import os
+import mathutils
def linear_to_srgb(l):
if l<0.0031308:
else:
return 1.055*(l**(1/2.4))-0.055
+def get_colormap(srgb):
+ if srgb:
+ return linear_to_srgb
+ else:
+ return lambda x: x
+
+def image_name(i):
+ fp = i.filepath
+ if fp:
+ return os.path.split(fp)[1]
+ else:
+ return i.name
+
class ObjectExporter:
def __init__(self):
- self.material_tex = False
- self.srgb_colors = True
+ self.show_progress = True
+ self.use_strips = True
+ self.use_degen_tris = False
self.textures = "REF"
self.separate_mesh = False
self.separate_tech = False
- self.external_tech = True
- self.shared_tech = True
+ self.shared_resources = 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]
+ def compute_bounding_sphere(self, obj):
+ 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
+
+ return center, radius
+
+ def collect_object_lods(self, obj):
+ lods = [obj]
+ if self.export_lods:
+ lods += sorted([c for c in obj.children if c.lod_for_parent], key=(lambda l: l.lod_index))
+ for i, l in enumerate(lods):
+ if i>0 and l.lod_index!=i:
+ raise Exception("Inconsistent LOD indices")
- from .outfile import open_output
- out_file = open_output(out_file)
+ return lods
+ def create_mesh_exporter(self):
from .export_mesh import MeshExporter
mesh_export = MeshExporter()
- for k, v in self.__dict__.items():
- setattr(mesh_export, k, v)
-
- 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, objs, progress)
- out_file.write("mesh", '"{}.mesh"'.format(base))
- else:
- out_file.begin("mesh")
- mesh = mesh_export.export(context, out_file, objs, progress)
- out_file.end()
-
- if self.external_tech and obj.technique:
- out_file.write("technique", '"{}"'.format(obj.technique))
- elif self.separate_tech:
- path, base = os.path.split(out_file.filename)
- if self.shared_tech and mesh.materials:
- tech_name = mesh.materials[0].name+".tech"
- else:
- base, ext = os.path.splitext(base)
- tech_name = base+".tech"
- tech_out = open_output(os.path.join(path, tech_name))
- self.export_technique(mesh, tech_out)
- out_file.write("technique", '"{}"'.format(tech_name))
- else:
- out_file.begin("technique")
- self.export_technique(mesh, out_file)
- out_file.end()
-
- def export_technique(self, mesh, out_file):
- out_file.begin("pass", '""')
- if mesh.materials:
- if self.srgb_colors:
- cm = linear_to_srgb
- else:
- cm = lambda x: x
-
- if self.material_tex:
- out_file.begin("material")
- out_file.write("diffuse", 1.0, 1.0, 1.0, 1.0)
- out_file.end()
- index = 0
- for u in mesh.uv_layers:
- if u.name=="material_tex":
- index = u.unit
- out_file.begin("texunit", index)
- out_file.begin("texture2d")
- out_file.write("min_filter", "NEAREST")
- out_file.write("mag_filter", "NEAREST")
- 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]
- 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)
+ mesh_export.use_strips = self.use_strips
+ mesh_export.use_degen_tris = self.use_degen_tris
+ return mesh_export
+
+ def export_to_file(self, context, out_fn):
+ obj = context.active_object
+
+ from .util import Progress
+ progress = Progress(self.show_progress and context)
+
+ path, base = os.path.split(out_fn)
+ base = os.path.splitext(base)[0]
+
+ resources = {}
+ self.export_object_resources(context, obj, resources, progress)
+
+ obj_res = self.export_object(context, obj, progress, resources=resources)
+ refs = obj_res.collect_references()
+ if not self.shared_resources:
+ numbers = {}
+ for r in refs:
+ ext = os.path.splitext(r.name)[1]
+ n = numbers.get(ext, 0)
+ if n>0:
+ r.name = "{}_{}{}".format(base, n, ext)
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);
- out_file.end()
+ r.name = base+ext
+ numbers[ext] = n+1
- if self.textures!="NONE":
- for slot in mesh.materials[0].texture_slots:
- if not slot:
- continue
-
- tex = slot.texture
- if tex.type!="IMAGE":
- continue
-
- if slot.uv_layer:
- for u in mesh.uv_layers:
- if u.name==slot.uv_layer:
- index = u.unit
+ for r in refs:
+ with open(os.path.join(path, r.name), "w") as out_file:
+ for s in r.statements:
+ s.write_to_file(out_file)
+
+ with open(out_fn, "w") as out_file:
+ for s in obj_res.statements:
+ s.write_to_file(out_file)
+
+ def export_object_resources(self, context, obj, resources, progress):
+ lods = self.collect_object_lods(obj)
+
+ from .mesh import create_mesh_from_object
+ mesh_export = self.create_mesh_exporter()
+
+ for i, l in enumerate(lods):
+ lod_index = l.lod_index if l.lod_for_parent else 0
+ progress.push_task_slice("LOD {}".format(lod_index), i, len(lods))
+
+ mesh_name = l.data.name+".mesh"
+ if mesh_name not in resources:
+ mesh = create_mesh_from_object(context, l, progress)
+ mesh_res = mesh_export.export_mesh(context, mesh, progress)
+ resources[mesh_name] = mesh_res
+
+ material = None
+ if l.material_slots and l.material_slots[0].material:
+ material = l.material_slots[0].material
+ mat_name = material.name+".mat"
+ if mat_name not in resources:
+ resources[mat_name] = self.export_material(material)
