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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 *****
*/
#include "GeometryExporter.h"
#include "AnimationExporter.h"
#include "MaterialExporter.h"
template<class Functor>
void forEachObjectInExportSet(Scene *sce, Functor &f, LinkNode *export_set)
{
LinkNode *node;
for (node = export_set; node; node = node->next) {
Object *ob = (Object *)node->link;
f(ob);
}
}
bool AnimationExporter::exportAnimations(EvaluationContext *eval_ctx, Scene *sce)
{
bool has_animations = hasAnimations(sce);
if (has_animations) {
this->eval_ctx = eval_ctx;
this->scene = sce;
openLibrary();
forEachObjectInExportSet(sce, *this, this->export_settings->export_set);
closeLibrary();
}
return has_animations;
}
bool AnimationExporter::is_flat_line(std::vector<float> &values, int channel_count)
{
for (int i = 0; i < values.size(); i += channel_count) {
for (int j = 0; j < channel_count; j++) {
if (!bc_in_range(values[j], values[i+j], 0.000001))
return false;
}
}
return true;
}
/*
* This function creates a complete LINEAR Collada <Animation> Entry with all needed
* <source>, <sampler>, and <channel> entries.
* This is is used for creating sampled Transformation Animations for either:
*
* 1-axis animation:
* times contains the time points in seconds from within the timeline
* values contains the data (list of single floats)
* channel_count = 1
* axis_name = ['X' | 'Y' | 'Z']
* is_rot indicates if the animation is a rotation
*
* 3-axis animation:
* times contains the time points in seconds from within the timeline
* values contains the data (list of floats where each 3 entries are one vector)
* channel_count = 3
* axis_name = "" (actually not used)
* is_rot = false (see xxx below)
*
* xxx: I tried to create a 3 axis rotation animation
* like for translation or scale. But i could not
* figure out how to setup the channel for this case.
* So for now rotations are exported as 3 separate 1-axis collada animations
* See export_sampled_animation() further down.
*/
void AnimationExporter::create_sampled_animation(int channel_count,
std::vector<float> ×,
std::vector<float> &values,
std::string ob_name,
std::string label,
std::string axis_name,
bool is_rot)
{
char anim_id[200];
if (is_flat_line(values, channel_count))
return;
BLI_snprintf(anim_id, sizeof(anim_id), "%s_%s_%s", (char *)translate_id(ob_name).c_str(), label.c_str(), axis_name.c_str());
openAnimation(anim_id, COLLADABU::Utils::EMPTY_STRING);
/* create input source */
std::string input_id = create_source_from_vector(COLLADASW::InputSemantic::INPUT, times, false, anim_id, "");
/* create output source */
std::string output_id;
if (channel_count == 1)
output_id = create_source_from_array(COLLADASW::InputSemantic::OUTPUT, &values[0], values.size(), is_rot, anim_id, axis_name.c_str());
else if (channel_count == 3)
output_id = create_xyz_source(&values[0], times.size(), anim_id);
else if (channel_count == 16)
output_id = create_4x4_source(times, values, anim_id);
std::string sampler_id = std::string(anim_id) + SAMPLER_ID_SUFFIX;
COLLADASW::LibraryAnimations::Sampler sampler(sw, sampler_id);
std::string empty;
sampler.addInput(COLLADASW::InputSemantic::INPUT, COLLADABU::URI(empty, input_id));
sampler.addInput(COLLADASW::InputSemantic::OUTPUT, COLLADABU::URI(empty, output_id));
/* TODO create in/out tangents source (LINEAR) */
std::string interpolation_id = fake_interpolation_source(times.size(), anim_id, "");
/* Create Sampler */
sampler.addInput(COLLADASW::InputSemantic::INTERPOLATION, COLLADABU::URI(empty, interpolation_id));
addSampler(sampler);
/* Create channel */
std::string target = translate_id(ob_name) + "/" + label + axis_name + ((is_rot) ? ".ANGLE" : "");
addChannel(COLLADABU::URI(empty, sampler_id), target);
closeAnimation();
}
/*
* Export all animation FCurves of an Object.
*
* Note: This uses the keyframes as sample points,
* and exports "baked keyframes" while keeping the tangent infromation
* of the FCurves intact. This works for simple cases, but breaks
* especially when negative scales are involved in the animation.
*
* If it is necessary to conserve the Animation precisely then
* use export_sampled_animation_set() instead.
*/
void AnimationExporter::export_keyframed_animation_set(Object *ob)
{
FCurve *fcu = (FCurve *)ob->adt->action->curves.first;
if (!fcu) {
return; /* object has no animation */
}
if (this->export_settings->export_transformation_type == BC_TRANSFORMATION_TYPE_MATRIX) {
std::vector<float> ctimes;
find_keyframes(ob, ctimes);
if (ctimes.size() > 0)
export_sampled_matrix_animation(ob, ctimes);
}
else {
char *transformName;
while (fcu) {
//for armature animations as objects
if (ob->type == OB_ARMATURE)
transformName = fcu->rna_path;
else
transformName = extract_transform_name(fcu->rna_path);
if (
STREQ(transformName, "location") ||
STREQ(transformName, "scale") ||
(STREQ(transformName, "rotation_euler") && ob->rotmode == ROT_MODE_EUL) ||
STREQ(transformName, "rotation_quaternion"))
{
create_keyframed_animation(ob, fcu, transformName, false);
}
fcu = fcu->next;
}
}
}
/*
* Export the sampled animation of an Object.
*
* Note: This steps over all animation frames (step size is given in export_settings.sample_size)
* and then evaluates the transformation,
* and exports "baked samples" This works always, however currently the interpolation type is set
* to LINEAR for now. (maybe later this can be changed to BEZIER)
*
* Note: If it is necessary to keep the FCurves intact, then use export_keyframed_animation_set() instead.
* However be aware that exporting keyframed animation may modify the animation slightly.
* Also keyframed animation exports tend to break when negative scales are involved.
