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Diffstat (limited to 'source/blender/modifiers')
-rw-r--r--source/blender/modifiers/CMakeLists.txt2
-rw-r--r--source/blender/modifiers/intern/MOD_nodes.cc9
-rw-r--r--source/blender/modifiers/intern/MOD_particlesystem.cc (renamed from source/blender/modifiers/intern/MOD_particlesystem.c)82
-rw-r--r--source/blender/modifiers/intern/MOD_screw.c125
-rw-r--r--source/blender/modifiers/intern/MOD_surfacedeform.c74
-rw-r--r--source/blender/modifiers/intern/MOD_util.h8
6 files changed, 179 insertions, 121 deletions
diff --git a/source/blender/modifiers/CMakeLists.txt b/source/blender/modifiers/CMakeLists.txt
index a5e5bf36dcd..1aac3c2191d 100644
--- a/source/blender/modifiers/CMakeLists.txt
+++ b/source/blender/modifiers/CMakeLists.txt
@@ -70,7 +70,7 @@ set(SRC
intern/MOD_normal_edit.c
intern/MOD_ocean.c
intern/MOD_particleinstance.c
- intern/MOD_particlesystem.c
+ intern/MOD_particlesystem.cc
intern/MOD_remesh.c
intern/MOD_screw.c
intern/MOD_shapekey.c
diff --git a/source/blender/modifiers/intern/MOD_nodes.cc b/source/blender/modifiers/intern/MOD_nodes.cc
index 21041e8e1b2..cdf16d813f3 100644
--- a/source/blender/modifiers/intern/MOD_nodes.cc
+++ b/source/blender/modifiers/intern/MOD_nodes.cc
@@ -985,17 +985,16 @@ static Vector<OutputAttributeToStore> compute_attributes_to_store(
if (!component.attribute_domain_supported(domain)) {
continue;
}
- const int domain_size = component.attribute_domain_size(domain);
+ const int domain_num = component.attribute_domain_num(domain);
blender::bke::GeometryComponentFieldContext field_context{component, domain};
- blender::fn::FieldEvaluator field_evaluator{field_context, domain_size};
+ blender::fn::FieldEvaluator field_evaluator{field_context, domain_num};
for (const OutputAttributeInfo &output_info : outputs_info) {
const CPPType &type = output_info.field.cpp_type();
OutputAttributeToStore store{
component_type,
domain,
output_info.name,
- GMutableSpan{
- type, MEM_malloc_arrayN(domain_size, type.size(), __func__), domain_size}};
+ GMutableSpan{type, MEM_malloc_arrayN(domain_num, type.size(), __func__), domain_num}};
field_evaluator.add_with_destination(output_info.field, store.data);
attributes_to_store.append(store);
}
@@ -1799,7 +1798,7 @@ ModifierTypeInfo modifierType_Nodes = {
eModifierTypeFlag_SupportsEditmode |
eModifierTypeFlag_EnableInEditmode |
eModifierTypeFlag_SupportsMapping),
- /* icon */ ICON_NODETREE,
+ /* icon */ ICON_GEOMETRY_NODES,
/* copyData */ copyData,
diff --git a/source/blender/modifiers/intern/MOD_particlesystem.c b/source/blender/modifiers/intern/MOD_particlesystem.cc
index 032227307e7..0f75038189a 100644
--- a/source/blender/modifiers/intern/MOD_particlesystem.c
+++ b/source/blender/modifiers/intern/MOD_particlesystem.cc
@@ -51,11 +51,11 @@ static void freeData(ModifierData *md)
ParticleSystemModifierData *psmd = (ParticleSystemModifierData *)md;
if (psmd->mesh_final) {
- BKE_id_free(NULL, psmd->mesh_final);
- psmd->mesh_final = NULL;
+ BKE_id_free(nullptr, psmd->mesh_final);
+ psmd->mesh_final = nullptr;
if (psmd->mesh_original) {
- BKE_id_free(NULL, psmd->mesh_original);
- psmd->mesh_original = NULL;
+ BKE_id_free(nullptr, psmd->mesh_original);
+ psmd->mesh_original = nullptr;
}
}
psmd->totdmvert = psmd->totdmedge = psmd->totdmface = 0;
@@ -81,8 +81,8 @@ static void copyData(const ModifierData *md, ModifierData *target, const int fla
* code has to be called then to ensure proper remapping of that pointer. See e.g.
