271 lines
8.7 KiB
C++
271 lines
8.7 KiB
C++
/* SPDX-FileCopyrightText: 2017 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup modifiers
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*/
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#include <cstdio>
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#include <cstring> /* For #MEMCPY_STRUCT_AFTER. */
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#include "BLI_listbase.h"
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#include "BLI_utildefines.h"
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#include "BLT_translation.hh"
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#include "DNA_defaults.h"
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#include "DNA_gpencil_legacy_types.h"
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#include "DNA_gpencil_modifier_types.h"
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#include "DNA_meshdata_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_deform.hh"
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#include "BKE_gpencil_geom_legacy.h"
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#include "BKE_gpencil_modifier_legacy.h"
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#include "BKE_lattice.hh"
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#include "BKE_lib_query.hh"
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#include "BKE_modifier.hh"
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#include "BKE_scene.hh"
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#include "UI_interface.hh"
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#include "UI_resources.hh"
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#include "RNA_access.hh"
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#include "MOD_gpencil_legacy_ui_common.h"
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#include "MOD_gpencil_legacy_util.h"
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#include "DEG_depsgraph.hh"
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#include "DEG_depsgraph_build.hh"
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#include "DEG_depsgraph_query.hh"
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static void init_data(GpencilModifierData *md)
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{
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LatticeGpencilModifierData *gpmd = (LatticeGpencilModifierData *)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(LatticeGpencilModifierData), modifier);
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}
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static void copy_data(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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static void deform_stroke(GpencilModifierData *md,
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Depsgraph * /*depsgraph*/,
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Object *ob,
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bGPDlayer *gpl,
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bGPDframe * /*gpf*/,
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bGPDstroke *gps)
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{
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bGPdata *gpd = static_cast<bGPdata *>(ob->data);
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LatticeGpencilModifierData *mmd = (LatticeGpencilModifierData *)md;
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const int def_nr = BKE_object_defgroup_name_index(ob, mmd->vgname);
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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_LATTICE_INVERT_LAYER,
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mmd->flag & GP_LATTICE_INVERT_PASS,
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mmd->flag & GP_LATTICE_INVERT_LAYERPASS,
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mmd->flag & GP_LATTICE_INVERT_MATERIAL))
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{
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return;
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}
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if (mmd->cache_data == nullptr) {
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return;
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}
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for (int i = 0; i < gps->totpoints; i++) {
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bGPDspoint *pt = &gps->points[i];
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MDeformVert *dvert = gps->dvert != nullptr ? &gps->dvert[i] : nullptr;
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/* verify vertex group */
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const float weight = get_modifier_point_weight(
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dvert, (mmd->flag & GP_LATTICE_INVERT_VGROUP) != 0, def_nr);
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if (weight < 0.0f) {
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continue;
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}
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BKE_lattice_deform_data_eval_co(
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(LatticeDeformData *)mmd->cache_data, &pt->x, mmd->strength * weight);
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}
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/* Calc geometry data. */
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BKE_gpencil_stroke_geometry_update(gpd, gps);
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}
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/* FIXME: Ideally we be doing this on a copy of the main depsgraph
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* (i.e. one where we don't have to worry about restoring state)
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*/
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static void bake_modifier(Main * /*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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LatticeGpencilModifierData *mmd = (LatticeGpencilModifierData *)md;
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Scene *scene = DEG_get_evaluated_scene(depsgraph);
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LatticeDeformData *ldata = nullptr;
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bGPdata *gpd = static_cast<bGPdata *>(ob->data);
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int oldframe = int(DEG_get_ctime(depsgraph));
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if ((mmd->object == nullptr) || (mmd->object->type != OB_LATTICE)) {
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return;
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}
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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 lattice effects on this frame
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* NOTE: this assumes that we don't want lattice animation on non-keyframed frames.
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*/
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scene->r.cfra = gpf->framenum;
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BKE_scene_graph_update_for_newframe(depsgraph);
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/* Recalculate lattice data. */
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if (mmd->cache_data) {
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BKE_lattice_deform_data_destroy(mmd->cache_data);
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}
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mmd->cache_data = BKE_lattice_deform_data_create(mmd->object, ob);
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/* Compute lattice effects on this frame. */
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LISTBASE_FOREACH (bGPDstroke *, gps, &gpf->strokes) {
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deform_stroke(md, depsgraph, ob, gpl, gpf, gps);
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}
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}
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}
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/* Free lingering data. */
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ldata = (LatticeDeformData *)mmd->cache_data;
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if (ldata) {
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BKE_lattice_deform_data_destroy(ldata);
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mmd->cache_data = nullptr;
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}
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/* Return frame state and DB to original state. */
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scene->r.cfra = oldframe;
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BKE_scene_graph_update_for_newframe(depsgraph);
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}
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static void free_data(GpencilModifierData *md)
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{
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LatticeGpencilModifierData *mmd = (LatticeGpencilModifierData *)md;
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LatticeDeformData *ldata = (LatticeDeformData *)mmd->cache_data;
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/* free deform data */
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if (ldata) {
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BKE_lattice_deform_data_destroy(ldata);
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}
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}
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static bool is_disabled(GpencilModifierData *md, bool /*use_render_params*/)
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{
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LatticeGpencilModifierData *mmd = (LatticeGpencilModifierData *)md;
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/* The object type check is only needed here in case we have a placeholder
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* object assigned (because the library containing the lattice is missing).