+
+ tech_name = (material.name if material else l.name)+".tech"
+ if tech_name not in resources:
+ resources[tech_name] = self.export_object_technique(l, resources=resources)
+
+ progress.pop_task()
+
+ def export_object(self, context, obj, progress, *, resources=None):
+ if resources is None:
+ resources = {}
+ self.export_object_resources(context, obj, resources, progress)
+
+ lods = self.collect_object_lods(obj)
+
+ from .datafile import Resource, Statement
+ obj_res = Resource(obj.name+".object")
+ statements = obj_res.statements
+
+ center, radius = self.compute_bounding_sphere(obj)
+ statements.append(Statement("bounding_sphere_hint", *center, radius))
+
+ prev_mesh = None
+ prev_tech = (None, None)
+ for i, l in enumerate(lods):
+ lod_st = []
+
+ if l.data.name!=prev_mesh:
+ mesh_res = resources[l.data.name+".mesh"]
+ if self.separate_mesh:
+ lod_st.append(obj_res.create_reference_statement("mesh", mesh_res))
+ else:
+ lod_st.append(obj_res.create_embed_statement("mesh", mesh_res))
+
+ prev_mesh = l.data.name
+
+ mat_name = None
+ if l.material_slots and l.material_slots[0].material:
+ mat_name = l.material_slots[0].material.name
+
+ tech = (l.technique, mat_name)
+ if tech!=prev_tech:
+ tech_res = resources[(mat_name or l.name)+".tech"]
+ if l.technique:
+ if l.inherit_tech:
+ lod_st.append(obj_res.create_embed_statement("technique", tech_res))
else:
- index = mesh.uv_layers[0].unit
+ lod_st.append(Statement("technique", l.technique))
+ elif self.separate_tech:
+ lod_st.append(obj_res.create_reference_statement("technique", tech_res))
+ else:
+ lod_st.append(obj_res.create_embed_statement("technique", tech_res))
+
+ prev_tech = tech
+
+ if i>0:
+ st = Statement("level_of_detail", i)
+ st.sub = lod_st
+ statements.append(st)
+ else:
+ statements += lod_st
+
+ progress.set_progress(1.0)
+
+ return obj_res
- out_file.begin("texunit", index)
+ def export_object_technique(self, obj, *, resources):
+ material = None
+ if obj.material_slots:
+ material = obj.material_slots[0].material
+
+ from .datafile import Resource, Statement, Token
+ tech_res = Resource((material.name if material else obj.name)+".tech")
+
+ mat_res = None
+ if material:
+ mat_res = resources[material.name+".mat"]
+
+ if obj.technique:
+ if not obj.inherit_tech:
+ return tech_res
+
+ st = Statement("inherit", obj.technique)
+ if material:
+ 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:
+ st.sub.append(Statement("texture", "diffuse_map", name))
+ elif slot.use_map_normal:
+ st.sub.append(Statement("texture", "normal_map", name))
+ if obj.override_material:
+ st.sub.append(tech_res.create_reference_statement("material", "surface", mat_res))
+ tech_res.statements.append(st)
+
+ return tech_res
+
+ pass_st = Statement("pass", "")
+ if material:
+ pass_st.sub.append(tech_res.create_embed_statement("material", mat_res))
+
+ if self.textures!="NONE":
+ diffuse_tex = None
+ for slot in material.texture_slots:
+ if slot and slot.texture.type=="IMAGE" and slot.use_map_color_diffuse:
+ diffuse_tex = slot.texture
+ break
+
+ if diffuse_tex:
+ st = Statement("texunit", 0)
if self.textures=="INLINE":
- out_file.begin("texture2d")
- out_file.write("min_filter", "LINEAR")
- out_file.write("storage", "RGBA", tex.image.size[0], tex.image.size[1])
- texdata = '"'
+ ss = Statement("texture2d")
+ ss.sub.append(Statement("min_filter", Token("LINEAR")))
+ ss.sub.append(Statement("storage", Token("RGBA"), tex.image.size[0], tex.image.size[1]))
+ texdata = ""
for p in tex.image.pixels:
texdata += "\\x%02X"%int(p*255)
- texdata += '"'
- out_file.write("raw_data", texdata)
- out_file.end()
- else:
- out_file.write("texture", '"%s"'%tex.image.name)
- out_file.end()
+ ss.sub.append(Statement("raw_data", texdata))
+ st.sub.append(ss)
+ elif tex.image:
+ st.sub.append(Statement("texture", image_name(tex.image)))
+ pass_st.sub.append(st)
+ tech_res.statements.append(pass_st)
+
+ return tech_res
+
+ def export_material(self, material):
+ from .datafile import Resource, Statement
+ mat_res = Resource(material.name+".mat")
+ statements = mat_res.statements
+
+ cm = get_colormap(material.srgb_colors)
+ if any(s.use_map_color_diffuse for s in material.texture_slots if s):
+ statements.append(Statement("diffuse", 1.0, 1.0, 1.0, 1.0))
+ amb = cm(material.ambient)
+ statements.append(Statement("ambient", amb, amb, amb, 1.0))
+ else:
+ diff = material.diffuse_color*material.diffuse_intensity
+ statements.append(Statement("diffuse", cm(diff.r), cm(diff.g), cm(diff.b), 1.0))
+ amb = diff*material.ambient
+ statements.append(Statement("ambient", cm(amb.r), cm(amb.g), cm(amb.b), 1.0))
+ spec = material.specular_color*material.specular_intensity
+ statements.append(Statement("specular", cm(spec.r), cm(spec.g), cm(spec.g), 1.0))
+ statements.append(Statement("shininess", material.specular_hardness))
- out_file.end()
+ return mat_res
projects / libs / gl.git / blobdiff