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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contributor(s): Chingiz Dyussenov, Arystanbek Dyussenov, Jan Diederich, Tod Liverseed.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/collada/SceneExporter.cpp
* \ingroup collada
*/
#include "SceneExporter.h"
#include "collada_utils.h"
SceneExporter::SceneExporter(COLLADASW::StreamWriter *sw, ArmatureExporter *arm, const ExportSettings *export_settings)
: COLLADASW::LibraryVisualScenes(sw), arm_exporter(arm), export_settings(export_settings)
{}
void SceneExporter::exportScene(Scene *sce)
{
// <library_visual_scenes> <visual_scene>
std::string id_naming = id_name(sce);
openVisualScene(translate_id(id_naming), id_naming);
exportHierarchy(sce);
closeVisualScene();
closeLibrary();
}
// Returns true if the parent chain does not contain any selected object
// Otherwise return false (ob has selected predecessor)
bool is_exported_base_node(Object *ob, bool selection_only) {
if (selection_only && ob->flag & SELECT) {
// Move up towards root object,
// stop at first selected predecessor's child,
// or at root, if no parent was selected
while (ob->parent && (ob->parent->type==OB_ARMATURE || !(ob->parent->flag & SELECT)))
{
ob = ob->parent;
}
}
return !ob->parent;
}
void SceneExporter::exportHierarchy(Scene *sce)
{
Base *base= (Base*) sce->base.first;
while (base) {
Object *ob = base->object;
bool is_export_base_node = is_exported_base_node(ob, this->export_settings->selected);
if (is_export_base_node) {
if (sce->lay & ob->lay) {
switch (ob->type) {
case OB_MESH:
case OB_CAMERA:
case OB_LAMP:
case OB_EMPTY:
if (this->export_settings->selected && !(ob->flag & SELECT)) {
break;
}
// write nodes....
writeNodes(ob, sce);
break;
}
}
}
base= base->next;
}
}
void SceneExporter::writeNodes(Object *ob, Scene *sce)
{
// Add associated armature first if available
if (this->export_settings->include_armatures) {
Object *ob_arm = bc_get_assigned_armature(ob);
if(ob_arm != NULL)
writeNodes(ob_arm, sce);
}
COLLADASW::Node node(mSW);
node.setNodeId(translate_id(id_name(ob)));
node.setNodeName(translate_id(id_name(ob)));
node.setType(COLLADASW::Node::NODE);
node.start();
bool is_skinned_mesh = arm_exporter->is_skinned_mesh(ob);
std::list<Object*> child_objects;
// XXX Not sure about this.
// For me this looks more like a very special case for a very special purpose.
// Wouldn't it be better to have only one option here ?
//
// - include children
//
// Instead of "include_bone_children" ?
// then we could just ask:
// if (this->export_settings->include_children)
// ...
if (this->export_settings->include_armatures
&& this->export_settings->include_bone_children) {
// list child objects
Base *b = (Base*) sce->base.first;
while (b) {
// cob - child object
Object *cob = b->object;
if (cob->parent == ob) {
switch (cob->type) {
case OB_MESH:
case OB_CAMERA:
case OB_LAMP:
case OB_EMPTY:
case OB_ARMATURE:
child_objects.push_back(cob);
break;
}
}
b = b->next;
}
}
if (ob->type == OB_MESH && this->export_settings->include_armatures && is_skinned_mesh)
// for skinned mesh we write obmat in <bind_shape_matrix>
TransformWriter::add_node_transform_identity(node);
else
TransformWriter::add_node_transform_ob(node, ob);
// <instance_geometry>
if (ob->type == OB_MESH) {
bool instance_controller_created = false;
if (this->export_settings->include_armatures && is_skinned_mesh) {
instance_controller_created = arm_exporter->add_instance_controller(ob);
}
if (!instance_controller_created){
COLLADASW::InstanceGeometry instGeom(mSW);
instGeom.setUrl(COLLADASW::URI(COLLADABU::Utils::EMPTY_STRING, get_geometry_id(ob, this->export_settings->use_object_instantiation)));
InstanceWriter::add_material_bindings(instGeom.getBindMaterial(), ob);
instGeom.add();
}
}
// <instance_controller>
else if (ob->type == OB_ARMATURE) {
arm_exporter->add_armature_bones(ob, sce, this, child_objects);
// XXX this looks unstable...
node.end();
}
// <instance_camera>
else if (ob->type == OB_CAMERA) {
COLLADASW::InstanceCamera instCam(mSW, COLLADASW::URI(COLLADABU::Utils::EMPTY_STRING, get_camera_id(ob)));
instCam.add();
}
// <instance_light>
else if (ob->type == OB_LAMP) {
COLLADASW::InstanceLight instLa(mSW, COLLADASW::URI(COLLADABU::Utils::EMPTY_STRING, get_light_id(ob)));
instLa.add();
}
// empty object
else if (ob->type == OB_EMPTY) { // TODO: handle groups (OB_DUPLIGROUP
if ((ob->transflag & OB_DUPLIGROUP) == OB_DUPLIGROUP && ob->dup_group) {
GroupObject *go = NULL;
Group *gr = ob->dup_group;
/* printf("group detected '%s'\n", gr->id.name+2); */
for (go = (GroupObject*)(gr->gobject.first); go; go=go->next) {
printf("\t%s\n", go->ob->id.name);
}
}
}
for (std::list<Object*>::iterator i= child_objects.begin(); i != child_objects.end(); ++i) {
writeNodes(*i, sce);
}
if (ob->type != OB_ARMATURE)
node.end();
}
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