647 lines
24 KiB
C++
647 lines
24 KiB
C++
/* SPDX-FileCopyrightText: 2023 Blender Foundation
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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/** \file
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* \ingroup bke
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*/
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#include "BKE_customdata.h"
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#include "BLI_compiler_attrs.h"
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#include "DNA_modifier_types.h" /* needed for all enum typdefs */
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#ifdef __cplusplus
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namespace blender::bke {
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struct GeometrySet;
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}
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using GeometrySetHandle = blender::bke::GeometrySet;
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#else
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typedef struct GeometrySetHandle GeometrySetHandle;
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct ARegionType;
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struct BMEditMesh;
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struct BlendDataReader;
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struct BlendLibReader;
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struct BlendWriter;
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struct CustomData_MeshMasks;
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struct DepsNodeHandle;
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struct Depsgraph;
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struct ID;
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struct ListBase;
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struct Main;
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struct Mesh;
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struct ModifierData;
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struct Object;
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struct Scene;
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struct bArmature;
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typedef enum {
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/* Should not be used, only for None modifier type */
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eModifierTypeType_None,
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/**
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* Modifier only does deformation, implies that modifier
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* type should have a valid deformVerts function. OnlyDeform
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* style modifiers implicitly accept either mesh or CV
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* input but should still declare flags appropriately.
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*/
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eModifierTypeType_OnlyDeform,
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/** Modifier adds geometry. */
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eModifierTypeType_Constructive,
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/* Modifier can add and remove geometry. */
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eModifierTypeType_Nonconstructive,
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/**
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* Both deformVerts & applyModifier are valid calls
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* used for particles modifier that doesn't actually modify the object
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* unless it's a mesh and can be exploded -> curve can also emit particles
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*/
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eModifierTypeType_DeformOrConstruct,
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/**
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* Like eModifierTypeType_Nonconstructive, but does not affect the geometry
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* of the object, rather some of its CustomData layers.
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* E.g. UVProject and WeightVG modifiers. */
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eModifierTypeType_NonGeometrical,
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} ModifierTypeType;
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typedef enum {
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eModifierTypeFlag_AcceptsMesh = (1 << 0),
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eModifierTypeFlag_AcceptsCVs = (1 << 1),
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eModifierTypeFlag_SupportsMapping = (1 << 2),
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eModifierTypeFlag_SupportsEditmode = (1 << 3),
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/**
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* For modifiers that support editmode this determines if the
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* modifier should be enabled by default in editmode. This should
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* only be used by modifiers that are relatively speedy and
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* also generally used in editmode, otherwise let the user enable
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* it by hand.
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*/
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eModifierTypeFlag_EnableInEditmode = (1 << 4),
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/**
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* For modifiers that require original data and so cannot
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* be placed after any non-deformative modifier.
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*/
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eModifierTypeFlag_RequiresOriginalData = (1 << 5),
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/**
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* For modifiers that support point-cache,
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* so we can check to see if it has files we need to deal with.
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*/
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eModifierTypeFlag_UsesPointCache = (1 << 6),
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/** For physics modifiers, max one per type */
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eModifierTypeFlag_Single = (1 << 7),
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/** Some modifier can't be added manually by user */
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eModifierTypeFlag_NoUserAdd = (1 << 8),
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/** For modifiers that use CD_PREVIEW_MCOL for preview. */
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eModifierTypeFlag_UsesPreview = (1 << 9),
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eModifierTypeFlag_AcceptsVertexCosOnly = (1 << 10),
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/** Accepts #BMesh input (without conversion). */
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eModifierTypeFlag_AcceptsBMesh = (1 << 11),
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} ModifierTypeFlag;
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ENUM_OPERATORS(ModifierTypeFlag, eModifierTypeFlag_AcceptsBMesh)
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typedef void (*IDWalkFunc)(void *userData, struct Object *ob, struct ID **idpoin, int cb_flag);
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typedef void (*TexWalkFunc)(void *userData,
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struct Object *ob,
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struct ModifierData *md,
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const char *propname);
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typedef enum ModifierApplyFlag {
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/** Render time. */
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MOD_APPLY_RENDER = 1 << 0,
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/** Result of evaluation will be cached, so modifier might
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* want to cache data for quick updates (used by subdivision-surface) */
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MOD_APPLY_USECACHE = 1 << 1,
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/** Modifier evaluated for undeformed texture coordinates */
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MOD_APPLY_ORCO = 1 << 2,
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/** Ignore scene simplification flag and use subdivisions
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* level set in multires modifier. */
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MOD_APPLY_IGNORE_SIMPLIFY = 1 << 3,
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/** The effect of this modifier will be applied to the base mesh
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* The modifier itself will be removed from the modifier stack.
