import os
+import mathutils
def linear_to_srgb(l):
if l<0.0031308:
else:
return 1.055*(l**(1/2.4))-0.055
+def image_name(i):
+ fp = i.filepath
+ if fp:
+ return os.path.split(fp)[1]
+ else:
+ return i.name
+
+def external_name(out_file, ext, index):
+ path, base = os.path.split(out_file.filename)
+ base = os.path.splitext(base)[0]
+ if index>0:
+ base += "_lod{}".format(index)
+ return path, base+ext
+
class ObjectExporter:
def __init__(self):
self.srgb_colors = True
self.textures = "REF"
self.separate_mesh = False
+ self.shared_mesh = True
+ self.separate_tech = False
+ self.external_tech = True
+ self.shared_tech = True
+ self.export_lods = True
+
+ def export(self, context, out_file, objs=None, progress=None):
+ if objs is None:
+ obj = context.active_object
+ else:
+ obj = objs[0]
+
+ lods = [obj]
+ for c in obj.children:
+ if c.lod_for_parent:
+ if c.lod_index>=len(lods):
+ lods += [None]*(c.lod_index+1-len(lods))
+ lods[c.lod_index] = c
- def export(self, context, out_file):
from .outfile import open_output
out_file = open_output(out_file)
+ p1 = max(((v.co, v.co.length) for v in obj.data.vertices), key=lambda x:x[1])[0]
+ p2 = max(((v.co, (v.co-p1).length) for v in obj.data.vertices), key=lambda x:x[1])[0]
+ center = (p1+p2)/2
+ radius = (p1-p2).length/2
+ for v in obj.data.vertices:
+ d = v.co-center
+ if d.length>radius:
+ center += d*(1-radius/d.length)/2
+ radius = (radius+d.length)/2
+
+ out_file.write("bounding_sphere_hint", center[0], center[1], center[2], radius)
+
+ prev_mesh = None
+ prev_tech = (None, None)
+ for i, l in enumerate(lods):
+ if i>0:
+ out_file.begin("level_of_detail", i)
+ objs = [l]
+
+ same_mesh = (l.data.name==prev_mesh)
+ if i==0 or not same_mesh:
+ mesh = self.export_object_mesh(context, out_file, l, objs, progress)
+ prev_mesh = l.data.name
+
+ same_tech = True
+ mat = None
+ if l.material_slots and l.material_slots[0].material:
+ mat = l.material_slots[0].material.name
+ if mat!=prev_tech[1]:
+ same_tech = False
+ if self.external_tech and l.technique!=prev_tech[0]:
+ same_tech = False
+ if i==0 or not same_tech:
+ self.export_object_technique(l, mesh, out_file, i)
+ prev_tech = (l.technique, mat)
+
+ if i>0:
+ out_file.end()
+
+ def export_object_mesh(self, context, out_file, lod, objs, progress):
from .export_mesh import MeshExporter
mesh_export = MeshExporter()
for k, v in self.__dict__.items():
setattr(mesh_export, k, v)
+ lod_index = 0
+ if lod.lod_for_parent:
+ lod_index = lod.lod_index
+
if self.separate_mesh:
- path, base = os.path.split(out_file.filename)
- base, ext = os.path.splitext(base)
- mesh_out = open_output(os.path.join(path, base+".mesh"))
- mesh = mesh_export.export(context, mesh_out)
- out_file.write("mesh", "\""+base+".mesh\"")
+ from .outfile import open_output
+ path, name = external_name(out_file, ".mesh", lod_index)
+ if self.shared_mesh:
+ name = lod.data.name+".mesh"
+ mesh_out = open_output(os.path.join(path, name))
+ mesh = mesh_export.export(context, mesh_out, objs, progress)
+ out_file.write("mesh", '"{}"'.format(name))
else:
out_file.begin("mesh")
- mesh = mesh_export.export(context, out_file)
+ mesh = mesh_export.export(context, out_file, objs, progress)
out_file.end()
- out_file.begin("technique")
- out_file.begin("pass", '""')
- if mesh.materials:
- if self.srgb_colors:
- cm = linear_to_srgb
+ return mesh
+
+ def export_object_technique(self, obj, mesh, out_file, lod_index):
+ if self.srgb_colors:
+ self.colormap = linear_to_srgb
+ else:
+ self.colormap = lambda x: x
+
+ material = None
+ if obj.material_slots:
