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.separate_tech = False
36 self.shared_resources = True
37 self.export_lods = True
39 def export(self, context, out_file, obj=None, progress=None):
41 obj = context.active_object
44 for c in obj.children:
46 if c.lod_index>=len(lods):
47 lods += [None]*(c.lod_index+1-len(lods))
50 from .outfile import open_output
51 out_file = open_output(out_file)
53 p1 = max(((v.co, v.co.length) for v in obj.data.vertices), key=lambda x:x[1])[0]
54 p2 = max(((v.co, (v.co-p1).length) for v in obj.data.vertices), key=lambda x:x[1])[0]
56 radius = (p1-p2).length/2
57 for v in obj.data.vertices:
60 center += d*(1-radius/d.length)/2
61 radius = (radius+d.length)/2
63 out_file.write("bounding_sphere_hint", center[0], center[1], center[2], radius)
66 prev_tech = (None, None)
67 for i, l in enumerate(lods):
69 out_file.begin("level_of_detail", i)
71 if i==0 or l.data.name!=prev_mesh:
72 mesh = self.export_object_mesh(context, out_file, l, progress)
73 prev_mesh = l.data.name
77 if l.material_slots and l.material_slots[0].material:
78 mat = l.material_slots[0].material.name
81 if l.technique!=prev_tech[0]:
83 if i==0 or not same_tech:
84 self.export_object_technique(l, out_file, i)
85 prev_tech = (l.technique, mat)
90 def export_object_mesh(self, context, out_file, obj, progress):
91 from .export_mesh import MeshExporter
92 mesh_export = MeshExporter()
93 for k, v in self.__dict__.items():
94 setattr(mesh_export, k, v)
97 if obj.lod_for_parent:
98 lod_index = obj.lod_index
100 if self.separate_mesh:
101 from .outfile import open_output
102 path, name = external_name(out_file, ".mesh", lod_index)
103 if self.shared_resources:
104 name = obj.data.name+".mesh"
105 mesh_out = open_output(os.path.join(path, name))
106 mesh = mesh_export.export(context, mesh_out, obj, progress)
107 out_file.write("mesh", '"{}"'.format(name))
109 out_file.begin("mesh")
110 mesh = mesh_export.export(context, out_file, obj, progress)
115 def export_object_technique(self, obj, out_file, lod_index):
117 if obj.material_slots:
118 material = obj.material_slots[0].material
120 from .outfile import open_output
121 path, name = external_name(out_file, ".tech", lod_index)
124 if obj.inherit_tech and material and (obj.override_material or material.texture_slots):
125 out_file.begin("technique")
126 out_file.begin("inherit", '"{}"'.format(obj.technique))
127 for slot in material.texture_slots:
128 if slot and slot.texture.type=="IMAGE":
129 name = image_name(slot.texture.image)
130 if slot.use_map_color_diffuse:
131 out_file.write("texture", '"diffuse_map"', '"{}"'.format(name))
132 elif slot.use_map_normal:
133 out_file.write("texture", '"normal_map"', '"{}"'.format(name))
134 if obj.override_material:
135 mat_name = material.name+".mat"
136 mat_out = open_output(os.path.join(path, mat_name))
137 self.export_material(material, mat_out)
138 out_file.write("material", '"surface"', '"{}"'.format(mat_name))
142 out_file.write("technique", '"{}"'.format(obj.technique))
143 elif self.separate_tech:
144 if self.shared_resources and material:
145 name = material.name+".tech"
146 tech_out = open_output(os.path.join(path, name))
147 self.export_technique_definition(material, tech_out)
148 out_file.write("technique", '"{}"'.format(name))
150 out_file.begin("technique")
151 self.export_technique_definition(material, out_file)
154 def export_technique_definition(self, material, out_file):
155 out_file.begin("pass", '""')
157 out_file.begin("material")
158 self.export_material(material, out_file)
161 if self.textures!="NONE":
163 for slot in material.texture_slots:
164 if slot and slot.texture.type=="IMAGE" and slot.use_map_color_diffuse:
165 diffuse_tex = slot.texture
169 out_file.begin("texunit", 0)
170 if self.textures=="INLINE":
171 out_file.begin("texture2d")
172 out_file.write("min_filter", "LINEAR")
173 out_file.write("storage", "RGBA", diffuse_tex.image.size[0], diffuse_tex.image.size[1])
175 for p in diffuse_tex.image.pixels:
176 texdata += "\\x%02X"%int(p*255)
178 out_file.write("raw_data", texdata)
181 out_file.write("texture", '"%s"'%image_name(diffuse_tex.image))
186 def export_material(self, mat, out_file):
187 cm = get_colormap(mat.srgb_colors)
188 if any((s and s.use_map_color_diffuse) for s in mat.texture_slots):
189 out_file.write("diffuse", 1.0, 1.0, 1.0, 1.0)
190 amb = cm(mat.ambient)
191 out_file.write("ambient", amb, amb, amb, 1.0)
193 diff = mat.diffuse_color*mat.diffuse_intensity
194 out_file.write("diffuse", cm(diff.r), cm(diff.g), cm(diff.b), 1.0)
195 amb = diff*mat.ambient
196 out_file.write("ambient", cm(amb.r), cm(amb.g), cm(amb.b), 1.0)
197 spec = mat.specular_color*mat.specular_intensity
198 out_file.write("specular", spec.r, spec.g, spec.b, 1.0)
199 out_file.write("shininess", mat.specular_hardness)