*/
void AnimationExporter::export_sampled_animation_set(Object *ob)
{
std::vector<float>ctimes;
find_sampleframes(ob, ctimes);
if (ctimes.size() > 0) {
if (this->export_settings->export_transformation_type == BC_TRANSFORMATION_TYPE_MATRIX)
export_sampled_matrix_animation(ob, ctimes);
else
export_sampled_transrotloc_animation(ob, ctimes);
}
}
void AnimationExporter::export_sampled_matrix_animation(Object *ob, std::vector<float> &ctimes)
{
UnitConverter converter;
std::vector<float> values;
for (std::vector<float>::iterator ctime = ctimes.begin(); ctime != ctimes.end(); ++ctime) {
float fmat[4][4];
bc_update_scene(eval_ctx, scene, *ctime);
BKE_object_matrix_local_get(ob, fmat);
if (this->export_settings->limit_precision)
bc_sanitize_mat(fmat, 6);
for (int i = 0; i < 4; i++)
for (int j = 0; j < 4; j++)
values.push_back(fmat[i][j]);
}
std::string ob_name = id_name(ob);
create_sampled_animation(16, ctimes, values, ob_name, "transform", "", false);
}
void AnimationExporter::export_sampled_transrotloc_animation(Object *ob, std::vector<float> &ctimes)
{
static int LOC = 0;
static int EULX = 1;
static int EULY = 2;
static int EULZ = 3;
static int SCALE = 4;
std::vector<float> baked_curves[5];
for (std::vector<float>::iterator ctime = ctimes.begin(); ctime != ctimes.end(); ++ctime ) {
float fmat[4][4];
float floc[3];
float fquat[4];
float fsize[3];
float feul[3];
bc_update_scene(eval_ctx, scene, *ctime);
BKE_object_matrix_local_get(ob, fmat);
mat4_decompose(floc, fquat, fsize, fmat);
quat_to_eul(feul, fquat);
baked_curves[LOC].push_back(floc[0]);
baked_curves[LOC].push_back(floc[1]);
baked_curves[LOC].push_back(floc[2]);
baked_curves[EULX].push_back(feul[0]);
baked_curves[EULY].push_back(feul[1]);
baked_curves[EULZ].push_back(feul[2]);
baked_curves[SCALE].push_back(fsize[0]);
baked_curves[SCALE].push_back(fsize[1]);
baked_curves[SCALE].push_back(fsize[2]);
}
std::string ob_name = id_name(ob);
create_sampled_animation(3, ctimes, baked_curves[SCALE], ob_name, "scale", "", false);
create_sampled_animation(3, ctimes, baked_curves[LOC], ob_name, "location", "", false);
/* Not sure how to export rotation as a 3channel animation,
* so separate into 3 single animations for now:
*/
create_sampled_animation(1, ctimes, baked_curves[EULX], ob_name, "rotation", "X", true);
create_sampled_animation(1, ctimes, baked_curves[EULY], ob_name, "rotation", "Y", true);
create_sampled_animation(1, ctimes, baked_curves[EULZ], ob_name, "rotation", "Z", true);
fprintf(stdout, "Animation Export: Baked %d frames for %s (sampling rate: %d)\n",
(int)baked_curves[0].size(),
ob->id.name,
this->export_settings->sampling_rate);
}
/* called for each exported object */
void AnimationExporter::operator()(Object *ob)
{
char *transformName;
/* bool isMatAnim = false; */ /* UNUSED */
//Export transform animations
if (ob->adt && ob->adt->action) {
if (ob->type == OB_ARMATURE) {
/* Export skeletal animation (if any)*/
bArmature *arm = (bArmature *)ob->data;
for (Bone *bone = (Bone *)arm->bonebase.first; bone; bone = bone->next)
write_bone_animation_matrix(ob, bone);
}
/* Armatures can have object animation and skeletal animation*/
if (this->export_settings->sampling_rate < 1) {
export_keyframed_animation_set(ob);
}
else {
export_sampled_animation_set(ob);
}
}
export_object_constraint_animation(ob);
//This needs to be handled by extra profiles, so postponed for now
//export_morph_animation(ob);
//Export Lamp parameter animations
if ( (ob->type == OB_LAMP) && ((Lamp *)ob->data)->adt && ((Lamp *)ob->data)->adt->action) {
FCurve *fcu = (FCurve *)(((Lamp *)ob->data)->adt->action->curves.first);
while (fcu) {
transformName = extract_transform_name(fcu->rna_path);
if ((STREQ(transformName, "color")) || (STREQ(transformName, "spot_size")) ||
(STREQ(transformName, "spot_blend")) || (STREQ(transformName, "distance")))
{
create_keyframed_animation(ob, fcu, transformName, true);
}
fcu = fcu->next;
}
}
//Export Camera parameter animations
if ( (ob->type == OB_CAMERA) && ((Camera *)ob->data)->adt && ((Camera *)ob->data)->adt->action) {
FCurve *fcu = (FCurve *)(((Camera *)ob->data)->adt->action->curves.first);
while (fcu) {
transformName = extract_transform_name(fcu->rna_path);
if ((STREQ(transformName, "lens")) ||
(STREQ(transformName, "ortho_scale")) ||
(STREQ(transformName, "clip_end")) ||
(STREQ(transformName, "clip_start")))
{
create_keyframed_animation(ob, fcu, transformName, true);
}
fcu = fcu->next;
}
}
//Export Material parameter animations.
for (int a = 0; a < ob->totcol; a++) {
Material *ma = give_current_material(ob, a + 1);
if (!ma) continue;
if (ma->adt && ma->adt->action) {
/* isMatAnim = true; */
FCurve *fcu = (FCurve *)ma->adt->action->curves.first;
while (fcu) {
transformName = extract_transform_name(fcu->rna_path);
if ((STREQ(transformName, "specular_hardness")) || (STREQ(transformName, "specular_color")) ||
(STREQ(transformName, "diffuse_color")) || (STREQ(transformName, "alpha")) ||
(STREQ(transformName, "ior")))
{
create_keyframed_animation(ob, fcu, transformName, true, ma);
}
fcu = fcu->next;
}
}
}
}
void AnimationExporter::export_object_constraint_animation(Object *ob)
{
std::vector<float> fra;
//Takes frames of target animations
make_anim_frames_from_targets(ob, fra);
if (fra.size())
dae_baked_object_animation(fra, ob);
}
void AnimationExporter::export_morph_animation(Object *ob)
{
FCurve *fcu;
char *transformName;
Key *key = BKE_key_from_object(ob);
if (!key) return;
if (key->adt && key->adt->action) {
fcu = (FCurve *)key->adt->action->curves.first;
while (fcu) {
transformName = extract_transform_name(fcu->rna_path);
create_keyframed_animation(ob, fcu, transformName, true);
fcu = fcu->next;
}
}
}
void AnimationExporter::make_anim_frames_from_targets(Object *ob, std::vector<float> &frames )
{
ListBase *conlist = get_active_constraints(this->eval_ctx, ob);
if (conlist == NULL) return;
bConstraint *con;
for (con = (bConstraint *)conlist->first; con; con = con->next) {
ListBase targets = {NULL, NULL};
const bConstraintTypeInfo *cti = BKE_constraint_typeinfo_get(con);
if (!validateConstraints(con)) continue;
if (cti && cti->get_constraint_targets) {
bConstraintTarget *ct;
Object *obtar;
/* get targets
* - constraints should use ct->matrix, not directly accessing values
* - ct->matrix members have not yet been calculated here!
*/
cti->get_constraint_targets(con, &targets);
for (ct = (bConstraintTarget *)targets.first; ct; ct = ct->next) {
obtar = ct->tar;
if (obtar)
find_keyframes(obtar, frames);
}
if (cti->flush_constraint_targets)
cti->flush_constraint_targets(con, &targets, 1);
}
}
}
//euler sources from quternion sources
float *AnimationExporter::get_eul_source_for_quat(Object *ob)
{
FCurve *fcu = (FCurve *)ob->adt->action->curves.first;
const int keys = fcu->totvert;
float *quat = (float *)MEM_callocN(sizeof(float) * fcu->totvert * 4, "quat output source values");
float *eul = (float *)MEM_callocN(sizeof(float) * fcu->totvert * 3, "quat output source values");
float temp_quat[4];
float temp_eul[3];
while (fcu) {
char *transformName = extract_transform_name(fcu->rna_path);
if (STREQ(transformName, "rotation_quaternion") ) {
for (int i = 0; i < fcu->totvert; i++) {
*(quat + (i * 4) + fcu->array_index) = fcu->bezt[i].vec[1][1];
}
}
fcu = fcu->next;
}
for (int i = 0; i < keys; i++) {
for (int j = 0; j < 4; j++)
temp_quat[j] = quat[(i * 4) + j];
quat_to_eul(temp_eul, temp_quat);
for (int k = 0; k < 3; k++)
eul[i * 3 + k] = temp_eul[k];
}
MEM_freeN(quat);
return eul;
}
//Get proper name for bones
std::string AnimationExporter::getObjectBoneName(Object *ob, const FCurve *fcu)
{
//hard-way to derive the bone name from rna_path. Must find more compact method
std::string rna_path = std::string(fcu->rna_path);
char *boneName = strtok((char *)rna_path.c_str(), "\"");
boneName = strtok(NULL, "\"");
if (boneName != NULL)
return /*id_name(ob) + "_" +*/ std::string(boneName);
else
return id_name(ob);
}
std::string AnimationExporter::getAnimationPathId(const FCurve *fcu)
{
std::string rna_path = std::string(fcu->rna_path);
return translate_id(rna_path);
}
/* convert f-curves to animation curves and write */
void AnimationExporter::create_keyframed_animation(Object *ob, FCurve *fcu, char *transformName, bool is_param, Material *ma)
{
const char *axis_name = NULL;
char anim_id[200];
bool has_tangents = false;
bool quatRotation = false;
Object *obj = NULL;
if (STREQ(transformName, "rotation_quaternion") ) {
fprintf(stderr, "quaternion rotation curves are not supported. rotation curve will not be exported\n");
quatRotation = true;
return;
}
//axis names for colors
else if (STREQ(transformName, "color") ||
STREQ(transformName, "specular_color") ||
STREQ(transformName, "diffuse_color") ||
STREQ(transformName, "alpha"))
{
const char *axis_names[] = {"R", "G", "B"};
if (fcu->array_index < 3)
axis_name = axis_names[fcu->array_index];
}
/*
* Note: Handle transformation animations separately (to apply matrix inverse to fcurves)
* We will use the object to evaluate the animation on all keyframes and calculate the
* resulting object matrix. We need this to incorporate the
* effects of the parent inverse matrix (when it contains a rotation component)
*
* TODO: try to combine exported fcurves into 3 channel animations like done
* in export_sampled_animation(). For now each channel is exported as separate <Animation>.