+ material = obj.material_slots[0].material
+
+ from .outfile import open_output
+ path, name = external_name(out_file, ".tech", lod_index)
+
+ if self.external_tech and obj.technique:
+ if obj.inherit_tech and material and (obj.override_material or material.texture_slots):
+ out_file.begin("technique")
+ out_file.begin("inherit", '"{}"'.format(obj.technique))
+ for slot in material.texture_slots:
+ if slot and slot.texture.type=="IMAGE":
+ name = image_name(slot.texture.image)
+ if slot.use_map_color_diffuse:
+ out_file.write("texture", '"diffuse_map"', '"{}"'.format(name))
+ elif slot.use_map_normal:
+ out_file.write("texture", '"normal_map"', '"{}"'.format(name))
+ if obj.override_material:
+ mat_name = material.name+".mat"
+ mat_out = open_output(os.path.join(path, mat_name))
+ self.export_material(material, mat_out)
+ out_file.write("material", '""', '"{}"'.format(mat_name))
+ out_file.end()
+ out_file.end()
else:
- cm = lambda x: x
+ out_file.write("technique", '"{}"'.format(obj.technique))
+ elif self.separate_tech:
+ if self.shared_tech and material:
+ name = material.name+".tech"
+ tech_out = open_output(os.path.join(path, name))
+ self.export_technique_definition(material, mesh, tech_out)
+ out_file.write("technique", '"{}"'.format(name))
+ else:
+ out_file.begin("technique")
+ self.export_technique_definition(material, mesh, out_file)
+ out_file.end()
+
+ def export_technique_definition(self, material, mesh, out_file):
+ out_file.begin("pass", '""')
+ if material:
+ cm = self.colormap
if self.material_tex:
out_file.begin("material")
out_file.write("storage", "RGB", len(mesh.materials), 1)
texdata = '"'
for m in mesh.materials:
- color = [int(cm(c)*255) for c in m.diffuse_color]
+ color = [int(cm(c)*255) for c in m.diffuse_color*mat.diffuse_intensity]
texdata += "\\x%02X\\x%02X\\x%02X"%tuple(color)
texdata += '"'
out_file.write("raw_data", texdata)
out_file.end()
out_file.end()
else:
- mat = mesh.materials[0]
out_file.begin("material")
- if any((s and s.use_map_color_diffuse) for s in mat.texture_slots):
- out_file.write("diffuse", 1.0, 1.0, 1.0, 1.0)
- amb = cm(mat.ambient)
- out_file.write("ambient", amb, amb, amb, 1.0)
- else:
- diff = mat.diffuse_color
- out_file.write("diffuse", cm(diff.r), cm(diff.g), cm(diff.b), 1.0)
- amb = diff*mat.ambient
- out_file.write("ambient", cm(amb.r), cm(amb.g), cm(amb.b), 1.0)
- spec = mat.specular_color*mat.specular_intensity
- out_file.write("specular", spec.r, spec.g, spec.b, 1.0)
- out_file.write("shininess", mat.specular_hardness);
+ self.export_material(material, out_file)
out_file.end()
if self.textures!="NONE":
- for slot in mesh.materials[0].texture_slots:
+ for slot in material.texture_slots:
if not slot:
continue
out_file.write("raw_data", texdata)
out_file.end()
else:
- out_file.write("texture", '"%s"'%tex.image.name)
+ out_file.write("texture", '"%s"'%image_name(tex.image))
out_file.end()
out_file.end()
- out_file.end()
+
+ def export_material(self, mat, out_file):
+ cm = self.colormap
+ if any((s and s.use_map_color_diffuse) for s in mat.texture_slots):
+ out_file.write("diffuse", 1.0, 1.0, 1.0, 1.0)
+ amb = cm(mat.ambient)
+ out_file.write("ambient", amb, amb, amb, 1.0)
+ else:
+ diff = mat.diffuse_color*mat.diffuse_intensity
+ out_file.write("diffuse", cm(diff.r), cm(diff.g), cm(diff.b), 1.0)
+ amb = diff*mat.ambient
+ out_file.write("ambient", cm(amb.r), cm(amb.g), cm(amb.b), 1.0)
+ spec = mat.specular_color*mat.specular_intensity
+ out_file.write("specular", spec.r, spec.g, spec.b, 1.0)
+ out_file.write("shininess", mat.specular_hardness);