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test/source/blender/modifiers/intern/MOD_weighted_normal.cc
Hans Goudey 2a4323c2f5 Mesh: Move edges to a generic attribute 
Implements #95966, as the final step of #95965.

This commit changes the storage of mesh edge vertex indices from the
`MEdge` type to the generic `int2` attribute type. This follows the
general design for geometry and the attribute system, where the data
storage type and the usage semantics are separated.

The main benefit of the change is reduced memory usage-- the
requirements of storing mesh edges is reduced by 1/3. For example,
this saves 8MB on a 1 million vertex grid. This also gives performance
benefits to any memory-bound mesh processing algorithm that uses edges.

Another benefit is that all of the edge's vertex indices are
contiguous. In a few cases, it's helpful to process all of them as
`Span<int>` rather than `Span<int2>`. Similarly, the type is more
likely to match a generic format used by a library, or code that
shouldn't know about specific Blender `Mesh` types.

Various Notes:
- The `.edge_verts` name is used to reflect a mapping between domains,
  similar to `.corner_verts`, etc. The period means that it the data
  shouldn't change arbitrarily by the user or procedural operations.
- `edge[0]` is now used instead of `edge.v1`
- Signed integers are used instead of unsigned to reduce the mixing
  of signed-ness, which can be error prone.
- All of the previously used core mesh data types (`MVert`, `MEdge`,
  `MLoop`, `MPoly` are now deprecated. Only generic types are used).
- The `vec2i` DNA type is used in the few C files where necessary.

Pull Request: https://projects.blender.org/blender/blender/pulls/106638
2023-04-17 13:47:41 +02:00

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/* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup modifiers
*/
#include "MEM_guardedalloc.h"
#include "BLI_bitmap.h"
#include "BLI_linklist.h"
#include "BLI_math_vector.h"
#include "BLT_translation.h"
#include "DNA_defaults.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_object_types.h"
#include "DNA_scene_types.h"
#include "DNA_screen_types.h"
#include "BKE_attribute.hh"
#include "BKE_context.h"
#include "BKE_deform.h"
#include "BKE_lib_id.h"
#include "BKE_mesh.hh"
#include "BKE_mesh_mapping.h"
#include "BKE_screen.h"
#include "UI_interface.h"
#include "UI_resources.h"
#include "RNA_access.h"
#include "RNA_prototypes.h"
#include "MOD_modifiertypes.h"
#include "MOD_ui_common.h"
#include "MOD_util.h"
#include "bmesh.h"
#define CLNORS_VALID_VEC_LEN (1e-6f)
struct ModePair {
float val; /* Contains mode based value (face area / corner angle). */
int index; /* Index value per poly or per loop. */
};
/* Sorting function used in modifier, sorts in decreasing order. */
static int modepair_cmp_by_val_inverse(const void *p1, const void *p2)
{
ModePair *r1 = (ModePair *)p1;
ModePair *r2 = (ModePair *)p2;
return (r1->val < r2->val) ? 1 : ((r1->val > r2->val) ? -1 : 0);
}
/* There will be one of those per vertex
* (simple case, computing one normal per vertex), or per smooth fan. */
struct WeightedNormalDataAggregateItem {
float normal[3];
int loops_num; /* Count number of loops using this item so far. */
float curr_val; /* Current max val for this item. */
int curr_strength; /* Current max strength encountered for this item. */
};
#define NUM_CACHED_INVERSE_POWERS_OF_WEIGHT 128
struct WeightedNormalData {
int verts_num;
blender::Span<blender::float3> vert_positions;
blender::Span<blender::float3> vert_normals;
blender::Span<blender::int2> edges;
blender::MutableSpan<bool> sharp_edges;
blender::Span<int> corner_verts;
blender::Span<int> corner_edges;
blender::Span<int> loop_to_poly;
short (*clnors)[2];
bool has_clnors; /* True if clnors already existed, false if we had to create them. */
float split_angle;
blender::OffsetIndices<int> polys;
blender::Span<blender::float3> poly_normals;
const bool *sharp_faces;
const int *poly_strength;
const MDeformVert *dvert;
int defgrp_index;
bool use_invert_vgroup;
float weight;
short mode;
/* Lower-level, internal processing data. */
float cached_inverse_powers_of_weight[NUM_CACHED_INVERSE_POWERS_OF_WEIGHT];
WeightedNormalDataAggregateItem *items_data;
ModePair *mode_pair;
};
/**
* Check strength of given poly compared to those found so far for that given item
* (vertex or smooth fan), and reset matching item_data in case we get a stronger new strength.
