├── pyvox ├── __init__.py ├── utils.py ├── LICENSE ├── writer.py ├── models.py ├── defaultpalette.py └── parser.py ├── README.md ├── __init__.py ├── writer.py └── LICENSE /pyvox/__init__.py: -------------------------------------------------------------------------------- 1 | __version__ = '0.1' 2 | -------------------------------------------------------------------------------- /pyvox/utils.py: -------------------------------------------------------------------------------- 1 | def chunks(l, n): 2 | """Yield successive n-sized chunks from l.""" 3 | for i in range(0, len(l), n): 4 | yield l[i:i + n] 5 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # voxwriter 2 | Blender 2.8 addon to export to the MagicaVoxel .vox format 3 | 4 | Exports the selected object to a .vox and optionally creates a palette 5 | 6 | ### Installation 7 | First download the latest release zip 8 | 9 | To install, click "Install..." in Blender Preferences > Add-ons and select the zip. 10 | -------------------------------------------------------------------------------- /pyvox/LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2020 Gunnar Aastrand Grimnes 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /pyvox/writer.py: -------------------------------------------------------------------------------- 1 | from struct import pack 2 | 3 | 4 | class VoxWriter(object): 5 | 6 | def __init__(self, filename, vox): 7 | self.filename = filename 8 | self.vox = vox 9 | 10 | def _chunk(self, id, content, chunks=[]): 11 | 12 | res = b'' 13 | for c in chunks: 14 | res += self._chunk(*c) 15 | 16 | return pack('4sii', id, len(content), len(res)) + content + res 17 | 18 | def _matflags(self, props): 19 | flags = 0 20 | res = b'' 21 | for b,field in [ (0, 'plastic'), 22 | (1, 'roughness'), 23 | (2, 'specular'), 24 | (3, 'IOR'), 25 | (4, 'attenuation'), 26 | (5, 'power'), 27 | (6, 'glow'), 28 | (7, 'isTotalPower') ]: 29 | if field in props: 30 | flags |= 1< Export > MagicaVoxel (.vox)", 8 | "description": "Export to MagicaVoxel .vox", 9 | "category": "Export"} 10 | 11 | import bpy 12 | from bpy_extras.io_utils import ExportHelper 13 | from bpy.props import StringProperty, BoolProperty, IntProperty, EnumProperty 14 | from bpy.types import Operator 15 | 16 | class ExportSomeData(Operator, ExportHelper): 17 | """Export the selected object to a MagicaVoxel .vox""" 18 | bl_idname = "export_vox.some_data" 19 | bl_label = "MagicaVoxel (.vox)" 20 | 21 | # ExportHelper mixin class uses this 22 | filename_ext = ".vox" 23 | 24 | filter_glob: StringProperty( 25 | default="*.vox", 26 | options={'HIDDEN'}, 27 | maxlen=255, # Max internal buffer length, longer would be clamped. 28 | ) 29 | 30 | # List of operator properties, the attributes will be assigned 31 | # to the class instance from the operator settings before calling. 32 | voxel_detail: IntProperty( 33 | name="Voxel Detail", 34 | description="Voxel Detail", 35 | default=32, 36 | ) 37 | use_default_palette: BoolProperty( 38 | name="Use default palette", 39 | description="Use default palette", 40 | default=False, 41 | ) 42 | def execute(self, context): 43 | from .writer import voxelize 44 | print("running voxelize...") 