299 lines
9.4 KiB
C++
299 lines
9.4 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>
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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_screen_types.h"
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#include "BKE_colortools.hh"
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#include "BKE_deform.hh"
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#include "BKE_gpencil_modifier_legacy.h"
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#include "BKE_lib_query.hh"
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#include "BKE_modifier.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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static void init_data(GpencilModifierData *md)
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{
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OpacityGpencilModifierData *gpmd = (OpacityGpencilModifierData *)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(OpacityGpencilModifierData), modifier);
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gpmd->curve_intensity = BKE_curvemapping_add(1, 0.0f, 0.0f, 1.0f, 1.0f);
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BKE_curvemapping_init(gpmd->curve_intensity);
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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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OpacityGpencilModifierData *gmd = (OpacityGpencilModifierData *)md;
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OpacityGpencilModifierData *tgmd = (OpacityGpencilModifierData *)target;
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if (tgmd->curve_intensity != nullptr) {
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BKE_curvemapping_free(tgmd->curve_intensity);
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tgmd->curve_intensity = nullptr;
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}
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BKE_gpencil_modifier_copydata_generic(md, target);
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tgmd->curve_intensity = BKE_curvemapping_copy(gmd->curve_intensity);
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}
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/* opacity strokes */
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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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OpacityGpencilModifierData *mmd = (OpacityGpencilModifierData *)md;
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const int def_nr = BKE_object_defgroup_name_index(ob, mmd->vgname);
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const bool use_curve = (mmd->flag & GP_OPACITY_CUSTOM_CURVE) != 0 && mmd->curve_intensity;
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const bool is_normalized = (mmd->flag & GP_OPACITY_NORMALIZE);
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bool is_inverted = ((mmd->flag & GP_OPACITY_WEIGHT_FACTOR) == 0) &&
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((mmd->flag & GP_OPACITY_INVERT_VGROUP) != 0);
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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_OPACITY_INVERT_LAYER,
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mmd->flag & GP_OPACITY_INVERT_PASS,
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mmd->flag & GP_OPACITY_INVERT_LAYERPASS,
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mmd->flag & GP_OPACITY_INVERT_MATERIAL))
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{
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return;
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}
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/* Hardness (at stroke level). */
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if (mmd->modify_color == GP_MODIFY_COLOR_HARDNESS) {
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gps->hardness *= mmd->hardness;
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CLAMP(gps->hardness, 0.0f, 1.0f);
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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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/* Stroke using strength. */
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if (mmd->modify_color != GP_MODIFY_COLOR_FILL) {
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/* verify vertex group */
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float weight = get_modifier_point_weight(dvert, is_inverted, def_nr);
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if (weight < 0.0f) {
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continue;
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}
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/* Apply weight directly. */
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if ((mmd->flag & GP_OPACITY_WEIGHT_FACTOR) && (!is_normalized)) {
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pt->strength *= ((mmd->flag & GP_OPACITY_INVERT_VGROUP) ? 1.0f - weight : weight);
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continue;
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}
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/* Custom curve to modulate value. */
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float factor_curve = mmd->factor;
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if (use_curve) {
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float value = float(i) / (gps->totpoints - 1);
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factor_curve *= BKE_curvemapping_evaluateF(mmd->curve_intensity, 0, value);
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}
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if (def_nr < 0) {
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if (mmd->flag & GP_OPACITY_NORMALIZE) {
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pt->strength = factor_curve;
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}
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else {
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pt->strength += factor_curve - 1.0f;
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}
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}
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else {
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/* High factor values, change weight too. */
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if ((factor_curve > 1.0f) && (weight < 1.0f)) {
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weight += factor_curve - 1.0f;
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CLAMP(weight, 0.0f, 1.0f);
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}
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if (mmd->flag & GP_OPACITY_NORMALIZE) {
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pt->strength = factor_curve;
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}
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else {
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pt->strength += (factor_curve - 1) * weight;
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}
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}
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CLAMP(pt->strength, 0.0f, 1.0f);
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}
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}
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/* Fill using opacity factor. */
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if (mmd->modify_color != GP_MODIFY_COLOR_STROKE) {
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float fill_factor = mmd->factor;
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if ((mmd->flag & GP_OPACITY_WEIGHT_FACTOR) && (!is_normalized)) {
