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blender-archive/source/blender/modifiers/intern/MOD_lattice.c
Hans Goudey e032ca2e25 Cleanup: Replace modifyVolume with modifyGeometrySet
This allows us to remove a callback from the modifier type info struct.
In the future the these modifiers might just be replaced by nodes
internally anyway, but in the meantime it's nice to unify the handling
of evaluated geometry a bit.

Differential Revision: https://developer.blender.org/D11080
2021-04-26 14:42:03 -05:00

211 lines
6.4 KiB
C

/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2005 by the Blender Foundation.
* All rights reserved.
*/
/** \file
* \ingroup modifiers
*/
#include <string.h>
#include "BLI_utildefines.h"
#include "BLT_translation.h"
#include "DNA_defaults.h"
#include "DNA_object_types.h"
#include "DNA_screen_types.h"
#include "BKE_context.h"
#include "BKE_editmesh.h"
#include "BKE_lattice.h"
#include "BKE_lib_id.h"
#include "BKE_lib_query.h"
#include "BKE_mesh.h"
#include "BKE_mesh_wrapper.h"
#include "BKE_modifier.h"
#include "BKE_screen.h"
#include "UI_interface.h"
#include "UI_resources.h"
#include "RNA_access.h"
#include "DEG_depsgraph_query.h"
#include "MEM_guardedalloc.h"
#include "MOD_ui_common.h"
#include "MOD_util.h"
static void initData(ModifierData *md)
{
LatticeModifierData *lmd = (LatticeModifierData *)md;
BLI_assert(MEMCMP_STRUCT_AFTER_IS_ZERO(lmd, modifier));
MEMCPY_STRUCT_AFTER(lmd, DNA_struct_default_get(LatticeModifierData), modifier);
}
static void requiredDataMask(Object *UNUSED(ob),
ModifierData *md,
CustomData_MeshMasks *r_cddata_masks)
{
LatticeModifierData *lmd = (LatticeModifierData *)md;
/* ask for vertexgroups if we need them */
if (lmd->name[0] != '\0') {
r_cddata_masks->vmask |= CD_MASK_MDEFORMVERT;
}
}
static bool isDisabled(const struct Scene *UNUSED(scene),
ModifierData *md,
bool UNUSED(userRenderParams))
{
LatticeModifierData *lmd = (LatticeModifierData *)md;
/* The object type check is only needed here in case we have a placeholder
* object assigned (because the library containing the lattice is missing).
*
* In other cases it should be impossible to have a type mismatch.
*/
return !lmd->object || lmd->object->type != OB_LATTICE;
}
static void foreachIDLink(ModifierData *md, Object *ob, IDWalkFunc walk, void *userData)
{
LatticeModifierData *lmd = (LatticeModifierData *)md;
walk(userData, ob, (ID **)&lmd->object, IDWALK_CB_NOP);
}
static void updateDepsgraph(ModifierData *md, const ModifierUpdateDepsgraphContext *ctx)
{
LatticeModifierData *lmd = (LatticeModifierData *)md;
if (lmd->object != NULL) {
DEG_add_object_relation(ctx->node, lmd->object, DEG_OB_COMP_GEOMETRY, "Lattice Modifier");
DEG_add_object_relation(ctx->node, lmd->object, DEG_OB_COMP_TRANSFORM, "Lattice Modifier");
}
DEG_add_modifier_to_transform_relation(ctx->node, "Lattice Modifier");
}
static void deformVerts(ModifierData *md,
const ModifierEvalContext *ctx,
struct Mesh *mesh,
float (*vertexCos)[3],
int numVerts)
{
LatticeModifierData *lmd = (LatticeModifierData *)md;
struct Mesh *mesh_src = MOD_deform_mesh_eval_get(
ctx->object, NULL, mesh, NULL, numVerts, false, false);
MOD_previous_vcos_store(md, vertexCos); /* if next modifier needs original vertices */
BKE_lattice_deform_coords_with_mesh(lmd->object,
ctx->object,
vertexCos,
numVerts,
lmd->flag,
lmd->name,
lmd->strength,
mesh_src);
if (!ELEM(mesh_src, NULL, mesh)) {
BKE_id_free(NULL, mesh_src);
}
}
static void deformVertsEM(ModifierData *md,
const ModifierEvalContext *ctx,
struct BMEditMesh *em,
struct Mesh *mesh,
float (*vertexCos)[3],
int numVerts)
{
if (mesh != NULL) {
deformVerts(md, ctx, mesh, vertexCos, numVerts);
return;
}
LatticeModifierData *lmd = (LatticeModifierData *)md;
MOD_previous_vcos_store(md, vertexCos); /* if next modifier needs original vertices */
BKE_lattice_deform_coords_with_editmesh(
lmd->object, ctx->object, vertexCos, numVerts, lmd->flag, lmd->name, lmd->strength, em);
}
static void panel_draw(const bContext *UNUSED(C), Panel *panel)
{
uiLayout *layout = panel->layout;
PointerRNA ob_ptr;
PointerRNA *ptr = modifier_panel_get_property_pointers(panel, &ob_ptr);
uiLayoutSetPropSep(layout, true);
uiItemR(layout, ptr, "object", 0, NULL, ICON_NONE);
modifier_vgroup_ui(layout, ptr, &ob_ptr, "vertex_group", "invert_vertex_group", NULL);
uiItemR(layout, ptr, "strength", UI_ITEM_R_SLIDER, NULL, ICON_NONE);
modifier_panel_end(layout, ptr);
}
static void panelRegister(ARegionType *region_type)
{
modifier_panel_register(region_type, eModifierType_Lattice, panel_draw);
}
ModifierTypeInfo modifierType_Lattice = {
/* name */ "Lattice",
/* structName */ "LatticeModifierData",
/* structSize */ sizeof(LatticeModifierData),
/* srna */ &RNA_LatticeModifier,
/* type */ eModifierTypeType_OnlyDeform,
/* flags */ eModifierTypeFlag_AcceptsCVs | eModifierTypeFlag_AcceptsVertexCosOnly |
eModifierTypeFlag_SupportsEditmode,
/* icon */ ICON_MOD_LATTICE,
/* copyData */ BKE_modifier_copydata_generic,
/* deformVerts */ deformVerts,
/* deformMatrices */ NULL,
/* deformVertsEM */ deformVertsEM,
/* deformMatricesEM */ NULL,
/* modifyMesh */ NULL,
/* modifyHair */ NULL,
/* modifyGeometrySet */ NULL,
/* initData */ initData,
/* requiredDataMask */ requiredDataMask,
/* freeData */ NULL,
/* isDisabled */ isDisabled,
/* updateDepsgraph */ updateDepsgraph,
/* dependsOnTime */ NULL,
/* dependsOnNormals */ NULL,
/* foreachIDLink */ foreachIDLink,
/* foreachTexLink */ NULL,
/* freeRuntimeData */ NULL,
/* panelRegister */ panelRegister,
/* blendWrite */ NULL,
/* blendRead */ NULL,
};