363 lines
12 KiB
C++
363 lines
12 KiB
C++
/* SPDX-FileCopyrightText: 2017 Blender Authors
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
|
|
/** \file
|
|
* \ingroup modifiers
|
|
*/
|
|
|
|
#include <cstdio>
|
|
|
|
#include "BLI_hash.h"
|
|
#include "BLI_listbase.h"
|
|
#include "BLI_math_vector.h"
|
|
#include "BLI_utildefines.h"
|
|
|
|
#include "BLT_translation.hh"
|
|
|
|
#include "MEM_guardedalloc.h"
|
|
|
|
#include "DNA_defaults.h"
|
|
#include "DNA_gpencil_legacy_types.h"
|
|
#include "DNA_gpencil_modifier_types.h"
|
|
#include "DNA_meshdata_types.h"
|
|
#include "DNA_object_types.h"
|
|
#include "DNA_screen_types.h"
|
|
|
|
#include "BKE_colortools.hh"
|
|
#include "BKE_deform.hh"
|
|
#include "BKE_gpencil_geom_legacy.h"
|
|
#include "BKE_gpencil_legacy.h"
|
|
#include "BKE_gpencil_modifier_legacy.h"
|
|
#include "BKE_lib_query.hh"
|
|
#include "BKE_modifier.hh"
|
|
|
|
#include "DEG_depsgraph.hh"
|
|
#include "DEG_depsgraph_query.hh"
|
|
|
|
#include "UI_interface.hh"
|
|
#include "UI_resources.hh"
|
|
|
|
#include "RNA_access.hh"
|
|
|
|
#include "MOD_gpencil_legacy_ui_common.h"
|
|
#include "MOD_gpencil_legacy_util.h"
|
|
|
|
static void init_data(GpencilModifierData *md)
|
|
{
|
|
NoiseGpencilModifierData *gpmd = (NoiseGpencilModifierData *)md;
|
|
|
|
BLI_assert(MEMCMP_STRUCT_AFTER_IS_ZERO(gpmd, modifier));
|
|
|
|
MEMCPY_STRUCT_AFTER(gpmd, DNA_struct_default_get(NoiseGpencilModifierData), modifier);
|
|
|
|
gpmd->curve_intensity = BKE_curvemapping_add(1, 0.0f, 0.0f, 1.0f, 1.0f);
|
|
CurveMapping *curve = gpmd->curve_intensity;
|
|
BKE_curvemap_reset(curve->cm, &curve->clipr, CURVE_PRESET_BELL, CURVEMAP_SLOPE_POSITIVE);
|
|
BKE_curvemapping_init(curve);
|
|
}
|
|
|
|
static void free_data(GpencilModifierData *md)
|
|
{
|
|
NoiseGpencilModifierData *gpmd = (NoiseGpencilModifierData *)md;
|
|
|
|
if (gpmd->curve_intensity) {
|
|
BKE_curvemapping_free(gpmd->curve_intensity);
|
|
}
|
|
}
|
|
|
|
static void copy_data(const GpencilModifierData *md, GpencilModifierData *target)
|
|
{
|
|
NoiseGpencilModifierData *gmd = (NoiseGpencilModifierData *)md;
|
|
NoiseGpencilModifierData *tgmd = (NoiseGpencilModifierData *)target;
|
|
|
|
if (tgmd->curve_intensity != nullptr) {
|
|
BKE_curvemapping_free(tgmd->curve_intensity);
|
|
tgmd->curve_intensity = nullptr;
|
|
}
|
|
|
|
BKE_gpencil_modifier_copydata_generic(md, target);
|
|
|
|
tgmd->curve_intensity = BKE_curvemapping_copy(gmd->curve_intensity);
|
|
}
|
|
|
|
static bool depends_on_time(GpencilModifierData *md)
|
|
{
|
|
NoiseGpencilModifierData *mmd = (NoiseGpencilModifierData *)md;
|
|
return (mmd->flag & GP_NOISE_USE_RANDOM) != 0;
|
|
}
|
|
|
|
static float *noise_table(int len, int offset, int seed)
|
|
{
|
|
float *table = static_cast<float *>(MEM_callocN(sizeof(float) * len, __func__));
|
|
for (int i = 0; i < len; i++) {
|
|
table[i] = BLI_hash_int_01(BLI_hash_int_2d(seed, i + offset + 1));
|
|
}
|
|
return table;
|
|
}
|
|
|
|
BLI_INLINE float table_sample(float *table, float x)
|
|
{
|
|
return interpf(table[int(ceilf(x))], table[int(floor(x))], fractf(x));
|
|
}
|
|
|
|
/**
|
|
* Apply noise effect based on stroke direction.
