diff options
Diffstat (limited to 'source/blender/gpencil_modifiers/intern/MOD_gpencilthick.c')
| -rw-r--r-- | source/blender/gpencil_modifiers/intern/MOD_gpencilthick.c | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/source/blender/gpencil_modifiers/intern/MOD_gpencilthick.c b/source/blender/gpencil_modifiers/intern/MOD_gpencilthick.c new file mode 100644 index 00000000000..118cc33255f --- /dev/null +++ b/source/blender/gpencil_modifiers/intern/MOD_gpencilthick.c @@ -0,0 +1,171 @@ +/* + * ***** 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/modifiers/intern/MOD_gpencilthick.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 "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) +{ + ThickGpencilModifierData *gpmd = (ThickGpencilModifierData *)md; + gpmd->pass_index = 0; + gpmd->thickness = 0; + gpmd->layername[0] = '\0'; + gpmd->vgname[0] = '\0'; + gpmd->curve_thickness = curvemapping_add(1, 0.0f, 0.0f, 1.0f, 1.0f); + if (gpmd->curve_thickness) { + curvemapping_initialize(gpmd->curve_thickness); + } +} + +static void freeData(GpencilModifierData *md) +{ + ThickGpencilModifierData *gpmd = (ThickGpencilModifierData *)md; + + if (gpmd->curve_thickness) { + curvemapping_free(gpmd->curve_thickness); + } +} + +static void copyData(const GpencilModifierData *md, GpencilModifierData *target) +{ + ThickGpencilModifierData *gmd = (ThickGpencilModifierData *)md; + ThickGpencilModifierData *tgmd = (ThickGpencilModifierData *)target; + + if (tgmd->curve_thickness != NULL) { + curvemapping_free(tgmd->curve_thickness); + tgmd->curve_thickness = NULL; + } + + BKE_gpencil_modifier_copyData_generic(md, target); + + tgmd->curve_thickness = curvemapping_copy(gmd->curve_thickness); +} + +/* change stroke thickness */ +static void deformStroke( + GpencilModifierData *md, Depsgraph *UNUSED(depsgraph), + Object *ob, bGPDlayer *gpl, bGPDstroke *gps) +{ + ThickGpencilModifierData *mmd = (ThickGpencilModifierData *)md; + int vindex = defgroup_name_index(ob, mmd->vgname); + + if (!is_stroke_affected_by_modifier(ob, + mmd->layername, mmd->pass_index, 3, gpl, gps, + mmd->flag & GP_THICK_INVERT_LAYER, mmd->flag & GP_THICK_INVERT_PASS)) + { + return; + } + + /* if normalize, set stroke thickness */ + if (mmd->flag & GP_THICK_NORMALIZE) { + gps->thickness = mmd->thickness; + } + + for (int i = 0; i < gps->totpoints; i++) { + bGPDspoint *pt = &gps->points[i]; + MDeformVert *dvert = &gps->dvert[i]; + float curvef = 1.0f; + /* verify vertex group */ + float weight = get_modifier_point_weight(dvert, (int)(!(mmd->flag & GP_THICK_INVERT_VGROUP) == 0), vindex); + if (weight < 0) { + continue; + } + + if (mmd->flag & GP_THICK_NORMALIZE) { + pt->pressure = 1.0f; + } + else { + if ((mmd->flag & GP_THICK_CUSTOM_CURVE) && (mmd->curve_thickness)) { + /* normalize value to evaluate curve */ + float value = (float)i / (gps->totpoints - 1); + curvef = curvemapping_evaluateF(mmd->curve_thickness, 0, value); + } + + pt->pressure += mmd->thickness * weight * curvef; + CLAMP(pt->strength, 0.0f, 1.0f); + } + } +} + +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_Thick = { + /* name */ "Thickness", + /* structName */ "ThickGpencilModifierData", + /* structSize */ sizeof(ThickGpencilModifierData), + /* type */ eGpencilModifierTypeType_Gpencil, + /* flags */ eGpencilModifierTypeFlag_SupportsEditmode, + + /* copyData */ copyData, + + /* deformStroke */ deformStroke, + /* generateStrokes */ NULL, + /* bakeModifier */ bakeModifier, + + /* initData */ initData, + /* freeData */ freeData, + /* isDisabled */ NULL, + /* updateDepsgraph */ NULL, + /* dependsOnTime */ NULL, + /* foreachObjectLink */ NULL, + /* foreachIDLink */ NULL, + /* foreachTexLink */ NULL, +}; |