* `BKE_object_copy_particlesystems` or `BKE_object_copy_modifier`. */
- tpsmd->mesh_final = NULL;
- tpsmd->mesh_original = NULL;
+ tpsmd->mesh_final = nullptr;
+ tpsmd->mesh_original = nullptr;
tpsmd->totdmvert = tpsmd->totdmedge = tpsmd->totdmface = 0;
}
@@ -104,7 +104,7 @@ static void deformVerts(ModifierData *md,
{
Mesh *mesh_src = mesh;
ParticleSystemModifierData *psmd = (ParticleSystemModifierData *)md;
- ParticleSystem *psys = NULL;
+ ParticleSystem *psys = nullptr;
if (ctx->object->particlesystem.first) {
psys = psmd->psys;
@@ -117,28 +117,28 @@ static void deformVerts(ModifierData *md,
return;
}
- if (mesh_src == NULL) {
+ if (mesh_src == nullptr) {
mesh_src = MOD_deform_mesh_eval_get(
- ctx->object, NULL, NULL, vertexCos, verts_num, false, true);
- if (mesh_src == NULL) {
+ ctx->object, nullptr, nullptr, vertexCos, verts_num, false, true);
+ if (mesh_src == nullptr) {
return;
}
}
/* clear old dm */
- bool had_mesh_final = (psmd->mesh_final != NULL);
+ bool had_mesh_final = (psmd->mesh_final != nullptr);
if (psmd->mesh_final) {
- BKE_id_free(NULL, psmd->mesh_final);
- psmd->mesh_final = NULL;
+ BKE_id_free(nullptr, psmd->mesh_final);
+ psmd->mesh_final = nullptr;
if (psmd->mesh_original) {
- BKE_id_free(NULL, psmd->mesh_original);
- psmd->mesh_original = NULL;
+ BKE_id_free(nullptr, psmd->mesh_original);
+ psmd->mesh_original = nullptr;
}
}
else if (psmd->flag & eParticleSystemFlag_file_loaded) {
/* in file read mesh just wasn't saved in file so no need to reset everything */
psmd->flag &= ~eParticleSystemFlag_file_loaded;
- if (psys->particles == NULL) {
+ if (psys->particles == nullptr) {
psys->recalc |= ID_RECALC_PSYS_RESET;
}
/* TODO(sergey): This is not how particles were working prior to copy on
@@ -165,18 +165,18 @@ static void deformVerts(ModifierData *md,
/* Get the original mesh from the object, this is what the particles
* are attached to so in case of non-deform modifiers we need to remap
* them to the final mesh (typically subdivision surfaces). */
- Mesh *mesh_original = NULL;
+ Mesh *mesh_original = nullptr;
if (ctx->object->type == OB_MESH) {
BMEditMesh *em = BKE_editmesh_from_object(ctx->object);
if (em) {
/* In edit mode get directly from the edit mesh. */
- psmd->mesh_original = BKE_mesh_from_bmesh_for_eval_nomain(em->bm, NULL, mesh);
+ psmd->mesh_original = BKE_mesh_from_bmesh_for_eval_nomain(em->bm, nullptr, mesh);
}
else {
/* Otherwise get regular mesh. */
- mesh_original = ctx->object->data;
+ mesh_original = static_cast<Mesh *>(ctx->object->data);
}
}
else {
@@ -193,8 +193,8 @@ static void deformVerts(ModifierData *md,
BKE_mesh_tessface_ensure(psmd->mesh_original);
}
- if (!ELEM(mesh_src, NULL, mesh, psmd->mesh_final)) {
- BKE_id_free(NULL, mesh_src);
+ if (!ELEM(mesh_src, nullptr, mesh, psmd->mesh_final)) {
+ BKE_id_free(nullptr, mesh_src);
}
/* Report change in mesh structure.
