/
bakemyscan.py
183 lines (158 loc) · 7.86 KB
/
bakemyscan.py
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
"""
Reprocess one model to a lowpoly version
Examples:
blender -b -P bakemyscan.py model.obj model.fbx
blender -b -P bakemyscan.py model.obj model.fbx -Z
blender -b -P bakemyscan.py model.obj model.fbx -M MMGS -X 0.005
blender -b -P bakemyscan.py model.obj model.fbx -M INSTANT -X 4000
blender -b -P bakemyscan.py model.obj model.fbx -M QUADRIFLOW -X 3000
blender -b -P bakemyscan.py model.obj model.fbx -M MESHLAB -X 500
blender -b -P bakemyscan.py model.obj model.fbx -M ITERATIVE -X 1000
blender -b -P bakemyscan.py model.obj model.fbx -M DECIMATE -X 1000
blender -b -P bakemyscan.py model.obj model.fbx -M NAIVEQUADS -X 0.01
blender -b -P bakemyscan.py model.obj model.fbx -R 2048 --color albedo.png --normal nm.jpg --metallic metal.tif --roughness rough.jpeg --ao ambientOcc.jpg --displacement heightmap.PNG --emission emit.jpg --opacity alpha.png
"""
import bpy
import sys
import os
import argparse
import imghdr
def get_args():
"""Processes the command line arguments"""
argv = sys.argv[sys.argv.index("--") + 1:]
def arg_from_name(_parser, _name, _help):
parser.add_argument("-"+_name[0], "--" + _name, help=_help, type=str)
msg1 = 'Remeshing method: "MMGS", "INSTANT", "QUADRIFLOW", "MESHLAB", "DEIMATE", "ITERATIVE", "DECIMATE" (defaults to "ITERATIVE")'
msg2 = "Depends on chosen method: Number of faces or Relative Haussdorf (try 0.01 for MMGS) or Resolution (try 2500 for INSTANT and QUADRIFLOW) or Ratio (try 0.01 for NAIVEQUADS)"
parser = argparse.ArgumentParser(description="Remesh a scan to a lowpoly model in blender")
parser.prog = "blender -b -P /path/to/bakemyscan.py"
parser.add_argument("input", type=str, help="Input model (.fbx, .obj, .ply, .wrl, .x3d, .dae)")
parser.add_argument("output", type=str, help="Output model (.fbx, .obj, .ply)")
parser.add_argument("-Z", "--zip", action="store_true", help="Compress the files into a .zip archive", default=False)
parser.add_argument("-M", "--method", type=str, help=msg1, default="ITERATIVE")
parser.add_argument("-X", "--target", type=int, default=1500, help=msg2)
parser.add_argument("-R", "--resolution", type=int, default=1024, help="Output resolution")
arg_from_name(parser, "color", "Base Color")
arg_from_name(parser, "metallic", "Metallic")
arg_from_name(parser, "roughness", "Roughness")
arg_from_name(parser, "glossiness", "Glossiness")
arg_from_name(parser, "ao", "Ambient occlusion")
arg_from_name(parser, "normal", "Normal map")
arg_from_name(parser, "displacement", "Displacement map")
arg_from_name(parser, "emission", "Emission")
arg_from_name(parser, "opacity", "Opacity")
args = parser.parse_args(argv)
def check_valid_file(_file, _exts=None, _image=False, _can_create=False):
if _file is not None:
if not _can_create:
if not os.path.exists(_file):
parser.print_help()
print('ERROR: did not find "' + _file + '"')
sys.exit(1)
if _exts is not None:
if os.path.splitext(_file)[1].lower() not in _exts:
parser.print_help()
print('ERROR: invalid extension for "%s"' % _file)
sys.exit(2)
_file = os.path.abspath(_file)
if _image:
if imghdr.what(_file) is None:
parser.print_help()
print('Error: "%s" is not an image')
sys.exit(3)
if _can_create:
_dir = os.path.dirname(_file)
if not os.path.exists(_dir):
parser.print_help()
print('Error: "%s" is not a directory')
sys.exit(4)
return _file
args.input = check_valid_file(args.input, [".fbx", ".obj", ".ply", ".wrl", ".x3d", ".dae", ".stl"])