*/
static bool check_item_poly_strength(WeightedNormalData *wn_data,
WeightedNormalDataAggregateItem *item_data,
const int poly_index)
{
BLI_assert(wn_data->poly_strength != nullptr);
const int mp_strength = wn_data->poly_strength[poly_index];
if (mp_strength > item_data->curr_strength) {
item_data->curr_strength = mp_strength;
item_data->curr_val = 0.0f;
item_data->loops_num = 0;
zero_v3(item_data->normal);
}
return mp_strength == item_data->curr_strength;
}
static void aggregate_item_normal(WeightedNormalModifierData *wnmd,
WeightedNormalData *wn_data,
WeightedNormalDataAggregateItem *item_data,
const int mv_index,
const int poly_index,
const float curr_val,
const bool use_face_influence)
{
const blender::Span<blender::float3> poly_normals = wn_data->poly_normals;
const MDeformVert *dvert = wn_data->dvert;
const int defgrp_index = wn_data->defgrp_index;
const bool use_invert_vgroup = wn_data->use_invert_vgroup;
const float weight = wn_data->weight;
float *cached_inverse_powers_of_weight = wn_data->cached_inverse_powers_of_weight;
const bool has_vgroup = dvert != nullptr;
const bool vert_of_group = has_vgroup &&
BKE_defvert_find_index(&dvert[mv_index], defgrp_index) != nullptr;
if (has_vgroup &&
((vert_of_group && use_invert_vgroup) || (!vert_of_group && !use_invert_vgroup))) {
return;
}
if (use_face_influence && !check_item_poly_strength(wn_data, item_data, poly_index)) {
return;
}
/* If item's curr_val is 0 init it to present value. */
if (item_data->curr_val == 0.0f) {
item_data->curr_val = curr_val;
}
if (!compare_ff(item_data->curr_val, curr_val, wnmd->thresh)) {
/* item's curr_val and present value differ more than threshold, update. */
item_data->loops_num++;
item_data->curr_val = curr_val;
}
/* Exponentially divided weight for each normal
* (since a few values will be used by most cases, we cache those). */
const int loops_num = item_data->loops_num;
if (loops_num < NUM_CACHED_INVERSE_POWERS_OF_WEIGHT &&
cached_inverse_powers_of_weight[loops_num] == 0.0f) {
cached_inverse_powers_of_weight[loops_num] = 1.0f / powf(weight, loops_num);
}
const float inverted_n_weight = loops_num < NUM_CACHED_INVERSE_POWERS_OF_WEIGHT ?