*/
else if (
STREQ(transformName, "scale") ||
STREQ(transformName, "location") ||
STREQ(transformName, "rotation_euler"))
{
const char *axis_names[] = {"X", "Y", "Z"};
if (fcu->array_index < 3) {
axis_name = axis_names[fcu->array_index];
obj = ob;
}
}
else {
/* no axis name. single parameter */
axis_name = "";
}
std::string ob_name = std::string("null");
/* Create anim Id */
if (ob->type == OB_ARMATURE) {
ob_name = getObjectBoneName(ob, fcu);
BLI_snprintf(
anim_id,
sizeof(anim_id),
"%s_%s.%s",
(char *)translate_id(ob_name).c_str(),
(char *)translate_id(transformName).c_str(),
axis_name);
}
else {
if (ma)
ob_name = id_name(ob) + "_material";
else
ob_name = id_name(ob);
BLI_snprintf(
anim_id,
sizeof(anim_id),
"%s_%s_%s",
(char *)translate_id(ob_name).c_str(),
(char *)getAnimationPathId(fcu).c_str(),
axis_name);
}
openAnimation(anim_id, COLLADABU::Utils::EMPTY_STRING);
// create input source
std::string input_id = create_source_from_fcurve(COLLADASW::InputSemantic::INPUT, fcu, anim_id, axis_name);
// create output source
std::string output_id;
//quat rotations are skipped for now, because of complications with determining axis.
if (quatRotation) {
float *eul = get_eul_source_for_quat(ob);
float *eul_axis = (float *)MEM_callocN(sizeof(float) * fcu->totvert, "quat output source values");
for (int i = 0; i < fcu->totvert; i++) {
eul_axis[i] = eul[i * 3 + fcu->array_index];
}
output_id = create_source_from_array(COLLADASW::InputSemantic::OUTPUT, eul_axis, fcu->totvert, quatRotation, anim_id, axis_name);
MEM_freeN(eul);
MEM_freeN(eul_axis);
}
else if (STREQ(transformName, "lens") && (ob->type == OB_CAMERA)) {
output_id = create_lens_source_from_fcurve((Camera *) ob->data, COLLADASW::InputSemantic::OUTPUT, fcu, anim_id);
}
else {
output_id = create_source_from_fcurve(COLLADASW::InputSemantic::OUTPUT, fcu, anim_id, axis_name, obj);
}
// create interpolations source
std::string interpolation_id = create_interpolation_source(fcu, anim_id, axis_name, &has_tangents);
// handle tangents (if required)
std::string intangent_id;
std::string outtangent_id;
if (has_tangents) {
// create in_tangent source
intangent_id = create_source_from_fcurve(COLLADASW::InputSemantic::IN_TANGENT, fcu, anim_id, axis_name, obj);
// create out_tangent source
outtangent_id = create_source_from_fcurve(COLLADASW::InputSemantic::OUT_TANGENT, fcu, anim_id, axis_name, obj);
}
std::string sampler_id = std::string(anim_id) + SAMPLER_ID_SUFFIX;
COLLADASW::LibraryAnimations::Sampler sampler(sw, sampler_id);
std::string empty;
sampler.addInput(COLLADASW::InputSemantic::INPUT, COLLADABU::URI(empty, input_id));
sampler.addInput(COLLADASW::InputSemantic::OUTPUT, COLLADABU::URI(empty, output_id));
// this input is required
sampler.addInput(COLLADASW::InputSemantic::INTERPOLATION, COLLADABU::URI(empty, interpolation_id));
if (has_tangents) {
sampler.addInput(COLLADASW::InputSemantic::IN_TANGENT, COLLADABU::URI(empty, intangent_id));
sampler.addInput(COLLADASW::InputSemantic::OUT_TANGENT, COLLADABU::URI(empty, outtangent_id));
}
addSampler(sampler);
std::string target;
if (!is_param)
target = translate_id(ob_name) +
"/" + get_transform_sid(fcu->rna_path, -1, axis_name, true);
else {
if (ob->type == OB_LAMP)
target = get_light_id(ob) +
"/" + get_light_param_sid(fcu->rna_path, -1, axis_name, true);
if (ob->type == OB_CAMERA)
target = get_camera_id(ob) +
"/" + get_camera_param_sid(fcu->rna_path, -1, axis_name, true);
if (ma)
target = translate_id(id_name(ma)) + "-effect" +
"/common/" /*profile common is only supported */ + get_transform_sid(fcu->rna_path, -1, axis_name, true);
//if shape key animation, this is the main problem, how to define the channel targets.
/*target = get_morph_id(ob) +
"/value" +*/
}
addChannel(COLLADABU::URI(empty, sampler_id), target);
closeAnimation();
}
//write bone animations in transform matrix sources
void AnimationExporter::write_bone_animation_matrix(Object *ob_arm, Bone *bone)
{
if (!ob_arm->adt)
return;
//This will only export animations of bones in deform group.
/* if (!is_bone_deform_group(bone)) return; */
sample_and_write_bone_animation_matrix(ob_arm, bone);
for (Bone *child = (Bone *)bone->childbase.first; child; child = child->next)
write_bone_animation_matrix(ob_arm, child);
}
bool AnimationExporter::is_bone_deform_group(Bone *bone)
{
bool is_def;
//Check if current bone is deform
if ((bone->flag & BONE_NO_DEFORM) == 0) return true;
//Check child bones
else {
for (Bone *child = (Bone *)bone->childbase.first; child; child = child->next) {
//loop through all the children until deform bone is found, and then return
is_def = is_bone_deform_group(child);
if (is_def) return true;
}
}
//no deform bone found in children also
return false;
}
void AnimationExporter::sample_and_write_bone_animation_matrix(Object *ob_arm, Bone *bone)
{
bArmature *arm = (bArmature *)ob_arm->data;
int flag = arm->flag;
std::vector<float> fra;
//char prefix[256];
//Check if there is a fcurve in the armature for the bone in param
//when baking this check is not needed, solve every bone for every frame.
