8 return 1.055*(l**(1/2.4))-0.055
10 def get_colormap(srgb):
19 return os.path.split(fp)[1]
23 def external_name(out_file, ext, index):
24 path, base = os.path.split(out_file.filename)
25 base = os.path.splitext(base)[0]
27 base += "_lod{}".format(index)
34 self.separate_mesh = False
35 self.shared_mesh = True
36 self.separate_tech = False
37 self.external_tech = True
38 self.shared_tech = True
39 self.export_lods = True
41 def export(self, context, out_file, objs=None, progress=None):
43 obj = context.active_object
48 for c in obj.children:
50 if c.lod_index>=len(lods):
51 lods += [None]*(c.lod_index+1-len(lods))
54 from .outfile import open_output
55 out_file = open_output(out_file)
57 p1 = max(((v.co, v.co.length) for v in obj.data.vertices), key=lambda x:x[1])[0]
58 p2 = max(((v.co, (v.co-p1).length) for v in obj.data.vertices), key=lambda x:x[1])[0]
60 radius = (p1-p2).length/2
61 for v in obj.data.vertices:
64 center += d*(1-radius/d.length)/2
65 radius = (radius+d.length)/2
67 out_file.write("bounding_sphere_hint", center[0], center[1], center[2], radius)
70 prev_tech = (None, None)
71 for i, l in enumerate(lods):
73 out_file.begin("level_of_detail", i)
76 if i==0 or l.data.name!=prev_mesh:
77 mesh = self.export_object_mesh(context, out_file, l, objs, progress)
78 prev_mesh = l.data.name
82 if l.material_slots and l.material_slots[0].material:
83 mat = l.material_slots[0].material.name
86 if self.external_tech and l.technique!=prev_tech[0]:
88 if i==0 or not same_tech:
89 self.export_object_technique(l, mesh, out_file, i)
90 prev_tech = (l.technique, mat)
95 def export_object_mesh(self, context, out_file, lod, objs, progress):
96 from .export_mesh import MeshExporter
97 mesh_export = MeshExporter()
98 for k, v in self.__dict__.items():
99 setattr(mesh_export, k, v)
102 if lod.lod_for_parent:
103 lod_index = lod.lod_index
105 if self.separate_mesh:
106 from .outfile import open_output
107 path, name = external_name(out_file, ".mesh", lod_index)
109 name = lod.data.name+".mesh"
110 mesh_out = open_output(os.path.join(path, name))
111 mesh = mesh_export.export(context, mesh_out, objs, progress)
112 out_file.write("mesh", '"{}"'.format(name))
114 out_file.begin("mesh")
115 mesh = mesh_export.export(context, out_file, objs, progress)
120 def export_object_technique(self, obj, mesh, out_file, lod_index):
122 if obj.material_slots:
123 material = obj.material_slots[0].material
125 from .outfile import open_output
126 path, name = external_name(out_file, ".tech", lod_index)
128 if self.external_tech and obj.technique:
129 if obj.inherit_tech and material and (obj.override_material or material.texture_slots):
130 out_file.begin("technique")
131 out_file.begin("inherit", '"{}"'.format(obj.technique))
132 for slot in material.texture_slots:
133 if slot and slot.texture.type=="IMAGE":
134 name = image_name(slot.texture.image)
135 if slot.use_map_color_diffuse:
136 out_file.write("texture", '"diffuse_map"', '"{}"'.format(name))
137 elif slot.use_map_normal:
138 out_file.write("texture", '"normal_map"', '"{}"'.format(name))
139 if obj.override_material:
140 mat_name = material.name+".mat"
141 mat_out = open_output(os.path.join(path, mat_name))
142 self.export_material(material, mat_out)
143 out_file.write("material", '"surface"', '"{}"'.format(mat_name))
147 out_file.write("technique", '"{}"'.format(obj.technique))
148 elif self.separate_tech:
149 if self.shared_tech and material:
150 name = material.name+".tech"
151 tech_out = open_output(os.path.join(path, name))
152 self.export_technique_definition(material, mesh, tech_out)
153 out_file.write("technique", '"{}"'.format(name))
155 out_file.begin("technique")
156 self.export_technique_definition(material, obj.material_tex, mesh, out_file)
159 def export_technique_definition(self, material, material_tex, mesh, out_file):
160 out_file.begin("pass", '""')
163 out_file.begin("material")
164 out_file.write("diffuse", 1.0, 1.0, 1.0, 1.0)
167 for u in mesh.uv_layers:
168 if u.name=="material_tex":
170 out_file.begin("texunit", index)
171 out_file.begin("texture2d")
172 out_file.write("min_filter", "NEAREST")
173 out_file.write("mag_filter", "NEAREST")
174 out_file.write("storage", "RGB", len(mesh.materials), 1)
176 for m in mesh.materials:
177 cm = get_colormap(m.srgb_colors)
178 color = [int(cm(c)*255) for c in m.diffuse_color*m.diffuse_intensity]
179 texdata += "\\x%02X\\x%02X\\x%02X"%tuple(color)
181 out_file.write("raw_data", texdata)
185 out_file.begin("material")
186 self.export_material(material, out_file)
189 if self.textures!="NONE":
190 for slot in material.texture_slots:
195 if tex.type!="IMAGE":
199 for u in mesh.uv_layers:
200 if u.name==slot.uv_layer:
203 index = mesh.uv_layers[0].unit
205 out_file.begin("texunit", index)
206 if self.textures=="INLINE":
207 out_file.begin("texture2d")
208 out_file.write("min_filter", "LINEAR")
209 out_file.write("storage", "RGBA", tex.image.size[0], tex.image.size[1])
211 for p in tex.image.pixels:
212 texdata += "\\x%02X"%int(p*255)
214 out_file.write("raw_data", texdata)
217 out_file.write("texture", '"%s"'%image_name(tex.image))
222 def export_material(self, mat, out_file):
223 cm = get_colormap(mat.srgb_colors)
224 if any((s and s.use_map_color_diffuse) for s in mat.texture_slots):
225 out_file.write("diffuse", 1.0, 1.0, 1.0, 1.0)
226 amb = cm(mat.ambient)
227 out_file.write("ambient", amb, amb, amb, 1.0)
229 diff = mat.diffuse_color*mat.diffuse_intensity
230 out_file.write("diffuse", cm(diff.r), cm(diff.g), cm(diff.b), 1.0)
231 amb = diff*mat.ambient
232 out_file.write("ambient", cm(amb.r), cm(amb.g), cm(amb.b), 1.0)
233 spec = mat.specular_color*mat.specular_intensity
234 out_file.write("specular", spec.r, spec.g, spec.b, 1.0)
235 out_file.write("shininess", mat.specular_hardness);