cached_inverse_powers_of_weight[loops_num] :
1.0f / powf(weight, loops_num);
madd_v3_v3fl(item_data->normal, poly_normals[poly_index], curr_val * inverted_n_weight);
}
static void apply_weights_vertex_normal(WeightedNormalModifierData *wnmd,
WeightedNormalData *wn_data)
{
using namespace blender;
const int verts_num = wn_data->verts_num;
const blender::Span<blender::float3> positions = wn_data->vert_positions;
const blender::Span<int2> edges = wn_data->edges;
const blender::OffsetIndices polys = wn_data->polys;
const blender::Span<int> corner_verts = wn_data->corner_verts;
const blender::Span<int> corner_edges = wn_data->corner_edges;
short(*clnors)[2] = wn_data->clnors;
const blender::Span<int> loop_to_poly = wn_data->loop_to_poly;
const blender::Span<blender::float3> poly_normals = wn_data->poly_normals;
const int *poly_strength = wn_data->poly_strength;
const MDeformVert *dvert = wn_data->dvert;
const short mode = wn_data->mode;
ModePair *mode_pair = wn_data->mode_pair;
const bool has_clnors = wn_data->has_clnors;
const float split_angle = wn_data->split_angle;
MLoopNorSpaceArray lnors_spacearr = {nullptr};
const bool keep_sharp = (wnmd->flag & MOD_WEIGHTEDNORMAL_KEEP_SHARP) != 0;
const bool use_face_influence = (wnmd->flag & MOD_WEIGHTEDNORMAL_FACE_INFLUENCE) != 0 &&
poly_strength != nullptr;
const bool has_vgroup = dvert != nullptr;
blender::Array<blender::float3> loop_normals;
WeightedNormalDataAggregateItem *items_data = nullptr;
int items_num = 0;
if (keep_sharp) {
BLI_bitmap *done_loops = BLI_BITMAP_NEW(corner_verts.size(), __func__);
/* This will give us loop normal spaces,
* we do not actually care about computed loop_normals for now... */
loop_normals.reinitialize(corner_verts.size());
bke::mesh::normals_calc_loop(positions,
edges,
polys,
corner_verts,
corner_edges,
loop_to_poly,
wn_data->vert_normals,
wn_data->poly_normals,
wn_data->sharp_edges.data(),
wn_data->sharp_faces,
true,
split_angle,
has_clnors ? clnors : nullptr,
&lnors_spacearr,
loop_normals);
items_num = lnors_spacearr.spaces_num;
items_data = static_cast<WeightedNormalDataAggregateItem *>(
MEM_calloc_arrayN(size_t(items_num), sizeof(*items_data), __func__));
/* In this first loop, we assign each WeightedNormalDataAggregateItem
* to its smooth fan of loops (aka lnor space). */
int item_index = 0;
for (const int i : polys.index_range()) {
for (const int ml_index : polys[i]) {
if (BLI_BITMAP_TEST(done_loops, ml_index)) {
/* Smooth fan of this loop has already been processed, skip it. */
continue;
}
WeightedNormalDataAggregateItem *itdt = &items_data[item_index];
itdt->curr_strength = FACE_STRENGTH_WEAK;
MLoopNorSpace *lnor_space = lnors_spacearr.lspacearr[ml_index];
lnor_space->user_data = itdt;
if (!(lnor_space->flags & MLNOR_SPACE_IS_SINGLE)) {
for (LinkNode *lnode = lnor_space->loops; lnode; lnode = lnode->next) {
const int ml_fan_index = POINTER_AS_INT(lnode->link);
BLI_BITMAP_ENABLE(done_loops, ml_fan_index);
}
}
else {
BLI_BITMAP_ENABLE(done_loops, ml_index);
}
item_index++;
}
}
MEM_freeN(done_loops);
}
else {
items_num = verts_num;
items_data = static_cast<WeightedNormalDataAggregateItem *>(
MEM_calloc_arrayN(size_t(items_num), sizeof(*items_data), __func__));
if (use_face_influence) {
for (int item_index = 0; item_index < items_num; item_index++) {
items_data[item_index].curr_strength = FACE_STRENGTH_WEAK;
}
}
}
wn_data->items_data = items_data;
switch (mode) {
case MOD_WEIGHTEDNORMAL_MODE_FACE:
for (const int i : polys.index_range()) {
const int poly_index = mode_pair[i].index;
const float mp_val = mode_pair[i].val;
for (const int ml_index : polys[poly_index]) {
const int mv_index = corner_verts[ml_index];
WeightedNormalDataAggregateItem *item_data =
keep_sharp ? static_cast<WeightedNormalDataAggregateItem *>(
lnors_spacearr.lspacearr[ml_index]->user_data) :
&items_data[mv_index];
aggregate_item_normal(
wnmd, wn_data, item_data, mv_index, poly_index, mp_val, use_face_influence);
}
}
break;
case MOD_WEIGHTEDNORMAL_MODE_ANGLE:
case MOD_WEIGHTEDNORMAL_MODE_FACE_ANGLE:
for (int i = 0; i < corner_verts.size(); i++) {
const int ml_index = mode_pair[i].index;
const float ml_val = mode_pair[i].val;
const int poly_index = loop_to_poly[ml_index];
const int mv_index = corner_verts[ml_index];
WeightedNormalDataAggregateItem *item_data =
keep_sharp ? static_cast<WeightedNormalDataAggregateItem *>(
lnors_spacearr.lspacearr[ml_index]->user_data) :
&items_data[mv_index];
aggregate_item_normal(
wnmd, wn_data, item_data, mv_index, poly_index, ml_val, use_face_influence);
}
break;
default:
BLI_assert_unreachable();
}
/* Validate computed weighted normals. */
for (int item_index = 0; item_index < items_num; item_index++) {
if (normalize_v3(items_data[item_index].normal) < CLNORS_VALID_VEC_LEN) {
zero_v3(items_data[item_index].normal);
}
}
if (keep_sharp) {
/* Set loop normals for normal computed for each lnor space (smooth fan).