/*FCurve *fcu = (FCurve *)ob_arm->adt->action->curves.first;
while (fcu) {
std::string bone_name = getObjectBoneName(ob_arm, fcu);
int val = BLI_strcasecmp((char *)bone_name.c_str(), bone->name);
if (val == 0) break;
fcu = fcu->next;
}
if (!(fcu)) return;*/
bPoseChannel *pchan = BKE_pose_channel_find_name(ob_arm->pose, bone->name);
if (!pchan)
return;
if (this->export_settings->sampling_rate < 1)
find_keyframes(ob_arm, fra);
else
find_sampleframes(ob_arm, fra);
if (flag & ARM_RESTPOS) {
arm->flag &= ~ARM_RESTPOS;
BKE_pose_where_is(eval_ctx, scene, ob_arm);
}
if (fra.size()) {
dae_baked_animation(fra, ob_arm, bone);
}
if (flag & ARM_RESTPOS)
arm->flag = flag;
BKE_pose_where_is(eval_ctx, scene, ob_arm);
}
void AnimationExporter::dae_baked_animation(std::vector<float> &fra, Object *ob_arm, Bone *bone)
{
std::string ob_name = id_name(ob_arm);
std::string bone_name = bone->name;
char anim_id[200];
if (!fra.size())
return;
BLI_snprintf(anim_id, sizeof(anim_id), "%s_%s_%s", (char *)translate_id(ob_name).c_str(),
(char *)translate_id(bone_name).c_str(), "pose_matrix");
openAnimation(anim_id, COLLADABU::Utils::EMPTY_STRING);
// create input source
std::string input_id = create_source_from_vector(COLLADASW::InputSemantic::INPUT, fra, false, anim_id, "");
// create output source
std::string output_id;
output_id = create_4x4_source(fra, ob_arm, bone, anim_id);
// create interpolations source
std::string interpolation_id = fake_interpolation_source(fra.size(), anim_id, "");
std::string sampler_id = std::string(anim_id) + SAMPLER_ID_SUFFIX;
COLLADASW::LibraryAnimations::Sampler sampler(sw, sampler_id);
std::string empty;
sampler.addInput(COLLADASW::InputSemantic::INPUT, COLLADABU::URI(empty, input_id));
sampler.addInput(COLLADASW::InputSemantic::OUTPUT, COLLADABU::URI(empty, output_id));
// TODO create in/out tangents source
// this input is required
sampler.addInput(COLLADASW::InputSemantic::INTERPOLATION, COLLADABU::URI(empty, interpolation_id));
addSampler(sampler);
std::string target = get_joint_id(bone, ob_arm) + "/transform";
addChannel(COLLADABU::URI(empty, sampler_id), target);
closeAnimation();
}
void AnimationExporter::dae_baked_object_animation(std::vector<float> &fra, Object *ob)
{
std::string ob_name = id_name(ob);
char anim_id[200];
if (!fra.size())
return;
BLI_snprintf(anim_id, sizeof(anim_id), "%s_%s", (char *)translate_id(ob_name).c_str(),
"object_matrix");
openAnimation(anim_id, COLLADABU::Utils::EMPTY_STRING);
// create input source
std::string input_id = create_source_from_vector(COLLADASW::InputSemantic::INPUT, fra, false, anim_id, "");
// create output source
std::string output_id;
output_id = create_4x4_source( fra, ob, NULL, anim_id);
// create interpolations source
std::string interpolation_id = fake_interpolation_source(fra.size(), anim_id, "");
std::string sampler_id = std::string(anim_id) + SAMPLER_ID_SUFFIX;
COLLADASW::LibraryAnimations::Sampler sampler(sw, sampler_id);
std::string empty;
sampler.addInput(COLLADASW::InputSemantic::INPUT, COLLADABU::URI(empty, input_id));
sampler.addInput(COLLADASW::InputSemantic::OUTPUT, COLLADABU::URI(empty, output_id));
// TODO create in/out tangents source
// this input is required
sampler.addInput(COLLADASW::InputSemantic::INTERPOLATION, COLLADABU::URI(empty, interpolation_id));
addSampler(sampler);
std::string target = translate_id(ob_name) + "/transform";
addChannel(COLLADABU::URI(empty, sampler_id), target);
closeAnimation();
}
// dae_bone_animation -> add_bone_animation
// (blend this into dae_bone_animation)
void AnimationExporter::dae_bone_animation(std::vector<float> &fra, float *values, int tm_type, int axis, std::string ob_name, std::string bone_name)
{
const char *axis_names[] = {"X", "Y", "Z"};
const char *axis_name = NULL;
char anim_id[200];
bool is_rot = tm_type == 0;
if (!fra.size())
return;
char rna_path[200];
BLI_snprintf(rna_path, sizeof(rna_path), "pose.bones[\"%s\"].%s", bone_name.c_str(),
tm_type == 0 ? "rotation_quaternion" : (tm_type == 1 ? "scale" : "location"));
if (axis > -1)
axis_name = axis_names[axis];
std::string transform_sid = get_transform_sid(NULL, tm_type, axis_name, false);
BLI_snprintf(anim_id, sizeof(anim_id), "%s_%s_%s", (char *)translate_id(ob_name).c_str(),
(char *)translate_id(bone_name).c_str(), (char *)transform_sid.c_str());
openAnimation(anim_id, COLLADABU::Utils::EMPTY_STRING);
// create input source
std::string input_id = create_source_from_vector(COLLADASW::InputSemantic::INPUT, fra, is_rot, anim_id, axis_name);
// create output source
std::string output_id;
if (axis == -1)
output_id = create_xyz_source(values, fra.size(), anim_id);
else
output_id = create_source_from_array(COLLADASW::InputSemantic::OUTPUT, values, fra.size(), is_rot, anim_id, axis_name);
// create interpolations source
std::string interpolation_id = fake_interpolation_source(fra.size(), anim_id, axis_name);
std::string sampler_id = std::string(anim_id) + SAMPLER_ID_SUFFIX;
COLLADASW::LibraryAnimations::Sampler sampler(sw, sampler_id);
std::string empty;
sampler.addInput(COLLADASW::InputSemantic::INPUT, COLLADABU::URI(empty, input_id));
sampler.addInput(COLLADASW::InputSemantic::OUTPUT, COLLADABU::URI(empty, output_id));
// TODO create in/out tangents source
// this input is required
sampler.addInput(COLLADASW::InputSemantic::INTERPOLATION, COLLADABU::URI(empty, interpolation_id));
addSampler(sampler);
std::string target = translate_id(ob_name + "_" + bone_name) + "/" + transform_sid;
addChannel(COLLADABU::URI(empty, sampler_id), target);
closeAnimation();
}
float AnimationExporter::convert_time(float frame)
{
return FRA2TIME(frame);
}
float AnimationExporter::convert_angle(float angle)
{
return COLLADABU::Math::Utils::radToDegF(angle);
}
std::string AnimationExporter::get_semantic_suffix(COLLADASW::InputSemantic::Semantics semantic)
{
switch (semantic) {
case COLLADASW::InputSemantic::INPUT:
return INPUT_SOURCE_ID_SUFFIX;
case COLLADASW::InputSemantic::OUTPUT:
return OUTPUT_SOURCE_ID_SUFFIX;
case COLLADASW::InputSemantic::INTERPOLATION:
return INTERPOLATION_SOURCE_ID_SUFFIX;
case COLLADASW::InputSemantic::IN_TANGENT:
return INTANGENT_SOURCE_ID_SUFFIX;
case COLLADASW::InputSemantic::OUT_TANGENT:
return OUTTANGENT_SOURCE_ID_SUFFIX;
default:
break;
