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blender-archive/source/blender/modifiers/intern/MOD_shapekey.cc

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C++

/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2005 Blender Foundation */
/** \file
* \ingroup modifiers
*/
#include "BLI_utildefines.h"
#include "BLI_math.h"
#include "BLT_translation.h"
#include "DNA_key_types.h"
#include "DNA_mesh_types.h"
#include "DNA_object_types.h"
#include "BKE_key.h"
#include "BKE_particle.h"
#include "RNA_access.h"
#include "RNA_prototypes.h"
#include "MOD_modifiertypes.hh"
#include "UI_resources.h"
static void deformVerts(ModifierData * /*md*/,
const ModifierEvalContext *ctx,
Mesh * /*mesh*/,
float (*vertexCos)[3],
int verts_num)
{
Key *key = BKE_key_from_object(ctx->object);
if (key && key->block.first) {
int deformedVerts_tot;
BKE_key_evaluate_object_ex(ctx->object,
&deformedVerts_tot,
(float *)vertexCos,
sizeof(*vertexCos) * verts_num,
nullptr);
}
}
static void deformMatrices(ModifierData *md,
const ModifierEvalContext *ctx,
Mesh *mesh,
float (*vertexCos)[3],
float (*defMats)[3][3],
int verts_num)
{
Key *key = BKE_key_from_object(ctx->object);
KeyBlock *kb = BKE_keyblock_from_object(ctx->object);
(void)vertexCos; /* unused */
if (kb && kb->totelem == verts_num && kb != key->refkey) {
float scale[3][3];
int a;
if (ctx->object->shapeflag & OB_SHAPE_LOCK) {
scale_m3_fl(scale, 1);
}
else {
scale_m3_fl(scale, kb->curval);
}
for (a = 0; a < verts_num; a++) {
copy_m3_m3(defMats[a], scale);
}
}
deformVerts(md, ctx, mesh, vertexCos, verts_num);
}
static void deformVertsEM(ModifierData *md,
const ModifierEvalContext *ctx,
BMEditMesh * /*editData*/,
Mesh *mesh,
float (*vertexCos)[3],
int verts_num)
{
Key *key = BKE_key_from_object(ctx->object);
if (key && key->type == KEY_RELATIVE) {
deformVerts(md, ctx, mesh, vertexCos, verts_num);
}
}
static void deformMatricesEM(ModifierData * /*md*/,
const ModifierEvalContext *ctx,
BMEditMesh * /*editData*/,
Mesh * /*mesh*/,
float (*vertexCos)[3],
float (*defMats)[3][3],
int verts_num)
{
Key *key = BKE_key_from_object(ctx->object);
KeyBlock *kb = BKE_keyblock_from_object(ctx->object);
(void)vertexCos; /* unused */
if (kb && kb->totelem == verts_num && kb != key->refkey) {
float scale[3][3];
scale_m3_fl(scale, kb->curval);
for (int a = 0; a < verts_num; a++) {
copy_m3_m3(defMats[a], scale);
}
}
}
ModifierTypeInfo modifierType_ShapeKey = {
/*name*/ N_("ShapeKey"),
/*structName*/ "ShapeKeyModifierData",
/*structSize*/ sizeof(ShapeKeyModifierData),
/*srna*/ &RNA_Modifier,
/*type*/ eModifierTypeType_OnlyDeform,
/*flags*/ eModifierTypeFlag_AcceptsCVs | eModifierTypeFlag_AcceptsVertexCosOnly |
eModifierTypeFlag_SupportsEditmode,
/*icon*/ ICON_DOT,
/*copyData*/ nullptr,
/*deformVerts*/ deformVerts,
/*deformMatrices*/ deformMatrices,
/*deformVertsEM*/ deformVertsEM,
/*deformMatricesEM*/ deformMatricesEM,
/*modifyMesh*/ nullptr,
/*modifyGeometrySet*/ nullptr,
/*initData*/ nullptr,
/*requiredDataMask*/ nullptr,
/*freeData*/ nullptr,
/*isDisabled*/ nullptr,
/*updateDepsgraph*/ nullptr,
/*dependsOnTime*/ nullptr,
/*dependsOnNormals*/ nullptr,
/*foreachIDLink*/ nullptr,
/*foreachTexLink*/ nullptr,
/*freeRuntimeData*/ nullptr,
/*panelRegister*/ nullptr,
/*blendWrite*/ nullptr,
/*blendRead*/ nullptr,
};