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* This flag can be checked to ignore rendering display data to the mesh.
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* See `OBJECT_OT_modifier_apply` operator. */
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MOD_APPLY_TO_BASE_MESH = 1 << 4,
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} ModifierApplyFlag;
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ENUM_OPERATORS(ModifierApplyFlag, MOD_APPLY_TO_BASE_MESH);
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typedef struct ModifierUpdateDepsgraphContext {
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struct Scene *scene;
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struct Object *object;
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struct DepsNodeHandle *node;
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} ModifierUpdateDepsgraphContext;
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/* Contains the information for deformXXX and applyXXX functions below that
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* doesn't change between consecutive modifiers. */
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typedef struct ModifierEvalContext {
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struct Depsgraph *depsgraph;
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struct Object *object;
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ModifierApplyFlag flag;
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} ModifierEvalContext;
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typedef struct ModifierTypeInfo {
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/* The user visible name for this modifier */
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char name[32];
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/* The DNA struct name for the modifier data type, used to
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* write the DNA data out.
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*/
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char structName[32];
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/* The size of the modifier data type, used by allocation. */
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int structSize;
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/* StructRNA of this modifier. This is typically something like RNA_*Modifier. */
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struct StructRNA *srna;
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ModifierTypeType type;
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ModifierTypeFlag flags;
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/* Icon of the modifier. Usually something like ICON_MOD_*. */
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int icon;
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/********************* Non-optional functions *********************/
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/**
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* Copy instance data for this modifier type. Should copy all user
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* level settings to the target modifier.
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*
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* \param flag: Copying options (see BKE_lib_id.h's LIB_ID_COPY_... flags for more).
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*/
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void (*copyData)(const struct ModifierData *md, struct ModifierData *target, int flag);
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/********************* Deform modifier functions *********************/
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/**
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* Only for deform types, should apply the deformation
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* to the given vertex array. If the deformer requires information from
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* the object it can obtain it from the mesh argument if non-NULL,
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* and otherwise the ob argument.
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*/
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void (*deformVerts)(struct ModifierData *md,
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const struct ModifierEvalContext *ctx,
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struct Mesh *mesh,
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float (*vertexCos)[3],
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int numVerts);
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/**
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* Like deformMatricesEM but called from object mode (for supporting modifiers in sculpt mode).
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*/
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void (*deformMatrices)(struct ModifierData *md,
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const struct ModifierEvalContext *ctx,
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struct Mesh *mesh,
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float (*vertexCos)[3],
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float (*defMats)[3][3],
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int numVerts);
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/**
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* Like deformVerts but called during editmode (for supporting modifiers)
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*/
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void (*deformVertsEM)(struct ModifierData *md,
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const struct ModifierEvalContext *ctx,
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struct BMEditMesh *editData,
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struct Mesh *mesh,
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float (*vertexCos)[3],
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int numVerts);
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/* Set deform matrix per vertex for crazy-space correction */
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void (*deformMatricesEM)(struct ModifierData *md,
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const struct ModifierEvalContext *ctx,
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struct BMEditMesh *editData,
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struct Mesh *mesh,
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float (*vertexCos)[3],
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float (*defMats)[3][3],
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int numVerts);
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/********************* Non-deform modifier functions *********************/
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/**
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* For non-deform types: apply the modifier and return a mesh data-block.
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*
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* The mesh argument should always be non-NULL; the modifier should use the
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* passed in mesh data-block rather than object->data, as it contains the mesh
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* with modifier applied up to this point.