}
return "";
}
void AnimationExporter::add_source_parameters(COLLADASW::SourceBase::ParameterNameList& param,
COLLADASW::InputSemantic::Semantics semantic, bool is_rot, const char *axis, bool transform)
{
switch (semantic) {
case COLLADASW::InputSemantic::INPUT:
param.push_back("TIME");
break;
case COLLADASW::InputSemantic::OUTPUT:
if (is_rot) {
param.push_back("ANGLE");
}
else {
if (axis) {
param.push_back(axis);
}
else
if (transform) {
param.push_back("TRANSFORM");
}
else { //assumes if axis isn't specified all axises are added
param.push_back("X");
param.push_back("Y");
param.push_back("Z");
}
}
break;
case COLLADASW::InputSemantic::IN_TANGENT:
case COLLADASW::InputSemantic::OUT_TANGENT:
param.push_back("X");
param.push_back("Y");
break;
default:
break;
}
}
void AnimationExporter::get_source_values(BezTriple *bezt, COLLADASW::InputSemantic::Semantics semantic, bool is_angle, float *values, int *length)
{
switch (semantic) {
case COLLADASW::InputSemantic::INPUT:
*length = 1;
values[0] = convert_time(bezt->vec[1][0]);
break;
case COLLADASW::InputSemantic::OUTPUT:
*length = 1;
if (is_angle) {
values[0] = RAD2DEGF(bezt->vec[1][1]);
}
else {
values[0] = bezt->vec[1][1];
}
break;
case COLLADASW::InputSemantic::IN_TANGENT:
*length = 2;
values[0] = convert_time(bezt->vec[0][0]);
if (bezt->ipo != BEZT_IPO_BEZ) {
// We're in a mixed interpolation scenario, set zero as it's irrelevant but value might contain unused data
values[0] = 0;
values[1] = 0;
}
else if (is_angle) {
values[1] = RAD2DEGF(bezt->vec[0][1]);
}
else {
values[1] = bezt->vec[0][1];
}
break;
case COLLADASW::InputSemantic::OUT_TANGENT:
*length = 2;
values[0] = convert_time(bezt->vec[2][0]);
if (bezt->ipo != BEZT_IPO_BEZ) {
// We're in a mixed interpolation scenario, set zero as it's irrelevant but value might contain unused data
values[0] = 0;
values[1] = 0;
}
else if (is_angle) {
values[1] = RAD2DEGF(bezt->vec[2][1]);
}
else {
values[1] = bezt->vec[2][1];
}
break;
default:
*length = 0;
break;
}
}
// old function to keep compatibility for calls where offset and object are not needed
std::string AnimationExporter::create_source_from_fcurve(COLLADASW::InputSemantic::Semantics semantic, FCurve *fcu, const std::string& anim_id, const char *axis_name)
{
return create_source_from_fcurve(semantic, fcu, anim_id, axis_name, NULL);
}
void AnimationExporter::evaluate_anim_with_constraints(Object *ob, float ctime)
{
BKE_animsys_evaluate_animdata(scene, &ob->id, ob->adt, ctime, ADT_RECALC_ALL);
ListBase *conlist = get_active_constraints(this->eval_ctx, ob);
bConstraint *con;
for (con = (bConstraint *)conlist->first; con; con = con->next) {
ListBase targets = { NULL, NULL };
const bConstraintTypeInfo *cti = BKE_constraint_typeinfo_get(con);
if (cti && cti->get_constraint_targets) {
bConstraintTarget *ct;
Object *obtar;
cti->get_constraint_targets(con, &targets);
for (ct = (bConstraintTarget *)targets.first; ct; ct = ct->next) {
obtar = ct->tar;
if (obtar) {
BKE_animsys_evaluate_animdata(scene, &obtar->id, obtar->adt, ctime, ADT_RECALC_ANIM);
BKE_object_where_is_calc_time(this->eval_ctx, scene, obtar, ctime);
}
}
if (cti->flush_constraint_targets)
cti->flush_constraint_targets(con, &targets, 1);
}
}
BKE_object_where_is_calc_time(this->eval_ctx, scene, ob, ctime);
}
/*
* ob is needed to aply parent inverse information to fcurve.
* TODO: Here we have to step over all keyframes for each object and for each fcurve.
* Instead of processing each fcurve one by one,
* step over the animation from keyframe to keyframe,
* then create adjusted fcurves (and entries) for all affected objects.
* Then we would need to step through the scene only once.
*/
std::string AnimationExporter::create_source_from_fcurve(COLLADASW::InputSemantic::Semantics semantic, FCurve *fcu, const std::string& anim_id, const char *axis_name, Object *ob)
{
std::string source_id = anim_id + get_semantic_suffix(semantic);
bool is_angle = (strstr(fcu->rna_path, "rotation") || strstr(fcu->rna_path, "spot_size"));
bool is_euler = strstr(fcu->rna_path, "rotation_euler");
bool is_translation = strstr(fcu->rna_path, "location");
bool is_scale = strstr(fcu->rna_path, "scale");
bool is_tangent = false;
int offset_index = 0;
COLLADASW::FloatSourceF source(mSW);
source.setId(source_id);
source.setArrayId(source_id + ARRAY_ID_SUFFIX);
source.setAccessorCount(fcu->totvert);
switch (semantic) {
case COLLADASW::InputSemantic::INPUT:
case COLLADASW::InputSemantic::OUTPUT:
source.setAccessorStride(1);
offset_index = 0;
break;
case COLLADASW::InputSemantic::IN_TANGENT:
case COLLADASW::InputSemantic::OUT_TANGENT:
source.setAccessorStride(2);
offset_index = 1;
is_tangent = true;
break;
default:
break;
}
COLLADASW::SourceBase::ParameterNameList ¶m = source.getParameterNameList();
add_source_parameters(param, semantic, is_angle, axis_name, false);
source.prepareToAppendValues();
for (unsigned int frame_index = 0; frame_index < fcu->totvert; frame_index++) {
float fixed_val = 0;
if (ob) {
float fmat[4][4];
float frame = fcu->bezt[frame_index].vec[1][0];
float ctime = BKE_scene_frame_get_from_ctime(scene, frame);
evaluate_anim_with_constraints(ob, ctime); // set object transforms to fcurve's i'th keyframe
BKE_object_matrix_local_get(ob, fmat);
float floc[3];
float fquat[4];
float fsize[3];
mat4_decompose(floc, fquat, fsize, fmat);
if (is_euler) {
float eul[3];
quat_to_eul(eul, fquat);
fixed_val = RAD2DEGF(eul[fcu->array_index]);
}
else if (is_translation) {
fixed_val = floc[fcu->array_index];
}
else if (is_scale) {
fixed_val = fsize[fcu->array_index];
}
}
float values[3]; // be careful!
float offset = 0;
int length = 0;
get_source_values(&fcu->bezt[frame_index], semantic, is_angle, values, &length);
if (is_tangent) {
float bases[3];
int len = 0;
get_source_values(&fcu->bezt[frame_index], COLLADASW::InputSemantic::OUTPUT, is_angle, bases, &len);
offset = values[offset_index] - bases[0];
}
for (int j = 0; j < length; j++) {
float val;
if (j == offset_index) {
if (ob) {
val = fixed_val + offset;
}
else {
val = values[j] + offset;
}
} else {
val = values[j];
}
source.appendValues(val);
}
}
source.finish();
return source_id;
}
/*
* Similar to create_source_from_fcurve, but adds conversion of lens
* animation data from focal length to FOV.
