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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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) 2017, Blender Foundation
* This is a new part of Blender
*
* Contributor(s): Antonio Vazquez
*
* ***** END GPL LICENSE BLOCK *****
*
*/
/** \file blender/gpencil_modifiers/intern/MOD_gpenciloffset.c
* \ingroup modifiers
*/
#include <stdio.h>
#include "DNA_meshdata_types.h"
#include "DNA_scene_types.h"
#include "DNA_object_types.h"
#include "DNA_gpencil_types.h"
#include "DNA_gpencil_modifier_types.h"
#include "BLI_utildefines.h"
#include "BLI_math.h"
#include "BKE_colortools.h"
#include "BKE_context.h"
#include "BKE_deform.h"
#include "BKE_gpencil.h"
#include "BKE_gpencil_modifier.h"
#include "DEG_depsgraph.h"
#include "MOD_gpencil_util.h"
#include "MOD_gpencil_modifiertypes.h"
static void initData(GpencilModifierData *md)
{
OffsetGpencilModifierData *gpmd = (OffsetGpencilModifierData *)md;
gpmd->pass_index = 0;
gpmd->layername[0] = '\0';
gpmd->vgname[0] = '\0';
ARRAY_SET_ITEMS(gpmd->loc, 0.0f, 0.0f, 0.0f);
ARRAY_SET_ITEMS(gpmd->rot, 0.0f, 0.0f, 0.0f);
ARRAY_SET_ITEMS(gpmd->scale, 0.0f, 0.0f, 0.0f);
}
static void copyData(const GpencilModifierData *md, GpencilModifierData *target)
{
BKE_gpencil_modifier_copyData_generic(md, target);
}
/* change stroke offsetness */
static void deformStroke(
GpencilModifierData *md, Depsgraph *UNUSED(depsgraph),
Object *ob, bGPDlayer *gpl, bGPDstroke *gps)
{
OffsetGpencilModifierData *mmd = (OffsetGpencilModifierData *)md;
const int def_nr = defgroup_name_index(ob, mmd->vgname);
float mat[4][4];
float loc[3], rot[3], scale[3];
if (!is_stroke_affected_by_modifier(ob,
mmd->layername, mmd->pass_index, 1, gpl, gps,
mmd->flag & GP_OFFSET_INVERT_LAYER, mmd->flag & GP_OFFSET_INVERT_PASS))
{
return;
}
for (int i = 0; i < gps->totpoints; i++) {
bGPDspoint *pt = &gps->points[i];
MDeformVert *dvert = &gps->dvert[i];
/* verify vertex group */
const float weight = get_modifier_point_weight(dvert, (mmd->flag & GP_OFFSET_INVERT_VGROUP) != 0, def_nr);
if (weight < 0.0f) {
continue;
}
/* calculate matrix */
mul_v3_v3fl(loc, mmd->loc, weight);
mul_v3_v3fl(rot, mmd->rot, weight);
mul_v3_v3fl(scale, mmd->scale, weight);
add_v3_fl(scale, 1.0);
loc_eul_size_to_mat4(mat, loc, rot, scale);
mul_m4_v3(mat, &pt->x);
}
}
static void bakeModifier(
struct Main *UNUSED(bmain), Depsgraph *depsgraph,
GpencilModifierData *md, Object *ob)
{
bGPdata *gpd = ob->data;
for (bGPDlayer *gpl = gpd->layers.first; gpl; gpl = gpl->next) {
for (bGPDframe *gpf = gpl->frames.first; gpf; gpf = gpf->next) {
for (bGPDstroke *gps = gpf->strokes.first; gps; gps = gps->next) {
deformStroke(md, depsgraph, ob, gpl, gps);
}
}
}
}
GpencilModifierTypeInfo modifierType_Gpencil_Offset = {
/* name */ "Offset",
/* structName */ "OffsetGpencilModifierData",
/* structSize */ sizeof(OffsetGpencilModifierData),
/* type */ eGpencilModifierTypeType_Gpencil,
/* flags */ eGpencilModifierTypeFlag_SupportsEditmode,
/* copyData */ copyData,
/* deformStroke */ deformStroke,
/* generateStrokes */ NULL,
/* bakeModifier */ bakeModifier,
/* initData */ initData,
/* freeData */ NULL,
/* isDisabled */ NULL,
/* updateDepsgraph */ NULL,
/* dependsOnTime */ NULL,
/* foreachObjectLink */ NULL,
/* foreachIDLink */ NULL,
/* foreachTexLink */ NULL,
};
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