void DrawSelectionToolUI()
{
GUILayout.Label(selectedCount + " particle(s) selected");
GUILayout.BeginHorizontal();
if (GUILayout.Button("Invert", GUILayout.Width(88)))
{
for (int i = 0; i < selectionStatus.Length; i++)
{
if (actor.active[i])
{
selectionStatus[i] = !selectionStatus[i];
}
}
SelectionChanged();
}
GUI.enabled = selectedCount > 0;
if (GUILayout.Button("Clear", GUILayout.Width(88)))
{
for (int i = 0; i < selectionStatus.Length; i++)
{
selectionStatus[i] = false;
}
SelectionChanged();
}
GUI.enabled = true;
GUILayout.EndHorizontal();
GUILayout.BeginHorizontal();
if (GUILayout.Button("Select fixed", GUILayout.Width(88)))
{
for (int i = 0; i < actor.invMasses.Length; i++)
{
if (actor.active[i] && actor.invMasses[i] == 0)
{
selectionStatus[i] = true;
}
}
SelectionChanged();
}
GUI.enabled = selectedCount > 0;
if (GUILayout.Button("Unselect fixed", GUILayout.Width(88)))
{
for (int i = 0; i < actor.invMasses.Length; i++)
{
if (actor.active[i] && actor.invMasses[i] == 0)
{
selectionStatus[i] = false;
}
}
SelectionChanged();
}
GUI.enabled = true;
GUILayout.EndHorizontal();
GUI.enabled = selectedCount > 0;
GUILayout.BeginHorizontal();
if (GUILayout.Button(new GUIContent("Fix", EditorGUIUtility.Load("PinIcon.psd") as Texture2D), GUILayout.MaxHeight(18), GUILayout.Width(88)))
{
Undo.RecordObject(actor, "Fix particles");
for (int i = 0; i < selectionStatus.Length; i++)
{
if (selectionStatus[i])
{
if (actor.invMasses[i] != 0)
{
SetPropertyValue(ParticleProperty.MASS, i, Mathf.Infinity);
newProperty = GetPropertyValue(ParticleProperty.MASS, i);
actor.velocities[i] = Vector3.zero;
}
}
}
actor.PushDataToSolver(new ObiSolverData(ObiSolverData.ParticleData.INV_MASSES | ObiSolverData.ParticleData.VELOCITIES));
EditorUtility.SetDirty(actor);
}
if (GUILayout.Button(new GUIContent("Unfix", EditorGUIUtility.Load("UnpinIcon.psd") as Texture2D), GUILayout.MaxHeight(18), GUILayout.Width(88)))
{
Undo.RecordObject(actor, "Unfix particles");
for (int i = 0; i < selectionStatus.Length; i++)
{
if (selectionStatus[i])
{
if (actor.invMasses[i] == 0)
{
SetPropertyValue(ParticleProperty.MASS, i, 1);
}
}
}
actor.PushDataToSolver(new ObiSolverData(ObiSolverData.ParticleData.INV_MASSES));
EditorUtility.SetDirty(actor);
}
if (GUILayout.Button("CUT"))
{
ObiCloth mesh = ((ObiCloth)actor);
mesh.DistanceConstraints.RemoveFromSolver(null);
mesh.AerodynamicConstraints.RemoveFromSolver(null);
MeshBuffer buf = new MeshBuffer(mesh.clothMesh);
int[] sel = new int[2];
int k = 0;
for (int i = 0; i < selectionStatus.Length; i++)
{
if (selectionStatus[i])
{
sel[k] = i;
k++;
if (k == 2)
{
break;
}
}
}
int cindex = -1;
for (int j = 0; j < mesh.DistanceConstraints.restLengths.Count; j++)
{
if ((mesh.DistanceConstraints.springIndices[j * 2] == sel[0] && mesh.DistanceConstraints.springIndices[j * 2 + 1] == sel[1]) ||
(mesh.DistanceConstraints.springIndices[j * 2] == sel[1] && mesh.DistanceConstraints.springIndices[j * 2 + 1] == sel[0]))
{
cindex = j;
break;
}
}
if (cindex >= 0)
{
mesh.Tear(cindex, buf);
}
mesh.DistanceConstraints.AddToSolver(mesh);
mesh.AerodynamicConstraints.AddToSolver(mesh);
buf.Apply();
mesh.GetMeshDataArrays(mesh.clothMesh);
}
GUILayout.EndHorizontal();
GUILayout.BeginHorizontal();
EditorGUI.showMixedValue = false;
for (int i = 0; i < selectionStatus.Length; i++)
{
if (selectionStatus[i] && !Mathf.Approximately(GetPropertyValue(currentProperty, i), selectionProperty))