* Note that loop_normals is already populated with clnors
* (before this modifier is applied, at start of this function),
* so no need to recompute them here. */
for (int ml_index = 0; ml_index < corner_verts.size(); ml_index++) {
WeightedNormalDataAggregateItem *item_data = static_cast<WeightedNormalDataAggregateItem *>(
lnors_spacearr.lspacearr[ml_index]->user_data);
if (!is_zero_v3(item_data->normal)) {
copy_v3_v3(loop_normals[ml_index], item_data->normal);
}
}
blender::bke::mesh::normals_loop_custom_set(positions,
edges,
polys,
corner_verts,
corner_edges,
wn_data->vert_normals,
poly_normals,
wn_data->sharp_faces,
wn_data->sharp_edges,
loop_normals,
clnors);
}
else {
/* TODO: Ideally, we could add an option to `BKE_mesh_normals_loop_custom_[from_verts_]set()`
* to keep current clnors instead of resetting them to default auto-computed ones,
* when given new custom normal is zero-vec.
* But this is not exactly trivial change, better to keep this optimization for later...
*/
if (!has_vgroup) {
/* NOTE: in theory, we could avoid this extra allocation & copying...
* But think we can live with it for now,
* and it makes code simpler & cleaner. */
blender::Array<blender::float3> vert_normals(verts_num, float3(0));
for (int ml_index = 0; ml_index < corner_verts.size(); ml_index++) {
const int mv_index = corner_verts[ml_index];
copy_v3_v3(vert_normals[mv_index], items_data[mv_index].normal);
}
blender::bke::mesh::normals_loop_custom_set_from_verts(positions,
edges,
polys,
corner_verts,
corner_edges,
wn_data->vert_normals,
poly_normals,
wn_data->sharp_faces,
wn_data->sharp_edges,
vert_normals,
clnors);
}
else {
loop_normals.reinitialize(corner_verts.size());
blender::bke::mesh::normals_calc_loop(positions,
edges,
polys,
corner_verts,
corner_edges,
loop_to_poly,
wn_data->vert_normals,
poly_normals,
wn_data->sharp_edges.data(),
wn_data->sharp_faces,
true,
split_angle,
has_clnors ? clnors : nullptr,
nullptr,
loop_normals);
for (int ml_index = 0; ml_index < corner_verts.size(); ml_index++) {
const int item_index = corner_verts[ml_index];
if (!is_zero_v3(items_data[item_index].normal)) {
copy_v3_v3(loop_normals[ml_index], items_data[item_index].normal);
}
}
blender::bke::mesh::normals_loop_custom_set(positions,
edges,
polys,
corner_verts,
corner_edges,
wn_data->vert_normals,
poly_normals,
wn_data->sharp_faces,
wn_data->sharp_edges,
loop_normals,
clnors);
}
}
if (keep_sharp) {
BKE_lnor_spacearr_free(&lnors_spacearr);
}
}
static void wn_face_area(WeightedNormalModifierData *wnmd, WeightedNormalData *wn_data)
{
const blender::Span<blender::float3> positions = wn_data->vert_positions;
const blender::OffsetIndices polys = wn_data->polys;
const blender::Span<int> corner_verts = wn_data->corner_verts;
ModePair *face_area = static_cast<ModePair *>(
MEM_malloc_arrayN(polys.size(), sizeof(*face_area), __func__));
ModePair *f_area = face_area;
for (const int i : polys.index_range()) {
f_area[i].val = blender::bke::mesh::poly_area_calc(positions, corner_verts.slice(polys[i]));
