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.shared_tech = True
38 self.export_lods = True
40 def export(self, context, out_file, obj=None, progress=None):
42 obj = context.active_object
45 for c in obj.children:
47 if c.lod_index>=len(lods):
48 lods += [None]*(c.lod_index+1-len(lods))
51 from .outfile import open_output
52 out_file = open_output(out_file)
54 p1 = max(((v.co, v.co.length) for v in obj.data.vertices), key=lambda x:x[1])[0]
55 p2 = max(((v.co, (v.co-p1).length) for v in obj.data.vertices), key=lambda x:x[1])[0]
57 radius = (p1-p2).length/2
58 for v in obj.data.vertices:
61 center += d*(1-radius/d.length)/2
62 radius = (radius+d.length)/2
64 out_file.write("bounding_sphere_hint", center[0], center[1], center[2], radius)
67 prev_tech = (None, None)
68 for i, l in enumerate(lods):
70 out_file.begin("level_of_detail", i)
72 if i==0 or l.data.name!=prev_mesh:
73 mesh = self.export_object_mesh(context, out_file, l, progress)
74 prev_mesh = l.data.name
78 if l.material_slots and l.material_slots[0].material:
79 mat = l.material_slots[0].material.name
82 if l.technique!=prev_tech[0]:
84 if i==0 or not same_tech:
85 self.export_object_technique(l, mesh, out_file, i)
86 prev_tech = (l.technique, mat)
91 def export_object_mesh(self, context, out_file, obj, progress):
92 from .export_mesh import MeshExporter
93 mesh_export = MeshExporter()
94 for k, v in self.__dict__.items():
95 setattr(mesh_export, k, v)
98 if obj.lod_for_parent:
99 lod_index = obj.lod_index
101 if self.separate_mesh:
102 from .outfile import open_output
103 path, name = external_name(out_file, ".mesh", lod_index)
105 name = obj.data.name+".mesh"
106 mesh_out = open_output(os.path.join(path, name))
107 mesh = mesh_export.export(context, mesh_out, obj, progress)
108 out_file.write("mesh", '"{}"'.format(name))
110 out_file.begin("mesh")
111 mesh = mesh_export.export(context, out_file, obj, progress)
116 def export_object_technique(self, obj, mesh, out_file, lod_index):
118 if obj.material_slots:
119 material = obj.material_slots[0].material
121 from .outfile import open_output
122 path, name = external_name(out_file, ".tech", lod_index)
125 if obj.inherit_tech and material and (obj.override_material or material.texture_slots):
126 out_file.begin("technique")
127 out_file.begin("inherit", '"{}"'.format(obj.technique))
128 for slot in material.texture_slots:
129 if slot and slot.texture.type=="IMAGE":
130 name = image_name(slot.texture.image)
131 if slot.use_map_color_diffuse:
132 out_file.write("texture", '"diffuse_map"', '"{}"'.format(name))
133 elif slot.use_map_normal:
134 out_file.write("texture", '"normal_map"', '"{}"'.format(name))
135 if obj.override_material:
136 mat_name = material.name+".mat"
137 mat_out = open_output(os.path.join(path, mat_name))
138 self.export_material(material, mat_out)
139 out_file.write("material", '"surface"', '"{}"'.format(mat_name))
143 out_file.write("technique", '"{}"'.format(obj.technique))
144 elif self.separate_tech:
145 if self.shared_tech and material:
146 name = material.name+".tech"
147 tech_out = open_output(os.path.join(path, name))
148 self.export_technique_definition(material, mesh, tech_out)
149 out_file.write("technique", '"{}"'.format(name))
151 out_file.begin("technique")
152 self.export_technique_definition(material, obj.material_tex, mesh, out_file)
155 def export_technique_definition(self, material, material_tex, mesh, out_file):
156 out_file.begin("pass", '""')
159 out_file.begin("material")
160 out_file.write("diffuse", 1.0, 1.0, 1.0, 1.0)
162 out_file.begin("texunit", 0)
163 out_file.begin("texture2d")
164 out_file.write("min_filter", "NEAREST")
165 out_file.write("mag_filter", "NEAREST")
166 out_file.write("storage", "RGB", len(mesh.materials), 1)
168 for m in mesh.materials:
169 cm = get_colormap(m.srgb_colors)
170 color = [int(cm(c)*255) for c in m.diffuse_color*m.diffuse_intensity]
171 texdata += "\\x%02X\\x%02X\\x%02X"%tuple(color)
173 out_file.write("raw_data", texdata)
177 out_file.begin("material")
178 self.export_material(material, out_file)
181 if self.textures!="NONE":
183 for slot in material.texture_slots:
184 if slot and slot.texture.type=="IMAGE" and slot.use_map_color_diffuse:
185 diffuse_tex = slot.texture
189 out_file.begin("texunit", 0)
190 if self.textures=="INLINE":
191 out_file.begin("texture2d")
192 out_file.write("min_filter", "LINEAR")
193 out_file.write("storage", "RGBA", diffuse_tex.image.size[0], diffuse_tex.image.size[1])
195 for p in diffuse_tex.image.pixels:
196 texdata += "\\x%02X"%int(p*255)
198 out_file.write("raw_data", texdata)
201 out_file.write("texture", '"%s"'%image_name(diffuse_tex.image))
206 def export_material(self, mat, out_file):
207 cm = get_colormap(mat.srgb_colors)
208 if any((s and s.use_map_color_diffuse) for s in mat.texture_slots):
209 out_file.write("diffuse", 1.0, 1.0, 1.0, 1.0)
210 amb = cm(mat.ambient)
211 out_file.write("ambient", amb, amb, amb, 1.0)
213 diff = mat.diffuse_color*mat.diffuse_intensity
214 out_file.write("diffuse", cm(diff.r), cm(diff.g), cm(diff.b), 1.0)
215 amb = diff*mat.ambient
216 out_file.write("ambient", cm(amb.r), cm(amb.g), cm(amb.b), 1.0)
217 spec = mat.specular_color*mat.specular_intensity
218 out_file.write("specular", spec.r, spec.g, spec.b, 1.0)
219 out_file.write("shininess", mat.specular_hardness)