45 | voxelize(context.active_object, self.filepath, vox_detail=max(0,min(126,self.voxel_detail)), use_default_palette=self.use_default_palette) 46 | return {'FINISHED'} 47 | 48 | 49 | # Only needed if you want to add into a dynamic menu 50 | def menu_func_export(self, context): 51 | self.layout.operator(ExportSomeData.bl_idname, text="MagicaVoxel (.vox)") 52 | 53 | 54 | def register(): 55 | bpy.utils.register_class(ExportSomeData) 56 | bpy.types.TOPBAR_MT_file_export.append(menu_func_export) 57 | 58 | 59 | def unregister(): 60 | bpy.utils.unregister_class(ExportSomeData) 61 | bpy.types.TOPBAR_MT_file_export.remove(menu_func_export) 62 | 63 | 64 | if __name__ == "__main__": 65 | register() 66 | 67 | # test call 68 | bpy.ops.export_vox.some_data('INVOKE_DEFAULT') 69 | -------------------------------------------------------------------------------- /pyvox/models.py: -------------------------------------------------------------------------------- 1 | from collections import namedtuple 2 | 3 | from .defaultpalette import default_palette 4 | from .utils import chunks 5 | 6 | Size = namedtuple('Size', 'x y z') 7 | Color = namedtuple('Color', 'r g b a') 8 | Voxel = namedtuple('Voxel', 'x y z c') 9 | Model = namedtuple('Model', 'size voxels') 10 | Material = namedtuple('Material', 'id type weight props') 11 | 12 | def get_default_palette(): 13 | return [ Color( *tuple(i.to_bytes(4,'little')) ) for i in default_palette ] 14 | 15 | 16 | class Vox(object): 17 | 18 | def __init__(self, models, palette=None, materials=None): 19 | self.models = models 20 | self.default_palette = not palette 21 | self._palette = palette or get_default_palette() 22 | self.materials = materials or [] 23 | 24 | @property 25 | def palette(self): 26 | return self._palette 27 | 28 | @palette.setter 29 | def palette(self, val): 30 | self._palette = val 31 | self.default_palette = False 32 | 33 | def to_dense_rgba(self, model_idx=0): 34 | 35 | import numpy as np 36 | m = self.models[model_idx] 37 | res = np.zeros(( m.size.y, m.size.z, m.size.x, 4 ), dtype='B') 38 | 39 | for v in m.voxels: 40 | res[v.y, m.size.z-v.z-1, v.x] = self.palette[v.c] 41 | 42 | return res 43 | 44 | def to_dense(self, model_idx=0): 45 | 46 | import numpy as np 47 | m = self.models[model_idx] 48 | res = np.zeros(( m.size.y, m.size.z, m.size.x ), dtype='B') 49 | 50 | for v in m.voxels: 51 | res[v.y, m.size.z-v.z-1, v.x] = v.c 52 | 53 | return res 54 | 55 | def __str__(self): 56 | return 'Vox(%s)'%(self.models) 57 | 58 | @staticmethod 59 | def from_dense(a, black=[0,0,0]): 60 | 61 | palette = None 62 | 63 | if len(a.shape) == 4: 64 | from PIL import Image 65 | import numpy as np 66 | 67 | mask = np.all(a == np.array([[black]]), axis=3) 68 | 69 | x,y,z,_ = a.shape 70 | 71 | # color index 0 is reserved for empty, so we get 255 colors 72 | img = Image.fromarray(a.reshape(x,y*z,3)).quantize(255) 73 | palette = img.getpalette() 74 | palette = [ Color(0,0,0,0) ] + [ Color(*c, 255) for c in chunks(palette, 3) ] 75 | a = np.asarray(img, dtype='B').reshape(x,y,z).copy() + 1 76 | a[mask] = 0 77 | 78 | 79 | if len(a.shape) != 3: raise Exception("I expect a 4 or 3 dimensional matrix") 80 | 81 | y,z,x = a.shape 82 | 83 | nz = a.nonzero() 84 | 85 | voxels = [ Voxel( nz[2][i], nz[0][i], z-nz[1][i]-1, a[nz[0][i], nz[1][i], nz[2][i]] ) for i in range(nz[0].shape[0]) ] 86 | 87 | return Vox([ Model(Size(x,y,z), voxels)], palette) 88 | -------------------------------------------------------------------------------- /pyvox/defaultpalette.py: -------------------------------------------------------------------------------- 1 | 2 | default_palette = [ 3 | 0x00000000, 0xffffffff, 0xffccffff, 0xff99ffff, 0xff66ffff, 0xff33ffff, 