@@ -221,7 +221,7 @@ static void deformVerts(ModifierData *md,
if (DEG_is_active(ctx->depsgraph)) {
Object *object_orig = DEG_get_original_object(ctx->object);
ModifierData *md_orig = BKE_modifiers_findby_name(object_orig, psmd->modifier.name);
- BLI_assert(md_orig != NULL);
+ BLI_assert(md_orig != nullptr);
ParticleSystemModifierData *psmd_orig = (ParticleSystemModifierData *)md_orig;
psmd_orig->flag = psmd->flag;
}
@@ -237,16 +237,16 @@ static void deformVertsEM(ModifierData *md,
float (*vertexCos)[3],
int verts_num)
{
- const bool do_temp_mesh = (mesh == NULL);
+ const bool do_temp_mesh = (mesh == nullptr);
if (do_temp_mesh) {
mesh = BKE_id_new_nomain(ID_ME, ((ID *)ob->data)->name);
- BM_mesh_bm_to_me(NULL, editData->bm, mesh, &((BMeshToMeshParams){0}));
+ BM_mesh_bm_to_me(nullptr, editData->bm, mesh, &((BMeshToMeshParams){0}));
}
deformVerts(md, ob, mesh, vertexCos, verts_num);
if (derivedData) {
- BKE_id_free(NULL, mesh);
+ BKE_id_free(nullptr, mesh);
}
}
#endif
@@ -258,7 +258,7 @@ static void panel_draw(const bContext *UNUSED(C), Panel *panel)
PointerRNA ob_ptr;
PointerRNA *ptr = modifier_panel_get_property_pointers(panel, &ob_ptr);
- Object *ob = ob_ptr.data;
+ Object *ob = static_cast<Object *>(ob_ptr.data);
ModifierData *md = (ModifierData *)ptr->data;
ParticleSystem *psys = ((ParticleSystemModifierData *)md)->psys;
@@ -291,8 +291,8 @@ static void blendRead(BlendDataReader *reader, ModifierData *md)
{
ParticleSystemModifierData *psmd = (ParticleSystemModifierData *)md;
- psmd->mesh_final = NULL;
- psmd->mesh_original = NULL;
+ psmd->mesh_final = nullptr;
+ psmd->mesh_original = nullptr;
/* This is written as part of ob->particlesystem. */
BLO_read_data_address(reader, &psmd->psys);
psmd->flag &= ~eParticleSystemFlag_psys_updated;
@@ -315,23 +315,23 @@ ModifierTypeInfo modifierType_ParticleSystem = {
/* copyData */ copyData,
/* deformVerts */ deformVerts,
- /* deformMatrices */ NULL,
- /* deformVertsEM */ NULL,
- /* deformMatricesEM */ NULL,
- /* modifyMesh */ NULL,
- /* modifyGeometrySet */ NULL,
+ /* deformMatrices */ nullptr,
+ /* deformVertsEM */ nullptr,
+ /* deformMatricesEM */ nullptr,
+ /* modifyMesh */ nullptr,
+ /* modifyGeometrySet */ nullptr,
/* initData */ initData,
/* requiredDataMask */ requiredDataMask,
/* freeData */ freeData,
- /* isDisabled */ NULL,
- /* updateDepsgraph */ NULL,
- /* dependsOnTime */ NULL,
- /* dependsOnNormals */ NULL,
- /* foreachIDLink */ NULL,
- /* foreachTexLink */ NULL,
- /* freeRuntimeData */ NULL,
+ /* isDisabled */ nullptr,
+ /* updateDepsgraph */ nullptr,
+ /* dependsOnTime */ nullptr,
+ /* dependsOnNormals */ nullptr,
+ /* foreachIDLink */ nullptr,
+ /* foreachTexLink */ nullptr,
+ /* freeRuntimeData */ nullptr,
/* panelRegister */ panelRegister,
- /* blendWrite */ NULL,
+ /* blendWrite */ nullptr,
/* blendRead */ blendRead,
};
diff --git a/source/blender/modifiers/intern/MOD_screw.c b/source/blender/modifiers/intern/MOD_screw.c
index 08925e8aeb1..55fca7e8ecb 100644
--- a/source/blender/modifiers/intern/MOD_screw.c
+++ b/source/blender/modifiers/intern/MOD_screw.c
@@ -375,6 +375,12 @@ static Mesh *modifyMesh(ModifierData *md, const ModifierEvalContext *ctx, Mesh *
uv_u_scale = (uv_u_scale / (float)ltmd->iter) * (angle / ((float)M_PI * 2.0f));
}
+ /* The `screw_ofs` cannot change from now on. */