{
EditorGUI.showMixedValue = true;
}
}
newProperty = EditorGUILayout.FloatField(newProperty, GUILayout.Width(88));
EditorGUI.showMixedValue = false;
if (GUILayout.Button("Set " + GetPropertyName(), GUILayout.Width(88)))
{
Undo.RecordObject(actor, "Set particle property");
selectionProperty = newProperty;
for (int i = 0; i < selectionStatus.Length; i++)
{
if (selectionStatus[i])
{
SetPropertyValue(currentProperty, i, selectionProperty);
}
}
ParticlePropertyChanged();
EditorUtility.SetDirty(actor);
}
GUILayout.EndHorizontal();
GUI.enabled = true;
}
void DrawSelectionToolUI()
{
GUILayout.Label(selectedCount+" particle(s) selected");
GUILayout.BeginHorizontal();
if (GUILayout.Button("Invert",GUILayout.Width(88))){
for(int i = 0; i < selectionStatus.Length; i++){
if (actor.active[i])
selectionStatus[i] = !selectionStatus[i];
}
SelectionChanged();
}
GUI.enabled = selectedCount > 0;
if (GUILayout.Button("Clear",GUILayout.Width(88))){
for(int i = 0; i < selectionStatus.Length; i++)
selectionStatus[i] = false;
SelectionChanged();
}
GUI.enabled = true;
GUILayout.EndHorizontal();
GUILayout.BeginHorizontal();
if (GUILayout.Button("Select fixed",GUILayout.Width(88))){
for(int i = 0; i < actor.invMasses.Length; i++){
if (actor.active[i] && actor.invMasses[i] == 0)
selectionStatus[i] = true;
}
SelectionChanged();
}
GUI.enabled = selectedCount > 0;
if (GUILayout.Button("Unselect fixed",GUILayout.Width(88))){
for(int i = 0; i < actor.invMasses.Length; i++){
if (actor.active[i] && actor.invMasses[i] == 0)
selectionStatus[i] = false;
}
SelectionChanged();
}
GUI.enabled = true;
GUILayout.EndHorizontal();
GUI.enabled = selectedCount > 0;
GUILayout.BeginHorizontal();
if (GUILayout.Button(new GUIContent("Fix",EditorGUIUtility.Load("PinIcon.psd") as Texture2D),GUILayout.MaxHeight(18),GUILayout.Width(88))){
Undo.RecordObject(actor, "Fix particles");
for(int i = 0; i < selectionStatus.Length; i++){
if (selectionStatus[i]){
if (actor.invMasses[i] != 0){
SetPropertyValue(ParticleProperty.MASS,i,Mathf.Infinity);
newProperty = GetPropertyValue(ParticleProperty.MASS,i);
actor.velocities[i] = Vector3.zero;
}
}
}
actor.PushDataToSolver(new ObiSolverData(ObiSolverData.ParticleData.INV_MASSES | ObiSolverData.ParticleData.VELOCITIES));
EditorUtility.SetDirty(actor);
}
if (GUILayout.Button(new GUIContent("Unfix",EditorGUIUtility.Load("UnpinIcon.psd") as Texture2D),GUILayout.MaxHeight(18),GUILayout.Width(88))){
Undo.RecordObject(actor, "Unfix particles");
for(int i = 0; i < selectionStatus.Length; i++){
if (selectionStatus[i]){
if (actor.invMasses[i] == 0){
SetPropertyValue(ParticleProperty.MASS,i,1);
}
}
}
actor.PushDataToSolver(new ObiSolverData(ObiSolverData.ParticleData.INV_MASSES));
EditorUtility.SetDirty(actor);
}
if (GUILayout.Button("CUT")){
ObiCloth mesh = ((ObiCloth)actor);
mesh.DistanceConstraints.RemoveFromSolver(null);
mesh.AerodynamicConstraints.RemoveFromSolver(null);
MeshBuffer buf = new MeshBuffer(mesh.clothMesh);
int[] sel = new int[2];
int k = 0;
for(int i = 0; i < selectionStatus.Length; i++){
if (selectionStatus[i]){
sel[k] = i;
k++;
if (k == 2) break;
}
}
int cindex = -1;
for (int j = 0; j < mesh.DistanceConstraints.restLengths.Count; j++){
if ((mesh.DistanceConstraints.springIndices[j*2] == sel[0] && mesh.DistanceConstraints.springIndices[j*2+1] == sel[1]) ||