0xff00ffff, 0xffffccff, 0xffccccff, 0xff99ccff, 0xff66ccff, 0xff33ccff, 0xff00ccff, 0xffff99ff, 0xffcc99ff, 0xff9999ff, 4 | 0xff6699ff, 0xff3399ff, 0xff0099ff, 0xffff66ff, 0xffcc66ff, 0xff9966ff, 0xff6666ff, 0xff3366ff, 0xff0066ff, 0xffff33ff, 0xffcc33ff, 0xff9933ff, 0xff6633ff, 0xff3333ff, 0xff0033ff, 0xffff00ff, 5 | 0xffcc00ff, 0xff9900ff, 0xff6600ff, 0xff3300ff, 0xff0000ff, 0xffffffcc, 0xffccffcc, 0xff99ffcc, 0xff66ffcc, 0xff33ffcc, 0xff00ffcc, 0xffffcccc, 0xffcccccc, 0xff99cccc, 0xff66cccc, 0xff33cccc, 6 | 0xff00cccc, 0xffff99cc, 0xffcc99cc, 0xff9999cc, 0xff6699cc, 0xff3399cc, 0xff0099cc, 0xffff66cc, 0xffcc66cc, 0xff9966cc, 0xff6666cc, 0xff3366cc, 0xff0066cc, 0xffff33cc, 0xffcc33cc, 0xff9933cc, 7 | 0xff6633cc, 0xff3333cc, 0xff0033cc, 0xffff00cc, 0xffcc00cc, 0xff9900cc, 0xff6600cc, 0xff3300cc, 0xff0000cc, 0xffffff99, 0xffccff99, 0xff99ff99, 0xff66ff99, 0xff33ff99, 0xff00ff99, 0xffffcc99, 8 | 0xffcccc99, 0xff99cc99, 0xff66cc99, 0xff33cc99, 0xff00cc99, 0xffff9999, 0xffcc9999, 0xff999999, 0xff669999, 0xff339999, 0xff009999, 0xffff6699, 0xffcc6699, 0xff996699, 0xff666699, 0xff336699, 9 | 0xff006699, 0xffff3399, 0xffcc3399, 0xff993399, 0xff663399, 0xff333399, 0xff003399, 0xffff0099, 0xffcc0099, 0xff990099, 0xff660099, 0xff330099, 0xff000099, 0xffffff66, 0xffccff66, 0xff99ff66, 10 | 0xff66ff66, 0xff33ff66, 0xff00ff66, 0xffffcc66, 0xffcccc66, 0xff99cc66, 0xff66cc66, 0xff33cc66, 0xff00cc66, 0xffff9966, 0xffcc9966, 0xff999966, 0xff669966, 0xff339966, 0xff009966, 0xffff6666, 11 | 0xffcc6666, 0xff996666, 0xff666666, 0xff336666, 0xff006666, 0xffff3366, 0xffcc3366, 0xff993366, 0xff663366, 0xff333366, 0xff003366, 0xffff0066, 0xffcc0066, 0xff990066, 0xff660066, 0xff330066, 12 | 0xff000066, 0xffffff33, 0xffccff33, 0xff99ff33, 0xff66ff33, 0xff33ff33, 0xff00ff33, 0xffffcc33, 0xffcccc33, 0xff99cc33, 0xff66cc33, 0xff33cc33, 0xff00cc33, 0xffff9933, 0xffcc9933, 0xff999933, 13 | 0xff669933, 0xff339933, 0xff009933, 0xffff6633, 0xffcc6633, 0xff996633, 0xff666633, 0xff336633, 0xff006633, 0xffff3333, 0xffcc3333, 0xff993333, 0xff663333, 0xff333333, 0xff003333, 0xffff0033, 14 | 0xffcc0033, 0xff990033, 0xff660033, 0xff330033, 0xff000033, 0xffffff00, 0xffccff00, 0xff99ff00, 0xff66ff00, 0xff33ff00, 0xff00ff00, 0xffffcc00, 0xffcccc00, 0xff99cc00, 0xff66cc00, 0xff33cc00, 15 | 0xff00cc00, 0xffff9900, 0xffcc9900, 0xff999900, 0xff669900, 0xff339900, 0xff009900, 0xffff6600, 0xffcc6600, 0xff996600, 0xff666600, 0xff336600, 0xff006600, 0xffff3300, 0xffcc3300, 0xff993300, 16 | 0xff663300, 0xff333300, 0xff003300, 0xffff0000, 0xffcc0000, 0xff990000, 0xff660000, 0xff330000, 0xff0000ee, 0xff0000dd, 0xff0000bb, 0xff0000aa, 0xff000088, 0xff000077, 0xff000055, 0xff000044, 17 | 0xff000022, 0xff000011, 0xff00ee00, 0xff00dd00, 0xff00bb00, 0xff00aa00, 0xff008800, 0xff007700, 0xff005500, 0xff004400, 0xff002200, 0xff001100, 0xffee0000, 0xffdd0000, 0xffbb0000, 0xffaa0000, 18 | 0xff880000, 0xff770000, 0xff550000, 0xff440000, 0xff220000, 0xff110000, 0xffeeeeee, 0xffdddddd, 0xffbbbbbb, 0xffaaaaaa, 0xff888888, 0xff777777, 0xff555555, 0xff444444, 0xff222222, 0xff111111 19 | ] 20 | -------------------------------------------------------------------------------- /pyvox/parser.py: -------------------------------------------------------------------------------- 1 | from struct import unpack_from as unpack, calcsize 2 | import logging 3 | 4 | from .models import Vox, Size, Voxel, Color, Model, Material 5 | 6 | log = logging.getLogger(__name__) 