+ const bool do_remove_doubles = (ltmd->flag & MOD_SCREW_MERGE) && (screw_ofs == 0.0f);
+ /* Only calculate normals if `do_remove_doubles` since removing doubles frees the normals. */
+ const bool do_normal_create = (ltmd->flag & MOD_SCREW_NORMAL_CALC) &&
+ (do_remove_doubles == false);
+
result = BKE_mesh_new_nomain_from_template(
mesh, (int)maxVerts, (int)maxEdges, 0, (int)maxPolys * 4, (int)maxPolys);
@@ -383,7 +389,6 @@ static Mesh *modifyMesh(ModifierData *md, const ModifierEvalContext *ctx, Mesh *
medge_orig = mesh->medge;
mvert_new = result->mvert;
- float(*vert_normals_new)[3] = BKE_mesh_vertex_normals_for_write(result);
mpoly_new = result->mpoly;
mloop_new = result->mloop;
medge_new = result->medge;
@@ -472,7 +477,11 @@ static Mesh *modifyMesh(ModifierData *md, const ModifierEvalContext *ctx, Mesh *
}
}
+ float(*vert_normals_new)[3] = do_normal_create ? BKE_mesh_vertex_normals_for_write(result) :
+ NULL;
+
if (ltmd->flag & MOD_SCREW_NORMAL_CALC) {
+
/*
* Normal Calculation (for face flipping)
* Sort edge verts for correct face flipping
@@ -766,68 +775,69 @@ static Mesh *modifyMesh(ModifierData *md, const ModifierEvalContext *ctx, Mesh *
*
* calculate vertex normals that can be propagated on lathing
* use edge connectivity work this out */
- if (SV_IS_VALID(vc->v[0])) {
- if (SV_IS_VALID(vc->v[1])) {
- /* 2 edges connected. */
- /* make 2 connecting vert locations relative to the middle vert */
- sub_v3_v3v3(tmp_vec1, mvert_new[vc->v[0]].co, mvert_new[i].co);
- sub_v3_v3v3(tmp_vec2, mvert_new[vc->v[1]].co, mvert_new[i].co);
- /* normalize so both edges have the same influence, no matter their length */
- normalize_v3(tmp_vec1);
- normalize_v3(tmp_vec2);
-
- /* vc_no_tmp1 - this line is the average direction of both connecting edges
- *
- * Use the edge order to make the subtraction, flip the normal the right way
- * edge should be there but check just in case... */
- if (vc->e[0]->v1 == i) {
- sub_v3_v3(tmp_vec1, tmp_vec2);
- }
- else {
- sub_v3_v3v3(tmp_vec1, tmp_vec2, tmp_vec1);
- }
- }
- else {
- /* only 1 edge connected - same as above except
- * don't need to average edge direction */
- if (vc->e[0]->v2 == i) {
- sub_v3_v3v3(tmp_vec1, mvert_new[i].co, mvert_new[vc->v[0]].co);
+ if (do_normal_create) {
+ if (SV_IS_VALID(vc->v[0])) {
+ if (SV_IS_VALID(vc->v[1])) {
+ /* 2 edges connected. */
+ /* make 2 connecting vert locations relative to the middle vert */
+ sub_v3_v3v3(tmp_vec1, mvert_new[vc->v[0]].co, mvert_new[i].co);
+ sub_v3_v3v3(tmp_vec2, mvert_new[vc->v[1]].co, mvert_new[i].co);
+ /* normalize so both edges have the same influence, no matter their length */
+ normalize_v3(tmp_vec1);
+ normalize_v3(tmp_vec2);
+
+ /* vc_no_tmp1 - this line is the average direction of both connecting edges
+ *
+ * Use the edge order to make the subtraction, flip the normal the right way
+ * edge should be there but check just in case... */
+ if (vc->e[0]->v1 == i) {
+ sub_v3_v3(tmp_vec1, tmp_vec2);
+ }
+ else {
+ sub_v3_v3v3(tmp_vec1, tmp_vec2, tmp_vec1);
+ }
}
else {
- sub_v3_v3v3(tmp_vec1, mvert_new[vc->v[0]].co, mvert_new[i].co);
+ /* only 1 edge connected - same as above except
+ * don't need to average edge direction */
+ if (vc->e[0]->v2 == i) {
+ sub_v3_v3v3(tmp_vec1, mvert_new[i].co, mvert_new[vc->v[0]].co);
