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Use the new delaunay triangulation for the add face action in case more than 3 verts are selected.

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Relintai 2022-01-27 19:26:47 +01:00
parent e0dac27954
commit 53f01ae370
3 changed files with 129 additions and 15 deletions
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26
game/addons/mesh_data_resource_editor/MDIEd.tscn
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@ -203,7 +203,7 @@ scroll_horizontal_enabled = false
[node name="VBoxContainer2" type="VBoxContainer" parent="VBoxContainer/ScrollContainer"]
margin_right = 998.0
margin_bottom = 698.0
margin_bottom = 674.0
size_flags_horizontal = 3
[node name="HBoxContainer6" type="HBoxContainer" parent="VBoxContainer/ScrollContainer/VBoxContainer2"]
@ -379,7 +379,7 @@ __meta__ = {
[node name="VertexOps" type="VBoxContainer" parent="VBoxContainer/ScrollContainer/VBoxContainer2"]
margin_top = 112.0
margin_right = 998.0
margin_bottom = 216.0
margin_bottom = 192.0
[node name="OperationsLabel" type="Label" parent="VBoxContainer/ScrollContainer/VBoxContainer2/VertexOps"]
margin_right = 998.0
@ -391,7 +391,7 @@ valign = 1
[node name="Operations" type="VBoxContainer" parent="VBoxContainer/ScrollContainer/VBoxContainer2/VertexOps"]
margin_top = 18.0
margin_right = 998.0
margin_bottom = 104.0
margin_bottom = 80.0
[node name="AddFace" type="Button" parent="VBoxContainer/ScrollContainer/VBoxContainer2/VertexOps/Operations"]
margin_right = 998.0
@ -541,14 +541,14 @@ margin_bottom = 20.0
text = "Delete"
[node name="HSeparator4" type="HSeparator" parent="VBoxContainer/ScrollContainer/VBoxContainer2"]
margin_top = 220.0
margin_top = 196.0
margin_right = 998.0
margin_bottom = 224.0
margin_bottom = 200.0
[node name="Operations" type="VBoxContainer" parent="VBoxContainer/ScrollContainer/VBoxContainer2"]
margin_top = 228.0
margin_top = 204.0
margin_right = 998.0
margin_bottom = 592.0
margin_bottom = 568.0
[node name="OperationsLabel" type="Label" parent="VBoxContainer/ScrollContainer/VBoxContainer2/Operations"]
margin_right = 998.0
@ -642,14 +642,14 @@ margin_bottom = 346.0
text = "Unwrap"
[node name="HSeparator3" type="HSeparator" parent="VBoxContainer/ScrollContainer/VBoxContainer2"]
margin_top = 596.0
margin_top = 572.0
margin_right = 998.0
margin_bottom = 600.0
margin_bottom = 576.0
[node name="Add" type="VBoxContainer" parent="VBoxContainer/ScrollContainer/VBoxContainer2"]
margin_top = 604.0
margin_top = 580.0
margin_right = 998.0
margin_bottom = 690.0
margin_bottom = 666.0
[node name="AddLabel" type="Label" parent="VBoxContainer/ScrollContainer/VBoxContainer2/Add"]
margin_right = 998.0
@ -683,9 +683,9 @@ size_flags_horizontal = 3
text = "Quad"
[node name="HSeparator2" type="HSeparator" parent="VBoxContainer/ScrollContainer/VBoxContainer2"]
margin_top = 694.0
margin_top = 670.0
margin_right = 998.0
margin_bottom = 698.0
margin_bottom = 674.0
[node name="Popups" type="Control" parent="."]
margin_left = 7.0

