return(found);
}
public static bool FindMultiWorldIntersection(Vector3 worldRayStart, Vector3 worldRayEnd, int filterLayerParameter0, int visibleLayers, GameObject[] ignore, GameObject[] filter, out ChiselIntersection[] intersections)
{
intersections = null;
__foundIntersections.Clear();
HashSet <int> ignoreInstanceIDs = null;
HashSet <int> filterInstanceIDs = null;
if (ignore != null)
{
ignoreInstanceIDs = new HashSet <int>();
foreach (var go in ignore)
{
var node = go.GetComponent <ChiselNode>();
if (node)
{
ignoreInstanceIDs.Add(node.GetInstanceID());
}
}
}
if (filter != null)
{
filterInstanceIDs = new HashSet <int>();
foreach (var go in filter)
{
var node = go.GetComponent <ChiselNode>();
if (node)
{
filterInstanceIDs.Add(node.GetInstanceID());
}
}
}
var allTrees = CSGManager.AllTrees;
for (var t = 0; t < allTrees.Length; t++)
{
var tree = allTrees[t];
var model = ChiselNodeHierarchyManager.FindChiselNodeByTreeNode(tree) as ChiselModel;
if (!ChiselModelManager.IsVisible(model))
{
continue;
}
if ((ignoreInstanceIDs != null && ignoreInstanceIDs.Contains(model.GetInstanceID())))
{
return(false);
}
if ((filterInstanceIDs != null && !filterInstanceIDs.Contains(model.GetInstanceID())))
{
return(false);
}
if (((1 << model.gameObject.layer) & visibleLayers) == 0)
{
continue;
}
var query = ChiselMeshQueryManager.GetMeshQuery(model);
var visibleQueries = ChiselMeshQueryManager.GetVisibleQueries(query);
// We only accept RayCasts into this model if it's visible
if (visibleQueries == null ||
visibleQueries.Length == 0)
{
return(false);
}
Vector3 treeRayStart;
Vector3 treeRayEnd;
var transform = model.transform;
if (transform)
{
var worldToLocalMatrix = transform.worldToLocalMatrix;
treeRayStart = worldToLocalMatrix.MultiplyPoint(worldRayStart);
treeRayEnd = worldToLocalMatrix.MultiplyPoint(worldRayEnd);
}
else
{
treeRayStart = worldRayStart;
treeRayEnd = worldRayEnd;
}
var treeIntersections = CSGManager.RayCastMulti(ChiselMeshQueryManager.GetMeshQuery(model), tree, treeRayStart, treeRayEnd);
if (treeIntersections == null)
{
continue;
}
for (var i = 0; i < treeIntersections.Length; i++)
{
var intersection = treeIntersections[i];
var brush = intersection.brush;
var instanceID = brush.UserID;
if ((filterInstanceIDs != null && !filterInstanceIDs.Contains(instanceID)))
{
continue;
}
if ((ignoreInstanceIDs != null && ignoreInstanceIDs.Contains(instanceID)))
{
continue;
}
__foundIntersections[brush] = Convert(intersection);
}
}
if (__foundIntersections.Count == 0)
{
return(false);
}
var sortedIntersections = __foundIntersections.Values.ToArray();
Array.Sort(sortedIntersections, (x, y) => (x.brushIntersection.surfaceIntersection.distance < y.brushIntersection.surfaceIntersection.distance) ? -1 : 0);
__foundIntersections.Clear();
intersections = sortedIntersections;
return(true);
}
public static bool FindFirstWorldIntersection(ChiselModel model, Vector3 worldRayStart, Vector3 worldRayEnd, int filterLayerParameter0, int visibleLayers, GameObject[] ignore, GameObject[] filter, out CSGTreeBrushIntersection foundIntersection)
{
foundIntersection = new CSGTreeBrushIntersection();
foundIntersection.surfaceIntersection.distance = float.PositiveInfinity;
if (!model || !model.isActiveAndEnabled)
{
return(false);
}
CSGTreeNode[] ignoreBrushes = null;
HashSet <int> ignoreInstanceIDs = null;
HashSet <int> filterInstanceIDs = null;
if (ignore != null)
{
//var ignoreBrushList = new HashSet<CSGTreeBrush>();
ignoreInstanceIDs = new HashSet <int>();
foreach (var go in ignore)
{
var node = go.GetComponent <ChiselNode>();
if (node)
{
//node.GetAllTreeBrushes(ignoreBrushList);
ignoreInstanceIDs.Add(node.GetInstanceID());
}
}/*
* if (ignoreBrushList.Count > 0)
* {
* // TODO: fix this, ignorebrushes doesn't remove the brush completely, but that's not necessarily correct
* // for example: another brush that is not ignored, subtracts from a brush that's ignored (so its insides should be selectable)
* ignoreBrushes = new CSGTreeNode[ignoreBrushList.Count];
* int index = 0;
* foreach(var brush in ignoreBrushList)
* {
* ignoreBrushes[index] = brush;
* index++;
* }
* }*/
}
if (filter != null)
{
filterInstanceIDs = new HashSet <int>();
foreach (var go in filter)
{
var node = go.GetComponent <ChiselNode>();
if (node)
{
