Campbell Barton
81b6d308a7
When there are 2+ consecutive deform modifiers, the second modifier was getting incorrect normals, this only showed up for the displace modifier since its the only deform modifier that uses vertex normals. It would have been easy to fix this by always calculating normals on deform modifiers, but slow. To fix this I added a function to check if a deform modifier needs normals, so the normal calculation function only runs if there are 2 modifiers in a row and the second uses normals.
142 lines
3.9 KiB
C
142 lines
3.9 KiB
C
/*
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* $Id$
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*
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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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#include "DNA_object_types.h"
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#include "BKE_cdderivedmesh.h"
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#include "BKE_modifier.h"
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#include "depsgraph_private.h"
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#include "MOD_boolean_util.h"
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static void copyData(ModifierData *md, ModifierData *target)
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{
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BooleanModifierData *bmd = (BooleanModifierData*) md;
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BooleanModifierData *tbmd = (BooleanModifierData*) target;
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tbmd->object = bmd->object;
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tbmd->operation = bmd->operation;
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}
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static int isDisabled(ModifierData *md, int useRenderParams)
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{
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BooleanModifierData *bmd = (BooleanModifierData*) md;
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return !bmd->object;
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}
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static void foreachObjectLink(
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ModifierData *md, Object *ob,
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void (*walk)(void *userData, Object *ob, Object **obpoin),
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void *userData)
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{
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BooleanModifierData *bmd = (BooleanModifierData*) md;
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walk(userData, ob, &bmd->object);
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}
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static void updateDepgraph(
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ModifierData *md, DagForest *forest, struct Scene *scene, Object *ob,
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DagNode *obNode)
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{
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BooleanModifierData *bmd = (BooleanModifierData*) md;
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if(bmd->object) {
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DagNode *curNode = dag_get_node(forest, bmd->object);
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dag_add_relation(forest, curNode, obNode,
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DAG_RL_DATA_DATA | DAG_RL_OB_DATA, "Boolean Modifier");
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}
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}
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static DerivedMesh *applyModifier(
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ModifierData *md, Object *ob, DerivedMesh *derivedData,
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int useRenderParams, int isFinalCalc)
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{
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BooleanModifierData *bmd = (BooleanModifierData*) md;
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DerivedMesh *dm = bmd->object->derivedFinal;
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/* we do a quick sanity check */
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if(dm && (derivedData->getNumFaces(derivedData) > 3)
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&& bmd->object && dm->getNumFaces(dm) > 3) {
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DerivedMesh *result = NewBooleanDerivedMesh(dm, bmd->object, derivedData, ob,
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1 + bmd->operation);
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/* if new mesh returned, return it; otherwise there was
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* an error, so delete the modifier object */
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if(result)
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return result;
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else
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modifier_setError(md, "Can't execute boolean operation.");
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}
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return derivedData;
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}
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static CustomDataMask requiredDataMask(Object *ob, ModifierData *md)
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{
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CustomDataMask dataMask = (1 << CD_MTFACE) + (1 << CD_MEDGE);
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dataMask |= (1 << CD_MDEFORMVERT);
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return dataMask;
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}
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ModifierTypeInfo modifierType_Boolean = {
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/* name */ "Boolean",
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/* structName */ "BooleanModifierData",
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/* structSize */ sizeof(BooleanModifierData),
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/* type */ eModifierTypeType_Nonconstructive,
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/* flags */ eModifierTypeFlag_AcceptsMesh
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| eModifierTypeFlag_UsesPointCache,
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/* copyData */ copyData,
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/* deformVerts */ 0,
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/* deformVertsEM */ 0,
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/* deformMatricesEM */ 0,
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/* applyModifier */ applyModifier,
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/* applyModifierEM */ 0,
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/* initData */ 0,
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/* requiredDataMask */ requiredDataMask,
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/* freeData */ 0,
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/* isDisabled */ isDisabled,
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/* updateDepgraph */ updateDepgraph,
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/* dependsOnTime */ 0,
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/* dependsOnNormals */ 0,
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/* foreachObjectLink */ foreachObjectLink,
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/* foreachIDLink */ 0,
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};
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