f_area[i].index = i;
}
qsort(face_area, polys.size(), sizeof(*face_area), modepair_cmp_by_val_inverse);
wn_data->mode_pair = face_area;
apply_weights_vertex_normal(wnmd, wn_data);
}
static void wn_corner_angle(WeightedNormalModifierData *wnmd, WeightedNormalData *wn_data)
{
const blender::Span<blender::float3> positions = wn_data->vert_positions;
const blender::OffsetIndices polys = wn_data->polys;
const blender::Span<int> corner_verts = wn_data->corner_verts;
ModePair *corner_angle = static_cast<ModePair *>(
MEM_malloc_arrayN(corner_verts.size(), sizeof(*corner_angle), __func__));
for (const int i : polys.index_range()) {
const blender::IndexRange poly = polys[i];
float *index_angle = static_cast<float *>(
MEM_malloc_arrayN(poly.size(), sizeof(*index_angle), __func__));
blender::bke::mesh::poly_angles_calc(
positions, corner_verts.slice(poly), {index_angle, poly.size()});
ModePair *c_angl = &corner_angle[poly.start()];
float *angl = index_angle;
for (int ml_index = poly.start(); ml_index < poly.start() + poly.size();
ml_index++, c_angl++, angl++) {
c_angl->val = float(M_PI) - *angl;
c_angl->index = ml_index;
}
MEM_freeN(index_angle);
}
qsort(corner_angle, corner_verts.size(), sizeof(*corner_angle), modepair_cmp_by_val_inverse);
wn_data->mode_pair = corner_angle;
apply_weights_vertex_normal(wnmd, wn_data);
}
static void wn_face_with_angle(WeightedNormalModifierData *wnmd, WeightedNormalData *wn_data)
{
const blender::Span<blender::float3> positions = wn_data->vert_positions;
const blender::OffsetIndices polys = wn_data->polys;
const blender::Span<int> corner_verts = wn_data->corner_verts;
ModePair *combined = static_cast<ModePair *>(
MEM_malloc_arrayN(corner_verts.size(), sizeof(*combined), __func__));
for (const int i : polys.index_range()) {
const blender::IndexRange poly = polys[i];
const blender::Span<int> poly_verts = corner_verts.slice(poly);
const float face_area = blender::bke::mesh::poly_area_calc(positions, poly_verts);
float *index_angle = static_cast<float *>(
MEM_malloc_arrayN(size_t(poly.size()), sizeof(*index_angle), __func__));
blender::bke::mesh::poly_angles_calc(positions, poly_verts, {index_angle, poly.size()});
ModePair *cmbnd = &combined[poly.start()];
float *angl = index_angle;
for (int ml_index = poly.start(); ml_index < poly.start() + poly.size();
ml_index++, cmbnd++, angl++) {
/* In this case val is product of corner angle and face area. */
cmbnd->val = (float(M_PI) - *angl) * face_area;
cmbnd->index = ml_index;
}
MEM_freeN(index_angle);
}
qsort(combined, corner_verts.size(), sizeof(*combined), modepair_cmp_by_val_inverse);
wn_data->mode_pair = combined;
apply_weights_vertex_normal(wnmd, wn_data);
}
static Mesh *modifyMesh(ModifierData *md, const ModifierEvalContext *ctx, Mesh *mesh)
{
using namespace blender;
WeightedNormalModifierData *wnmd = (WeightedNormalModifierData *)md;
Object *ob = ctx->object;
/* XXX TODO(Rohan Rathi):
* Once we fully switch to Mesh evaluation of modifiers,
* we can expect to get that flag from the COW copy.
