113 lines
		
	
	
		
			3.0 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			113 lines
		
	
	
		
			3.0 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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 * ***** BEGIN GPL LICENSE BLOCK *****
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 *
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 * This program is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2
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 * of the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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 *
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 * Contributor(s): Chingiz Dyussenov, Arystanbek Dyussenov, Nathan Letwory.
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 *
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 * ***** END GPL LICENSE BLOCK *****
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 */
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/** \file blender/collada/collada_utils.cpp
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 *  \ingroup collada
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 */
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/* COLLADABU_ASSERT, may be able to remove later */
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#include "COLLADABUPlatform.h"
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#include "COLLADAFWGeometry.h"
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#include "COLLADAFWMeshPrimitive.h"
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#include "COLLADAFWMeshVertexData.h"
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#include "DNA_customdata_types.h"
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#include "DNA_object_types.h"
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#include "BLI_math.h"
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#include "BKE_context.h"
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#include "BKE_customdata.h"
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#include "BKE_depsgraph.h"
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#include "BKE_object.h"
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#include "WM_api.h" // XXX hrm, see if we can do without this
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#include "WM_types.h"
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float bc_get_float_value(const COLLADAFW::FloatOrDoubleArray& array, unsigned int index)
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{
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	if (index >= array.getValuesCount())
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		return 0.0f;
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	if (array.getType() == COLLADAFW::MeshVertexData::DATA_TYPE_FLOAT)
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		return array.getFloatValues()->getData()[index];
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	else 
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		return array.getDoubleValues()->getData()[index];
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}
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// copied from /editors/object/object_relations.c
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int bc_test_parent_loop(Object *par, Object *ob)
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{
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	/* test if 'ob' is a parent somewhere in par's parents */
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	if (par == NULL) return 0;
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	if (ob == par) return 1;
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	return bc_test_parent_loop(par->parent, ob);
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}
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// a shortened version of parent_set_exec()
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// if is_parent_space is true then ob->obmat will be multiplied by par->obmat before parenting
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int bc_set_parent(Object *ob, Object *par, bContext *C, bool is_parent_space)
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{
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	Object workob;
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	Main *bmain = CTX_data_main(C);
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	Scene *sce = CTX_data_scene(C);
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	if (!par || bc_test_parent_loop(par, ob))
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		return false;
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	ob->parent = par;
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	ob->partype = PAROBJECT;
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	ob->parsubstr[0] = 0;
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	if (is_parent_space) {
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		float mat[4][4];
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		// calc par->obmat
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		where_is_object(sce, par);
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		// move child obmat into world space
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		mult_m4_m4m4(mat, par->obmat, ob->obmat);
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		copy_m4_m4(ob->obmat, mat);
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	}
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	// apply child obmat (i.e. decompose it into rot/loc/size)
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	object_apply_mat4(ob, ob->obmat, 0, 0);
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	// compute parentinv
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	what_does_parent(sce, ob, &workob);
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	invert_m4_m4(ob->parentinv, workob.obmat);
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	ob->recalc |= OB_RECALC_OB | OB_RECALC_DATA;
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	par->recalc |= OB_RECALC_OB;
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	DAG_scene_sort(bmain, sce);
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	DAG_ids_flush_update(bmain, 0);
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	WM_event_add_notifier(C, NC_OBJECT|ND_TRANSFORM, NULL);
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	return true;
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}
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