- Added WIP Blender 2.5 exporter

utils/export_threejs.py

@@ -0,0 +1,195 @@
+__author__ = "Mr.doob"
+__url__ = ("http://mrdoob.com")
+__version__ = "1"
+__bpydoc__ = """\
+This script exports the selected object for the three.js engine.
+"""
+
+import bpy
+
+def rvec3d(v):
+    return round(v[0], 6), round(v[1], 6), round(v[2], 6)
+
+
+def rvec2d(v):
+    return round(v[0], 6), round(v[1], 6)
+
+
+def write(filename, scene, ob, \
+        EXPORT_APPLY_MODIFIERS=True,\
+        EXPORT_NORMALS=True,\
+        EXPORT_UV=True,\
+        EXPORT_COLORS=True):
+
+    if not filename.lower().endswith('.js'):
+        filename += '.js'
+
+    if not ob:
+        raise Exception("Error, Select the object to export")
+        return
+
+    file = open(filename, 'w')
+
+    if EXPORT_APPLY_MODIFIERS:
+        mesh = ob.create_mesh(True, 'PREVIEW')
+    else:
+        mesh = ob.data
+
+    if not mesh:
+        raise ("Error, could not get mesh data from selected object")
+        return
+
+    faceUV = len(mesh.uv_textures) > 0
+    vertexUV = len(mesh.sticky) > 0
+    vertexColors = len(mesh.vertex_colors) > 0
+
+    if (not faceUV) and (not vertexUV):
+        EXPORT_UV = False
+    if not vertexColors:
+        EXPORT_COLORS = False
+
+    if not EXPORT_UV:
+        faceUV = vertexUV = False
+    if not EXPORT_COLORS:
+        vertexColors = False
+
+    if faceUV:
+        active_uv_layer = mesh.active_uv_texture
+        if not active_uv_layer:
+            EXPORT_UV = False
+            faceUV = None
+        else:
+            active_uv_layer = active_uv_layer.data
+
+    if vertexColors:
+        active_col_layer = mesh.active_vertex_color
+        if not active_col_layer:
+            EXPORT_COLORS = False
+            vertexColors = None
+        else:
+            active_col_layer = active_col_layer.data
+
+    # incase
+    color = uvcoord = uvcoord_key = normal = normal_key = None
+
+    file.write('var %s = function () {\n\n' % filename)
+
+    file.write('\tvar scope = this;\n\n')
+
+    file.write('\tTHREE.Geometry.call(this);\n\n')
+
+    for v in mesh.verts:
+        file.write('\tv( %.6f, %.6f, %.6f );\n' % (v.co.x, v.co.z, -v.co.y)) # co
+        """
+        if EXPORT_NORMALS:
+            file.write('%.6f %.6f %.6f ' % v[1]) # no
+        if EXPORT_UV:
+            file.write('%.6f %.6f ' % v) # uv
+        if EXPORT_COLORS:
+            file.write('%u %u %u' % v[3]) # col
+        """
+
+    file.write('\n')
+
+    for f in mesh.faces:
+        if len(f.verts) == 3:
+            file.write('\tf3( %d, %d, %d );\n' % (f.verts[0], f.verts[1], f.verts[2]))
+        else:
+            file.write('\tf4( %d, %d, %d, %d );\n' % (f.verts[0], f.verts[1], f.verts[2], f.verts[3]))
+
+    file.write('\n')
+
+    file.write('\tfunction v( x, y, z ) {\n\n')
+    file.write('\t\tscope.vertices.push( new THREE.Vertex( new THREE.Vector3( x, y, z ) ) );\n\n')
+    file.write('\t}\n\n')
+
+    file.write('\tfunction f3( a, b, c ) {\n\n')
+    file.write('\t\tscope.faces.push( new THREE.Face3( a, b, c ) );\n\n')
+    file.write('\t}\n\n')
+
+    file.write('\tfunction f4( a, b, c, d ) {\n\n')
+    file.write('\t\tscope.faces.push( new THREE.Face4( a, b, c, d ) );\n\n')
+    file.write('\t}\n\n')
+
+    file.write('}\n\n')
+
+    file.write('%s.prototype = new THREE.Geometry();\n' % filename)
+    file.write('%s.prototype.constructor = %s;' % (filename, filename))
+
+    file.close()
+
+    print("writing", filename, "done")
+
+    if EXPORT_APPLY_MODIFIERS:
+        bpy.data.meshes.remove(mesh)
+
+from bpy.props import *
+
+
+class ExportTHREEJS(bpy.types.Operator):
+    '''TODO'''
+    bl_idname = "export.three_js"
+    bl_label = "Export three.js"
+
+    # List of operator properties, the attributes will be assigned
+    # to the class instance from the operator settings before calling.
+
+
+    path = StringProperty(name="File Path", description="File path used for exporting the PLY file", maxlen=1024, default="")
+    check_existing = BoolProperty(name="Check Existing", description="Check and warn on overwriting existing files", default=True, options={'HIDDEN'})
+    use_modifiers = BoolProperty(name="Apply Modifiers", description="Apply Modifiers to the exported mesh", default=True)
+    use_normals = BoolProperty(name="Normals", description="Export Normals for smooth and hard shaded faces", default=True)
+    use_uvs = BoolProperty(name="UVs", description="Exort the active UV layer", default=True)
+    use_colors = BoolProperty(name="Vertex Colors", description="Exort the active vertex color layer", default=True)
+
+    def poll(self, context):
+        return context.active_object != None
+
+    def execute(self, context):
+        # print("Selected: " + context.active_object.name)
+
+        if not self.properties.path:
+            raise Exception("filename not set")
+
+        write(self.properties.path, context.scene, context.active_object,\
+            EXPORT_APPLY_MODIFIERS=self.properties.use_modifiers,
+            EXPORT_NORMALS=self.properties.use_normals,
+            EXPORT_UV=self.properties.use_uvs,
+            EXPORT_COLORS=self.properties.use_colors,
+        )
+
+        return {'FINISHED'}
+
+    def invoke(self, context, event):
+        wm = context.manager
+        wm.add_fileselect(self)
+        return {'RUNNING_MODAL'}
+
+    def draw(self, context):
+        layout = self.layout
+        props = self.properties
+
+        row = layout.row()
+        row.prop(props, "use_modifiers")
+        row.prop(props, "use_normals")
+        row = layout.row()
+        row.prop(props, "use_uvs")
+        row.prop(props, "use_colors")
+
+
+def menu_func(self, context):
+    default_path = bpy.data.filename.replace(".blend", ".js")
+    self.layout.operator(ExportTHREEJS.bl_idname, text="three.js (.js)").path = default_path
+
+
+def register():
+    bpy.types.register(ExportTHREEJS)
+    bpy.types.INFO_MT_file_export.append(menu_func)
+
+
+def unregister():
+    bpy.types.unregister(ExportTHREEJS)
+    bpy.types.INFO_MT_file_export.remove(menu_func)
+
+if __name__ == "__main__":
+    register()