* But for now, it is lost in the DM intermediate step,
* so we need to directly check orig object's data. */
#if 0
if (!(mesh->flag & ME_AUTOSMOOTH))
#else
if (!(((Mesh *)ob->data)->flag & ME_AUTOSMOOTH))
#endif
{
BKE_modifier_set_error(
ctx->object, (ModifierData *)wnmd, "Enable 'Auto Smooth' in Object Data Properties");
return mesh;
}
Mesh *result;
result = (Mesh *)BKE_id_copy_ex(nullptr, &mesh->id, nullptr, LIB_ID_COPY_LOCALIZE);
const int verts_num = result->totvert;
const blender::Span<blender::float3> positions = mesh->vert_positions();
const blender::Span<int2> edges = mesh->edges();
const OffsetIndices polys = result->polys();
const blender::Span<int> corner_verts = mesh->corner_verts();
const blender::Span<int> corner_edges = mesh->corner_edges();
/* Right now:
* If weight = 50 then all faces are given equal weight.
* If weight > 50 then more weight given to faces with larger vals (face area / corner angle).
* If weight < 50 then more weight given to faces with lesser vals. However current calculation
* does not converge to min/max.
*/
float weight = float(wnmd->weight) / 50.0f;
if (wnmd->weight == 100) {
weight = float(SHRT_MAX);
}
else if (wnmd->weight == 1) {
weight = 1 / float(SHRT_MAX);
}
else if ((weight - 1) * 25 > 1) {
weight = (weight - 1) * 25;
}
const float split_angle = mesh->smoothresh;
short(*clnors)[2] = static_cast<short(*)[2]>(
CustomData_get_layer_for_write(&result->ldata, CD_CUSTOMLOOPNORMAL, mesh->totloop));
/* Keep info whether we had clnors,
* it helps when generating clnor spaces and default normals. */
const bool has_clnors = clnors != nullptr;
if (!clnors) {
clnors = static_cast<short(*)[2]>(CustomData_add_layer(
&result->ldata, CD_CUSTOMLOOPNORMAL, CD_SET_DEFAULT, corner_verts.size()));
}
const MDeformVert *dvert;
int defgrp_index;
MOD_get_vgroup(ctx->object, mesh, wnmd->defgrp_name, &dvert, &defgrp_index);
const Array<int> loop_to_poly_map = bke::mesh_topology::build_loop_to_poly_map(result->polys());
bke::MutableAttributeAccessor attributes = result->attributes_for_write();
bke::SpanAttributeWriter<bool> sharp_edges = attributes.lookup_or_add_for_write_span<bool>(
"sharp_edge", ATTR_DOMAIN_EDGE);
WeightedNormalData wn_data{};
wn_data.verts_num = verts_num;
wn_data.vert_positions = positions;
wn_data.vert_normals = result->vert_normals();
wn_data.edges = edges;
wn_data.sharp_edges = sharp_edges.span;
wn_data.corner_verts = corner_verts;
wn_data.corner_edges = corner_edges;
wn_data.loop_to_poly = loop_to_poly_map;
wn_data.clnors = clnors;
wn_data.has_clnors = has_clnors;
wn_data.split_angle = split_angle;
wn_data.polys = polys;
wn_data.poly_normals = mesh->poly_normals();
wn_data.sharp_faces = static_cast<const bool *>(
CustomData_get_layer_named(&mesh->pdata, CD_PROP_BOOL, "sharp_face"));
wn_data.poly_strength = static_cast<const int *>(CustomData_get_layer_named(
&result->pdata, CD_PROP_INT32, MOD_WEIGHTEDNORMALS_FACEWEIGHT_CDLAYER_ID));
wn_data.dvert = dvert;
wn_data.defgrp_index = defgrp_index;
wn_data.use_invert_vgroup = (wnmd->flag & MOD_WEIGHTEDNORMAL_INVERT_VGROUP) != 0;
