import bpy
import math
import mathutils
+import itertools
def make_edge_key(i1, i2):
return (min(i1, i2), max(i1, i2))
class Edge:
def __init__(self, edge):
if edge.__class__==Edge:
- self._edge = edge._edge
self.smooth = edge.smooth
else:
- self._edge = edge
self.smooth = False
if edge:
self.vertices = edge.vertices[:]
self.key = None
self.faces = []
- def __getattr__(self, attr):
- return getattr(self._edge, attr)
-
def check_smooth(self, limit):
if len(self.faces)!=2:
return
class Vertex:
def __init__(self, vertex):
if vertex.__class__==Vertex:
- self._vertex = vertex._vertex
self.uvs = vertex.uvs[:]
self.tan = vertex.tan
self.bino = vertex.bino
else:
- self._vertex = vertex
self.uvs = []
self.tan = None
self.bino = None
self.index = vertex.index
- self.co = vertex.co
- self.normal = vertex.normal
+ self.co = mathutils.Vector(vertex.co)
+ self.normal = mathutils.Vector(vertex.normal)
self.flag = False
self.edges = []
self.faces = []
self.groups = vertex.groups[:]
- def __getattr__(self, attr):
- return getattr(self._vertex, attr)
-
def __cmp__(self, other):
if other is None:
return 1
class VertexGroup:
def __init__(self, group):
- self._group = group
self.group = group.group
self.weight = group.weight
- def __getattr__(self, attr):
- return getattr(self._group, attr)
-
class Face:
def __init__(self, face):
- self._face = face
self.index = face.index
self.edges = []
+ self.edge_keys = face.edge_keys
self.vertices = face.vertices[:]
- self.uvs = []
+ self.loop_indices = face.loop_indices
+ self.normal = face.normal
+ self.use_smooth = face.use_smooth
+ self.material_index = face.material_index
self.flag = False
- def __getattr__(self, attr):
- return getattr(self._face, attr)
-
def __cmp__(self, other):
if other is None:
return 1
n = self.vertices.index(v)
return [(n+i)%len(self.vertices) for i in range(len(self.vertices))]
- def pivot_vertices(self, *vt):
- flags = [(v in vt) for v in self.vertices]
- l = len(self.vertices)
- for i in range(l):
- if flags[i] and not flags[(i+l-1)%l]:
- return self.vertices[i:]+self.vertices[:i]
+ def get_loop_index(self, v):
+ return self.loop_indices[self.vertices.index(v)]
def get_edge(self, v1, v2):
key = make_edge_key(v1.index, v2.index)
class UvLayer:
def __init__(self, arg):
if type(arg)==str:
- self._layer = None
self.name = arg
self.uvs = []
else:
- self._layer = arg
self.name = arg.name
- self.uvs = [d.uv for d in self.data]
+ self.uvs = [mathutils.Vector(d.uv) for d in arg.data]
self.unit = None
self.hidden = False
elif ext==".hidden":
self.hidden = True
- def __getattr__(self, attr):
- return getattr(self._layer, attr)
-
class Mesh:
def __init__(self, mesh):
- self._mesh = mesh
+ self.name = mesh.name
self.winding_test = mesh.winding_test
+ self.smoothing = mesh.smoothing
+ self.use_uv = mesh.use_uv
self.tbn_vecs = mesh.tbn_vecs
+ self.tbn_uvtex = mesh.tbn_uvtex
self.vertex_groups = mesh.vertex_groups
# Clone basic data
self.loops = mesh.loops[:]
self.materials = mesh.materials[:]
+ self.use_auto_smooth = mesh.use_auto_smooth
+ self.auto_smooth_angle = mesh.auto_smooth_angle
+
# Clone only the desired UV layers
- if self.use_uv=='NONE' or not mesh.uv_layers:
+ if mesh.use_uv=='NONE' or not mesh.uv_layers:
self.uv_layers = []
else:
self.uv_layers = [UvLayer(u) for u in mesh.uv_layers]
- self.uv_layers = sorted([u for u in self.uv_layers if not u.hidden], key=(lambda u: (u.unit or 1000, u.name)))
-
- if self.use_uv=='UNIT0':
