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, obj=None, progress=None):
43 obj = context.active_object
46 for c in obj.children:
48 if c.lod_index>=len(lods):
49 lods += [None]*(c.lod_index+1-len(lods))
52 from .outfile import open_output
53 out_file = open_output(out_file)
55 p1 = max(((v.co, v.co.length) for v in obj.data.vertices), key=lambda x:x[1])[0]
56 p2 = max(((v.co, (v.co-p1).length) for v in obj.data.vertices), key=lambda x:x[1])[0]
58 radius = (p1-p2).length/2
59 for v in obj.data.vertices:
62 center += d*(1-radius/d.length)/2
63 radius = (radius+d.length)/2
65 out_file.write("bounding_sphere_hint", center[0], center[1], center[2], radius)
68 prev_tech = (None, None)
69 for i, l in enumerate(lods):
71 out_file.begin("level_of_detail", i)
73 if i==0 or l.data.name!=prev_mesh:
74 mesh = self.export_object_mesh(context, out_file, l, progress)
75 prev_mesh = l.data.name
79 if l.material_slots and l.material_slots[0].material:
80 mat = l.material_slots[0].material.name
83 if self.external_tech and l.technique!=prev_tech[0]:
85 if i==0 or not same_tech:
86 self.export_object_technique(l, mesh, out_file, i)
87 prev_tech = (l.technique, mat)
92 def export_object_mesh(self, context, out_file, obj, progress):
93 from .export_mesh import MeshExporter
94 mesh_export = MeshExporter()
95 for k, v in self.__dict__.items():
96 setattr(mesh_export, k, v)
99 if obj.lod_for_parent:
100 lod_index = obj.lod_index
102 if self.separate_mesh:
103 from .outfile import open_output
104 path, name = external_name(out_file, ".mesh", lod_index)
106 name = obj.data.name+".mesh"
107 mesh_out = open_output(os.path.join(path, name))
108 mesh = mesh_export.export(context, mesh_out, obj, progress)
109 out_file.write("mesh", '"{}"'.format(name))
111 out_file.begin("mesh")
112 mesh = mesh_export.export(context, out_file, obj, progress)
117 def export_object_technique(self, obj, mesh, out_file, lod_index):
119 if obj.material_slots:
120 material = obj.material_slots[0].material
122 from .outfile import open_output
123 path, name = external_name(out_file, ".tech", lod_index)
125 if self.external_tech and obj.technique:
126 if obj.inherit_tech and material and (obj.override_material or material.texture_slots):
127 out_file.begin("technique")
128 out_file.begin("inherit", '"{}"'.format(obj.technique))
129 for slot in material.texture_slots:
130 if slot and slot.texture.type=="IMAGE":
131 name = image_name(slot.texture.image)
132 if slot.use_map_color_diffuse:
133 out_file.write("texture", '"diffuse_map"', '"{}"'.format(name))
134 elif slot.use_map_normal:
135 out_file.write("texture", '"normal_map"', '"{}"'.format(name))
136 if obj.override_material:
137 mat_name = material.name+".mat"
138 mat_out = open_output(os.path.join(path, mat_name))
139 self.export_material(material, mat_out)
140 out_file.write("material", '"surface"', '"{}"'.format(mat_name))
144 out_file.write("technique", '"{}"'.format(obj.technique))
145 elif self.separate_tech:
146 if self.shared_tech and material:
147 name = material.name+".tech"
148 tech_out = open_output(os.path.join(path, name))
149 self.export_technique_definition(material, mesh, tech_out)
150 out_file.write("technique", '"{}"'.format(name))
152 out_file.begin("technique")
153 self.export_technique_definition(material, obj.material_tex, mesh, out_file)
156 def export_technique_definition(self, material, material_tex, mesh, out_file):
157 out_file.begin("pass", '""')
160 out_file.begin("material")
161 out_file.write("diffuse", 1.0, 1.0, 1.0, 1.0)
164 for u in mesh.uv_layers:
165 if u.name=="material_tex":
167 out_file.begin("texunit", index)
168 out_file.begin("texture2d")
169 out_file.write("min_filter", "NEAREST")
170 out_file.write("mag_filter", "NEAREST")
171 out_file.write("storage", "RGB", len(mesh.materials), 1)
173 for m in mesh.materials:
174 cm = get_colormap(m.srgb_colors)
175 color = [int(cm(c)*255) for c in m.diffuse_color*m.diffuse_intensity]
176 texdata += "\\x%02X\\x%02X\\x%02X"%tuple(color)
178 out_file.write("raw_data", texdata)
182 out_file.begin("material")
183 self.export_material(material, out_file)
186 if self.textures!="NONE":
187 for slot in material.texture_slots:
192 if tex.type!="IMAGE":
196 for u in mesh.uv_layers:
197 if u.name==slot.uv_layer:
200 index = mesh.uv_layers[0].unit
202 out_file.begin("texunit", index)
203 if self.textures=="INLINE":
204 out_file.begin("texture2d")
205 out_file.write("min_filter", "LINEAR")
206 out_file.write("storage", "RGBA", tex.image.size[0], tex.image.size[1])
208 for p in tex.image.pixels:
209 texdata += "\\x%02X"%int(p*255)
211 out_file.write("raw_data", texdata)
214 out_file.write("texture", '"%s"'%image_name(tex.image))
219 def export_material(self, mat, out_file):
220 cm = get_colormap(mat.srgb_colors)
221 if any((s and s.use_map_color_diffuse) for s in mat.texture_slots):
222 out_file.write("diffuse", 1.0, 1.0, 1.0, 1.0)
223 amb = cm(mat.ambient)
224 out_file.write("ambient", amb, amb, amb, 1.0)
226 diff = mat.diffuse_color*mat.diffuse_intensity
227 out_file.write("diffuse", cm(diff.r), cm(diff.g), cm(diff.b), 1.0)
228 amb = diff*mat.ambient
229 out_file.write("ambient", cm(amb.r), cm(amb.g), cm(amb.b), 1.0)
230 spec = mat.specular_color*mat.specular_intensity
231 out_file.write("specular", spec.r, spec.g, spec.b, 1.0)
232 out_file.write("shininess", mat.specular_hardness);