TransformWriter.cpp

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/*
 * $Id: TransformWriter.cpp 35243 2011-02-27 20:30:35Z jesterking $
 *
 * ***** 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
 *
 * ***** END GPL LICENSE BLOCK *****
 */

#include "BKE_object.h"

#include "TransformWriter.h"

#include "BLI_math.h"

void TransformWriter::add_node_transform(COLLADASW::Node& node, float mat[][4], float parent_mat[][4])
{
        float loc[3], rot[3], scale[3];
        float local[4][4];

        if (parent_mat) {
                float invpar[4][4];
                invert_m4_m4(invpar, parent_mat);
                mul_m4_m4m4(local, mat, invpar);
        }
        else {
                copy_m4_m4(local, mat);
        }

        TransformBase::decompose(local, loc, rot, NULL, scale);
        
        add_transform(node, loc, rot, scale);
}

void TransformWriter::add_node_transform_ob(COLLADASW::Node& node, Object *ob)
{
        float rot[3], loc[3], scale[3];

        if (ob->parent) {
                float C[4][4], tmat[4][4], imat[4][4], mat[4][4];

                // factor out scale from obmat

                copy_v3_v3(scale, ob->size);

                ob->size[0] = ob->size[1] = ob->size[2] = 1.0f;
                object_to_mat4(ob, C);
                copy_v3_v3(ob->size, scale);

                mul_serie_m4(tmat, ob->parent->obmat, ob->parentinv, C, NULL, NULL, NULL, NULL, NULL);

                // calculate local mat

                invert_m4_m4(imat, ob->parent->obmat);
                mul_m4_m4m4(mat, tmat, imat);

                // done

                mat4_to_eul(rot, mat);
                copy_v3_v3(loc, mat[3]);
        }
        else {
                copy_v3_v3(loc, ob->loc);
                copy_v3_v3(rot, ob->rot);
                copy_v3_v3(scale, ob->size);
        }

        add_transform(node, loc, rot, scale);
}

void TransformWriter::add_node_transform_identity(COLLADASW::Node& node)
{
        float loc[] = {0.0f, 0.0f, 0.0f}, scale[] = {1.0f, 1.0f, 1.0f}, rot[] = {0.0f, 0.0f, 0.0f};
        add_transform(node, loc, rot, scale);
}

void TransformWriter::add_transform(COLLADASW::Node& node, float loc[3], float rot[3], float scale[3])
{
        node.addTranslate("location", loc[0], loc[1], loc[2]);
        node.addRotateZ("rotationZ", COLLADABU::Math::Utils::radToDegF(rot[2]));
        node.addRotateY("rotationY", COLLADABU::Math::Utils::radToDegF(rot[1]));
        node.addRotateX("rotationX", COLLADABU::Math::Utils::radToDegF(rot[0]));
        node.addScale("scale", scale[0], scale[1], scale[2]);
}