void Update()
{
if (Input.GetMouseButtonUp(0))
{
Ray cameraRay = Camera.main.ScreenPointToRay(Input.mousePosition);
RaycastHit rayCastHitInfo = default(RaycastHit);
if (Physics.Raycast(cameraRay, out rayCastHitInfo))
{
Mesh originMesh = rayCastHitInfo.collider.gameObject.GetComponent <MeshFilter>().sharedMesh;
Vector3 slicerNormal = rayCastHitInfo.normal;
Vector3 pointOnSlicer = rayCastHitInfo.point - slicerNormal * SlicerOffset;
Plane slicerPlane = new Plane(slicerNormal, pointOnSlicer);
Matrix4x4 trs = Matrix4x4.TRS(rayCastHitInfo.collider.gameObject.transform.position, rayCastHitInfo.collider.gameObject.transform.rotation, rayCastHitInfo.collider.gameObject.transform.localScale);
Mesh m = Object.Instantiate <Mesh>(originMesh);
m.ApplyTransposeMatrix(trs);
MeshSlicer slicer = new MeshSlicer(m, slicerPlane);
slicer.Slice(false, false);
slicer.RenderSlicedGameObject(SlicedUpperMaterial);
}
}
}
private void OnGUI()
{
if (GUILayout.Button("slice mesh", GUILayout.Width(100), GUILayout.Height(60)))
{
Plane slicerPlane = new Plane(slicerNormal, slicerDistance);
Mesh targetMesh = null;
Material originalMaterial = null;
MeshFilter meshFilter = TargetGameobject.GetComponentInChildren <MeshFilter>();
if (meshFilter != null)
{
targetMesh = meshFilter.mesh;
}
else
{
SkinnedMeshRenderer skinMeshRenderer = TargetGameobject.GetComponentInChildren <SkinnedMeshRenderer>();
if (skinMeshRenderer != null)
{
targetMesh = skinMeshRenderer.sharedMesh;
originalMaterial = skinMeshRenderer.material;
}
}
if (!targetMesh)
{
Debug.LogError("target mesh is null");
return;
}
if (!originalMaterial)
{
MeshRenderer meshRenderer = TargetGameobject.GetComponentInChildren <MeshRenderer>();
if (meshRenderer)
{
originalMaterial = meshRenderer.material;
}
}
m_meshSlicer = new MeshSlicer(targetMesh, slicerPlane);
m_meshSlicer.Slice(IncludeIntersection, IncludeOppsiteSide);
if (!SlicedUpperMaterial)
{
SlicedUpperMaterial = originalMaterial;
}
m_meshSlicer.RenderSlicedGameObject(SlicedUpperMaterial, SlicedUnderMaterial, SlicedUpperIntersectionMaterial, SlicedUnderIntersectionMaterial, TargetGameobject.name);
if (RemainOriginGameObject)
{
TargetGameobject.SetActive(false);
}
else
{
GameObject.Destroy(TargetGameobject);
}
}
}