*/
std::string AnimationExporter::create_lens_source_from_fcurve(Camera *cam, COLLADASW::InputSemantic::Semantics semantic, FCurve *fcu, const std::string& anim_id)
{
std::string source_id = anim_id + get_semantic_suffix(semantic);
COLLADASW::FloatSourceF source(mSW);
source.setId(source_id);
source.setArrayId(source_id + ARRAY_ID_SUFFIX);
source.setAccessorCount(fcu->totvert);
source.setAccessorStride(1);
COLLADASW::SourceBase::ParameterNameList ¶m = source.getParameterNameList();
add_source_parameters(param, semantic, false, "", false);
source.prepareToAppendValues();
for (unsigned int i = 0; i < fcu->totvert; i++) {
float values[3]; // be careful!
int length = 0;
get_source_values(&fcu->bezt[i], semantic, false, values, &length);
for (int j = 0; j < length; j++)
{
float val = RAD2DEGF(focallength_to_fov(values[j], cam->sensor_x));
source.appendValues(val);
}
}
source.finish();
return source_id;
}
/*
* only to get OUTPUT source values ( if rotation and hence the axis is also specified )
*/
std::string AnimationExporter::create_source_from_array(COLLADASW::InputSemantic::Semantics semantic, float *v, int tot, bool is_rot, const std::string& anim_id, const char *axis_name)
{
std::string source_id = anim_id + get_semantic_suffix(semantic);
COLLADASW::FloatSourceF source(mSW);
source.setId(source_id);
source.setArrayId(source_id + ARRAY_ID_SUFFIX);
source.setAccessorCount(tot);
source.setAccessorStride(1);
COLLADASW::SourceBase::ParameterNameList ¶m = source.getParameterNameList();
add_source_parameters(param, semantic, is_rot, axis_name, false);
source.prepareToAppendValues();
for (int i = 0; i < tot; i++) {
float val = v[i];
////if (semantic == COLLADASW::InputSemantic::INPUT)
// val = convert_time(val);
//else
if (is_rot)
val = RAD2DEGF(val);
source.appendValues(val);
}
source.finish();
return source_id;
}
/*
* only used for sources with INPUT semantic
*/
std::string AnimationExporter::create_source_from_vector(COLLADASW::InputSemantic::Semantics semantic, std::vector<float> &fra, bool is_rot, const std::string& anim_id, const char *axis_name)
{
std::string source_id = anim_id + get_semantic_suffix(semantic);
COLLADASW::FloatSourceF source(mSW);
source.setId(source_id);
source.setArrayId(source_id + ARRAY_ID_SUFFIX);
source.setAccessorCount(fra.size());
source.setAccessorStride(1);
COLLADASW::SourceBase::ParameterNameList ¶m = source.getParameterNameList();
add_source_parameters(param, semantic, is_rot, axis_name, false);
source.prepareToAppendValues();
std::vector<float>::iterator it;
for (it = fra.begin(); it != fra.end(); it++) {
float val = *it;
//if (semantic == COLLADASW::InputSemantic::INPUT)
val = convert_time(val);
/*else if (is_rot)
val = convert_angle(val);*/
source.appendValues(val);
}
source.finish();
return source_id;
}
std::string AnimationExporter::create_4x4_source(std::vector<float> &ctimes, std::vector<float> &values , const std::string &anim_id)
{
COLLADASW::InputSemantic::Semantics semantic = COLLADASW::InputSemantic::OUTPUT;
std::string source_id = anim_id + get_semantic_suffix(semantic);
COLLADASW::Float4x4Source source(mSW);
source.setId(source_id);
source.setArrayId(source_id + ARRAY_ID_SUFFIX);
source.setAccessorCount(ctimes.size());
source.setAccessorStride(16);
COLLADASW::SourceBase::ParameterNameList ¶m = source.getParameterNameList();
add_source_parameters(param, semantic, false, NULL, true);
source.prepareToAppendValues();
std::vector<float>::iterator it;
for (it = values.begin(); it != values.end(); it+=16) {
float mat[4][4];
bc_copy_m4_farray(mat, &*it);
UnitConverter converter;
double outmat[4][4];
converter.mat4_to_dae_double(outmat, mat);
if (this->export_settings->limit_precision)
bc_sanitize_mat(outmat, 6);
source.appendValues(outmat);
}
source.finish();
return source_id;
}
std::string AnimationExporter::create_4x4_source(std::vector<float> &frames, Object *ob, Bone *bone, const std::string &anim_id)
{
bool is_bone_animation = ob->type == OB_ARMATURE && bone;
COLLADASW::InputSemantic::Semantics semantic = COLLADASW::InputSemantic::OUTPUT;
std::string source_id = anim_id + get_semantic_suffix(semantic);
COLLADASW::Float4x4Source source(mSW);
source.setId(source_id);
source.setArrayId(source_id + ARRAY_ID_SUFFIX);
source.setAccessorCount(frames.size());
source.setAccessorStride(16);
COLLADASW::SourceBase::ParameterNameList ¶m = source.getParameterNameList();
add_source_parameters(param, semantic, false, NULL, true);
source.prepareToAppendValues();
bPoseChannel *parchan = NULL;
bPoseChannel *pchan = NULL;
if (is_bone_animation) {
bPose *pose = ob->pose;
pchan = BKE_pose_channel_find_name(pose, bone->name);
if (!pchan)
return "";
parchan = pchan->parent;
enable_fcurves(ob->adt->action, bone->name);
}
std::vector<float>::iterator it;
int j = 0;
for (it = frames.begin(); it != frames.end(); it++) {
float mat[4][4], ipar[4][4];
float frame = *it;
float ctime = BKE_scene_frame_get_from_ctime(scene, frame);
bc_update_scene(eval_ctx, scene, ctime);
if (is_bone_animation) {
if (pchan->flag & POSE_CHAIN) {
enable_fcurves(ob->adt->action, NULL);
BKE_animsys_evaluate_animdata(scene, &ob->id, ob->adt, ctime, ADT_RECALC_ALL);
BKE_pose_where_is(eval_ctx, scene, ob);
}
else {
BKE_pose_where_is_bone(eval_ctx, scene, ob, pchan, ctime, 1);
}
// compute bone local mat
if (bone->parent) {
invert_m4_m4(ipar, parchan->pose_mat);
mul_m4_m4m4(mat, ipar, pchan->pose_mat);
}
else
copy_m4_m4(mat, pchan->pose_mat);
/* OPEN_SIM_COMPATIBILITY
* AFAIK animation to second life is via BVH, but no
* reason to not have the collada-animation be correct
*/
if (export_settings->open_sim) {
float temp[4][4];
copy_m4_m4(temp, bone->arm_mat);
temp[3][0] = temp[3][1] = temp[3][2] = 0.0f;
invert_m4(temp);
mul_m4_m4m4(mat, mat, temp);
if (bone->parent) {
copy_m4_m4(temp, bone->parent->arm_mat);
temp[3][0] = temp[3][1] = temp[3][2] = 0.0f;
mul_m4_m4m4(mat, temp, mat);
}
}
}
else {
copy_m4_m4(mat, ob->obmat);
}
UnitConverter converter;
double outmat[4][4];
converter.mat4_to_dae_double(outmat, mat);
if (this->export_settings->limit_precision)
bc_sanitize_mat(outmat, 6);
source.appendValues(outmat);
j++;
BIK_release_tree(scene, ob, ctime);
}
if (ob->adt) {
enable_fcurves(ob->adt->action, NULL);
}
source.finish();
return source_id;
}
/*
* only used for sources with OUTPUT semantic ( locations and scale)
*/
std::string AnimationExporter::create_xyz_source(float *v, int tot, const std::string& anim_id)
{
COLLADASW::InputSemantic::Semantics semantic = COLLADASW::InputSemantic::OUTPUT;
std::string source_id = anim_id + get_semantic_suffix(semantic);
