diff options
Diffstat (limited to 'source/blender/gpencil_modifiers/intern/MOD_gpencilmirror.c')
| -rw-r--r-- | source/blender/gpencil_modifiers/intern/MOD_gpencilmirror.c | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/source/blender/gpencil_modifiers/intern/MOD_gpencilmirror.c b/source/blender/gpencil_modifiers/intern/MOD_gpencilmirror.c new file mode 100644 index 00000000000..4c359be670f --- /dev/null +++ b/source/blender/gpencil_modifiers/intern/MOD_gpencilmirror.c @@ -0,0 +1,210 @@ +/* + * ***** 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) 2018, Blender Foundation + * This is a new part of Blender + * + * Contributor(s): Antonio Vazquez + * + * ***** END GPL LICENSE BLOCK ***** + * + */ + +/** \file blender/gpencil_modifiers/intern/MOD_gpencilmirror.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_listbase.h" +#include "BLI_math.h" +#include "BLI_utildefines.h" + +#include "BKE_context.h" +#include "BKE_deform.h" +#include "BKE_gpencil.h" +#include "BKE_gpencil_modifier.h" +#include "BKE_modifier.h" +#include "BKE_library_query.h" +#include "BKE_scene.h" +#include "BKE_main.h" +#include "BKE_layer.h" + +#include "MEM_guardedalloc.h" + +#include "MOD_gpencil_util.h" +#include "MOD_gpencil_modifiertypes.h" + +#include "DEG_depsgraph.h" +#include "DEG_depsgraph_build.h" +#include "DEG_depsgraph_query.h" + +static void initData(GpencilModifierData *md) +{ + MirrorGpencilModifierData *gpmd = (MirrorGpencilModifierData *)md; + gpmd->pass_index = 0; + gpmd->layername[0] = '\0'; + gpmd->object = NULL; + gpmd->flag |= GP_MIRROR_AXIS_X; +} + +static void copyData(const GpencilModifierData *md, GpencilModifierData *target) +{ + BKE_gpencil_modifier_copyData_generic(md, target); +} + +static void update_position(Object *ob, MirrorGpencilModifierData *mmd, bGPDstroke *gps, int axis) +{ + int i; + bGPDspoint *pt; + float factor[3] = { 1.0f, 1.0f, 1.0f }; + factor[axis] = -1.0f; + + float clear[3] = { 0.0f, 0.0f, 0.0f }; + clear[axis] = 1.0f; + + float origin[3]; + float mirror_origin[3]; + + copy_v3_v3(origin, ob->loc); + /* only works with current axis */ + mul_v3_v3(origin, clear); + zero_v3(mirror_origin); + + if (mmd->object) { + copy_v3_v3(mirror_origin, mmd->object->loc); + mul_v3_v3(mirror_origin, clear); + sub_v3_v3(origin, mirror_origin); + } + /* clear other axis */ + for (i = 0, pt = gps->points; i < gps->totpoints; i++, pt++) { + add_v3_v3(&pt->x, origin); + mul_v3_v3(&pt->x, factor); + add_v3_v3(&pt->x, mirror_origin); + } + +} + +/* Generic "generateStrokes" callback */ +static void generateStrokes( + GpencilModifierData *md, Depsgraph *UNUSED(depsgraph), + Object *ob, bGPDlayer *gpl, bGPDframe *gpf) +{ + MirrorGpencilModifierData *mmd = (MirrorGpencilModifierData *)md; + bGPDstroke *gps, *gps_new = NULL; + int tot_strokes; + int i; + + /* check each axis for mirroring */ + for (int xi = 0; xi < 3; ++xi) { + if (mmd->flag & (GP_MIRROR_AXIS_X << xi)) { + + /* count strokes to avoid infinite loop after adding new strokes to tail of listbase */ + tot_strokes = BLI_listbase_count(&gpf->strokes); + + for (i = 0, gps = gpf->strokes.first; i < tot_strokes; i++, gps = gps->next) { + if (is_stroke_affected_by_modifier( + ob, mmd->layername, mmd->pass_index, 1, gpl, gps, + mmd->flag & GP_MIRROR_INVERT_LAYER, mmd->flag & GP_MIRROR_INVERT_PASS)) + { + gps_new = BKE_gpencil_stroke_duplicate(gps); + update_position(ob, mmd, gps_new, xi); + BLI_addtail(&gpf->strokes, gps_new); + } + } + } + } +} + +static void bakeModifier( + Main *bmain, Depsgraph *depsgraph, + GpencilModifierData *md, Object *ob) +{ + Scene *scene = DEG_get_evaluated_scene(depsgraph); + bGPdata *gpd = ob->data; + int oldframe = (int)DEG_get_ctime(depsgraph); + + for (bGPDlayer *gpl = gpd->layers.first; gpl; gpl = gpl->next) { + for (bGPDframe *gpf = gpl->frames.first; gpf; gpf = gpf->next) { + /* apply mirror effects on this frame */ + CFRA = gpf->framenum; + BKE_scene_graph_update_for_newframe(depsgraph, bmain); + + /* compute mirror effects on this frame */ + generateStrokes(md, depsgraph, ob, gpl, gpf); + } + } + + /* return frame state and DB to original state */ + CFRA = oldframe; + BKE_scene_graph_update_for_newframe(depsgraph, bmain); +} + +static bool isDisabled(GpencilModifierData *UNUSED(md), int UNUSED(userRenderParams)) +{ + //MirrorGpencilModifierData *mmd = (MirrorGpencilModifierData *)md; + + return false; +} + +static void updateDepsgraph(GpencilModifierData *md, const ModifierUpdateDepsgraphContext *ctx) +{ + MirrorGpencilModifierData *lmd = (MirrorGpencilModifierData *)md; + if (lmd->object != NULL) { + DEG_add_object_relation(ctx->node, lmd->object, DEG_OB_COMP_GEOMETRY, "Mirror Modifier"); + DEG_add_object_relation(ctx->node, lmd->object, DEG_OB_COMP_TRANSFORM, "Mirror Modifier"); + } + DEG_add_object_relation(ctx->node, ctx->object, DEG_OB_COMP_TRANSFORM, "Mirror Modifier"); +} + +static void foreachObjectLink( + GpencilModifierData *md, Object *ob, + ObjectWalkFunc walk, void *userData) +{ + MirrorGpencilModifierData *mmd = (MirrorGpencilModifierData *)md; + + walk(userData, ob, &mmd->object, IDWALK_CB_NOP); +} + +GpencilModifierTypeInfo modifierType_Gpencil_Mirror = { + /* name */ "Mirror", + /* structName */ "MirrorGpencilModifierData", + /* structSize */ sizeof(MirrorGpencilModifierData), + /* type */ eGpencilModifierTypeType_Gpencil, + /* flags */ eGpencilModifierTypeFlag_SupportsEditmode, + + /* copyData */ copyData, + + /* deformStroke */ NULL, + /* generateStrokes */ generateStrokes, + /* bakeModifier */ bakeModifier, + + /* initData */ initData, + /* freeData */ NULL, + /* isDisabled */ isDisabled, + /* updateDepsgraph */ updateDepsgraph, + /* dependsOnTime */ NULL, + /* foreachObjectLink */ foreachObjectLink, + /* foreachIDLink */ NULL, + /* foreachTexLink */ NULL, +}; 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