(mesh.DistanceConstraints.springIndices[j*2] == sel[1] && mesh.DistanceConstraints.springIndices[j*2+1] == sel[0])){
cindex = j;
break;
}
}
if (cindex >= 0)
mesh.Tear(cindex,buf);
mesh.DistanceConstraints.AddToSolver(mesh);
mesh.AerodynamicConstraints.AddToSolver(mesh);
buf.Apply();
mesh.GetMeshDataArrays(mesh.clothMesh);
}
GUILayout.EndHorizontal();
GUILayout.BeginHorizontal();
EditorGUI.showMixedValue = false;
for(int i = 0; i < selectionStatus.Length; i++){
if (selectionStatus[i] && !Mathf.Approximately(GetPropertyValue(currentProperty,i), selectionProperty)){
EditorGUI.showMixedValue = true;
}
}
newProperty = EditorGUILayout.FloatField(newProperty,GUILayout.Width(88));
EditorGUI.showMixedValue = false;
if (GUILayout.Button("Set "+GetPropertyName(),GUILayout.Width(88))){
Undo.RecordObject(actor, "Set particle property");
selectionProperty = newProperty;
for(int i = 0; i < selectionStatus.Length; i++){
if (selectionStatus[i]){
SetPropertyValue(currentProperty,i,selectionProperty);
}
}
ParticlePropertyChanged();
EditorUtility.SetDirty(actor);
}
GUILayout.EndHorizontal();
GUI.enabled = true;
}
/**
* Calculates angle-weighted normals for the input mesh, taking into account shared vertices.
*/
/*public Vector3[] AngleWeightedNormals(){
*
* if (input == null) return null;
*
* Vector3[] normals = input.normals;
* Vector3[] vertices = input.vertices;
*
* for(int i = 0; i < normals.Length; i++)
* normals[i] = Vector3.zero;
*
* int i1,i2,i3;
* Vector3 e1, e2;
* foreach(HEFace face in heFaces){
*
* HEVertex hv1 = heVertices[heHalfEdges[face.edges[0]].endVertex];
* HEVertex hv2 = heVertices[heHalfEdges[face.edges[1]].endVertex];
* HEVertex hv3 = heVertices[heHalfEdges[face.edges[2]].endVertex];
*
* i1 = hv1.physicalIDs[0];
* i2 = hv2.physicalIDs[0];
* i3 = hv3.physicalIDs[0];
*
* e1 = vertices[i2]-vertices[i1];
* e2 = vertices[i3]-vertices[i1];
* foreach(int pi in hv1.physicalIDs)
* normals[pi] += Vector3.Cross(e1,e2) * Mathf.Acos(Vector3.Dot(e1.normalized,e2.normalized));
*
* e1 = vertices[i3]-vertices[i2];
* e2 = vertices[i1]-vertices[i2];
* foreach(int pi in hv2.physicalIDs)
* normals[pi] += Vector3.Cross(e1,e2) * Mathf.Acos(Vector3.Dot(e1.normalized,e2.normalized));
*
* e1 = vertices[i1]-vertices[i3];
* e2 = vertices[i2]-vertices[i3];
* foreach(int pi in hv3.physicalIDs)
* normals[pi] += Vector3.Cross(e1,e2) * Mathf.Acos(Vector3.Dot(e1.normalized,e2.normalized));
*
* }
*
* for(int i = 0; i < normals.Length; i++)
* normals[i].Normalize();
*
* return normals;
* }*/
/**
* Splits a vertex in two along a plane. Returns true if the vertex can be split, false otherwise.
* \param vertex the vertex to split.
* \param splitPlane plane to split the vertex at.
* \param newVertex the newly created vertex after the split operation has been performed.
* \param vertices new mesh vertices list after the split operation.
* \param updatedEdges indices of half-edges that need some kind of constraint update.
*/
public bool SplitVertex(Oni.Vertex vertex, Plane splitPlane, MeshBuffer meshBuffer, Vector4[] positions, List <int> particleIndices, out Oni.Vertex newVertex, out HashSet <int> updatedEdges, out HashSet <int> addedEdges)
{
// initialize return values:
updatedEdges = new HashSet <int>();
addedEdges = new HashSet <int>();
newVertex = new Oni.Vertex();
// initialize face lists for each side of the split plane.