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/* Use first point for weight. */
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MDeformVert *dvert = (gps->dvert != nullptr) ? &gps->dvert[0] : nullptr;
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float weight = get_modifier_point_weight(
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dvert, (mmd->flag & GP_OPACITY_INVERT_VGROUP) != 0, def_nr);
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if (weight >= 0.0f) {
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fill_factor = ((mmd->flag & GP_OPACITY_INVERT_VGROUP) ? 1.0f - weight : weight);
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}
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}
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gps->fill_opacity_fac = fill_factor;
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CLAMP(gps->fill_opacity_fac, 0.0f, 1.0f);
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}
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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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generic_bake_deform_stroke(depsgraph, md, ob, false, deform_stroke);
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}
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static void free_data(GpencilModifierData *md)
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{
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OpacityGpencilModifierData *gpmd = (OpacityGpencilModifierData *)md;
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if (gpmd->curve_intensity) {
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BKE_curvemapping_free(gpmd->curve_intensity);
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}
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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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OpacityGpencilModifierData *mmd = (OpacityGpencilModifierData *)md;
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walk(user_data, ob, (ID **)&mmd->material, IDWALK_CB_USER);
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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 *layout = panel->layout;
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PointerRNA *ptr = gpencil_modifier_panel_get_property_pointers(panel, nullptr);
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uiLayoutSetPropSep(layout, true);
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int modify_color = RNA_enum_get(ptr, "modify_color");
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uiItemR(layout, ptr, "modify_color", UI_ITEM_NONE, nullptr, ICON_NONE);
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if (modify_color == GP_MODIFY_COLOR_HARDNESS) {
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uiItemR(layout, ptr, "hardness", UI_ITEM_NONE, nullptr, ICON_NONE);
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}
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else {
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const bool is_normalized = RNA_boolean_get(ptr, "use_normalized_opacity");
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const bool is_weighted = RNA_boolean_get(ptr, "use_weight_factor");
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uiItemR(layout, ptr, "use_normalized_opacity", UI_ITEM_NONE, nullptr, ICON_NONE);
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const char *text = (is_normalized) ? IFACE_("Strength") : IFACE_("Opacity Factor");
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uiLayout *row = uiLayoutRow(layout, true);
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uiLayoutSetActive(row, !is_weighted || is_normalized);
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uiItemR(row, ptr, "factor", UI_ITEM_NONE, text, ICON_NONE);
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if (!is_normalized) {
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uiLayout *sub = uiLayoutRow(row, true);
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uiLayoutSetActive(sub, true);
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uiItemR(row, ptr, "use_weight_factor", UI_ITEM_NONE, "", ICON_MOD_VERTEX_WEIGHT);
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}
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}
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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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PointerRNA *ptr = gpencil_modifier_panel_get_property_pointers(panel, nullptr);
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int modify_color = RNA_enum_get(ptr, "modify_color");
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bool show_vertex = (modify_color != GP_MODIFY_COLOR_HARDNESS);
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gpencil_modifier_masking_panel_draw(panel, true, show_vertex);
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}
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static void curve_header_draw(const bContext *C, Panel *panel)
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{
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uiLayout *layout = panel->layout;
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PointerRNA *ptr = gpencil_modifier_panel_get_property_pointers(panel, nullptr);
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int modify_color = RNA_enum_get(ptr, "modify_color");
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uiLayoutSetActive(layout, modify_color != GP_MODIFY_COLOR_HARDNESS);
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gpencil_modifier_curve_header_draw(C, panel);
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}
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static void curve_panel_draw(const bContext *C, Panel *panel)
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{
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uiLayout *layout = panel->layout;
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PointerRNA *ptr = gpencil_modifier_panel_get_property_pointers(panel, nullptr);
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int modify_color = RNA_enum_get(ptr, "modify_color");
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uiLayoutSetActive(layout, modify_color != GP_MODIFY_COLOR_HARDNESS);
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gpencil_modifier_curve_panel_draw(C, panel);
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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_Opacity, panel_draw);
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PanelType *mask_panel_type = gpencil_modifier_subpanel_register(
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region_type, "mask", "Influence", nullptr, mask_panel_draw, panel_type);
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gpencil_modifier_subpanel_register(
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region_type, "curve", "", curve_header_draw, curve_panel_draw, mask_panel_type);
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}
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GpencilModifierTypeInfo modifierType_Gpencil_Opacity = {
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/*name*/ N_("Opacity"),
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/*struct_name*/ "OpacityGpencilModifierData",
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/*struct_size*/ sizeof(OpacityGpencilModifierData),
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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*/ nullptr,
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/*update_depsgraph*/ nullptr,
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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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