]> git.tdb.fi Git - libs/gl.git/blobdiff - blender/io_mspgl/export_object.py
Correctly process meshes with empty material slots
[libs/gl.git] / blender / io_mspgl / export_object.py
index 34724221184e600b8c40e9a53974275e0a34ffd8..6e399b0199f9f77b10175fe5a4a86027d29a88cc 100644 (file)
@@ -1,34 +1,13 @@
 import os
 import mathutils
 
-def linear_to_srgb(l):
-       if l<0.0031308:
-               return 12.92*l
-       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.show_progress = True
                self.use_strips = True
                self.use_degen_tris = False
-               self.textures = "REF"
-               self.separate_mesh = False
-               self.separate_tech = False
+               self.use_textures = True
+               self.single_file = True
                self.shared_resources = True
                self.export_lods = True
 
@@ -62,6 +41,19 @@ class ObjectExporter:
                mesh_export.use_degen_tris = self.use_degen_tris
                return mesh_export
 
+       def create_material_exporter(self):
+               from .export_material import MaterialExporter
+               material_export = MaterialExporter()
+               material_export.single_file = self.single_file
+               material_export.use_textures = self.use_textures
+               return material_export
+
+       def create_material_map_exporter(self):
+               from .export_material import MaterialMapExporter
+               material_map_export = MaterialMapExporter()
+               material_map_export.single_file = self.single_file
+               return material_map_export
+
        def export_to_file(self, context, out_fn):
                obj = context.active_object
 
@@ -96,33 +88,55 @@ class ObjectExporter:
                        for s in obj_res.statements:
                                s.write_to_file(out_file)
 
-       def export_object_resources(self, context, obj, resources, progress):
+       def export_object_resources(self, context, obj, resources, progress, material_maps=None):
+               if material_maps is None:
+                       material_maps = {}
+
                lods = self.collect_object_lods(obj)
 
                from .mesh import create_mesh_from_object
+               from .material import create_material_map
                mesh_export = self.create_mesh_exporter()
+               material_export = self.create_material_exporter()
+               material_map_export = self.create_material_map_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))
 
+                       material_map = None
+                       mapped_count = sum(m.material_map for m in l.data.materials if m)
+                       if mapped_count:
+                               material_map_tech = l.data.materials[0].technique
+                               tech_mismatch = any(m.technique!=material_map_tech for m in l.data.materials)
+                               if mapped_count!=len(l.data.materials) or tech_mismatch:
+                                       raise Exception("Conflicting settings in object materials")
+
+                               if material_map_tech in material_maps:
+                                       material_map = material_maps[material_map_tech]
+                               else:
+                                       material_map = create_material_map(context, l.data.materials[0])
+                                       material_maps[material_map_tech] = material_map
+
+                               tech_name = "material_map_{}.tech".format(os.path.splitext(material_map_tech)[0])
+                               if tech_name not in resources:
+                                       material_map_export.export_technique_resources(material_map, resources)
+                                       resources[tech_name] = material_map_export.export_technique(material_map, resources=resources)
+                       elif l.material_slots and l.material_slots[0].material:
+                               material = l.material_slots[0].material
+                               tech_name = material.name+".tech"
+                               if tech_name not in resources:
+                                       material_export.export_technique_resources(material, resources)
+                                       resources[tech_name] = material_export.export_technique(material, resources=resources)
+                       elif "stub.tech" not in resources:
+                               resources["stub.tech"] = self.export_stub_technique()
+
                        mesh_name = l.data.name+".mesh"
                        if mesh_name not in resources:
-                               mesh = create_mesh_from_object(context, l, progress)
+                               mesh = create_mesh_from_object(context, l, progress, material_map=material_map)
                                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):
@@ -140,37 +154,38 @@ class ObjectExporter:
                statements.append(Statement("bounding_sphere_hint", *center, radius))
 
                prev_mesh = None
-               prev_tech = (None, None)
+               prev_tech = 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:
+                               if not self.single_file:
                                        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:
-                                               lod_st.append(Statement("technique", l.technique))
-                               elif self.separate_tech:
+                       material = None
+                       if l.material_slots:
+                               material = l.material_slots[0].material
+                       if material:
+                               if material.material_map:
+                                       tech_res = resources["material_map_{}.tech".format(os.path.splitext(material.technique)[0])]
+                               else:
+                                       tech_res = resources[material.name+".tech"]
+                       else:
+                               tech_res = resources["stub.tech"]
+
+                       if tech_res.name!=prev_tech:
+                               if material and not material.material_map and material.technique and not material.inherit_tech:
+                                       lod_st.append(Statement("technique", material.technique))
+                               elif not self.single_file:
                                        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
+                               prev_tech = tech_res.name
 
                        if i>0:
                                st = Statement("level_of_detail", i)
@@ -183,83 +198,8 @@ class ObjectExporter:
 
                return obj_res
 
-       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":
-                                               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)
-                                               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):
+       def export_stub_technique(self):
                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))
-
-               return mat_res
+               tech_res = Resource("stub.tech")
+               tech_res.statements.append(Statement("pass", ""))
+               return tech_res