- self.uv_layers = [self.uv_layers[0]]
# Assign texture unit numbers to UV layers that lack one
- next_unit = max((u.unit+1 for u in self.uv_layers if u.unit is not None), default=0)
- for u in self.uv_layers:
- if not u.unit:
- u.unit = next_unit
- next_unit += 1
+ missing_unit = [u for u in self.uv_layers if u.unit is None]
+ if missing_unit:
+ missing_unit = sorted(missing_unit, key=(lambda u: u.name))
+ used_units = [u.unit for u in self.uv_layers if u.unit is not None]
+ for u, n in zip(missing_unit, (i for i in itertools.count() if i not in used_units)):
+ u.unit = n
+
+ self.uv_layers = sorted(self.uv_layers, key=(lambda u: u.unit))
+
+ if mesh.use_uv=='UNIT0':
+ self.uv_layers = [self.uv_layers[0]]
+ if self.uv_layers[0].unit!=0:
+ self.uv_layers = []
# Rewrite links between elements to point to cloned data, or create links
# where they don't exist
v.edges.append(e)
# Store loose edges as lines
- if self.use_lines:
+ if mesh.use_lines:
self.lines = [Line(e) for e in self.edges if not e.faces]
else:
self.lines = []
self.vertex_sequence = []
- def __getattr__(self, attr):
- return getattr(self._mesh, attr)
-
def transform(self, matrix):
for v in self.vertices:
- v.co = matrix*v.co
+ v.co = matrix@v.co
def splice(self, other):
if len(self.uv_layers)!=len(other.uv_layers):
self.faces += other.faces
for f in self.faces[offset:]:
f.index += offset
- f.loop_start += loop_offset
- f.loop_indices = range(f.loop_start, f.loop_start+f.loop_total)
+ f.loop_indices = range(f.loop_indices.start+offset, f.loop_indices.stop+offset)
if other.materials:
f.material_index = material_map[f.material_index]
for g in v.groups:
g.group = group_index_map[g.group]
- def prepare_uv(self, obj, progress):
- if obj.material_tex and self.use_uv!='NONE':
- layer = UvLayer("material_tex")
+ def apply_material_map(self, material_map):
+ for m in self.materials:
+ if m.name not in material_map.material_names:
+ raise Exception("Material map is not compatible with Mesh")
- if self.use_uv=='UNIT0':
- self.uv_layers = [layer]
- layer.unit = 0
- else:
- self.uv_layers.append(layer)
- layer.unit = max((u.unit+1 for u in self.uv_layers if u.unit is not None), default=0)
+ if self.use_uv=='NONE':
+ return
- layer.uvs = [None]*len(self.loops)
- for f in self.faces:
- uv = mathutils.Vector(((f.material_index+0.5)/len(self.materials), 0.5))
- for i in f.loop_indices:
- layer.uvs[i] = uv
+ layer = UvLayer("material_map")
+ if self.use_uv=='UNIT0':
+ self.uv_layers = [layer]
+ layer.unit = 0
+ else:
+ self.uv_layers.append(layer)
+ used_units = [u.unit for u in self.uv_layers]
+ layer.unit = next(i for i in itertools.count() if i not in used_units)
+ self.uv_layers.sort(key=lambda u: u.unit)
+ layer.uvs = [(0.0, 0.0)]*len(self.loops)
+ for f in self.faces:
+ uv = material_map.get_material_uv(self.materials[f.material_index])
+ for i in f.loop_indices:
+ layer.uvs[i] = uv
+
+ def prepare_uv(self, progress):
# Form a list of UV layers referenced by materials with the array atlas
# property set
- array_uv_layers = [t.uv_layer for m in self.materials if m.array_atlas for t in m.texture_slots if t and t.texture_coords=='UV']
+ array_uv_layers = [] #[t.uv_layer for m in self.materials if m.array_atlas for t in m.texture_slots if t and t.texture_coords=='UV']
array_uv_layers = [u for u in self.uv_layers if u.name in array_uv_layers]
if array_uv_layers:
for i in f.loop_indices:
l.uvs[i] = mathutils.Vector((*l.uvs[i], layer))