List <Oni.Face> side1Faces = new List <Oni.Face>();
List <Oni.Face> side2Faces = new List <Oni.Face>();
HashSet <int> side2Edges = new HashSet <int>();
// classify adjacent faces depending on which side of the cut plane they reside in:
foreach (Oni.Face face in GetNeighbourFacesEnumerator(vertex))
{
Oni.HalfEdge e1 = heHalfEdges[face.halfEdge];
Oni.HalfEdge e2 = heHalfEdges[e1.nextHalfEdge];
Oni.HalfEdge e3 = heHalfEdges[e2.nextHalfEdge];
// Skip this face if it doesnt contain the splitted vertex.
// This can happen because edge pair links are not updated, and so a vertex in the cut stil "sees"
// the faces at the other side like neighbour faces.
if (e1.endVertex != vertex.index && e2.endVertex != vertex.index && e3.endVertex != vertex.index)
{
continue;
}
// Average positions to get the center of the face:
Vector3 faceCenter = (positions[particleIndices[e1.endVertex]] +
positions[particleIndices[e2.endVertex]] +
positions[particleIndices[e3.endVertex]]) / 3.0f;
if (splitPlane.GetSide(faceCenter))
{
side1Faces.Add(face);
}
else
{
side2Faces.Add(face);
side2Edges.Add(e1.index);
side2Edges.Add(e2.index);
side2Edges.Add(e3.index);
}
}
// If the vertex cant be split, return false.
if (side1Faces.Count == 0 || side2Faces.Count == 0)
{
return(false);
}
// create a new vertex:
newVertex = new Oni.Vertex(vertex.position, heVertices.Count, vertex.halfEdge);
// add a new vertex to the mesh too, if needed.
if (meshBuffer != null)
{
visualVertexBuffer.Add(new List <int>()
{
meshBuffer.vertexCount
});
meshBuffer.AddVertex(visualVertexBuffer[vertex.index][0]);
}
// rearrange edges at side 1:
foreach (Oni.Face face in side1Faces)
{
// find half edges that start or end at the split vertex:
int[] faceEdges = GetFaceEdges(face);
Oni.HalfEdge edgeIn = heHalfEdges[Array.Find <int>(faceEdges, e => heHalfEdges[e].endVertex == vertex.index)];
Oni.HalfEdge edgeOut = heHalfEdges[Array.Find <int>(faceEdges, e => this.GetHalfEdgeStartVertex(heHalfEdges[e]) == vertex.index)];
// Edges whose pair is on the other side of the cut and share the same vertices, will spawn a new constraint.
if (side2Edges.Contains(edgeIn.pair) && GetHalfEdgeStartVertex(edgeIn) == heHalfEdges[edgeIn.pair].endVertex)
{
addedEdges.Add(Mathf.Max(edgeIn.index, edgeIn.pair));
}
if (side2Edges.Contains(edgeOut.pair) && GetHalfEdgeStartVertex(heHalfEdges[edgeOut.pair]) == edgeOut.endVertex)
{
addedEdges.Add(Mathf.Max(edgeOut.index, edgeOut.pair));
}
// Constraints for these edges should be updated. (There's no guarantee the constraint exists!).
updatedEdges.Add(edgeIn.index);
updatedEdges.Add(edgeIn.pair);
updatedEdges.Add(edgeOut.index);
updatedEdges.Add(edgeOut.pair);
// stitch in half edge to new vertex
edgeIn.endVertex = newVertex.index;
newVertex.halfEdge = edgeOut.index;
heHalfEdges[edgeIn.index] = edgeIn;
heHalfEdges[edgeOut.index] = edgeOut;
// update mesh triangle buffer to point at new vertex where needed:
if (meshBuffer != null)
{
if (meshBuffer.triangles[face.index * 3] == visualVertexBuffer[vertex.index][0])
{
meshBuffer.triangles[face.index * 3] = meshBuffer.vertexCount - 1;
}
if (meshBuffer.triangles[face.index * 3 + 1] == visualVertexBuffer[vertex.index][0])
{
meshBuffer.triangles[face.index * 3 + 1] = meshBuffer.vertexCount - 1;
}
if (meshBuffer.triangles[face.index * 3 + 2] == visualVertexBuffer[vertex.index][0])
{
meshBuffer.triangles[face.index * 3 + 2] = meshBuffer.vertexCount - 1;
}
}
}
// Add the nex vertex to the half-edge.
heVertices.Add(newVertex);
meshInfo.closed = false;
return(true);
}