diff options
author | Gaia Clary <gaia.clary@machinimatrix.org> | 2013-01-21 17:45:49 +0400 |
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committer | Gaia Clary <gaia.clary@machinimatrix.org> | 2013-01-21 17:45:49 +0400 |
commit | c263753d1770b5b812ea0e5c38174fa296492e2f (patch) | |
tree | fecb2a493596b9078e36c43d723d527e172a9546 /source/blender/collada/ControllerExporter.cpp | |
parent | 7d286d9a8096438e7a197a2a3f365fbb9df6a0b1 (diff) |
Added gsoc-2012 collada improvements from bratwurst branch
Diffstat (limited to 'source/blender/collada/ControllerExporter.cpp')
-rw-r--r-- | source/blender/collada/ControllerExporter.cpp | 598 |
1 files changed, 598 insertions, 0 deletions
diff --git a/source/blender/collada/ControllerExporter.cpp b/source/blender/collada/ControllerExporter.cpp new file mode 100644 index 00000000000..d41c907ee98 --- /dev/null +++ b/source/blender/collada/ControllerExporter.cpp @@ -0,0 +1,598 @@ +/* + * ***** 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, + * Nathan Letwory, Sukhitha Jayathilake + * + * ***** END GPL LICENSE BLOCK ***** + */ + +/** \file blender/collada/ControllerExporter.cpp + * \ingroup collada + */ + +#include "COLLADASWBaseInputElement.h" +#include "COLLADASWInstanceController.h" +#include "COLLADASWPrimitves.h" +#include "COLLADASWSource.h" + +#include "DNA_action_types.h" +#include "DNA_meshdata_types.h" +#include "DNA_modifier_types.h" + +#include "BKE_action.h" +#include "BKE_armature.h" + +extern "C" { +#include "BKE_main.h" +#include "BKE_mesh.h" +#include "BKE_global.h" +#include "BKE_library.h" +} + +#include "ED_armature.h" + +#include "BLI_listbase.h" + +#include "GeometryExporter.h" +#include "ArmatureExporter.h" +#include "ControllerExporter.h" +#include "SceneExporter.h" + +#include "collada_utils.h" + +// XXX exporter writes wrong data for shared armatures. A separate +// controller should be written for each armature-mesh binding how do +// we make controller ids then? +ControllerExporter::ControllerExporter(COLLADASW::StreamWriter *sw, const ExportSettings *export_settings) : COLLADASW::LibraryControllers(sw), export_settings(export_settings) { +} + +bool ControllerExporter::is_skinned_mesh(Object *ob) +{ + return bc_get_assigned_armature(ob) != NULL; +} + + +void ControllerExporter::write_bone_URLs(COLLADASW::InstanceController &ins, Object *ob_arm, Bone *bone) +{ + if (bc_is_root_bone(bone, this->export_settings->deform_bones_only)) + ins.addSkeleton(COLLADABU::URI(COLLADABU::Utils::EMPTY_STRING, get_joint_id(bone, ob_arm))); + else { + for (Bone *child = (Bone *)bone->childbase.first; child; child = child->next) { + write_bone_URLs(ins, ob_arm, child); + } + } +} + +bool ControllerExporter::add_instance_controller(Object *ob) +{ + Object *ob_arm = bc_get_assigned_armature(ob); + bArmature *arm = (bArmature *)ob_arm->data; + + const std::string& controller_id = get_controller_id(ob_arm, ob); + + COLLADASW::InstanceController ins(mSW); + ins.setUrl(COLLADASW::URI(COLLADABU::Utils::EMPTY_STRING, controller_id)); + + Mesh *me = (Mesh *)ob->data; + if (!me->dvert) return false; + + // write root bone URLs + Bone *bone; + for (bone = (Bone *)arm->bonebase.first; bone; bone = bone->next) { + write_bone_URLs(ins, ob_arm, bone); + } + + InstanceWriter::add_material_bindings(ins.getBindMaterial(), ob, this->export_settings->active_uv_only); + + ins.add(); + return true; +} + +void ControllerExporter::export_controllers(Scene *sce) +{ + scene = sce; + + openLibrary(); + + GeometryFunctor gf; + gf.forEachMeshObjectInExportSet<ControllerExporter>(sce, *this, this->export_settings->export_set); + + closeLibrary(); +} + +void ControllerExporter::operator()(Object *ob) +{ + Object *ob_arm = bc_get_assigned_armature(ob); + Key *key = BKE_key_from_object(ob); + + if (ob_arm) + export_skin_controller(ob, ob_arm); + if(key){ + export_morph_controller(ob, key); + } +} +#if 0 + +bool ArmatureExporter::already_written(Object *ob_arm) +{ + return std::find(written_armatures.begin(), written_armatures.end(), ob_arm) != written_armatures.end(); +} + +void ArmatureExporter::wrote(Object *ob_arm) +{ + written_armatures.push_back(ob_arm); +} + +void ArmatureExporter::find_objects_using_armature(Object *ob_arm, std::vector<Object *>& objects, Scene *sce) +{ + objects.clear(); + + Base *base = (Base *) sce->base.first; + while (base) { + Object *ob = base->object; + + if (ob->type == OB_MESH && get_assigned_armature(ob) == ob_arm) { + objects.push_back(ob); + } + + base = base->next; + } +} +#endif + +std::string ControllerExporter::get_joint_sid(Bone *bone, Object *ob_arm) +{ + return get_joint_id(bone, ob_arm); +} + +std::string ControllerExporter::get_controller_id(Object *ob_arm, Object *ob) +{ + return translate_id(id_name(ob_arm)) + "_" + translate_id(id_name(ob)) + SKIN_CONTROLLER_ID_SUFFIX; +} + +std::string ControllerExporter::get_controller_id(Key *key, Object *ob) +{ + return translate_id(id_name(ob)) + MORPH_CONTROLLER_ID_SUFFIX; +} + +// ob should be of type OB_MESH +// both args are required +void ControllerExporter::export_skin_controller(Object *ob, Object *ob_arm) +{ + // joint names + // joint inverse bind matrices + // vertex weights + + // input: + // joint names: ob -> vertex group names + // vertex group weights: me->dvert -> groups -> index, weight + +#if 0 + me->dvert : + + typedef struct MDeformVert { + struct MDeformWeight *dw; + int totweight; + int flag; // flag only in use for weightpaint now + } MDeformVert; + + typedef struct MDeformWeight { + int def_nr; + float weight; + } MDeformWeight; +#endif + + bool use_instantiation = this->export_settings->use_object_instantiation; + Mesh *me; + + if (this->export_settings->apply_modifiers) + me = bc_to_mesh_apply_modifiers(scene, ob, this->export_settings->export_mesh_type); + else + me = (Mesh *)ob->data; + + BKE_mesh_tessface_ensure(me); + + if (!me->dvert) return; + + std::string controller_name = id_name(ob_arm); + std::string controller_id = get_controller_id(ob_arm, ob); + + openSkin(controller_id, controller_name, + COLLADABU::URI(COLLADABU::Utils::EMPTY_STRING, get_geometry_id(ob, use_instantiation))); + + add_bind_shape_mat(ob); + + std::string joints_source_id = add_joints_source(ob_arm, &ob->defbase, controller_id); + std::string inv_bind_mat_source_id = add_inv_bind_mats_source(ob_arm, &ob->defbase, controller_id); + + std::list<int> vcounts; + std::list<int> joints; + std::list<float> weights; + + { + int i, j; + + // def group index -> joint index + std::vector<int> joint_index_by_def_index; + bDeformGroup *def; + + for (def = (bDeformGroup *)ob->defbase.first, i = 0, j = 0; def; def = def->next, i++) { + if (is_bone_defgroup(ob_arm, def)) + joint_index_by_def_index.push_back(j++); + else + joint_index_by_def_index.push_back(-1); + } + + for (i = 0; i < me->totvert; i++) { + MDeformVert *vert = &me->dvert[i]; + std::map<int, float> jw; + + // We're normalizing the weights later + float sumw = 0.0f; + + for (j = 0; j < vert->totweight; j++) { + int joint_index = joint_index_by_def_index[vert->dw[j].def_nr]; + if (joint_index != -1 && vert->dw[j].weight > 0.0f) { + jw[joint_index] += vert->dw[j].weight; + sumw += vert->dw[j].weight; + } + } + + if (sumw > 0.0f) { + float invsumw = 1.0f / sumw; + vcounts.push_back(jw.size()); + for (std::map<int, float>::iterator m = jw.begin(); m != jw.end(); ++m) { + joints.push_back((*m).first); + weights.push_back(invsumw * (*m).second); + } + } + else { + vcounts.push_back(0); +#if 0 + vcounts.push_back(1); + joints.push_back(-1); + weights.push_back(1.0f); +#endif + } + } + } + + std::string weights_source_id = add_weights_source(me, controller_id, weights); + add_joints_element(&ob->defbase, joints_source_id, inv_bind_mat_source_id); + add_vertex_weights_element(weights_source_id, joints_source_id, vcounts, joints); + + if (this->export_settings->apply_modifiers) + { + BKE_libblock_free_us(&(G.main->mesh), me); + } + closeSkin(); + closeController(); +} + +void ControllerExporter::export_morph_controller(Object *ob, Key *key) +{ + bool use_instantiation = this->export_settings->use_object_instantiation; + Mesh *me; + + if (this->export_settings->apply_modifiers) { + me = bc_to_mesh_apply_modifiers(scene, ob, this->export_settings->export_mesh_type); + } + else { + me = (Mesh *)ob->data; + } + BKE_mesh_tessface_ensure(me); + + std::string controller_name = id_name(ob) + "-morph"; + std::string controller_id = get_controller_id(key, ob); + + openMorph(controller_id, controller_name, + COLLADABU::URI(COLLADABU::Utils::EMPTY_STRING, get_geometry_id(ob, use_instantiation))); + + std::string targets_id = add_morph_targets(key, ob); + std::string morph_weights_id = add_morph_weights(key, ob); + + COLLADASW::TargetsElement targets(mSW); + + COLLADASW::InputList &input = targets.getInputList(); + + input.push_back(COLLADASW::Input(COLLADASW::InputSemantic::MORPH_TARGET, // constant declared in COLLADASWInputList.h + COLLADASW::URI(COLLADABU::Utils::EMPTY_STRING, targets_id))); + input.push_back(COLLADASW::Input(COLLADASW::InputSemantic::MORPH_WEIGHT, + COLLADASW::URI(COLLADABU::Utils::EMPTY_STRING, morph_weights_id))); + targets.add(); + + if (this->export_settings->apply_modifiers) + { + BKE_libblock_free_us(&(G.main->mesh), me); + } + + //support for animations + //can also try the base element and param alternative + add_weight_extras(key); + closeMorph(); + closeController(); +} + +std::string ControllerExporter::add_morph_targets(Key *key, Object *ob) +{ + std::string source_id = translate_id(id_name(ob)) + TARGETS_SOURCE_ID_SUFFIX; + + COLLADASW::IdRefSource source(mSW); + source.setId(source_id); + source.setArrayId(source_id + ARRAY_ID_SUFFIX); + source.setAccessorCount(key->totkey - 1); + source.setAccessorStride(1); + + COLLADASW::SourceBase::ParameterNameList ¶m = source.getParameterNameList(); + param.push_back("IDREF"); + + source.prepareToAppendValues(); + + KeyBlock * kb = (KeyBlock*)key->block.first; + //skip the basis + kb = kb->next; + for (; kb; kb = kb->next) { + std::string geom_id = get_geometry_id(ob, false) + "_morph_" + translate_id(kb->name); + source.appendValues(geom_id); + + } + + source.finish(); + + return source_id; +} + +std::string ControllerExporter::add_morph_weights(Key *key, Object *ob) +{ + std::string source_id = translate_id(id_name(ob)) + WEIGHTS_SOURCE_ID_SUFFIX; + + COLLADASW::FloatSourceF source(mSW); + source.setId(source_id); + source.setArrayId(source_id + ARRAY_ID_SUFFIX); + source.setAccessorCount(key->totkey - 1); + source.setAccessorStride(1); + + COLLADASW::SourceBase::ParameterNameList ¶m = source.getParameterNameList(); + param.push_back("MORPH_WEIGHT"); + + source.prepareToAppendValues(); + + KeyBlock * kb = (KeyBlock*)key->block.first; + //skip the basis + kb = kb->next; + for (; kb; kb = kb->next) { + float weight = kb->curval; + source.appendValues(weight); + } + source.finish(); + + return source_id; +} + +//Added to implemente support for animations. +void ControllerExporter::add_weight_extras(Key *key){ + // can also try the base element and param alternative + COLLADASW::BaseExtraTechnique extra; + + KeyBlock * kb = (KeyBlock*)key->block.first; + //skip the basis + kb = kb->next; + for (; kb; kb = kb->next) { + float weight = kb->curval; + extra.addExtraTechniqueParameter ("KHR", "morph_weights" , 0.000, "MORPH_WEIGHT_TO_TARGET"); + } +} + + + +void ControllerExporter::add_joints_element(ListBase *defbase, + const std::string& joints_source_id, const std::string& inv_bind_mat_source_id) +{ + COLLADASW::JointsElement joints(mSW); + COLLADASW::InputList &input = joints.getInputList(); + + input.push_back(COLLADASW::Input(COLLADASW::InputSemantic::JOINT, // constant declared in COLLADASWInputList.h + COLLADASW::URI(COLLADABU::Utils::EMPTY_STRING, joints_source_id))); + input.push_back(COLLADASW::Input(COLLADASW::InputSemantic::BINDMATRIX, + COLLADASW::URI(COLLADABU::Utils::EMPTY_STRING, inv_bind_mat_source_id))); + joints.add(); +} + +void ControllerExporter::add_bind_shape_mat(Object *ob) +{ + double bind_mat[4][4]; + + converter.mat4_to_dae_double(bind_mat, ob->obmat); + + addBindShapeTransform(bind_mat); +} + +std::string ControllerExporter::add_joints_source(Object *ob_arm, ListBase *defbase, const std::string& controller_id) +{ + std::string source_id = controller_id + JOINTS_SOURCE_ID_SUFFIX; + + int totjoint = 0; + bDeformGroup *def; + for (def = (bDeformGroup *)defbase->first; def; def = def->next) { + if (is_bone_defgroup(ob_arm, def)) + totjoint++; + } + + COLLADASW::NameSource source(mSW); + source.setId(source_id); + source.setArrayId(source_id + ARRAY_ID_SUFFIX); + source.setAccessorCount(totjoint); + source.setAccessorStride(1); + + COLLADASW::SourceBase::ParameterNameList ¶m = source.getParameterNameList(); + param.push_back("JOINT"); + + source.prepareToAppendValues(); + + for (def = (bDeformGroup *)defbase->first; def; def = def->next) { + Bone *bone = get_bone_from_defgroup(ob_arm, def); + if (bone) + source.appendValues(get_joint_sid(bone, ob_arm)); + } + + source.finish(); + + return source_id; +} + +std::string ControllerExporter::add_inv_bind_mats_source(Object *ob_arm, ListBase *defbase, const std::string& controller_id) +{ + std::string source_id = controller_id + BIND_POSES_SOURCE_ID_SUFFIX; + + int totjoint = 0; + for (bDeformGroup *def = (bDeformGroup *)defbase->first; def; def = def->next) { + if (is_bone_defgroup(ob_arm, def)) + totjoint++; + } + + COLLADASW::FloatSourceF source(mSW); + source.setId(source_id); + source.setArrayId(source_id + ARRAY_ID_SUFFIX); + source.setAccessorCount(totjoint); //BLI_countlist(defbase)); + source.setAccessorStride(16); + + source.setParameterTypeName(&COLLADASW::CSWC::CSW_VALUE_TYPE_FLOAT4x4); + COLLADASW::SourceBase::ParameterNameList ¶m = source.getParameterNameList(); + param.push_back("TRANSFORM"); + + source.prepareToAppendValues(); + + bPose *pose = ob_arm->pose; + bArmature *arm = (bArmature *)ob_arm->data; + + int flag = arm->flag; + + // put armature in rest position + if (!