134 lines
		
	
	
		
			3.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			134 lines
		
	
	
		
			3.7 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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 * The Original Code is Copyright (C) 2005 by the Blender Foundation.
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 * All rights reserved.
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 *
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 * Contributor(s): Daniel Dunbar
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 *                 Ton Roosendaal,
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 *                 Ben Batt,
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 *                 Brecht Van Lommel,
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 *                 Campbell Barton
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 *
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 * ***** END GPL LICENSE BLOCK *****
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 *
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 */
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/** \file blender/modifiers/intern/MOD_multires.c
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 *  \ingroup modifiers
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 */
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#include <stddef.h>
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#include "BKE_cdderivedmesh.h"
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#include "BKE_multires.h"
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#include "BKE_modifier.h"
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#include "BKE_paint.h"
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#include "BKE_particle.h"
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#include "DNA_mesh_types.h"
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#include "MOD_util.h"
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static void initData(ModifierData *md)
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{
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	MultiresModifierData *mmd = (MultiresModifierData*)md;
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	mmd->lvl = 0;
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	mmd->sculptlvl = 0;
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	mmd->renderlvl = 0;
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	mmd->totlvl = 0;
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}
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static void copyData(ModifierData *md, ModifierData *target)
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{
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	MultiresModifierData *mmd = (MultiresModifierData*) md;
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	MultiresModifierData *tmmd = (MultiresModifierData*) target;
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	tmmd->lvl = mmd->lvl;
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	tmmd->sculptlvl = mmd->sculptlvl;
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	tmmd->renderlvl = mmd->renderlvl;
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	tmmd->totlvl = mmd->totlvl;
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	tmmd->simple = mmd->simple;
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	tmmd->flags = mmd->flags;
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}
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static DerivedMesh *applyModifier(ModifierData *md, Object *ob, DerivedMesh *dm,
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						   int useRenderParams, int isFinalCalc)
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{
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	SculptSession *ss= ob->sculpt;
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	int sculpting= (ob->mode & OB_MODE_SCULPT) && ss;
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	MultiresModifierData *mmd = (MultiresModifierData*)md;
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	DerivedMesh *result;
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	Mesh *me= (Mesh*)ob->data;
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	if(mmd->totlvl) {
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		if(!CustomData_get_layer(&me->fdata, CD_MDISPS)) {
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			/* multires always needs a displacement layer */
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			CustomData_add_layer(&me->fdata, CD_MDISPS, CD_CALLOC, NULL, me->totface);
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		}
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	}
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	result = multires_dm_create_from_derived(mmd, 0, dm, ob, useRenderParams, isFinalCalc);
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	if(result == dm)
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		return dm;
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	if(useRenderParams || !isFinalCalc) {
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		DerivedMesh *cddm= CDDM_copy(result);
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		result->release(result);
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		result= cddm;
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	}
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	else if(sculpting) {
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		/* would be created on the fly too, just nicer this
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		   way on first stroke after e.g. switching levels */
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		ss->pbvh= result->getPBVH(ob, result);
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	}
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	return result;
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}
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ModifierTypeInfo modifierType_Multires = {
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	/* name */              "Multires",
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	/* structName */        "MultiresModifierData",
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	/* structSize */        sizeof(MultiresModifierData),
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	/* type */              eModifierTypeType_Constructive,
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	/* flags */             eModifierTypeFlag_AcceptsMesh
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							| eModifierTypeFlag_SupportsMapping
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							| eModifierTypeFlag_RequiresOriginalData,
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	/* copyData */          copyData,
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	/* deformVerts */       NULL,
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	/* deformMatrices */    NULL,
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	/* deformVertsEM */     NULL,
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	/* deformMatricesEM */  NULL,
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	/* applyModifier */     applyModifier,
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	/* applyModifierEM */   NULL,
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	/* initData */          initData,
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	/* requiredDataMask */  NULL,
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	/* freeData */          NULL,
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	/* isDisabled */        NULL,
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	/* updateDepgraph */    NULL,
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	/* dependsOnTime */     NULL,
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	/* dependsOnNormals */	NULL,
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	/* foreachObjectLink */ NULL,
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	/* foreachIDLink */     NULL,
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	/* foreachTexLink */    NULL,
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};
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