7 | 8 | class ParsingException(Exception): pass 9 | 10 | def bit(val, offset): 11 | mask = 1 << offset 12 | return(val & mask) 13 | 14 | class Chunk(object): 15 | def __init__(self, id, content=None, chunks=None): 16 | self.id = id 17 | self.content = content or b'' 18 | self.chunks = chunks or [] 19 | 20 | if id == b'MAIN': 21 | if len(self.content): raise ParsingException('Non-empty content for main chunk') 22 | elif id == b'PACK': 23 | self.models = unpack('i', content)[0] 24 | elif id == b'SIZE': 25 | self.size = Size(*unpack('iii', content)) 26 | elif id == b'XYZI': 27 | n = unpack('i', content)[0] 28 | log.debug('xyzi block with %d voxels (len %d)', n, len(content)) 29 | self.voxels = [] 30 | self.voxels = [ Voxel(*unpack('BBBB', content, 4+4*i)) for i in range(n) ] 31 | elif id == b'RGBA': 32 | self.palette = [ Color(*unpack('BBBB', content, 4*i)) for i in range(255) ] 33 | # Docs say: color [0-254] are mapped to palette index [1-255] 34 | # hmm 35 | # self.palette = [ Color(0,0,0,0) ] + [ Color(*unpack('BBBB', content, 4*i)) for i in range(255) ] 36 | elif id == b'MATT': 37 | _id, _type, weight, flags = unpack('iifi', content) 38 | props = {} 39 | offset = 16 40 | for b,field in [ (0, 'plastic'), 41 | (1, 'roughness'), 42 | (2, 'specular'), 43 | (3, 'IOR'), 44 | (4, 'attenuation'), 45 | (5, 'power'), 46 | (6, 'glow'), 47 | (7, 'isTotalPower') ]: 48 | if bit(flags, b) and b<7: # no value for 7 / isTotalPower 49 | props[field] = unpack('f', content, offset) 50 | offset += 4 51 | 52 | self.material = Material(_id, _type, weight, props) 53 | 54 | else: 55 | raise ParsingException('Unknown chunk type: %s'%self.id) 56 | 57 | class VoxParser(object): 58 | 59 | def __init__(self, filename): 60 | with open(filename, 'rb') as f: 61 | self.content = f.read() 62 | 63 | self.offset = 0 64 | 65 | def unpack(self, fmt): 66 | r = unpack(fmt, self.content, self.offset) 67 | self.offset += calcsize(fmt) 68 | return r 69 | 70 | def _parseChunk(self): 71 | 72 | _id, N, M = self.unpack('4sii') 73 | 74 | log.debug("Found chunk id %s / len %s / children %s", _id, N, M) 75 | 76 | content = self.unpack('%ds'%N)[0] 77 | 78 | start = self.offset 79 | chunks = [ ] 80 | while self.offset= len(slots) or material_index == -1: 37 | return [0.8, 0.8, 0.8] 38 | material = slots[obj.data.polygons[polygon_index].material_index].material 39 | image = get_material_image(material) 40 | # if no texture exists 41 | if not image: 42 | color = get_material_color(material) 43 | return [color[0], color[1], color[2]] 44 | 45 | # get UV map vertices indices 46 | verticesIndices = obj.data.polygons[polygon_index].vertices 47 | p1, p2, p3 = [obj.data.vertices[verticesIndices[i]].co for i in range(3)] 48 | uvMap = obj.data.uv_layers[obj.data.uv_layers.keys()[0]] 49 | uv1, uv2, uv3 = [uvMap.data[obj.data.polygons[polygon_index].loop_indices[i]].uv for i in range(3)] 50 | uv1 = Vector((uv1[0], uv1[1], 0)) 51 | uv2 = Vector((uv2[0], uv2[1], 0)) 52 | uv3 = Vector((uv3[0], uv3[1], 0)) 53 | transformed_point = barycentric_transform( location, p1, p2, p3, uv1, uv2, uv3 ) 54 | 55 | width = image.size[0] 56 | height = image.size[1] 57 | 58 | uv = Vector((transformed_point.x % 1.0, transformed_point.y % 1.0)) 59 | 60 | coord = ( 61 | round((uv[0] % 1.0) * width-1), 62 | round((uv[1] % 1.0) * height-1), 63 | ) 64 | pindex = int(((width * int(coord[1])) + int(coord[0])) * 4) 65 | 66 | # store images as tuples to avoid