(arm->flag & ARM_RESTPOS)) { + arm->flag |= ARM_RESTPOS; + BKE_pose_where_is(scene, ob_arm); + } + + for (bDeformGroup *def = (bDeformGroup *)defbase->first; def; def = def->next) { + if (is_bone_defgroup(ob_arm, def)) { + bPoseChannel *pchan = BKE_pose_channel_find_name(pose, def->name); + + float mat[4][4]; + float world[4][4]; + float inv_bind_mat[4][4]; + + // SECOND_LIFE_COMPATIBILITY + if (export_settings->second_life) { + // Only translations, no rotation vs armature + float temp[4][4]; + unit_m4(temp); + copy_v3_v3(temp[3], pchan->bone->arm_mat[3]); + mult_m4_m4m4(world, ob_arm->obmat, temp); + } + else { + // make world-space matrix, arm_mat is armature-space + mult_m4_m4m4(world, ob_arm->obmat, pchan->bone->arm_mat); + } + + invert_m4_m4(mat, world); + converter.mat4_to_dae(inv_bind_mat, mat); + + source.appendValues(inv_bind_mat); + } + } + + // back from rest positon + if (!(flag & ARM_RESTPOS)) { + arm->flag = flag; + BKE_pose_where_is(scene, ob_arm); + } + + source.finish(); + + return source_id; +} + +Bone *ControllerExporter::get_bone_from_defgroup(Object *ob_arm, bDeformGroup *def) +{ + bPoseChannel *pchan = BKE_pose_channel_find_name(ob_arm->pose, def->name); + return pchan ? pchan->bone : NULL; +} + +bool ControllerExporter::is_bone_defgroup(Object *ob_arm, bDeformGroup *def) +{ + return get_bone_from_defgroup(ob_arm, def) != NULL; +} + +std::string ControllerExporter::add_weights_source(Mesh *me, const std::string& controller_id, const std::list<float>& weights) +{ + std::string source_id = controller_id + WEIGHTS_SOURCE_ID_SUFFIX; + + COLLADASW::FloatSourceF source(mSW); + source.setId(source_id); + source.setArrayId(source_id + ARRAY_ID_SUFFIX); + source.setAccessorCount(weights.size()); + source.setAccessorStride(1); + + COLLADASW::SourceBase::ParameterNameList ¶m = source.getParameterNameList(); + param.push_back("WEIGHT"); + + source.prepareToAppendValues(); + + for (std::list<float>::const_iterator i = weights.begin(); i != weights.end(); ++i) { + source.appendValues(*i); + } + + source.finish(); + + return source_id; +} + +void ControllerExporter::add_vertex_weights_element(const std::string& weights_source_id, const std::string& joints_source_id, + const std::list<int>& vcounts, + const std::list<int>& joints) +{ + COLLADASW::VertexWeightsElement weightselem(mSW); + COLLADASW::InputList &input = weightselem.getInputList(); + + int offset = 0; + input.push_back(COLLADASW::Input(COLLADASW::InputSemantic::JOINT, // constant declared in COLLADASWInputList.h + COLLADASW::URI(COLLADABU::Utils::EMPTY_STRING, joints_source_id), offset++)); + input.push_back(COLLADASW::Input(COLLADASW::InputSemantic::WEIGHT, + COLLADASW::URI(COLLADABU::Utils::EMPTY_STRING, weights_source_id), offset++)); + + weightselem.setCount(vcounts.size()); + + // write number of deformers per vertex + COLLADASW::PrimitivesBase::VCountList vcountlist; + + vcountlist.resize(vcounts.size()); + std::copy(vcounts.begin(), vcounts.end(), vcountlist.begin()); + + weightselem.prepareToAppendVCountValues(); + weightselem.appendVertexCount(vcountlist); + + weightselem.CloseVCountAndOpenVElement(); + + // write deformer index - weight index pairs + int weight_index = 0; + for (std::list<int>::const_iterator i = joints.begin(); i != joints.end(); ++i) { + weightselem.appendValues(*i, weight_index++); + } + + weightselem.finish(); +} |