278 lines
8.6 KiB
C
278 lines
8.6 KiB
C
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2018, Blender Foundation
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* This is a new part of Blender
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*/
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/** \file
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* \ingroup modifiers
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*/
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#include <stdio.h>
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#include "BLI_utildefines.h"
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#include "BLI_listbase.h"
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#include "BLI_math.h"
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#include "BLT_translation.h"
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#include "DNA_defaults.h"
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#include "DNA_gpencil_modifier_types.h"
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#include "DNA_gpencil_types.h"
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#include "DNA_object_types.h"
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#include "DNA_scene_types.h"
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#include "DNA_screen_types.h"
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#include "BKE_context.h"
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#include "BKE_gpencil.h"
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#include "BKE_gpencil_modifier.h"
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#include "BKE_lib_query.h"
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#include "BKE_main.h"
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#include "BKE_modifier.h"
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#include "BKE_scene.h"
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#include "BKE_screen.h"
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#include "UI_interface.h"
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#include "UI_resources.h"
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#include "MOD_gpencil_modifiertypes.h"
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#include "MOD_gpencil_ui_common.h"
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#include "MOD_gpencil_util.h"
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#include "DEG_depsgraph.h"
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#include "DEG_depsgraph_build.h"
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#include "DEG_depsgraph_query.h"
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static void initData(GpencilModifierData *md)
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{
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MirrorGpencilModifierData *gpmd = (MirrorGpencilModifierData *)md;
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BLI_assert(MEMCMP_STRUCT_AFTER_IS_ZERO(gpmd, modifier));
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MEMCPY_STRUCT_AFTER(gpmd, DNA_struct_default_get(MirrorGpencilModifierData), modifier);
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}
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static void copyData(const GpencilModifierData *md, GpencilModifierData *target)
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{
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BKE_gpencil_modifier_copydata_generic(md, target);
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}
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/* Mirror is using current object as origin. */
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static void update_mirror_local(bGPDstroke *gps, int axis)
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{
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int i;
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bGPDspoint *pt;
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float factor[3] = {1.0f, 1.0f, 1.0f};
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factor[axis] = -1.0f;
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for (i = 0, pt = gps->points; i < gps->totpoints; i++, pt++) {
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mul_v3_v3(&pt->x, factor);
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}
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}
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/* Mirror is using other object as origin. */
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static void update_mirror_object(Object *ob,
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MirrorGpencilModifierData *mmd,
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bGPDstroke *gps,
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int axis)
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{
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float mtx[4][4];
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unit_m4(mtx);
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mtx[axis][axis] = -1.0f;
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float tmp[4][4];
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float itmp[4][4];
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invert_m4_m4(tmp, mmd->object->obmat);
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mul_m4_m4m4(tmp, tmp, ob->obmat);
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invert_m4_m4(itmp, tmp);
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mul_m4_series(mtx, itmp, mtx, tmp);
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for (int i = 0; i < gps->totpoints; i++) {
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mul_m4_v3(mtx, &gps->points[i].x);
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}
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}
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static void update_position(Object *ob, MirrorGpencilModifierData *mmd, bGPDstroke *gps, int axis)
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{
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if (mmd->object == NULL) {
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update_mirror_local(gps, axis);
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}
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else {
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update_mirror_object(ob, mmd, gps, axis);
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}
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}
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static void generate_geometry(GpencilModifierData *md, Object *ob, bGPDlayer *gpl, bGPDframe *gpf)
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{
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MirrorGpencilModifierData *mmd = (MirrorGpencilModifierData *)md;
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bGPDstroke *gps, *gps_new = NULL;
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int tot_strokes;
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int i;
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/* check each axis for mirroring */
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for (int xi = 0; xi < 3; xi++) {
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if (mmd->flag & (GP_MIRROR_AXIS_X << xi)) {
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/* count strokes to avoid infinite loop after adding new strokes to tail of listbase */
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tot_strokes = BLI_listbase_count(&gpf->strokes);
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for (i = 0, gps = gpf->strokes.first; i < tot_strokes; i++, gps = gps->next) {
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if (is_stroke_affected_by_modifier(ob,
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mmd->layername,
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mmd->material,
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mmd->pass_index,
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mmd->layer_pass,
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1,
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gpl,
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gps,
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mmd->flag & GP_MIRROR_INVERT_LAYER,
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mmd->flag & GP_MIRROR_INVERT_PASS,
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mmd->flag & GP_MIRROR_INVERT_LAYERPASS,
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mmd->flag & GP_MIRROR_INVERT_MATERIAL)) {
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gps_new = BKE_gpencil_stroke_duplicate(gps, true, true);
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update_position(ob, mmd, gps_new, xi);
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BLI_addtail(&gpf->strokes, gps_new);
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}
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}
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}
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}