+ }
+ else {
+ sub_v3_v3v3(tmp_vec1, mvert_new[vc->v[0]].co, mvert_new[i].co);
+ }
}
- }
- /* tmp_vec2 - is a line 90d from the pivot to the vec
- * This is used so the resulting normal points directly away from the middle */
- cross_v3_v3v3(tmp_vec2, axis_vec, vc->co);
+ /* tmp_vec2 - is a line 90d from the pivot to the vec
+ * This is used so the resulting normal points directly away from the middle */
+ cross_v3_v3v3(tmp_vec2, axis_vec, vc->co);
- if (UNLIKELY(is_zero_v3(tmp_vec2))) {
- /* we're _on_ the axis, so copy it based on our winding */
- if (vc->e[0]->v2 == i) {
- negate_v3_v3(vc->no, axis_vec);
+ if (UNLIKELY(is_zero_v3(tmp_vec2))) {
+ /* we're _on_ the axis, so copy it based on our winding */
+ if (vc->e[0]->v2 == i) {
+ negate_v3_v3(vc->no, axis_vec);
+ }
+ else {
+ copy_v3_v3(vc->no, axis_vec);
+ }
}
else {
- copy_v3_v3(vc->no, axis_vec);
+ /* edge average vector and right angle to the pivot make the normal */
+ cross_v3_v3v3(vc->no, tmp_vec1, tmp_vec2);
}
}
else {
- /* edge average vector and right angle to the pivot make the normal */
- cross_v3_v3v3(vc->no, tmp_vec1, tmp_vec2);
+ copy_v3_v3(vc->no, vc->co);
}
- }
- else {
- copy_v3_v3(vc->no, vc->co);
- }
-
- /* we won't be looping on this data again so copy normals here */
- if ((angle < 0.0f) != do_flip) {
- negate_v3(vc->no);
- }
- normalize_v3(vc->no);
- copy_v3_v3(vert_normals_new[i], vc->no);
+ /* we won't be looping on this data again so copy normals here */
+ if ((angle < 0.0f) != do_flip) {
+ negate_v3(vc->no);
+ }
+ normalize_v3(vc->no);
+ copy_v3_v3(vert_normals_new[i], vc->no);
+ }
/* Done with normals */
}
}
@@ -846,7 +856,6 @@ static Mesh *modifyMesh(ModifierData *md, const ModifierEvalContext *ctx, Mesh *
for (step = 1; step < step_tot; step++) {
const uint varray_stride = totvert * step;
float step_angle;
- float nor_tx[3];
float mat[4][4];
/* Rotation Matrix */
step_angle = (angle / (float)(step_tot - (!close))) * (float)step;
@@ -872,10 +881,12 @@ static Mesh *modifyMesh(ModifierData *md, const ModifierEvalContext *ctx, Mesh *
for (j = 0; j < totvert; j++, mv_new_base++, mv_new++) {
/* set normal */
if (vert_connect) {
- mul_v3_m3v3(nor_tx, mat3, vert_connect[j].no);
-
- /* set the normal now its transformed */
- copy_v3_v3(vert_normals_new[mv_new - mvert_new], nor_tx);
+ if (do_normal_create) {
+ /* set the normal now its transformed */
+ float nor_tx[3];
+ mul_v3_m3v3(nor_tx, mat3, vert_connect[j].no);
+ copy_v3_v3(vert_normals_new[mv_new - mvert_new], nor_tx);
+ }
}
/* set location */
@@ -1118,11 +1129,11 @@ static Mesh *modifyMesh(ModifierData *md, const ModifierEvalContext *ctx, Mesh *
MEM_freeN(vert_loop_map);
}
- if ((ltmd->flag & MOD_SCREW_NORMAL_CALC)) {
+ if (do_normal_create) {
BKE_mesh_vertex_normals_clear_dirty(result);
}
- if ((ltmd->flag & MOD_SCREW_MERGE) && (screw_ofs == 0.0f)) {
+ if (do_remove_doubles) {
result = mesh_remove_doubles_on_axis(result,
mvert_new,
totvert,
diff --git a/source/blender/modifiers/intern/MOD_surfacedeform.c b/source/blender/modifiers/intern/MOD_surfacedeform.c
index a80918b8d2b..8a0f49efb65 100644
--- a/source/blender/modifiers/intern/MOD_surfacedeform.c
+++ b/source/blender/modifiers/intern/MOD_surfacedeform.c
@@ -1166,8 +1166,8 @@ static bool surfacedeformBind(Object *ob,