COLLADASW::FloatSourceF source(mSW);
source.setId(source_id);
source.setArrayId(source_id + ARRAY_ID_SUFFIX);
source.setAccessorCount(tot);
source.setAccessorStride(3);
COLLADASW::SourceBase::ParameterNameList ¶m = source.getParameterNameList();
add_source_parameters(param, semantic, false, NULL, false);
source.prepareToAppendValues();
for (int i = 0; i < tot; i++) {
source.appendValues(*v, *(v + 1), *(v + 2));
v += 3;
}
source.finish();
return source_id;
}
std::string AnimationExporter::create_interpolation_source(FCurve *fcu, const std::string& anim_id, const char *axis_name, bool *has_tangents)
{
std::string source_id = anim_id + get_semantic_suffix(COLLADASW::InputSemantic::INTERPOLATION);
COLLADASW::NameSource source(mSW);
source.setId(source_id);
source.setArrayId(source_id + ARRAY_ID_SUFFIX);
source.setAccessorCount(fcu->totvert);
source.setAccessorStride(1);
COLLADASW::SourceBase::ParameterNameList ¶m = source.getParameterNameList();
param.push_back("INTERPOLATION");
source.prepareToAppendValues();
*has_tangents = false;
for (unsigned int i = 0; i < fcu->totvert; i++) {
if (fcu->bezt[i].ipo == BEZT_IPO_BEZ) {
source.appendValues(BEZIER_NAME);
*has_tangents = true;
}
else if (fcu->bezt[i].ipo == BEZT_IPO_CONST) {
source.appendValues(STEP_NAME);
}
else { // BEZT_IPO_LIN
source.appendValues(LINEAR_NAME);
}
}
// unsupported? -- HERMITE, CARDINAL, BSPLINE, NURBS
source.finish();
return source_id;
}
std::string AnimationExporter::fake_interpolation_source(int tot, const std::string& anim_id, const char *axis_name)
{
std::string source_id = anim_id + get_semantic_suffix(COLLADASW::InputSemantic::INTERPOLATION);
COLLADASW::NameSource source(mSW);
source.setId(source_id);
source.setArrayId(source_id + ARRAY_ID_SUFFIX);
source.setAccessorCount(tot);
source.setAccessorStride(1);
COLLADASW::SourceBase::ParameterNameList ¶m = source.getParameterNameList();
param.push_back("INTERPOLATION");
source.prepareToAppendValues();
for (int i = 0; i < tot; i++) {
source.appendValues(LINEAR_NAME);
}
source.finish();
return source_id;
}
std::string AnimationExporter::get_light_param_sid(char *rna_path, int tm_type, const char *axis_name, bool append_axis)
{
std::string tm_name;
// when given rna_path, determine tm_type from it
if (rna_path) {
char *name = extract_transform_name(rna_path);
if (STREQ(name, "color"))
tm_type = 1;
else if (STREQ(name, "spot_size"))
tm_type = 2;
else if (STREQ(name, "spot_blend"))
tm_type = 3;
else if (STREQ(name, "distance"))
tm_type = 4;
else
tm_type = -1;
}
switch (tm_type) {
case 1:
tm_name = "color";
break;
case 2:
tm_name = "fall_off_angle";
break;
case 3:
tm_name = "fall_off_exponent";
break;
case 4:
tm_name = "blender/blender_dist";
break;
default:
tm_name = "";
break;
}
if (tm_name.size()) {
if (axis_name[0])
return tm_name + "." + std::string(axis_name);
else
return tm_name;
}
return std::string("");
}
std::string AnimationExporter::get_camera_param_sid(char *rna_path, int tm_type, const char *axis_name, bool append_axis)
{
std::string tm_name;
// when given rna_path, determine tm_type from it
if (rna_path) {
char *name = extract_transform_name(rna_path);
if (STREQ(name, "lens"))
tm_type = 0;
else if (STREQ(name, "ortho_scale"))
tm_type = 1;
else if (STREQ(name, "clip_end"))
tm_type = 2;
else if (STREQ(name, "clip_start"))
tm_type = 3;
else
tm_type = -1;
}
switch (tm_type) {
case 0:
tm_name = "xfov";
break;
case 1:
tm_name = "xmag";
break;
case 2:
tm_name = "zfar";
break;
case 3:
tm_name = "znear";
break;
default:
tm_name = "";
break;
}
if (tm_name.size()) {
if (axis_name[0])
return tm_name + "." + std::string(axis_name);
else
return tm_name;
}
return std::string("");
}
/*
* Assign sid of the animated parameter or transform for rotation,
* axis name is always appended and the value of append_axis is ignored
*/
std::string AnimationExporter::get_transform_sid(char *rna_path, int tm_type, const char *axis_name, bool append_axis)
{
std::string tm_name;
bool is_angle = false;
// when given rna_path, determine tm_type from it
if (rna_path) {
char *name = extract_transform_name(rna_path);
if (STREQ(name, "rotation_euler"))
tm_type = 0;
else if (STREQ(name, "rotation_quaternion"))
tm_type = 1;
else if (STREQ(name, "scale"))
tm_type = 2;
else if (STREQ(name, "location"))
tm_type = 3;
else if (STREQ(name, "specular_hardness"))
tm_type = 4;
else if (STREQ(name, "specular_color"))
tm_type = 5;
else if (STREQ(name, "diffuse_color"))
tm_type = 6;
else if (STREQ(name, "alpha"))
tm_type = 7;
else if (STREQ(name, "ior"))
tm_type = 8;
else
tm_type = -1;
}
switch (tm_type) {
case 0:
case 1:
tm_name = "rotation";
is_angle = true;
break;
case 2:
tm_name = "scale";
break;
case 3:
tm_name = "location";
break;
case 4:
tm_name = "shininess";
break;
case 5:
tm_name = "specular";
break;
case 6:
tm_name = "diffuse";
break;
case 7:
tm_name = "transparency";
break;
case 8:
tm_name = "index_of_refraction";
break;
default:
tm_name = "";
break;
}
if (tm_name.size()) {
if (is_angle)
return tm_name + std::string(axis_name) + ".ANGLE";
else
if (axis_name[0])
return tm_name + "." + std::string(axis_name);
else
return tm_name;
}
return std::string("");
}
char *AnimationExporter::extract_transform_name(char *rna_path)
{
char *dot = strrchr(rna_path, '.');
return dot ? (dot + 1) : rna_path;
}
/*
* enable fcurves driving a specific bone, disable all the rest
* if bone_name = NULL enable all fcurves
*/
void AnimationExporter::enable_fcurves(bAction *act, char *bone_name)
{
FCurve *fcu;
char prefix[200];
if (bone_name)
BLI_snprintf(prefix, sizeof(prefix), "pose.bones[\"%s\"]", bone_name);
for (fcu = (FCurve *)act->curves.first; fcu; fcu = fcu->next) {
if (bone_name) {
if (STREQLEN(fcu->rna_path, prefix, strlen(prefix)))
fcu->flag &= ~FCURVE_DISABLED;
else
fcu->flag |= FCURVE_DISABLED;
}
else {
fcu->flag &= ~FCURVE_DISABLED;
}
}
}
bool AnimationExporter::hasAnimations(Scene *sce)
{
LinkNode *node;
for (node=this->export_settings->export_set; node; node=node->next) {
Object *ob = (Object *)node->link;
FCurve *fcu = 0;
//Check for object transform animations
if (ob->adt && ob->adt->action)
fcu = (FCurve *)ob->adt->action->curves.first;
//Check for Lamp parameter animations
else if ( (ob->type == OB_LAMP) && ((Lamp *)ob->data)->adt && ((Lamp *)ob->data)->adt->action)
fcu = (FCurve *)(((Lamp *)ob->data)->adt->action->curves.first);
//Check for Camera parameter animations
else if ( (ob->type == OB_CAMERA) && ((Camera *)ob->data)->adt && ((Camera *)ob->data)->adt->action)
fcu = (FCurve *)(((Camera *)ob->data)->adt->action->curves.first);
//Check Material Effect parameter animations.