43
game/addons/mesh_data_resource_editor/MIDGizmo.gd
View File

@ -1037,6 +1037,13 @@ func split():
func disconnect_action():
pass
func get_first_triangle_index_for_vertex(indx : int) -> int:
for i in range(_indices.size()):
if _indices[i] == indx:
return i / 3
return -1
func create_face():
if !_mdr:
return
@ -1054,11 +1061,43 @@ func create_face():
for sp in _selected_points:
points.push_back(_handle_points[sp])
MDRMeshUtils.add_triangulated_mesh_from_points(_mdr, points, _last_known_camera_facing)
if points.size() == 3:
var i0 : int = _handle_to_vertex_map[_selected_points[0]][0]
var i1 : int = _handle_to_vertex_map[_selected_points[1]][0]
var i2 : int = _handle_to_vertex_map[_selected_points[2]][0]
var v0 : Vector3 = points[0]
var v1 : Vector3 = points[1]
var v2 : Vector3 = points[2]
var tfn : Vector3 = Vector3()
if orig_arr[ArrayMesh.ARRAY_NORMAL] != null && orig_arr[ArrayMesh.ARRAY_NORMAL].size() == orig_arr[ArrayMesh.ARRAY_VERTEX].size():
var normals : PoolVector3Array = orig_arr[ArrayMesh.ARRAY_NORMAL]
tfn += normals[i0]
tfn += normals[i1]
tfn += normals[i2]
tfn /= 3
tfn = tfn.normalized()
else:
tfn = MDRMeshUtils.get_face_normal(_vertices[i0], _vertices[i1], _vertices[i2])
var flip : bool = MDRMeshUtils.should_triangle_flip(v0, v1, v2, tfn)
MDRMeshUtils.add_triangle_at(_mdr, v0, v1, v2, flip)
add_mesh_change_undo_redo(orig_arr, _mdr.array, "Create Face")
enable_change_event()
return
if !MDRMeshUtils.add_triangulated_mesh_from_points_delaunay(_mdr, points, _last_known_camera_facing):
enable_change_event()
return
add_mesh_change_undo_redo(orig_arr, _mdr.array, "Create Face")
_selected_points.resize(0)
#_selected_points.resize(0)
enable_change_event()
elif selection_mode == SelectionMode.SELECTION_MODE_EDGE:
pass

75
game/addons/mesh_data_resource_editor/utilities/mdred_mesh_utils.gd
View File

@ -34,6 +34,81 @@ static func remove_triangle(mdr : MeshDataResource, triangle_index : int) -> voi
mdr.set_array(arrays)
static func add_triangulated_mesh_from_points_delaunay(mdr : MeshDataResource, selected_points : PoolVector3Array, last_known_camera_facing : Vector3) -> bool:
if selected_points.size() < 3:
return false
var tetrahedrons : PoolIntArray = MeshUtils.delaunay3d_tetrahedralize(selected_points)
if tetrahedrons.size() == 0:
# try randomly displacing the points a bit, it can help
var rnd_selected_points : PoolVector3Array = PoolVector3Array()
rnd_selected_points.append_array(selected_points)
for i in range(rnd_selected_points.size()):
rnd_selected_points[i] = rnd_selected_points[i] + (Vector3(randf(),randf(), randf()) * 0.1)
tetrahedrons = MeshUtils.delaunay3d_tetrahedralize(rnd_selected_points)
if tetrahedrons.size() == 0:
print("add_triangulated_mesh_from_points_delaunay: tetrahedrons.size() == 0!")
return false
var st : SurfaceTool = SurfaceTool.new()
st.begin(Mesh.PRIMITIVE_TRIANGLES)
for i in range(0, tetrahedrons.size(), 4):
var i0 : int = tetrahedrons[i]
var i1 : int = tetrahedrons[i + 1]
var i2 : int = tetrahedrons[i + 2]
var i3 : int = tetrahedrons[i + 3]
var v0 : Vector3 = selected_points[i0]
var v1 : Vector3 = selected_points[i1]
var v2 : Vector3 = selected_points[i2]
var v3 : Vector3 = selected_points[i3]
var flip : bool = is_normal_similar(v0, v1, v2, last_known_camera_facing)
var normal : Vector3 = get_face_normal(v0, v1, v2, flip)
st.add_uv(Vector2(0, 1))
st.add_normal(normal)
st.add_vertex(v0)
st.add_uv(Vector2(0.5, 0))
st.add_normal(normal)
st.add_vertex(v1)
st.add_uv(Vector2(1, 1))
st.add_normal(normal)
st.add_vertex(v2)
st.add_uv(Vector2(1, 1))
st.add_normal(normal)
st.add_vertex(v3)
var im3 : int = i
if !flip:
st.add_index(im3 + 0)
st.add_index(im3 + 1)
st.add_index(im3 + 2)
st.add_index(im3 + 0)
st.add_index(im3 + 2)
st.add_index(im3 + 3)
else:
st.add_index(im3 + 3)
st.add_index(im3 + 2)
st.add_index(im3 + 0)
st.add_index(im3 + 2)
st.add_index(im3 + 1)
st.add_index(im3 + 0)
merge_in_surface_tool(mdr, st)
return true
static func add_triangulated_mesh_from_points(mdr : MeshDataResource, selected_points : PoolVector3Array, last_known_camera_facing : Vector3) -> void:
if selected_points.size() < 3:
return