private void Generate()
{
Vector3[] vertices = inputMesh.vertices;
int vertexCount = inputMesh.vertexCount;
int[] triangles = inputMesh.triangles;
int trianglesCount = triangles.Length / 3;
int nodesCount = 0;
int edgesCount = 0;
int facesCount = 0;
int tetrasCount = 0;
int err = TetrahedralizeGetSizes2(vertices, vertexCount, triangles, trianglesCount, out nodesCount, out edgesCount, out facesCount, out tetrasCount);
if (err != 0)
{
PrintError(err);
return;
}
float[] nodesOut = new float[nodesCount * 3];
float[] attribsOut = new float[nodesCount * 2];
Link[] edgesOut = new Link[edgesCount];
int[] edgesNeighboursOut = new int[edgesCount];
Triangle[] facesOut = new Triangle[facesCount];
int[] facesNeighboursOut = new int[facesCount * 2];
int[] facesMarkersOut = new int[facesCount];
Tetrahedron[] tetrasOut = new Tetrahedron[tetrasCount];
int err2 = Tetrahedralize2(vertices, vertexCount, triangles, trianglesCount, nodesOut, out nodesCount, edgesOut, out edgesCount, facesOut, out facesCount, tetrasOut, out tetrasCount);
if (err2 != 0)
{
PrintError(err2);
return;
}
GameObject go = new GameObject();
go.name = newName;
go.layer = colliderLayer;
TetMesh tetMesh = go.AddComponent<TetMesh>();
tetMesh.InitArrays(nodesCount);
for (int i = 0; i < nodesCount; i++)
{
tetMesh.nodesPositions[i] = new Vector3(nodesOut[i * 3 + 0], nodesOut[i * 3 + 1], nodesOut[i * 3 + 2]);
}
tetMesh.edges = new Link[edgesCount];
tetMesh.edgesCount = edgesCount;
for (int i = 0; i < edgesCount; i++)
{
tetMesh.edges[i] = edgesOut[i];
}
tetMesh.trianglesCount = facesCount;
tetMesh.triangles = new Triangle[facesCount];
for (int i = 0; i < facesCount; i++)
{
tetMesh.triangles[i] = facesOut[i];
}
tetMesh.tetrasCount = tetrasCount;
tetMesh.tetras = new Tetrahedron[tetrasCount];
for (int i = 0; i < tetrasCount; i++)
{
tetMesh.tetras[i] = tetrasOut[i];
}
//NODES GENERATING
if (generateNodes && nodePrefab != null)
{
Rigidbody[] rigidbodies = new Rigidbody[tetMesh.pointsCount];
PhysXMassSpringModel physXmsm = go.AddComponent<PhysXMassSpringModel>();
physXmsm.m_rigidBodiesCount = nodesCount;
physXmsm.m_rigidBodies = rigidbodies;
physXmsm.m_stiffness = springKs;
physXmsm.m_damping = springKd;
PhysXMeshUpdater softMesh = go.AddComponent<PhysXMeshUpdater>();
for (int i = 0; i < tetMesh.pointsCount; i++)
{
GameObject nodeGO = PrefabUtility.InstantiatePrefab(nodePrefab) as GameObject;
nodeGO.transform.position = tetMesh.nodesPositions[i];
nodeGO.name = newName+"Node_" + i;
nodeGO.transform.parent = tetMesh.transform;
rigidbodies[i] = nodeGO.GetComponent<Rigidbody>();
}
if (generateSpringJoints)
{
SpringJoint[] springJoints = new SpringJoint[tetMesh.edgesCount];
for (int i = 0; i < tetMesh.edgesCount; i++)
{
Link link = tetMesh.edges[i];
int idA = link.idA;
int idB = link.idB;
Rigidbody rbA = rigidbodies[idA].GetComponent<Rigidbody>();
Rigidbody rbB = rigidbodies[idB].GetComponent<Rigidbody>();
SpringJoint sj = rbA.gameObject.AddComponent<SpringJoint>();
sj.connectedBody = rbB;
sj.spring = springKs;
sj.damper = springKd;
springJoints[i] = sj;
}
physXmsm.m_springsCount = edgesCount;
physXmsm.m_springJoints = springJoints;
}
}
//MESH GENERATING
MeshFilter meshFilter = go.AddComponent<MeshFilter>();
MeshRenderer meshRenderer = go.AddComponent<MeshRenderer>();
Material mat = new Material(Shader.Find("Diffuse"));
mat.name = this.newName + "Mat";
meshRenderer.material = mat;
meshFilter.sharedMesh = this.inputMesh;
meshFilter.sharedMesh.MarkDynamic();
if (addMeshCollider)
{
MeshCollider mc = go.AddComponent<MeshCollider>();
mc.sharedMesh = this.inputMesh;
}
// if (deletePrevious && previousGameObject != null)
// DestroyImmediate(previousGameObject, false);
previousGameObject = go;
Selection.objects = new Object[]{go};
Debug.Log("TetGen: "+nodesCount +" nodes, "+edgesCount +" links, "+facesCount +" faces, " +tetrasCount +" tetras.");
this.Close();
}
public static extern int Tetrahedralize2(Vector3[] vertices, int verticesCount, int[] triangles, int trianglesCount, float[] nodes, out int nodesCount, Link[] links, out int linksCount, Triangle[] tris, out int trisCount, Tetrahedron[] tetras, out int tetrasCount);