recreating the object each loop 67 | if image.name not in image_tuples: 68 | print('Adding image', image.name) 69 | image_tuples[image.name] = tuple(image.pixels) 70 | color = image_tuples[image.name][pindex:pindex+4] 71 | 72 | return color 73 | 74 | def get_material_image(material): 75 | try: 76 | if material: 77 | socket = material.node_tree.nodes.get('Principled BSDF',None) 78 | if socket: 79 | for link1 in socket.inputs['Base Color'].links: 80 | link_node = link1.from_node 81 | if 'image' in dir(link_node): 82 | return link_node.image 83 | else: 84 | if link_node.name == 'Mix': 85 | for input in link_node.inputs: 86 | if input.is_linked: 87 | for link2 in input.links: 88 | if 'image' in dir(link2.from_node): 89 | return link2.from_node.image 90 | except: 91 | print(traceback.format_exc()) 92 | return None 93 | return None 94 | 95 | def try_add_color_to_palette(new_color, palette, color_threshold=24): 96 | if len(palette) >= 254: 97 | return palette, nearest_color_index(new_color, palette) 98 | for color in palette: 99 | if color_distance(new_color, color) <= color_threshold: 100 | return palette, nearest_color_index(new_color, palette) 101 | palette.append(new_color) 102 | return palette, (len(palette)-1) 103 | 104 | def get_material_color(material): 105 | if material: 106 | if material.name: 107 | if material.use_nodes: 108 | for n in material.node_tree.nodes: 109 | if n.type == 'BSDF_PRINCIPLED': 110 | return n.inputs[0].default_value 111 | for input in n.inputs: 112 | if input.name == 'Base Color': 113 | color = input.default_value 114 | return (color[0], color[1], color[2], color[3]) 115 | return (0.8, 0.8, 0.8, 1.0) 116 | 117 | def get_closest_point(p, obj, max_dist=1.84467e+19): 118 | # max_dist = 1.84467e+19 119 | result, location, normal, face = obj.closest_point_on_mesh(p, distance=max_dist) 120 | return result, location, normal, face 121 | 122 | def distance(c1, c2): 123 | (r1,g1,b1) = c1 124 | (r2,g2,b2) = c2 125 | return math.sqrt((r1 - r2)**2 + (g1 - g2) ** 2 + (b1 - b2) **2) 126 | 127 | def color_distance(c1, c2): 128 | (r1,g1,b1) = c1.r, c1.g, c1.b 129 | (r2,g2,b2) = c2.r, c2.g, c2.b 130 | return math.sqrt((r1 - r2)**2 + (g1 - g2) ** 2 + (b1 - b2) **2) 131 | 132 | def find_center(o): 133 | vcos = [ o.matrix_world @ v.co for v in o.data.vertices ] 134 | findCenter = lambda l: ( max(l) + min(l) ) / 2 135 | 136 | x,y,z = [ [ v[i] for v in vcos ] for i in range(3) ] 137 | center = [ findCenter(axis) for axis in [x,y,z] ] 138 | 139 | return tuple(center) 140 | 141 | def find_bounds(o): 142 | vcos = [ o.matrix_world @ v.co for v in o.data.vertices ] 143 | findCenter = lambda l: ( max(l) + min(l) ) / 2 144 | 145 | x,y,z = [ [ v[i] for v in vcos ] for i in range(3) ] 146 | bbox_min = [ min(axis) for axis in [x,y,z] ] 147 | bbox_max = [ max(axis) for axis in [x,y,z] ] 148 | 149 | return tuple(bbox_min), tuple(bbox_max) 150 | 151 | def nearest_color(color, palette): 152 | colors_dict = {} 153 | for i in range(len(palette)): 154 | colors_dict[i] = palette[i] 155 | closest_colors = sorted(colors_dict, key=lambda point: color_distance(color, colors_dict[point])) 156 | return colors_dict[closest_colors[0]] 157 | 158 | def nearest_color_index(color, palette): 159 | color = nearest_color(color, palette) 160 | return palette.index(color) 161 | 162 | def voxelize(obj, file_path, vox_detail=32, use_default_palette=False): 163 | global image_tuples 164 | image_tuples = {} 165 | last_time = time.time() 166 | 167 | print('Converting to vox') 168 | source = obj 169 | source_name = obj.name 170 | 171 | bpy.ops.object.select_all(action='DESELECT') 172 | source.select_set(True) 173 | 174 | bpy.ops.object.duplicate_move(OBJECT_OT_duplicate={"linked":False, "mode":"TRANSLATION"}) 175 | bpy.context.object.name = source_name+'_voxelized' 176 | bpy.ops.object.transform_apply(location=True, rotation=True, scale=True) 177 | bpy.ops.object.convert(target='MESH') 178 | 179 | target_name = bpy.context.object.name 180 | target = bpy.data.objects[target_name] 181 | TriangulateMesh(target) 182 | 183 | # voxelize 184 | 185 | vox_size = max(target.dimensions) / vox_detail 186 | half_size = vox_size * 0.5 187 | bbox_min, bbox_max = find_bounds(target) 188 | 189 | a = np.zeros((vox_detail, vox_detail, vox_detail), dtype=int) 190 | 191 | dg = bpy.context.evaluated_depsgraph_get() 192 | orig_scene = bpy.context.scene.evaluated_get(dg) 193 | 194 | if not use_default_palette: 195 | palette = [] 196 | else: 197 | palette = get_default_palette()[1:256] 198 | print('Default palette length', len(palette)) 199 | 200 | for x1 in range(0,vox_detail): 201 | print(str(int(x1 / vox_detail * 100))+'%...') 202 | x = bbox_min[0] + x1 * vox_size + half_size 203 | if x > bbox_max[0] + vox_size: 204 | break 205 | for y1 in range(0,vox_detail): 206 | y = bbox_min[1] + y1 * vox_size + half_size 207 | if y > bbox_max[1] + vox_size: 208 | break 209 | for z1 in range(0,vox_detail): 210 | z = bbox_min[2] + z1 * vox_size + half_size 211 | if z > bbox_max[2] + vox_size: 212 | break 213 | inside, inside_location, inside_normal, inside_face = get_closest_point(Vector((x,y,z)), target, max_dist=half_size*1.5) 214 | if inside: 215 | inside = (inside_location[0], inside_location[1], inside_location[2]) 216 | vox_min = (x-half_size,y-half_size,z-half_size) 217 | vox_max = (x+half_size,y+half_size,z+half_size) 218 | if inside > vox_min and inside < vox_max: 219 | location = (inside_location[0] + inside_normal[0] * 0.001, 220 | inside_location[1] + inside_normal[1] * 0.001, 221 | inside_location[2] + inside_normal[2] * 0.001) 222 | normal = (-inside_normal[0], -inside_normal[1], -inside_normal[2]) 223 | color = get_color_from_geometry(target, location, normal, orig_scene=orig_scene, location=inside_location, polygon_index=inside_face) 224 | if color: 225 | if len(color) == 4 and color[3] < 0.1: 226 | continue 227 | color = Color(int(color[0]*255), int(color[1]*255), int(color[2]*255), 255) 228 | threshold = max(7, min(12, len(palette) * 0.65)) 229 | palette, color_index = try_add_color_to_palette(color, palette, color_threshold=threshold) 230 | #color_index = nearest_color_index(color, palette[1:]) 231 | a[y1,(vox_detail-1)-z1,x1] = color_index+1 232 | 233 | vox = Vox.from_dense(a) 234 | print('Palette length', len(palette)) 235 | vox.palette = palette 236 | VoxWriter(file_path, vox).write() 237 | print('100%... Exported to', file_path) 238 | 239 | # delete temporary target 240 | bpy.ops.object.select_all(action='DESELECT') 241 | target.select_set(True) 242 | bpy.ops.object.delete() 243 | bpy.ops.object.select_all(action='DESELECT') 244 | source.select_set(True) 245 | bpy.context.view_layer.objects.active = source 246 | print('Took', int(time.time() - last_time), 'seconds') 247 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | --------------------------------------------------------------------------------