|
|
*/
|
|
static void deform_stroke(GpencilModifierData *md,
|
|
Depsgraph *depsgraph,
|
|
Object *ob,
|
|
bGPDlayer *gpl,
|
|
bGPDframe *gpf,
|
|
bGPDstroke *gps)
|
|
{
|
|
NoiseGpencilModifierData *mmd = (NoiseGpencilModifierData *)md;
|
|
MDeformVert *dvert = nullptr;
|
|
/* Noise value in range [-1..1] */
|
|
float normal[3];
|
|
float vec1[3], vec2[3];
|
|
const int def_nr = BKE_object_defgroup_name_index(ob, mmd->vgname);
|
|
const bool invert_group = (mmd->flag & GP_NOISE_INVERT_VGROUP) != 0;
|
|
const bool use_curve = (mmd->flag & GP_NOISE_CUSTOM_CURVE) != 0 && mmd->curve_intensity;
|
|
const int cfra = int(DEG_get_ctime(depsgraph));
|
|
const bool is_keyframe = (mmd->noise_mode == GP_NOISE_RANDOM_KEYFRAME);
|
|
|
|
if (!is_stroke_affected_by_modifier(ob,
|
|
mmd->layername,
|
|
mmd->material,
|
|
mmd->pass_index,
|
|
mmd->layer_pass,
|
|
1,
|
|
gpl,
|
|
gps,
|
|
mmd->flag & GP_NOISE_INVERT_LAYER,
|
|
mmd->flag & GP_NOISE_INVERT_PASS,
|
|
mmd->flag & GP_NOISE_INVERT_LAYERPASS,
|
|
mmd->flag & GP_NOISE_INVERT_MATERIAL))
|
|
{
|
|
return;
|
|
}
|
|
|
|
int seed = mmd->seed;
|
|
/* FIXME(fclem): This is really slow. We should get the stroke index in another way. */
|
|
int stroke_seed = BLI_findindex(&gpf->strokes, gps);
|
|
seed += stroke_seed;
|
|
|
|
/* Make sure different modifiers get different seeds. */
|
|
seed += BLI_hash_string(ob->id.name + 2);
|
|
seed += BLI_hash_string(md->name);
|
|
|
|
if (mmd->flag & GP_NOISE_USE_RANDOM) {
|
|
if (!is_keyframe) {
|
|
seed += cfra / mmd->step;
|
|
}
|
|
else {
|
|
/* If change every keyframe, use the last keyframe. */
|
|
seed += gpf->framenum;
|
|
}
|
|
}
|
|
|
|
/* Sanitize as it can create out of bound reads. */
|
|
float noise_scale = clamp_f(mmd->noise_scale, 0.0f, 1.0f);
|
|
|
|
int len = ceilf(gps->totpoints * noise_scale) + 2;
|
|
float *noise_table_position = (mmd->factor > 0.0f) ?
|
|
noise_table(len, int(floor(mmd->noise_offset)), seed + 2) :
|
|
nullptr;
|
|
float *noise_table_strength = (mmd->factor_strength > 0.0f) ?
|
|
noise_table(len, int(floor(mmd->noise_offset)), seed + 3) :
|
|
nullptr;
|
|
float *noise_table_thickness = (mmd->factor_thickness > 0.0f) ?
|
|
noise_table(len, int(floor(mmd->noise_offset)), seed) :
|
|
nullptr;
|
|
float *noise_table_uvs = (mmd->factor_uvs > 0.0f) ?