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*
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* The modifier may modify and return the mesh argument, but must not free it
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* and must ensure any referenced data layers are converted to non-referenced
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* before modification.
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*/
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struct Mesh *(*modifyMesh)(struct ModifierData *md,
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const struct ModifierEvalContext *ctx,
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struct Mesh *mesh);
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/**
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* The modifier has to change the geometry set in-place. The geometry set can contain zero or
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* more geometry components. This callback can be used by modifiers that don't work on any
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* specific type of geometry (e.g. mesh).
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*/
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void (*modifyGeometrySet)(struct ModifierData *md,
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const struct ModifierEvalContext *ctx,
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GeometrySetHandle *geometry_set);
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/********************* Optional functions *********************/
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/**
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* Initialize new instance data for this modifier type, this function
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* should set modifier variables to their default values.
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*
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* This function is optional.
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*/
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void (*initData)(struct ModifierData *md);
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/**
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* Should add to passed \a r_cddata_masks the data types that this
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* modifier needs. If (mask & (1 << (layer type))) != 0, this modifier
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* needs that custom data layer. It can change required layers
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* depending on the modifier's settings.
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*
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* Note that this means extra data (e.g. vertex groups) - it is assumed
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* that all modifiers need mesh data and deform modifiers need vertex
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* coordinates.
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*
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* If this function is not present, it is assumed that no extra data is needed.
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*
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* This function is optional.
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*/
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void (*requiredDataMask)(struct ModifierData *md, struct CustomData_MeshMasks *r_cddata_masks);
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/**
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* Free internal modifier data variables, this function should
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* not free the md variable itself.
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*
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* This function is responsible for freeing the runtime data as well.
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*
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* This function is optional.
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*/
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void (*freeData)(struct ModifierData *md);
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/**
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* Return a boolean value indicating if this modifier is able to be
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* calculated based on the modifier data. This is *not* regarding the
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* md->flag, that is tested by the system, this is just if the data
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* validates (for example, a lattice will return false if the lattice
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* object is not defined).
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*
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* This function is optional (assumes never disabled if not present).
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*/
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bool (*isDisabled)(const struct Scene *scene, struct ModifierData *md, bool userRenderParams);
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/**
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* Add the appropriate relations to the dependency graph.
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*
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* This function is optional.
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*/
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void (*updateDepsgraph)(struct ModifierData *md, const ModifierUpdateDepsgraphContext *ctx);
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/**
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* Should return true if the modifier needs to be recalculated on time
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* changes.
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*
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* This function is optional (assumes false if not present).
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*/
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bool (*dependsOnTime)(struct Scene *scene, struct ModifierData *md);
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/**
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* True when a deform modifier uses normals, the requiredDataMask
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* can't be used here because that refers to a normal layer whereas
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* in this case we need to know if the deform modifier uses normals.
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*
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* this is needed because applying 2 deform modifiers will give the
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* second modifier bogus normals.
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*/
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bool (*dependsOnNormals)(struct ModifierData *md);
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/**
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* Should call the given walk function with a pointer to each ID
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* pointer (i.e. each data-block pointer) that the modifier data
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* stores. This is used for linking on file load and for
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* unlinking data-blocks or forwarding data-block references.
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*
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* This function is optional.
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*/
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void (*foreachIDLink)(struct ModifierData *md,
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struct Object *ob,
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IDWalkFunc walk,
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void *userData);
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/**
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* Should call the given walk function for each texture that the
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* modifier data stores. This is used for finding all textures in
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* the context for the UI.
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*
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* This function is optional. If it is not present, it will be
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* assumed the modifier has no textures.
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*/
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void (*foreachTexLink)(struct ModifierData *md,
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struct Object *ob,
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TexWalkFunc walk,
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void *userData);
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/**
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* Free given run-time data.
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*
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* This data is coming from a modifier of the corresponding type, but actual
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* modifier data is not known here.
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*
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* Notes:
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* - The data itself is to be de-allocated as well.
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* - This callback is allowed to receive NULL pointer as a data, so it's
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* more like "ensure the data is freed".