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*
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* In other cases it should be impossible to have a type mismatch.
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*/
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return !mmd->object || mmd->object->type != OB_LATTICE;
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}
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static void update_depsgraph(GpencilModifierData *md,
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const ModifierUpdateDepsgraphContext *ctx,
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const int /*mode*/)
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{
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LatticeGpencilModifierData *lmd = (LatticeGpencilModifierData *)md;
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if (lmd->object != nullptr) {
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DEG_add_object_relation(ctx->node, lmd->object, DEG_OB_COMP_GEOMETRY, "Lattice Modifier");
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DEG_add_object_relation(ctx->node, lmd->object, DEG_OB_COMP_TRANSFORM, "Lattice Modifier");
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}
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DEG_add_object_relation(ctx->node, ctx->object, DEG_OB_COMP_TRANSFORM, "Lattice Modifier");
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}
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static void foreach_ID_link(GpencilModifierData *md, Object *ob, IDWalkFunc walk, void *user_data)
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{
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LatticeGpencilModifierData *mmd = (LatticeGpencilModifierData *)md;
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walk(user_data, ob, (ID **)&mmd->material, IDWALK_CB_USER);
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walk(user_data, ob, (ID **)&mmd->object, IDWALK_CB_NOP);
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}
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static void panel_draw(const bContext * /*C*/, Panel *panel)
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{
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uiLayout *sub, *row, *col;
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uiLayout *layout = panel->layout;
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PointerRNA ob_ptr;
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PointerRNA *ptr = gpencil_modifier_panel_get_property_pointers(panel, &ob_ptr);
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PointerRNA hook_object_ptr = RNA_pointer_get(ptr, "object");
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bool has_vertex_group = RNA_string_length(ptr, "vertex_group") != 0;
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uiLayoutSetPropSep(layout, true);
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col = uiLayoutColumn(layout, false);
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uiItemR(col, ptr, "object", UI_ITEM_NONE, nullptr, ICON_NONE);
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if (!RNA_pointer_is_null(&hook_object_ptr) &&
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RNA_enum_get(&hook_object_ptr, "type") == OB_ARMATURE)
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{
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PointerRNA hook_object_data_ptr = RNA_pointer_get(&hook_object_ptr, "data");
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uiItemPointerR(
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col, ptr, "subtarget", &hook_object_data_ptr, "bones", IFACE_("Bone"), ICON_NONE);
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}
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row = uiLayoutRow(layout, true);
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uiItemPointerR(row, ptr, "vertex_group", &ob_ptr, "vertex_groups", nullptr, ICON_NONE);
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sub = uiLayoutRow(row, true);
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uiLayoutSetActive(sub, has_vertex_group);
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uiLayoutSetPropSep(sub, false);
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uiItemR(sub, ptr, "invert_vertex", UI_ITEM_NONE, "", ICON_ARROW_LEFTRIGHT);
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uiItemR(layout, ptr, "strength", UI_ITEM_R_SLIDER, nullptr, 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 * /*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 panel_register(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_Lattice, panel_draw);
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gpencil_modifier_subpanel_register(
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region_type, "mask", "Influence", nullptr, mask_panel_draw, panel_type);
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}
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GpencilModifierTypeInfo modifierType_Gpencil_Lattice = {
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/*name*/ N_("Lattice"),
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/*struct_name*/ "LatticeGpencilModifierData",
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/*struct_size*/ sizeof(LatticeGpencilModifierData),
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/*type*/ eGpencilModifierTypeType_Gpencil,
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/*flags*/ eGpencilModifierTypeFlag_SupportsEditmode,
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/*copy_data*/ copy_data,
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/*deform_stroke*/ deform_stroke,
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/*generate_strokes*/ nullptr,
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/*bake_modifier*/ bake_modifier,
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/*remap_time*/ nullptr,
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/*init_data*/ init_data,
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/*free_data*/ free_data,
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/*is_disabled*/ is_disabled,
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/*update_depsgraph*/ update_depsgraph,
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/*depends_on_time*/ nullptr,
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/*foreach_ID_link*/ foreach_ID_link,
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/*foreach_tex_link*/ nullptr,
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/*panel_register*/ panel_register,
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};
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