|
|
noise_table(len, int(floor(mmd->noise_offset)), seed + 4) :
|
|
nullptr;
|
|
|
|
/* Calculate stroke normal. */
|
|
if (gps->totpoints > 2) {
|
|
BKE_gpencil_stroke_normal(gps, normal);
|
|
if (is_zero_v3(normal)) {
|
|
copy_v3_fl(normal, 1.0f);
|
|
}
|
|
}
|
|
else {
|
|
copy_v3_fl(normal, 1.0f);
|
|
}
|
|
|
|
/* move points */
|
|
for (int i = 0; i < gps->totpoints; i++) {
|
|
bGPDspoint *pt = &gps->points[i];
|
|
/* verify vertex group */
|
|
dvert = gps->dvert != nullptr ? &gps->dvert[i] : nullptr;
|
|
float weight = get_modifier_point_weight(dvert, invert_group, def_nr);
|
|
if (weight < 0.0f) {
|
|
continue;
|
|
}
|
|
|
|
if (use_curve) {
|
|
float value = float(i) / (gps->totpoints - 1);
|
|
weight *= BKE_curvemapping_evaluateF(mmd->curve_intensity, 0, value);
|
|
}
|
|
|
|
if (mmd->factor > 0.0f) {
|
|
/* Offset point randomly around the bi-normal vector. */
|
|
if (gps->totpoints == 1) {
|
|
copy_v3_fl3(vec1, 1.0f, 0.0f, 0.0f);
|
|
}
|
|
else if (i != gps->totpoints - 1) {
|
|
/* Initial vector (p1 -> p0). */
|
|
sub_v3_v3v3(vec1, &gps->points[i].x, &gps->points[i + 1].x);
|
|
/* if vec2 is zero, set to something */
|
|
if (len_squared_v3(vec1) < 1e-8f) {
|
|
copy_v3_fl3(vec1, 1.0f, 0.0f, 0.0f);
|
|
}
|
|
}
|
|
else {
|
|
/* Last point reuse the penultimate normal (still stored in vec1)
|
|
* because the previous point is already modified. */
|
|
}
|
|
/* Vector orthogonal to normal. */
|
|
cross_v3_v3v3(vec2, vec1, normal);
|
|
normalize_v3(vec2);
|
|
|
|
float noise = table_sample(noise_table_position,
|
|
i * noise_scale + fractf(mmd->noise_offset));
|
|
madd_v3_v3fl(&pt->x, vec2, (noise * 2.0f - 1.0f) * weight * mmd->factor * 0.1f);
|
|
}
|
|
|
|
if (mmd->factor_thickness > 0.0f) {
|
|
float noise = table_sample(noise_table_thickness,
|
|
i * noise_scale + fractf(mmd->noise_offset));
|
|
pt->pressure *= max_ff(1.0f + (noise * 2.0f - 1.0f) * weight * mmd->factor_thickness, 0.0f);
|
|
CLAMP_MIN(pt->pressure, GPENCIL_STRENGTH_MIN);
|
|
}
|
|
|
|
if (mmd->factor_strength > 0.0f) {
|
|
float noise = table_sample(noise_table_strength,
|
|
i * noise_scale + fractf(mmd->noise_offset));
|
|
pt->strength *= max_ff(1.0f - noise * weight * mmd->factor_strength, 0.0f);
|
|
CLAMP(pt->strength, GPENCIL_STRENGTH_MIN, 1.0f);
|
|
}
|
|
|
|
if (mmd->factor_uvs > 0.0f) {
|
|
float noise = table_sample(noise_table_uvs, i * noise_scale + fractf(mmd->noise_offset));
|
|
pt->uv_rot += (noise * 2.0f - 1.0f) * weight * mmd->factor_uvs * M_PI_2;
|
|
CLAMP(pt->uv_rot, -M_PI_2, M_PI_2);
|
|
}
|
|
}
|
|
|
|
MEM_SAFE_FREE(noise_table_position);
|
|
MEM_SAFE_FREE(noise_table_strength);
|
|
MEM_SAFE_FREE(noise_table_thickness);
|
|
MEM_SAFE_FREE(noise_table_uvs);
|
|
}
|
|
|
|
static void bake_modifier(Main * /*bmain*/,
|
|
Depsgraph *depsgraph,
|
|
GpencilModifierData *md,
|
|
Object *ob)
|
|
{
|
|
generic_bake_deform_stroke(depsgraph, md, ob, false, deform_stroke);
|
|
}
|
|
|
|
static void foreach_ID_link(GpencilModifierData *md, Object *ob, IDWalkFunc walk, void *user_data)
|
|
{
|
|
NoiseGpencilModifierData *mmd = (NoiseGpencilModifierData *)md;
|
|
|
|
walk(user_data, ob, (ID **)&mmd->material, IDWALK_CB_USER);
|
|
}
|
|
|
|
static void panel_draw(const bContext * /*C*/, Panel *panel)
|
|
{
|
|