args.output = check_valid_file(args.output, [".fbx", ".obj", ".ply"], _can_create=True)
args.color = check_valid_file(args.color, _image=True)
args.metallic = check_valid_file(args.metallic, _image=True)
args.roughness = check_valid_file(args.roughness, _image=True)
args.glossiness = check_valid_file(args.glossiness, _image=True)
args.ao = check_valid_file(args.ao, _image=True)
args.normal = check_valid_file(args.normal, _image=True)
args.displacement = check_valid_file(args.displacement, _image=True)
args.emission = check_valid_file(args.emission, _image=True)
args.opacity = check_valid_file(args.opacity, _image=True)
if args.method not in ["MMGS", "INSTANT", "QUADRIFLOW", "MESHLAB", "DEIMATE", "ITERATIVE", "DECIMATE"]:
parser.print_help()
print('ERROR: invalid method name')
sys.exit(5)
if args.method == "MMGS" and bpy.types.Scene.executables["mmgs"] == "":
print("MMGS is not configured in the user preferences")
sys.exit(6)
if args.method == "INSTANT" and bpy.types.Scene.executables["instant"] == "":
print("Instant Meshes is not configured in the user preferences")
sys.exit(7)
if args.method == "QUADRIFLOW" and bpy.types.Scene.executables["quadriflow"] == "":
print("Quadriflow is not configured in the user preferences")
sys.exit(8)
if args.method == "MESHLAB" and bpy.types.Scene.executables["meshlabserver"] == "":
print("Meshlabserver is not configured in the user preferences")
sys.exit(9)
return args
if __name__ == "__main__":
#Parse the arguments
args = get_args()
#Setup
bpy.ops.object.select_all(action='SELECT')
bpy.ops.object.delete(use_global=False)
bpy.context.scene.render.engine = "CYCLES"
#Import
bpy.ops.bakemyscan.import_scan(filepath = args.input)
bpy.ops.bakemyscan.clean_object()
original = bpy.context.active_object
#Add a material
bpy.ops.bakemyscan.create_empty_material()
#Assign the textures
def assign(_slot_name, _texture):
if _texture is not None:
bpy.ops.bakemyscan.assign_texture(slot=_slot_name, filepath=_texture)
assign("albedo", args.color)
assign("metallic", args.metallic)
assign("roughness", args.roughness)
assign("glossiness", args.glossiness)
assign("ao", args.ao)
assign("normal", args.normal)
assign("height", args.displacement)
assign("emission", args.emission)
assign("opacity", args.opacity)
#Remesh
if args.method == "MMGS":
bpy.ops.bakemyscan.remesh_mmgs(hausd=args.target)
elif args.method == "INSTANT":
bpy.ops.bakemyscan.remesh_instant(facescount=args.target)
elif args.method == "QUADRIFLOW":
bpy.ops.bakemyscan.remesh_quadriflow(resolution=args.target)
elif args.method == "MESHLAB":
bpy.ops.bakemyscan.remesh_meshlab(facescount=args.target)
elif args.method == "ITERATIVE":
bpy.ops.bakemyscan.remesh_iterative(limit=args.target)
elif args.method == "NAIVEQUADS":
bpy.ops.bakemyscan.remesh_quads(ratio=args.target)
elif args.method == "DECIMATE":
bpy.ops.bakemyscan.remesh_decimate(limit=args.target)
#Unwrap and smooth
bpy.ops.bakemyscan.unwrap(method="smarter")
bpy.ops.object.shade_smooth()
#Bake
original.select=True
bpy.ops.bakemyscan.bake_textures(
resolution = args.resolution,
bake_albedo = args.color is not None,
bake_metallic = args.metallic is not None,
bake_roughness = args.roughness is not None or args.glossiness is not None,
bake_ao = args.ao is not None,
bake_surface = args.displacement is not None or args.normal is not None,
bake_geometry = True,
bake_emission = args.emission is not None,
bake_opacity = args.opacity is not None,
)
#Export
original.select = False
bpy.ops.bakemyscan.remove_all_but_selected()
bpy.ops.bakemyscan.export(filepath=args.output, compress=args.zip)