1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
|
tool
class_name VoxelTool
extends Reference
# Used to construct a Mesh with provided VoxelSet
# and by specifying voxel faces individually.
class Surface:
## Public Variables
# Index of the last vertex in Mesh being constructed
var index : int
var material : SpatialMaterial
# SurfaceTool used to construct Mesh
var surface_tool : SurfaceTool
## Built-In Virtual Methods
func _init() -> void:
index = 0
surface_tool = SurfaceTool.new()
surface_tool.begin(Mesh.PRIMITIVE_TRIANGLES)
## Private Variables
# Flag indicating whether uv mapping should be applied to constructed mesh
var _uv_voxels := false
# Contains Surfaces being constructed
var _surfaces := {}
# VoxelSet used when constructing Mesh, is set on begin
var _voxel_set : VoxelSet = null
## Public Methods
# Called before constructing mesh, takes the VoxelSet with which Mesh will be constructed
func begin(voxel_set : VoxelSet = null, uv_voxels := false) -> void:
clear()
_uv_voxels = uv_voxels and voxel_set.uv_ready()
_voxel_set = voxel_set
# Clear all information
func clear() -> void:
_uv_voxels = false
_surfaces.clear()
_voxel_set = null
# Returns a constructed ArrayMesh
func commit() -> ArrayMesh:
var mesh := ArrayMesh.new()
for surface_id in _surfaces:
var surface : Surface = _surfaces[surface_id]
var submesh = surface.surface_tool.commit_to_arrays()
mesh.add_surface_from_arrays(
Mesh.PRIMITIVE_TRIANGLES,
submesh)
mesh.surface_set_name(mesh.get_surface_count() - 1, surface_id)
mesh.surface_set_material(mesh.get_surface_count() - 1, surface.material)
clear()
return mesh
# Adds a voxel face to Mesh with given vertex positions and voxel data
# voxel : Dictioanry<String, Variant> : voxel data to use
# face : Vector3 : face of voxel to generate
# bottom_right : Vector3 : grid position of bottom right vertex pertaining to face
# bottom_left : Vector3 : grid position of bottom left vertex pertaining to face, if not given botttom right is used
# top_right : Vector3 : grid position of top right vertex pertaining to face, if not given botttom right is used
# top_left : Vector3 : grid position of top left vertex pertaining to face, if not given botttom right is used
func add_face(
voxel : Dictionary,
face : Vector3,
bottom_right : Vector3,
bottom_left := Vector3.INF,
top_right := Vector3.INF,
top_left := Vector3.INF) -> void:
bottom_right = bottom_right
if bottom_left == Vector3.INF: bottom_left = bottom_right
if top_right == Vector3.INF: top_right = bottom_right
if top_left == Vector3.INF: top_left = bottom_right
var color := Voxel.get_face_color(voxel, face)
var uv := Voxel.get_face_uv(voxel, face) if _uv_voxels else -Vector2.ONE
var uv_surface := uv != -Vector2.ONE
var material := Voxel.get_material(voxel)
var metal := Voxel.get_metallic(voxel)
var specular := Voxel.get_specular(voxel)
var rough := Voxel.get_roughness(voxel)
var energy := Voxel.get_energy(voxel)
var energy_color := Voxel.get_energy_color(voxel)
var surface_id := str(material) if material > -1 else (str(metal) + "," + str(specular) + "," + str(rough) + "," + str(energy) + "," + str(energy_color))
if uv_surface:
surface_id += "_uv"
var surface : Surface = _surfaces.get(surface_id)
if not is_instance_valid(surface):
surface = Surface.new()
surface.material = _voxel_set.get_material(material) if is_instance_valid(_voxel_set) else null
if is_instance_valid(surface.material):
surface.material = surface.material.duplicate()
else:
surface.material = SpatialMaterial.new()
surface.material.metallic = metal
surface.material.metallic_specular = specular
surface.material.roughness = rough
if energy > 0.0:
surface.material.emission_enabled = true
surface.material.emission = energy_color
surface.material.emission_energy = energy
if surface.material is SpatialMaterial:
surface.material.vertex_color_use_as_albedo = true
if uv_surface:
surface.material.albedo_texture = _voxel_set.tiles
_surfaces[surface_id] = surface
surface.surface_tool.add_normal(face)
surface.surface_tool.add_color(color)
match face:
Vector3.RIGHT:
if uv_surface:
surface.surface_tool.add_uv((uv + Vector2.RIGHT) * _voxel_set.uv_scale())
surface.surface_tool.add_vertex((top_left + Vector3.RIGHT + Vector3.UP) * Voxel.VoxelWorldSize)
if uv_surface:
surface.surface_tool.add_uv((uv + Vector2.ONE) * _voxel_set.uv_scale())
surface.surface_tool.add_vertex((bottom_left + Vector3.RIGHT) * Voxel.VoxelWorldSize)
if uv_surface:
surface.surface_tool.add_uv((uv) * _voxel_set.uv_scale())
surface.surface_tool.add_vertex((top_right + Vector3.ONE) * Voxel.VoxelWorldSize)
if uv_surface:
surface.surface_tool.add_uv((uv + Vector2.DOWN) * _voxel_set.uv_scale())
surface.surface_tool.add_vertex((bottom_right + Vector3.RIGHT + Vector3.BACK) * Voxel.VoxelWorldSize)
Vector3.LEFT:
if uv_surface:
surface.surface_tool.add_uv((uv + Vector2.DOWN) * _voxel_set.uv_scale())
surface.surface_tool.add_vertex((bottom_left) * Voxel.VoxelWorldSize)
if uv_surface:
surface.surface_tool.add_uv((uv) * _voxel_set.uv_scale())
surface.surface_tool.add_vertex((top_left + Vector3.UP) * Voxel.VoxelWorldSize)
if uv_surface:
surface.surface_tool.add_uv((uv + Vector2.ONE) * _voxel_set.uv_scale())
surface.surface_tool.add_vertex((bottom_right + Vector3.BACK) * Voxel.VoxelWorldSize)
if uv_surface:
surface.surface_tool.add_uv((uv + Vector2.RIGHT) * _voxel_set.uv_scale())
surface.surface_tool.add_vertex((top_right + Vector3.UP + Vector3.BACK) * Voxel.VoxelWorldSize)
Vector3.UP:
if uv_surface:
surface.surface_tool.add_uv((uv + Vector2.DOWN) * _voxel_set.uv_scale())
surface.surface_tool.add_vertex((top_left + Vector3.UP + Vector3.BACK) * Voxel.VoxelWorldSize)
if uv_surface:
surface.surface_tool.add_uv((uv) * _voxel_set.uv_scale())
surface.surface_tool.add_vertex((bottom_left + Vector3.UP) * Voxel.VoxelWorldSize)
if uv_surface:
surface.surface_tool.add_uv((uv + Vector2.ONE) * _voxel_set.uv_scale())
surface.surface_tool.add_vertex((top_right + Vector3.ONE) * Voxel.VoxelWorldSize)
if uv_surface:
surface.surface_tool.add_uv((uv + Vector2.RIGHT) * _voxel_set.uv_scale())
surface.surface_tool.add_vertex((bottom_right + Vector3.RIGHT + Vector3.UP) * Voxel.VoxelWorldSize)
Vector3.DOWN:
if uv_surface:
surface.surface_tool.add_uv((uv + Vector2.DOWN) * _voxel_set.uv_scale())
surface.surface_tool.add_vertex((top_right + Vector3.RIGHT + Vector3.BACK) * Voxel.VoxelWorldSize)
if uv_surface:
surface.surface_tool.add_uv((uv) * _voxel_set.uv_scale())
surface.surface_tool.add_vertex((bottom_right + Vector3.RIGHT) * Voxel.VoxelWorldSize)
if uv_surface:
surface.surface_tool.add_uv((uv + Vector2.ONE) * _voxel_set.uv_scale())
surface.surface_tool.add_vertex((top_left + Vector3.BACK) * Voxel.VoxelWorldSize)
if uv_surface:
surface.surface_tool.add_uv((uv + Vector2.RIGHT) * _voxel_set.uv_scale())
surface.surface_tool.add_vertex((bottom_left) * Voxel.VoxelWorldSize)
Vector3.FORWARD:
if uv_surface:
surface.surface_tool.add_uv((uv + Vector2.ONE) * _voxel_set.uv_scale())
surface.surface_tool.add_vertex((bottom_right + Vector3.RIGHT) * Voxel.VoxelWorldSize)
if uv_surface:
surface.surface_tool.add_uv((uv + Vector2.RIGHT) * _voxel_set.uv_scale())
surface.surface_tool.add_vertex((top_right + Vector3.RIGHT + Vector3.UP) * Voxel.VoxelWorldSize)
if uv_surface:
surface.surface_tool.add_uv((uv + Vector2.DOWN) * _voxel_set.uv_scale())
surface.surface_tool.add_vertex((bottom_left) * Voxel.VoxelWorldSize)
if uv_surface:
surface.surface_tool.add_uv((uv) * _voxel_set.uv_scale())
surface.surface_tool.add_vertex((top_left + Vector3.UP) * Voxel.VoxelWorldSize)
Vector3.BACK:
if uv_surface:
surface.surface_tool.add_uv((uv + Vector2.RIGHT) * _voxel_set.uv_scale())
surface.surface_tool.add_vertex((top_right + Vector3.ONE) * Voxel.VoxelWorldSize)
if uv_surface:
surface.surface_tool.add_uv((uv + Vector2.ONE) * _voxel_set.uv_scale())
surface.surface_tool.add_vertex((bottom_right + Vector3.RIGHT + Vector3.BACK) * Voxel.VoxelWorldSize)
if uv_surface:
surface.surface_tool.add_uv((uv) * _voxel_set.uv_scale())
surface.surface_tool.add_vertex((top_left + Vector3.UP + Vector3.BACK) * Voxel.VoxelWorldSize)
if uv_surface:
surface.surface_tool.add_uv((uv + Vector2.DOWN) * _voxel_set.uv_scale())
surface.surface_tool.add_vertex((bottom_left + Vector3.BACK) * Voxel.VoxelWorldSize)
surface.index += 4
surface.surface_tool.add_index(surface.index - 4)
surface.surface_tool.add_index(surface.index - 3)
surface.surface_tool.add_index(surface.index - 2)
surface.surface_tool.add_index(surface.index - 3)
surface.surface_tool.add_index(surface.index - 1)
surface.surface_tool.add_index(surface.index - 2)
# Adds all the faces of a voxel to Mesh at given position and with voxel data
# voxel : Dictioanry<String, Variant> : voxel data to use
# grid : Vector3 : voxel grid position of voxel
func add_faces(voxel : Dictionary, grid : Vector3) -> void:
for face in Voxel.Faces:
add_face(voxel, face, grid)
|