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}
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/* Generic "generateStrokes" callback */
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static void generateStrokes(GpencilModifierData *md, Depsgraph *depsgraph, Object *ob)
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{
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Scene *scene = DEG_get_evaluated_scene(depsgraph);
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bGPdata *gpd = (bGPdata *)ob->data;
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LISTBASE_FOREACH (bGPDlayer *, gpl, &gpd->layers) {
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bGPDframe *gpf = BKE_gpencil_frame_retime_get(depsgraph, scene, ob, gpl);
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if (gpf == NULL) {
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continue;
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}
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generate_geometry(md, ob, gpl, gpf);
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}
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}
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static void bakeModifier(Main *UNUSED(bmain),
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Depsgraph *depsgraph,
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GpencilModifierData *md,
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Object *ob)
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{
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Scene *scene = DEG_get_evaluated_scene(depsgraph);
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bGPdata *gpd = ob->data;
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int oldframe = (int)DEG_get_ctime(depsgraph);
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LISTBASE_FOREACH (bGPDlayer *, gpl, &gpd->layers) {
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LISTBASE_FOREACH (bGPDframe *, gpf, &gpl->frames) {
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/* apply mirror effects on this frame */
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CFRA = gpf->framenum;
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BKE_scene_graph_update_for_newframe(depsgraph);
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/* compute mirror effects on this frame */
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generate_geometry(md, ob, gpl, gpf);
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}
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}
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/* return frame state and DB to original state */
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CFRA = oldframe;
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BKE_scene_graph_update_for_newframe(depsgraph);
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}
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static bool isDisabled(GpencilModifierData *UNUSED(md), int UNUSED(userRenderParams))
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{
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// MirrorGpencilModifierData *mmd = (MirrorGpencilModifierData *)md;
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return false;
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}
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static void updateDepsgraph(GpencilModifierData *md,
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const ModifierUpdateDepsgraphContext *ctx,
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const int UNUSED(mode))
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{
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MirrorGpencilModifierData *lmd = (MirrorGpencilModifierData *)md;
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if (lmd->object != NULL) {
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DEG_add_object_relation(ctx->node, lmd->object, DEG_OB_COMP_GEOMETRY, "Mirror Modifier");
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DEG_add_object_relation(ctx->node, lmd->object, DEG_OB_COMP_TRANSFORM, "Mirror Modifier");
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}
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DEG_add_object_relation(ctx->node, ctx->object, DEG_OB_COMP_TRANSFORM, "Mirror Modifier");
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}
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static void foreachIDLink(GpencilModifierData *md, Object *ob, IDWalkFunc walk, void *userData)
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{
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MirrorGpencilModifierData *mmd = (MirrorGpencilModifierData *)md;
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walk(userData, ob, (ID **)&mmd->material, IDWALK_CB_USER);
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walk(userData, ob, (ID **)&mmd->object, IDWALK_CB_NOP);
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}
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static void panel_draw(const bContext *UNUSED(C), Panel *panel)
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{
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uiLayout *row;
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uiLayout *layout = panel->layout;
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int toggles_flag = UI_ITEM_R_TOGGLE | UI_ITEM_R_FORCE_BLANK_DECORATE;
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PointerRNA *ptr = gpencil_modifier_panel_get_property_pointers(panel, NULL);
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uiLayoutSetPropSep(layout, true);
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row = uiLayoutRowWithHeading(layout, true, IFACE_("Axis"));
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uiItemR(row, ptr, "use_axis_x", toggles_flag, NULL, ICON_NONE);
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uiItemR(row, ptr, "use_axis_y", toggles_flag, NULL, ICON_NONE);
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uiItemR(row, ptr, "use_axis_z", toggles_flag, NULL, ICON_NONE);
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uiItemR(layout, ptr, "object", 0, NULL, ICON_NONE);
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gpencil_modifier_panel_end(layout, ptr);
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}
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static void mask_panel_draw(const bContext *UNUSED(C), Panel *panel)
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{
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gpencil_modifier_masking_panel_draw(panel, true, false);
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}
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static void panelRegister(ARegionType *region_type)
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{
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PanelType *panel_type = gpencil_modifier_panel_register(
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region_type, eGpencilModifierType_Mirror, panel_draw);
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gpencil_modifier_subpanel_register(
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region_type, "mask", "Influence", NULL, mask_panel_draw, panel_type);
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}
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GpencilModifierTypeInfo modifierType_Gpencil_Mirror = {
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/* name */ "Mirror",
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/* structName */ "MirrorGpencilModifierData",
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/* structSize */ sizeof(MirrorGpencilModifierData),
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/* type */ eGpencilModifierTypeType_Gpencil,
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/* flags */ eGpencilModifierTypeFlag_SupportsEditmode,
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/* copyData */ copyData,
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/* deformStroke */ NULL,
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/* generateStrokes */ generateStrokes,
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/* bakeModifier */ bakeModifier,
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/* remapTime */ NULL,
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/* initData */ initData,
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/* freeData */ NULL,
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/* isDisabled */ isDisabled,
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/* updateDepsgraph */ updateDepsgraph,
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/* dependsOnTime */ NULL,
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/* foreachIDLink */ foreachIDLink,
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/* foreachTexLink */ NULL,
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/* panelRegister */ panelRegister,
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};
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