SurfaceDeformModifierData *smd_eval,
float (*vertexCos)[3],
uint verts_num,
- uint tpolys_num,
- uint tverts_num,
+ uint target_polys_num,
+ uint target_verts_num,
Mesh *target,
Mesh *mesh)
{
@@ -1182,7 +1182,7 @@ static bool surfacedeformBind(Object *ob,
SDefAdjacency *adj_array;
SDefEdgePolys *edge_polys;
- vert_edges = MEM_calloc_arrayN(tverts_num, sizeof(*vert_edges), "SDefVertEdgeMap");
+ vert_edges = MEM_calloc_arrayN(target_verts_num, sizeof(*vert_edges), "SDefVertEdgeMap");
if (vert_edges == NULL) {
BKE_modifier_set_error(ob, (ModifierData *)smd_eval, "Out of memory");
return false;
@@ -1220,7 +1220,7 @@ static bool surfacedeformBind(Object *ob,
}
adj_result = buildAdjacencyMap(
- mpoly, medge, mloop, tpolys_num, tedges_num, vert_edges, adj_array, edge_polys);
+ mpoly, medge, mloop, target_polys_num, tedges_num, vert_edges, adj_array, edge_polys);
if (adj_result == MOD_SDEF_BIND_RESULT_NONMANY_ERR) {
BKE_modifier_set_error(
@@ -1233,7 +1233,8 @@ static bool surfacedeformBind(Object *ob,
}
smd_orig->mesh_verts_num = verts_num;
- smd_orig->polys_num = tpolys_num;
+ smd_orig->target_verts_num = target_verts_num;
+ smd_orig->target_polys_num = target_polys_num;
int defgrp_index;
MDeformVert *dvert;
@@ -1249,7 +1250,8 @@ static bool surfacedeformBind(Object *ob,
.medge = medge,
.mloop = mloop,
.looptri = BKE_mesh_runtime_looptri_ensure(target),
- .targetCos = MEM_malloc_arrayN(tverts_num, sizeof(float[3]), "SDefTargetBindVertArray"),
+ .targetCos = MEM_malloc_arrayN(
+ target_verts_num, sizeof(float[3]), "SDefTargetBindVertArray"),
.bind_verts = smd_orig->verts,
.vertexCos = vertexCos,
.falloff = smd_orig->falloff,
@@ -1268,7 +1270,7 @@ static bool surfacedeformBind(Object *ob,
invert_m4_m4(data.imat, smd_orig->mat);
- for (int i = 0; i < tverts_num; i++) {
+ for (int i = 0; i < target_verts_num; i++) {
mul_v3_m4v3(data.targetCos[i], smd_orig->mat, mvert[i].co);
}
@@ -1431,7 +1433,7 @@ static void surfacedeformModifier_do(ModifierData *md,
{
SurfaceDeformModifierData *smd = (SurfaceDeformModifierData *)md;
Mesh *target;
- uint tverts_num, tpolys_num;
+ uint target_verts_num, target_polys_num;
/* Exit function if bind flag is not set (free bind data if any). */
if (!(smd->flags & MOD_SDEF_BIND)) {
@@ -1453,8 +1455,8 @@ static void surfacedeformModifier_do(ModifierData *md,
return;
}
- tverts_num = BKE_mesh_wrapper_vert_len(target);
- tpolys_num = BKE_mesh_wrapper_poly_len(target);
+ target_verts_num = BKE_mesh_wrapper_vert_len(target);
+ target_polys_num = BKE_mesh_wrapper_poly_len(target);
/* If not bound, execute bind. */
if (smd->verts == NULL) {
@@ -1473,25 +1475,62 @@ static void surfacedeformModifier_do(ModifierData *md,
/* Avoid converting edit-mesh data, binding is an exception. */
BKE_mesh_wrapper_ensure_mdata(target);
- if (!surfacedeformBind(
- ob, smd_orig, smd, vertexCos, verts_num, tpolys_num, tverts_num, target, mesh)) {
+ if (!surfacedeformBind(ob,
+ smd_orig,
+ smd,
+ vertexCos,
+ verts_num,
+ target_polys_num,
+ target_verts_num,
+ target,
+ mesh)) {
smd->flags &= ~MOD_SDEF_BIND;
}
/* Early abort, this is binding 'call', no need to perform whole evaluation. */
return;
}
- /* Poly count checks */
+ /* Geometry count on the deforming mesh. */
if (smd->mesh_verts_num != verts_num) {
BKE_modifier_set_error(