filterInstanceIDs.Add(node.GetInstanceID());
}
}
}
var tree = model.Node;
if ((ignoreInstanceIDs != null && ignoreInstanceIDs.Contains(model.GetInstanceID())))
{
return(false);
}
if ((filterInstanceIDs != null && !filterInstanceIDs.Contains(model.GetInstanceID())))
{
return(false);
}
if (((1 << model.gameObject.layer) & visibleLayers) == 0)
{
return(false);
}
var query = ChiselMeshQueryManager.GetMeshQuery(model);
// We only accept RayCasts into this model if it's visible
if (!ChiselMeshQueryManager.IsVisible(query))
{
return(false);
}
Vector3 treeRayStart;
Vector3 treeRayEnd;
var transform = model.transform;
if (transform)
{
var worldToLocalMatrix = transform.worldToLocalMatrix;
treeRayStart = worldToLocalMatrix.MultiplyPoint(worldRayStart);
treeRayEnd = worldToLocalMatrix.MultiplyPoint(worldRayEnd);
}
else
{
treeRayStart = worldRayStart;
treeRayEnd = worldRayEnd;
}
var treeIntersections = tree.RayCastMulti(ChiselMeshQueryManager.GetMeshQuery(model), treeRayStart, treeRayEnd, model.transform.localToWorldMatrix, filterLayerParameter0, ignoreBrushes);
if (treeIntersections == null)
{
return(false);
}
bool found = false;
for (var i = 0; i < treeIntersections.Length; i++)
{
var intersection = treeIntersections[i];
var brush = intersection.brush;
var instanceID = brush.UserID;
if ((filterInstanceIDs != null && !filterInstanceIDs.Contains(instanceID)))
{
continue;
}
if ((ignoreInstanceIDs != null && ignoreInstanceIDs.Contains(instanceID)))
{
continue;
}
if (intersection.surfaceIntersection.distance < foundIntersection.surfaceIntersection.distance)
{
foundIntersection = intersection;
found = true;
}
}
return(found);
}
public static bool FindFirstWorldIntersection(Vector3 worldRayStart, Vector3 worldRayEnd, int filterLayerParameter0, int visibleLayers, GameObject[] ignore, GameObject[] filter, out CSGTreeBrushIntersection foundIntersection)
{
bool found = false;
foundIntersection = new CSGTreeBrushIntersection();
foundIntersection.surfaceIntersection.distance = float.PositiveInfinity;
HashSet <int> ignoreInstanceIDs = null;
HashSet <int> filterInstanceIDs = null;
if (ignore != null)
{
ignoreInstanceIDs = new HashSet <int>();
foreach (var go in ignore)
{
var node = go.GetComponent <ChiselNode>();
if (node)
{
ignoreInstanceIDs.Add(node.GetInstanceID());
}
}
}
if (filter != null)
{
filterInstanceIDs = new HashSet <int>();
foreach (var go in filter)
{
var node = go.GetComponent <ChiselNode>();
if (node)
{
filterInstanceIDs.Add(node.GetInstanceID());
}
}
}
var allTrees = CSGManager.AllTrees;
for (var t = 0; t < allTrees.Length; t++)
{
var tree = allTrees[t];
var model = ChiselNodeHierarchyManager.FindChiselNodeByTreeNode(tree) as ChiselModel;
if (!model || !model.isActiveAndEnabled)
{
continue;
}
if ((ignoreInstanceIDs != null && ignoreInstanceIDs.Contains(model.GetInstanceID())))
{
return(false);
}
if ((filterInstanceIDs != null && !filterInstanceIDs.Contains(model.GetInstanceID())))
{
return(false);
}
if (((1 << model.gameObject.layer) & visibleLayers) == 0)
{
continue;
}
var query = ChiselMeshQueryManager.GetMeshQuery(model);
// We only accept RayCasts into this model if it's visible
if (!ChiselMeshQueryManager.IsVisible(query))
{
continue;
}
Vector3 treeRayStart;
Vector3 treeRayEnd;
var transform = model.transform;
if (transform)
{
var worldToLocalMatrix = transform.worldToLocalMatrix;
treeRayStart = worldToLocalMatrix.MultiplyPoint(worldRayStart);
treeRayEnd = worldToLocalMatrix.MultiplyPoint(worldRayEnd);
}
else
{
treeRayStart = worldRayStart;
treeRayEnd = worldRayEnd;
}
var treeIntersections = tree.RayCastMulti(ChiselMeshQueryManager.GetMeshQuery(model), treeRayStart, treeRayEnd, model.transform.localToWorldMatrix, filterLayerParameter0);
if (treeIntersections == null)
{
continue;
}
for (var i = 0; i < treeIntersections.Length; i++)
{
var intersection = treeIntersections[i];
var brush = intersection.brush;
var instanceID = brush.UserID;
if ((filterInstanceIDs != null && !filterInstanceIDs.Contains(instanceID)))
{
continue;
}
if ((ignoreInstanceIDs != null && ignoreInstanceIDs.Contains(instanceID)))
{
continue;
}
if (intersection.surfaceIntersection.distance < foundIntersection.surfaceIntersection.distance)
{
foundIntersection = intersection;
found = true;
}
}
}
return(found);
}