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*/
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void (*freeRuntimeData)(void *runtime_data);
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/** Register the panel types for the modifier's UI. */
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void (*panelRegister)(struct ARegionType *region_type);
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/**
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* Is called when the modifier is written to a file. The modifier data struct itself is written
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* already.
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*
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* This method should write any additional arrays and referenced structs that should be
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* stored in the file.
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*/
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void (*blendWrite)(struct BlendWriter *writer,
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const struct ID *id_owner,
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const struct ModifierData *md);
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/**
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* Is called when the modifier is read from a file.
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*
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* It can be used to update pointers to arrays and other structs. Furthermore, fields that have
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* not been written (e.g. runtime data) can be reset.
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*/
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void (*blendRead)(struct BlendDataReader *reader, struct ModifierData *md);
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} ModifierTypeInfo;
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/* Used to find a modifier's panel type. */
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#define MODIFIER_TYPE_PANEL_PREFIX "MOD_PT_"
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/* Initialize modifier's global data (type info and some common global storage). */
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void BKE_modifier_init(void);
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const ModifierTypeInfo *BKE_modifier_get_info(ModifierType type);
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/* For modifier UI panels. */
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/**
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* Get the idname of the modifier type's panel, which was defined in the #panelRegister callback.
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*/
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void BKE_modifier_type_panel_id(ModifierType type, char *r_idname);
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void BKE_modifier_panel_expand(struct ModifierData *md);
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/* Modifier utility calls, do call through type pointer and return
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* default values if pointer is optional.
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*/
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struct ModifierData *BKE_modifier_new(int type);
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void BKE_modifier_free_ex(struct ModifierData *md, int flag);
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void BKE_modifier_free(struct ModifierData *md);
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/**
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* Use instead of `BLI_remlink` when the object's active modifier should change.
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*/
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void BKE_modifier_remove_from_list(struct Object *ob, struct ModifierData *md);
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/* Generate new UUID for the given modifier. */
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void BKE_modifier_session_uuid_generate(struct ModifierData *md);
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bool BKE_modifier_unique_name(struct ListBase *modifiers, struct ModifierData *md);
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struct ModifierData *BKE_modifier_copy_ex(const struct ModifierData *md, int flag);
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/**
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* Callback's can use this to avoid copying every member.
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*/
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void BKE_modifier_copydata_generic(const struct ModifierData *md,
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struct ModifierData *md_dst,
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int flag);
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void BKE_modifier_copydata(const struct ModifierData *md, struct ModifierData *target);
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void BKE_modifier_copydata_ex(const struct ModifierData *md,
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struct ModifierData *target,
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int flag);
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bool BKE_modifier_depends_ontime(struct Scene *scene, struct ModifierData *md);
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bool BKE_modifier_supports_mapping(struct ModifierData *md);
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bool BKE_modifier_supports_cage(struct Scene *scene, struct ModifierData *md);
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bool BKE_modifier_couldbe_cage(struct Scene *scene, struct ModifierData *md);
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bool BKE_modifier_is_correctable_deformed(struct ModifierData *md);
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bool BKE_modifier_is_same_topology(ModifierData *md);
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bool BKE_modifier_is_non_geometrical(ModifierData *md);
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/**
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* Check whether is enabled.
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*
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* \param scene: Current scene, may be NULL,
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* in which case `isDisabled` callback of the modifier is never called.
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*/
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bool BKE_modifier_is_enabled(const struct Scene *scene,
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struct ModifierData *md,
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int required_mode);
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/**
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* Check whether given modifier is not local (i.e. from linked data) when the object is a library
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* override.
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*
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* \param md: May be NULL, in which case we consider it as a non-local modifier case.
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*/
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bool BKE_modifier_is_nonlocal_in_liboverride(const struct Object *ob,
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const struct ModifierData *md);
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/* Set modifier execution error.
