public MeshSplitterConvex(MeshContainer meshContainer, Plane splitPlane, Quaternion splitRotation)
{
_mesh = meshContainer;
_splitPlane = splitPlane;
_splitRotation = splitRotation;
_ownRotation = meshContainer.transform.rotation;
capInds = new List <int>(meshContainer.vertexCount / 10);
}
public MeshSplitterConcave(MeshContainer meshContainer, Plane splitPlane, Quaternion splitRotation)
{
_mesh = meshContainer;
_splitPlane = splitPlane;
_splitRotation = splitRotation;
_ownRotation = meshContainer.transform.rotation;
_edges = new List <Edge>(meshContainer.vertexCount / 10);
}
public void Split(Transform splitTransform)
{
if (!_isSplitting)
{
_isSplitting = _splitMesh = true;
_splitPlane = new Plane(splitTransform);
MeshFilter[] meshFilters = GetComponentsInChildren <MeshFilter>();
SkinnedMeshRenderer[] skinnedRenderes = GetComponentsInChildren <SkinnedMeshRenderer>();
_meshContainerStatic = new MeshContainer[meshFilters.Length];
_meshSplitterStatic = new IMeshSplitter[meshFilters.Length];
for (int i = 0; i < meshFilters.Length; i++)
{
_meshContainerStatic[i] = new MeshContainer(meshFilters[i]);
_meshSplitterStatic[i] = Convex ? (IMeshSplitter) new MeshSplitterConvex(_meshContainerStatic[i], _splitPlane, splitTransform.rotation) :
(IMeshSplitter) new MeshSplitterConcave(_meshContainerStatic[i], _splitPlane, splitTransform.rotation);
if (UseCapUV)
{
_meshSplitterStatic[i].SetCapUV(UseCapUV, CustomUV, CapUVMin, CapUVMax);
}
#if UNITY_EDITOR
_meshSplitterStatic[i].DebugDraw(ShowDebug);
#endif
}
_meshSplitterSkinned = new IMeshSplitter[skinnedRenderes.Length];
_meshContainerSkinned = new MeshContainer[skinnedRenderes.Length];
for (int i = 0; i < skinnedRenderes.Length; i++)
{
_meshContainerSkinned[i] = new MeshContainer(skinnedRenderes[i]);
_meshSplitterSkinned[i] = Convex ? (IMeshSplitter) new MeshSplitterConvex(_meshContainerSkinned[i], _splitPlane, splitTransform.rotation) :
(IMeshSplitter) new MeshSplitterConcave(_meshContainerSkinned[i], _splitPlane, splitTransform.rotation);
if (UseCapUV)
{
_meshSplitterSkinned[i].SetCapUV(UseCapUV, CustomUV, CapUVMin, CapUVMax);
}
#if UNITY_EDITOR
_meshSplitterSkinned[i].DebugDraw(ShowDebug);
#endif
}
}
}
/// <summary>
/// Test if the angle between next edge and current edge is less or equal to 180 degrees.
/// </summary>
/// <param name="currentEdge">Current Edge</param>
/// <param name="nextEdge">Next Edge</param>
/// <param name="cw">Direction is clockwise?</param>
/// <returns></returns>
private int TestInnerSide(Edge currentEdge, Edge nextEdge, bool cw)
{
Plane plane = new Plane(currentEdge.Left, currentEdge.Normal);
float pointSide = plane.PointSide(cw ? nextEdge.Right : nextEdge.Left);
if (pointSide < -.000001f) // less than zero with a threshold, inner side
{
return(1);
}
if (pointSide < .000001f) // < 180 degree angle, needs to be melted
{
return(0);
}
return(-1);
}