for (int a = 0; a < ob->totcol; a++) {
Material *ma = give_current_material(ob, a + 1);
if (!ma) continue;
if (ma->adt && ma->adt->action) {
fcu = (FCurve *)ma->adt->action->curves.first;
}
}
//check shape key animation
if (!fcu) {
Key *key = BKE_key_from_object(ob);
if (key && key->adt && key->adt->action)
fcu = (FCurve *)key->adt->action->curves.first;
}
if (fcu)
return true;
}
return false;
}
//------------------------------- Not used in the new system.--------------------------------------------------------
void AnimationExporter::find_rotation_frames(Object *ob, std::vector<float> &fra, const char *prefix, int rotmode)
{
if (rotmode > 0)
find_keyframes(ob, fra, prefix, "rotation_euler");
else if (rotmode == ROT_MODE_QUAT)
find_keyframes(ob, fra, prefix, "rotation_quaternion");
/*else if (rotmode == ROT_MODE_AXISANGLE)
;*/
}
/* Take care to always have the first frame and the last frame in the animation
* regardless of the sampling_rate setting
*/
void AnimationExporter::find_sampleframes(Object *ob, std::vector<float> &fra)
{
int frame = scene->r.sfra;
do {
float ctime = BKE_scene_frame_get_from_ctime(scene, frame);
fra.push_back(ctime);
if (frame == scene->r.efra)
break;
frame += this->export_settings->sampling_rate;
if (frame > scene->r.efra)
frame = scene->r.efra; // make sure the last frame is always exported
} while (true);
}
/*
* find keyframes of all the objects animations
*/
void AnimationExporter::find_keyframes(Object *ob, std::vector<float> &fra)
{
if (ob->adt && ob->adt->action) {
FCurve *fcu = (FCurve *)ob->adt->action->curves.first;
for (; fcu; fcu = fcu->next) {
for (unsigned int i = 0; i < fcu->totvert; i++) {
float f = fcu->bezt[i].vec[1][0];
if (std::find(fra.begin(), fra.end(), f) == fra.end())
fra.push_back(f);
}
}
// keep the keys in ascending order
std::sort(fra.begin(), fra.end());
}
}
void AnimationExporter::find_keyframes(Object *ob, std::vector<float> &fra, const char *prefix, const char *tm_name)
{
if (ob->adt && ob->adt->action) {
FCurve *fcu = (FCurve *)ob->adt->action->curves.first;
for (; fcu; fcu = fcu->next) {
if (prefix && !STREQLEN(prefix, fcu->rna_path, strlen(prefix)))
continue;
char *name = extract_transform_name(fcu->rna_path);
if (STREQ(name, tm_name)) {
for (unsigned int i = 0; i < fcu->totvert; i++) {
float f = fcu->bezt[i].vec[1][0];
if (std::find(fra.begin(), fra.end(), f) == fra.end())
fra.push_back(f);
}
}
}
// keep the keys in ascending order
std::sort(fra.begin(), fra.end());
}
}
void AnimationExporter::write_bone_animation(Object *ob_arm, Bone *bone)
{
if (!ob_arm->adt)
return;
//write bone animations for 3 transform types
//i=0 --> rotations
//i=1 --> scale
//i=2 --> location
for (int i = 0; i < 3; i++)
sample_and_write_bone_animation(ob_arm, bone, i);
for (Bone *child = (Bone *)bone->childbase.first; child; child = child->next)
write_bone_animation(ob_arm, child);
}
void AnimationExporter::sample_and_write_bone_animation(Object *ob_arm, Bone *bone, int transform_type)
{
bArmature *arm = (bArmature *)ob_arm->data;
int flag = arm->flag;
std::vector<float> fra;
char prefix[256];
BLI_snprintf(prefix, sizeof(prefix), "pose.bones[\"%s\"]", bone->name);
bPoseChannel *pchan = BKE_pose_channel_find_name(ob_arm->pose, bone->name);
if (!pchan)
return;
//Fill frame array with key frame values framed at \param:transform_type
switch (transform_type) {
case 0:
find_rotation_frames(ob_arm, fra, prefix, pchan->rotmode);
break;
case 1:
find_keyframes(ob_arm, fra, prefix, "scale");
break;
case 2:
find_keyframes(ob_arm, fra, prefix, "location");
break;
default:
return;
}
// exit rest position
if (flag & ARM_RESTPOS) {
arm->flag &= ~ARM_RESTPOS;
BKE_pose_where_is(eval_ctx, scene, ob_arm);
}
//v array will hold all values which will be exported.
if (fra.size()) {
float *values = (float *)MEM_callocN(sizeof(float) * 3 * fra.size(), "temp. anim frames");
sample_animation(values, fra, transform_type, bone, ob_arm, pchan);
if (transform_type == 0) {
// write x, y, z curves separately if it is rotation
float *axisValues = (float *)MEM_callocN(sizeof(float) * fra.size(), "temp. anim frames");
for (int i = 0; i < 3; i++) {
for (unsigned int j = 0; j < fra.size(); j++)
axisValues[j] = values[j * 3 + i];
dae_bone_animation(fra, axisValues, transform_type, i, id_name(ob_arm), bone->name);
}
MEM_freeN(axisValues);
}
else {
// write xyz at once if it is location or scale
dae_bone_animation(fra, values, transform_type, -1, id_name(ob_arm), bone->name);
}
MEM_freeN(values);
}
// restore restpos
if (flag & ARM_RESTPOS)
arm->flag = flag;
BKE_pose_where_is(eval_ctx, scene, ob_arm);
}
void AnimationExporter::sample_animation(float *v, std::vector<float> &frames, int type, Bone *bone, Object *ob_arm, bPoseChannel *pchan)
{
bPoseChannel *parchan = NULL;
bPose *pose = ob_arm->pose;
pchan = BKE_pose_channel_find_name(pose, bone->name);
if (!pchan)
return;
parchan = pchan->parent;
enable_fcurves(ob_arm->adt->action, bone->name);
std::vector<float>::iterator it;
for (it = frames.begin(); it != frames.end(); it++) {
float mat[4][4], ipar[4][4];
float ctime = BKE_scene_frame_get_from_ctime(scene, *it);
BKE_animsys_evaluate_animdata(scene, &ob_arm->id, ob_arm->adt, ctime, ADT_RECALC_ANIM);
BKE_pose_where_is_bone(eval_ctx, scene, ob_arm, pchan, ctime, 1);
// compute bone local mat
if (bone->parent) {
invert_m4_m4(ipar, parchan->pose_mat);
mul_m4_m4m4(mat, ipar, pchan->pose_mat);
}
else
copy_m4_m4(mat, pchan->pose_mat);
switch (type) {
case 0:
mat4_to_eul(v, mat);
break;
case 1:
mat4_to_size(v, mat);
break;
case 2:
copy_v3_v3(v, mat[3]);
break;
}
v += 3;
}
enable_fcurves(ob_arm->adt->action, NULL);
}
bool AnimationExporter::validateConstraints(bConstraint *con)
{
bool valid = true;
const bConstraintTypeInfo *cti = BKE_constraint_typeinfo_get(con);
/* these we can skip completely (invalid constraints...) */
if (cti == NULL) valid = false;
if (con->flag & (CONSTRAINT_DISABLE | CONSTRAINT_OFF)) valid = false;
/* these constraints can't be evaluated anyway */
if (cti->evaluate_constraint == NULL) valid = false;
/* influence == 0 should be ignored */
if (con->enforce == 0.0f) valid = false;
return valid;
}
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