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* The message will be shown in the interface and will be logged as an error to the console. */
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void BKE_modifier_set_error(const struct Object *ob,
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struct ModifierData *md,
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const char *format,
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...) ATTR_PRINTF_FORMAT(3, 4);
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/* Set modifier execution warning, which does not prevent the modifier from being applied but which
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* might need an attention. The message will only be shown in the interface, but will not appear in
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* the logs. */
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void BKE_modifier_set_warning(const struct Object *ob,
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struct ModifierData *md,
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const char *format,
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...) ATTR_PRINTF_FORMAT(3, 4);
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bool BKE_modifier_is_preview(struct ModifierData *md);
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void BKE_modifiers_foreach_ID_link(struct Object *ob, IDWalkFunc walk, void *userData);
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void BKE_modifiers_foreach_tex_link(struct Object *ob, TexWalkFunc walk, void *userData);
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struct ModifierData *BKE_modifiers_findby_type(const struct Object *ob, ModifierType type);
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struct ModifierData *BKE_modifiers_findby_name(const struct Object *ob, const char *name);
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struct ModifierData *BKE_modifiers_findby_session_uuid(const struct Object *ob,
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const SessionUUID *session_uuid);
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void BKE_modifiers_clear_errors(struct Object *ob);
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/**
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* used for buttons, to find out if the 'draw deformed in edit-mode option is there.
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*
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* Also used in transform_conversion.c, to detect crazy-space (2nd arg then is NULL).
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* Also used for some mesh tools to give warnings.
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*/
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int BKE_modifiers_get_cage_index(const struct Scene *scene,
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struct Object *ob,
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int *r_lastPossibleCageIndex,
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bool is_virtual);
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bool BKE_modifiers_is_modifier_enabled(struct Object *ob, int modifierType);
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bool BKE_modifiers_is_softbody_enabled(struct Object *ob);
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bool BKE_modifiers_is_cloth_enabled(struct Object *ob);
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bool BKE_modifiers_is_particle_enabled(struct Object *ob);
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/**
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* Takes an object and returns its first selected armature, else just its armature.
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* This should work for multiple armatures per object.
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*/
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struct Object *BKE_modifiers_is_deformed_by_armature(struct Object *ob);
|
|
struct Object *BKE_modifiers_is_deformed_by_meshdeform(struct Object *ob);
|
|
/**
|
|
* Takes an object and returns its first selected lattice, else just its lattice.
|
|
* This should work for multiple lattices per object.
|
|
*/
|
|
struct Object *BKE_modifiers_is_deformed_by_lattice(struct Object *ob);
|
|
/**
|
|
* Takes an object and returns its first selected curve, else just its curve.
|
|
* This should work for multiple curves per object.
|
|
*/
|
|
struct Object *BKE_modifiers_is_deformed_by_curve(struct Object *ob);
|
|
bool BKE_modifiers_uses_multires(struct Object *ob);
|
|
bool BKE_modifiers_uses_armature(struct Object *ob, struct bArmature *arm);
|
|
bool BKE_modifiers_is_correctable_deformed(const struct Scene *scene, struct Object *ob);
|
|
void BKE_modifier_free_temporary_data(struct ModifierData *md);
|
|
|
|
typedef struct CDMaskLink {
|
|
struct CDMaskLink *next;
|
|
struct CustomData_MeshMasks mask;
|
|
} CDMaskLink;
|
|
|
|
/**
|
|
* Calculates and returns a linked list of CustomData_MeshMasks and modified
|
|
* final datamask, indicating the data required by each modifier in the stack
|
|
* pointed to by md for correct evaluation, assuming the data indicated by
|
|
* final_datamask is required at the end of the stack.
|
|
*/
|
|
struct CDMaskLink *BKE_modifier_calc_data_masks(const struct Scene *scene,
|
|
struct ModifierData *md,
|
|
struct CustomData_MeshMasks *final_datamask,
|
|
int required_mode,
|
|
ModifierData *previewmd,
|
|
const struct CustomData_MeshMasks *previewmask);
|
|
struct ModifierData *BKE_modifier_get_last_preview(const struct Scene *scene,
|
|
struct ModifierData *md,
|
|
int required_mode);
|
|
|
|
typedef struct VirtualModifierData {
|
|
ArmatureModifierData amd;
|
|
CurveModifierData cmd;
|
|
LatticeModifierData lmd;
|
|
ShapeKeyModifierData smd;
|
|
} VirtualModifierData;
|
|
|
|
/**
|
|
* This is to include things that are not modifiers in the evaluation of the modifier stack,
|
|
* for example parenting to an armature.