uiLayout *col;
|
|
uiLayout *layout = panel->layout;
|
|
|
|
PointerRNA *ptr = gpencil_modifier_panel_get_property_pointers(panel, nullptr);
|
|
|
|
uiLayoutSetPropSep(layout, true);
|
|
|
|
col = uiLayoutColumn(layout, false);
|
|
uiItemR(col, ptr, "factor", UI_ITEM_NONE, IFACE_("Position"), ICON_NONE);
|
|
uiItemR(col, ptr, "factor_strength", UI_ITEM_NONE, IFACE_("Strength"), ICON_NONE);
|
|
uiItemR(col, ptr, "factor_thickness", UI_ITEM_NONE, IFACE_("Thickness"), ICON_NONE);
|
|
uiItemR(col, ptr, "factor_uvs", UI_ITEM_NONE, IFACE_("UV"), ICON_NONE);
|
|
uiItemR(col, ptr, "noise_scale", UI_ITEM_NONE, nullptr, ICON_NONE);
|
|
uiItemR(col, ptr, "noise_offset", UI_ITEM_NONE, nullptr, ICON_NONE);
|
|
uiItemR(col, ptr, "seed", UI_ITEM_NONE, nullptr, ICON_NONE);
|
|
|
|
gpencil_modifier_panel_end(layout, ptr);
|
|
}
|
|
|
|
static void random_header_draw(const bContext * /*C*/, Panel *panel)
|
|
{
|
|
uiLayout *layout = panel->layout;
|
|
|
|
PointerRNA *ptr = gpencil_modifier_panel_get_property_pointers(panel, nullptr);
|
|
|
|
uiItemR(layout, ptr, "use_random", UI_ITEM_NONE, IFACE_("Randomize"), ICON_NONE);
|
|
}
|
|
|
|
static void random_panel_draw(const bContext * /*C*/, Panel *panel)
|
|
{
|
|
uiLayout *layout = panel->layout;
|
|
|
|
PointerRNA *ptr = gpencil_modifier_panel_get_property_pointers(panel, nullptr);
|
|
|
|
uiLayoutSetPropSep(layout, true);
|
|
|
|
uiLayoutSetActive(layout, RNA_boolean_get(ptr, "use_random"));
|
|
|
|
uiItemR(layout, ptr, "random_mode", UI_ITEM_NONE, nullptr, ICON_NONE);
|
|
|
|
const int mode = RNA_enum_get(ptr, "random_mode");
|
|
if (mode != GP_NOISE_RANDOM_KEYFRAME) {
|
|
uiItemR(layout, ptr, "step", UI_ITEM_NONE, nullptr, ICON_NONE);
|
|
}
|
|
}
|
|
|
|
static void mask_panel_draw(const bContext * /*C*/, Panel *panel)
|
|
{
|
|
gpencil_modifier_masking_panel_draw(panel, true, true);
|
|
}
|
|
|
|
static void panel_register(ARegionType *region_type)
|
|
{
|
|
PanelType *panel_type = gpencil_modifier_panel_register(
|
|
region_type, eGpencilModifierType_Noise, panel_draw);
|
|
gpencil_modifier_subpanel_register(
|
|
region_type, "randomize", "", random_header_draw, random_panel_draw, panel_type);
|
|
PanelType *mask_panel_type = gpencil_modifier_subpanel_register(
|
|
region_type, "mask", "Influence", nullptr, mask_panel_draw, panel_type);
|
|
gpencil_modifier_subpanel_register(region_type,
|
|
"curve",
|
|
"",
|
|
gpencil_modifier_curve_header_draw,
|
|
gpencil_modifier_curve_panel_draw,
|
|
mask_panel_type);
|
|
}
|
|
|
|
GpencilModifierTypeInfo modifierType_Gpencil_Noise = {
|
|
/*name*/ N_("Noise"),
|
|
/*struct_name*/ "NoiseGpencilModifierData",
|
|
/*struct_size*/ sizeof(NoiseGpencilModifierData),
|
|
/*type*/ eGpencilModifierTypeType_Gpencil,
|
|
/*flags*/ eGpencilModifierTypeFlag_SupportsEditmode,
|
|
|
|
/*copy_data*/ copy_data,
|
|
|
|
/*deform_stroke*/ deform_stroke,
|
|
/*generate_strokes*/ nullptr,
|
|
/*bake_modifier*/ bake_modifier,
|
|
/*remap_time*/ nullptr,
|
|
|
|
/*init_data*/ init_data,
|
|
/*free_data*/ free_data,
|
|
/*is_disabled*/ nullptr,
|
|
/*update_depsgraph*/ nullptr,
|
|
/*depends_on_time*/ depends_on_time,
|
|
/*foreach_ID_link*/ foreach_ID_link,
|
|
/*foreach_tex_link*/ nullptr,
|
|
/*panel_register*/ panel_register,
|
|
};
|