- # Copy UVs from layers to faces
- for f in self.faces:
- for u in self.uv_layers:
- f.uvs.append([u.uvs[i] for i in f.loop_indices])
-
prog_count = len(self.uv_layers)
prog_step = 0
self.compute_tbn(tbn_layer_index, progress)
progress.pop_task()
prog_step = 2
+ else:
+ raise Exception("TBN UV layer not found")
# Split by the remaining UV layers
for i, u in enumerate(self.uv_layers):
progress.pop_task()
prog_step += 1
- # Copy UVs from faces to vertices
+ # Copy UVs from layers to vertices
for v in self.vertices:
if v.faces:
# All faces still connected to the vertex have the same UV value
f = v.faces[0]
- i = f.vertices.index(v)
- v.uvs = [u[i] for u in f.uvs]
+ i = f.get_loop_index(v)
+ v.uvs = [u.uvs[i] for u in self.uv_layers]
else:
v.uvs = [(0.0, 0.0)]*len(self.uv_layers)
return group
def find_uv_group(self, vertex, face, index):
- uv = face.uvs[index][face.vertices.index(vertex)]
+ layer = self.uv_layers[index]
+ uv = layer.uvs[face.get_loop_index(vertex)]
face.flag = True
group = [face]
for f in vertex.faces:
- if not f.flag and f.uvs[index][f.vertices.index(vertex)]==uv:
+ if not f.flag and layer.uvs[f.get_loop_index(vertex)]==uv:
f.flag = True
group.append(f)
for i, v in enumerate(self.vertices):
v.normal = mathutils.Vector()
for f in v.faces:
- fv = f.pivot_vertices(v)
- edge1 = fv[1].co-fv[0].co
- edge2 = fv[-1].co-fv[0].co
+ vi = f.pivot_vertex(v)
+ edge1 = f.vertices[vi[1]].co-v.co
+ edge2 = f.vertices[vi[-1]].co-v.co
if edge1.length and edge2.length:
# Use the angle between edges as a weighting factor. This gives
# more consistent normals on bends with an inequal number of
for e in self.edges:
e.key = make_edge_key(e.vertices[0].index, e.vertices[1].index)
- def drop_references(self):
- for v in self.vertices:
- v._vertex = None
- for g in v.groups:
- g._group = None
- for e in self.edges:
- e._edge = None
- for f in self.faces:
- f._face = None
- for u in self.uv_layers:
- u._layer = None
- self._mesh = None
-
-def create_mesh_from_object(context, obj, progress):
+def create_mesh_from_object(context, obj, progress, *, material_map=None):
if obj.type!="MESH":
raise Exception("Object is not a mesh")
if c.type=="MESH" and c.compound:
objs.append((c, m*c.matrix_local))
+ dg = context.evaluated_depsgraph_get()
+
mesh = None
- bmeshes = []
for o, m in objs:
- bmesh = o.to_mesh(context.scene, True, "PREVIEW")
- bmeshes.append(bmesh)
+ eval_obj = o.evaluated_get(dg)
+ bmesh = eval_obj.to_mesh()
# Object.to_mesh does not copy custom properties
bmesh.winding_test = o.data.winding_test
me = Mesh(bmesh)
me.transform(m)
+ for i, s in enumerate(eval_obj.material_slots):
+ if s.link=='OBJECT':
+ me.materials[i] = s.material
+
if mesh:
mesh.splice(me)
else:
mesh = me
+ mesh.name = obj.data.name
+
+ if material_map:
+ mesh.apply_material_map(material_map)
+
progress.set_task("Triangulating", 0.2, 0.3)
mesh.prepare_triangles(progress)
progress.set_task("Smoothing", 0.3, 0.5)
progress.set_task("Vertex groups", 0.5, 0.6)
mesh.prepare_vertex_groups(obj)
progress.set_task("Preparing UVs", 0.6, 0.8)
- mesh.prepare_uv(obj, progress)
+ mesh.prepare_uv(progress)
progress.set_task("Render sequence", 0.8, 1.0)
mesh.prepare_sequence(progress)
- # Discard the temporary Blender meshes after making sure there's no
- # references to the data
- mesh.drop_references()
- for m in bmeshes:
- bpy.data.meshes.remove(m)
-
progress.pop_task()
return mesh
projects / libs / gl.git / blobdiff