|
|
*/
|
|
struct ModifierData *BKE_modifiers_get_virtual_modifierlist(const struct Object *ob,
|
|
struct VirtualModifierData *data);
|
|
|
|
/**
|
|
* Ensure modifier correctness when changing `ob->data`.
|
|
*/
|
|
void BKE_modifiers_test_object(struct Object *ob);
|
|
|
|
/**
|
|
* Here for #do_versions.
|
|
*/
|
|
void BKE_modifier_mdef_compact_influences(struct ModifierData *md);
|
|
|
|
/**
|
|
* Initializes `path` with either the blend file or temporary directory.
|
|
*/
|
|
void BKE_modifier_path_init(char *path, int path_maxncpy, const char *name);
|
|
const char *BKE_modifier_path_relbase(struct Main *bmain, struct Object *ob);
|
|
const char *BKE_modifier_path_relbase_from_global(struct Object *ob);
|
|
|
|
/* Accessors of original/evaluated modifiers. */
|
|
|
|
/**
|
|
* For a given modifier data, get corresponding original one.
|
|
* If the modifier data is already original, return it as-is.
|
|
*/
|
|
struct ModifierData *BKE_modifier_get_original(const struct Object *object,
|
|
struct ModifierData *md);
|
|
struct ModifierData *BKE_modifier_get_evaluated(struct Depsgraph *depsgraph,
|
|
struct Object *object,
|
|
struct ModifierData *md);
|
|
|
|
/* wrappers for modifier callbacks that ensure valid normals */
|
|
|
|
struct Mesh *BKE_modifier_modify_mesh(ModifierData *md,
|
|
const struct ModifierEvalContext *ctx,
|
|
struct Mesh *me);
|
|
|
|
void BKE_modifier_deform_verts(ModifierData *md,
|
|
const struct ModifierEvalContext *ctx,
|
|
struct Mesh *me,
|
|
float (*vertexCos)[3],
|
|
int numVerts);
|
|
|
|
void BKE_modifier_deform_vertsEM(ModifierData *md,
|
|
const struct ModifierEvalContext *ctx,
|
|
struct BMEditMesh *em,
|
|
struct Mesh *me,
|
|
float (*vertexCos)[3],
|
|
int numVerts);
|
|
|
|
/**
|
|
* Get evaluated mesh for other evaluated object, which is used as an operand for the modifier,
|
|
* e.g. second operand for boolean modifier.
|
|
* Note that modifiers in stack always get fully evaluated COW ID pointers,
|
|
* never original ones. Makes things simpler.
|
|
*/
|
|
struct Mesh *BKE_modifier_get_evaluated_mesh_from_evaluated_object(struct Object *ob_eval);
|
|
|
|
void BKE_modifier_check_uuids_unique_and_report(const struct Object *object);
|
|
|
|
void BKE_modifier_blend_write(struct BlendWriter *writer,
|
|
const struct ID *id_owner,
|
|
struct ListBase *modbase);
|
|
void BKE_modifier_blend_read_data(struct BlendDataReader *reader,
|
|
struct ListBase *lb,
|
|
struct Object *ob);
|
|
void BKE_modifier_blend_read_lib(struct BlendLibReader *reader, struct Object *ob);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
|
|
namespace blender::bke {
|
|
|
|
/**
|
|
* A convenience class that can be used to set `ModifierData::execution_time` based on the lifetime
|
|
* of this class.
|
|
*/
|
|
class ScopedModifierTimer {
|
|
private:
|
|
ModifierData &md_;
|
|
double start_time_;
|
|
|
|
public:
|
|
ScopedModifierTimer(ModifierData &md);
|
|
~ScopedModifierTimer();
|
|
};
|
|
|
|
} // namespace blender::bke
|
|
|
|
#endif
|