ob, md, "Vertices changed from %u to %u", smd->mesh_verts_num, verts_num);
return;
}
- if (smd->polys_num != tpolys_num) {
+
+ /* Geometry count on the target mesh. */
+ if (smd->target_polys_num != target_polys_num && smd->target_verts_num == 0) {
+ /* Change in the number of polygons does not really imply change in the vertex count, but
+ * this is how the modifier worked before the vertex count was known. Follow the legacy
+ * logic without requirement to re-bind the mesh. */
BKE_modifier_set_error(
- ob, md, "Target polygons changed from %u to %u", smd->polys_num, tpolys_num);
+ ob, md, "Target polygons changed from %u to %u", smd->target_polys_num, target_polys_num);
return;
}
+ if (smd->target_verts_num != 0 && smd->target_verts_num != target_verts_num) {
+ if (smd->target_verts_num > target_verts_num) {
+ /* Number of vertices on the target did reduce. There is no usable recovery from this. */
+ BKE_modifier_set_error(ob,
+ md,
+ "Target vertices changed from %u to %u",
+ smd->target_verts_num,
+ target_verts_num);
+ return;
+ }
+
+ /* Assume the increase in the vertex count means that the "new" vertices in the target mesh are
+ * added after the original ones. This covers typical case when target was at the subdivision
+ * level 0 and then subdivision was increased (i.e. for the render purposes). */
+
+ BKE_modifier_set_error(ob,
+ md,
+ "Target vertices changed from %u to %u, continuing anyway",
+ smd->target_verts_num,
+ target_verts_num);
+
+ /* In theory we only need the `smd->verts_num` vertices in the `targetCos` for evaluation, but
+ * it is not currently possible to request a subset of coordinates: the API expects that the
+ * caller needs coordinates of all vertices and asserts for it. */
+ }
/* Early out if modifier would not affect input at all - still *after* the sanity checks
* (and potential binding) above. */
@@ -1507,7 +1546,7 @@ static void surfacedeformModifier_do(ModifierData *md,
/* Actual vertex location update starts here */
SDefDeformData data = {
.bind_verts = smd->verts,
- .targetCos = MEM_malloc_arrayN(tverts_num, sizeof(float[3]), "SDefTargetVertArray"),
+ .targetCos = MEM_malloc_arrayN(target_verts_num, sizeof(float[3]), "SDefTargetVertArray"),
.vertexCos = vertexCos,
.dvert = dvert,
.defgrp_index = defgrp_index,
@@ -1516,7 +1555,8 @@ static void surfacedeformModifier_do(ModifierData *md,
};
if (data.targetCos != NULL) {
- BKE_mesh_wrapper_vert_coords_copy_with_mat4(target, data.targetCos, tverts_num, smd->mat);
+ BKE_mesh_wrapper_vert_coords_copy_with_mat4(
+ target, data.targetCos, target_verts_num, smd->mat);
TaskParallelSettings settings;
BLI_parallel_range_settings_defaults(&settings);
diff --git a/source/blender/modifiers/intern/MOD_util.h b/source/blender/modifiers/intern/MOD_util.h
index aef254b1103..c37d6a3f2c1 100644
--- a/source/blender/modifiers/intern/MOD_util.h
+++ b/source/blender/modifiers/intern/MOD_util.h
@@ -11,6 +11,10 @@
#include "DEG_depsgraph_build.h"
+#ifdef __cplusplus
+extern "C" {
+#endif
+
struct MDeformVert;
struct Mesh;
struct ModifierData;
@@ -51,3 +55,7 @@ void MOD_depsgraph_update_object_bone_relation(struct DepsNodeHandle *node,
struct Object *object,
const char *bonename,
const char *description);
+
+#ifdef __cplusplus
+}
+#endif \ No newline at end of file