EXPORT-WEBGL.PY

bl_info = {
    "name": "Export for WebGL",
    "author": "Francisco Charrua",
    "category": "Import-Export",
    "location": "File > Export",
    "blender": (2, 71, 0)
}

import bpy

class exportForWebGL(bpy.types.Operator):
    bl_idname = 'object.exportforwebgl'
    bl_label = 'export for webgl'
    bl_options = {'REGISTER'}
    
    filepath = bpy.props.StringProperty(subtype='FILE_PATH')
    
    def execute(self, context):
        file = open(self.filepath, 'w')
        for obj in bpy.context.selected_objects:
            if hasattr(obj.data, 'vertices'):
                verts = obj.data.vertices
            
                file.write('var ' + formVar(obj.name) + 'Vertices =\n[')
                for face_counter, face in enumerate(obj.data.polygons):
                    for index_counter, index in enumerate(face.vertices):
                        file.write(formFloat(verts[index].co.x) + ', ' + formFloat(verts[index].co.y) + ', ' + formFloat(verts[index].co.z))
                        if index_counter < len(face.vertices) - 1 or face_counter < len(obj.data.polygons) - 1:
                            file.write(', ')
                        else:
                            file.write('];\n');
                    file.write('\n')
                  
                file.write('var ' + formVar(obj.name) + 'Normals =\n[')  
                for face_counter, face in enumerate(obj.data.polygons):
                    for index_counter, index in enumerate(face.vertices):
                        file.write(formFloat(face.normal.x) + ', ' + formFloat(face.normal.y) + ', ' + formFloat(face.normal.z))
                        if index_counter < len(face.vertices) - 1 or face_counter < len(obj.data.polygons) - 1:
                            file.write(', ')
                        else:
                            file.write('];\n');
                    file.write('\n')
                    
        return {'FINISHED'}
    
    def invoke(self, context, event):
        context.window_manager.fileselect_add(self)
        return {'RUNNING_MODAL'}

def register():
    bpy.utils.register_class(exportForWebGL)
    bpy.types.VIEW3D_MT_object.append(menu_func)
    bpy.types.INFO_MT_file_export.append(menu_func)
        
def unregister():
    bpy.utils.unregister_class(exportForWebGL)
    bpy.types.VIEW3D_MT_object.remove(menu_func)
    bpy.types.INFO_MT_file_export.remove(menu_func)
    
def menu_func(self, context):
    self.layout.operator(exportForWebGL.bl_idname)
    
def formFloat(num):
    return(str(round(num, 3)))

def formVar(name):
    return(name.replace('.', '_'))