wn_data.weight = weight;
wn_data.mode = wnmd->mode;
switch (wnmd->mode) {
case MOD_WEIGHTEDNORMAL_MODE_FACE:
wn_face_area(wnmd, &wn_data);
break;
case MOD_WEIGHTEDNORMAL_MODE_ANGLE:
wn_corner_angle(wnmd, &wn_data);
break;
case MOD_WEIGHTEDNORMAL_MODE_FACE_ANGLE:
wn_face_with_angle(wnmd, &wn_data);
break;
}
MEM_SAFE_FREE(wn_data.mode_pair);
MEM_SAFE_FREE(wn_data.items_data);
result->runtime->is_original_bmesh = false;
sharp_edges.finish();
return result;
}
static void initData(ModifierData *md)
{
WeightedNormalModifierData *wnmd = (WeightedNormalModifierData *)md;
BLI_assert(MEMCMP_STRUCT_AFTER_IS_ZERO(wnmd, modifier));
MEMCPY_STRUCT_AFTER(wnmd, DNA_struct_default_get(WeightedNormalModifierData), modifier);
}
static void requiredDataMask(ModifierData *md, CustomData_MeshMasks *r_cddata_masks)
{
WeightedNormalModifierData *wnmd = (WeightedNormalModifierData *)md;
r_cddata_masks->lmask = CD_MASK_CUSTOMLOOPNORMAL;
if (wnmd->defgrp_name[0] != '\0') {
r_cddata_masks->vmask |= CD_MASK_MDEFORMVERT;
}
if (wnmd->flag & MOD_WEIGHTEDNORMAL_FACE_INFLUENCE) {
r_cddata_masks->pmask |= CD_MASK_PROP_INT32;
}
}
static bool dependsOnNormals(ModifierData * /*md*/)
{
return true;
}
static void panel_draw(const bContext * /*C*/, Panel *panel)
{
uiLayout *col;
uiLayout *layout = panel->layout;
PointerRNA ob_ptr;
PointerRNA *ptr = modifier_panel_get_property_pointers(panel, &ob_ptr);
uiLayoutSetPropSep(layout, true);
uiItemR(layout, ptr, "mode", 0, nullptr, ICON_NONE);
uiItemR(layout, ptr, "weight", 0, IFACE_("Weight"), ICON_NONE);
uiItemR(layout, ptr, "thresh", 0, IFACE_("Threshold"), ICON_NONE);
col = uiLayoutColumn(layout, false);
uiItemR(col, ptr, "keep_sharp", 0, nullptr, ICON_NONE);
uiItemR(col, ptr, "use_face_influence", 0, nullptr, ICON_NONE);
modifier_vgroup_ui(layout, ptr, &ob_ptr, "vertex_group", "invert_vertex_group", nullptr);
modifier_panel_end(layout, ptr);
}
static void panelRegister(ARegionType *region_type)
{
modifier_panel_register(region_type, eModifierType_WeightedNormal, panel_draw);
}
ModifierTypeInfo modifierType_WeightedNormal = {
/*name*/ N_("WeightedNormal"),
/*structName*/ "WeightedNormalModifierData",
/*structSize*/ sizeof(WeightedNormalModifierData),
/*srna*/ &RNA_WeightedNormalModifier,
/*type*/ eModifierTypeType_Constructive,
/*flags*/ eModifierTypeFlag_AcceptsMesh | eModifierTypeFlag_SupportsMapping |
eModifierTypeFlag_SupportsEditmode | eModifierTypeFlag_EnableInEditmode,
/*icon*/ ICON_MOD_NORMALEDIT,
/*copyData*/ BKE_modifier_copydata_generic,
/*deformVerts*/ nullptr,
/*deformMatrices*/ nullptr,
/*deformVertsEM*/ nullptr,
/*deformMatricesEM*/ nullptr,
/*modifyMesh*/ modifyMesh,
/*modifyGeometrySet*/ nullptr,
/*initData*/ initData,
/*requiredDataMask*/ requiredDataMask,
/*freeData*/ nullptr,
/*isDisabled*/ nullptr,
/*updateDepsgraph*/ nullptr,
/*dependsOnTime*/ nullptr,
/*dependsOnNormals*/ dependsOnNormals,
/*foreachIDLink*/ nullptr,
/*foreachTexLink*/ nullptr,
/*freeRuntimeData*/ nullptr,
/*panelRegister*/ panelRegister,
/*blendWrite*/ nullptr,
/*blendRead*/ nullptr,
};
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