diff options
Diffstat (limited to 'source/blender/modifiers/intern/MOD_util.c')
| -rw-r--r-- | source/blender/modifiers/intern/MOD_util.c | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/source/blender/modifiers/intern/MOD_util.c b/source/blender/modifiers/intern/MOD_util.c index a271d0baa91..6de0cd753cd 100644 --- a/source/blender/modifiers/intern/MOD_util.c +++ b/source/blender/modifiers/intern/MOD_util.c @@ -34,6 +34,7 @@ #include "DNA_image_types.h" #include "DNA_meshdata_types.h" +#include "DNA_mesh_types.h" #include "DNA_modifier_types.h" #include "DNA_object_types.h" #include "DNA_scene_types.h" @@ -44,8 +45,10 @@ #include "BKE_cdderivedmesh.h" #include "BKE_deform.h" +#include "BKE_editmesh.h" #include "BKE_image.h" #include "BKE_lattice.h" +#include "BKE_library.h" #include "BKE_mesh.h" #include "BKE_modifier.h" @@ -55,6 +58,8 @@ #include "MEM_guardedalloc.h" +#include "bmesh.h" + void modifier_init_texture(const Scene *scene, Tex *tex) { if (!tex) @@ -65,6 +70,88 @@ void modifier_init_texture(const Scene *scene, Tex *tex) } } +/* TODO to be renamed to get_texture_coords once we are done with moving modifiers to Mesh. */ +/** \param cos may be NULL, in which case we use directly mesh vertices' coordinates. */ +void get_texture_coords_mesh( + MappingInfoModifierData *dmd, + Object *ob, + Mesh *mesh, + float (*cos)[3], + float (*r_texco)[3]) +{ + const int numVerts = mesh->totvert; + int i; + int texmapping = dmd->texmapping; + float mapob_imat[4][4]; + + if (texmapping == MOD_DISP_MAP_OBJECT) { + if (dmd->map_object) + invert_m4_m4(mapob_imat, dmd->map_object->obmat); + else /* if there is no map object, default to local */ + texmapping = MOD_DISP_MAP_LOCAL; + } + + /* UVs need special handling, since they come from faces */ + if (texmapping == MOD_DISP_MAP_UV) { + if (CustomData_has_layer(&mesh->ldata, CD_MLOOPUV)) { + MPoly *mpoly = mesh->mpoly; + MPoly *mp; + MLoop *mloop = mesh->mloop; + BLI_bitmap *done = BLI_BITMAP_NEW(numVerts, __func__); + const int numPolys = mesh->totpoly; + char uvname[MAX_CUSTOMDATA_LAYER_NAME]; + MLoopUV *mloop_uv; + + CustomData_validate_layer_name(&mesh->ldata, CD_MLOOPUV, dmd->uvlayer_name, uvname); + mloop_uv = CustomData_get_layer_named(&mesh->ldata, CD_MLOOPUV, uvname); + + /* verts are given the UV from the first face that uses them */ + for (i = 0, mp = mpoly; i < numPolys; ++i, ++mp) { + unsigned int fidx = mp->totloop - 1; + + do { + unsigned int lidx = mp->loopstart + fidx; + unsigned int vidx = mloop[lidx].v; + + if (!BLI_BITMAP_TEST(done, vidx)) { + /* remap UVs from [0, 1] to [-1, 1] */ + r_texco[vidx][0] = (mloop_uv[lidx].uv[0] * 2.0f) - 1.0f; + r_texco[vidx][1] = (mloop_uv[lidx].uv[1] * 2.0f) - 1.0f; + BLI_BITMAP_ENABLE(done, vidx); + } + + } while (fidx--); + } + + MEM_freeN(done); + return; + } + else { + /* if there are no UVs, default to local */ + texmapping = MOD_DISP_MAP_LOCAL; + } + } + + MVert *mv = mesh->mvert; + for (i = 0; i < numVerts; ++i, ++mv, ++r_texco) { + switch (texmapping) { + case MOD_DISP_MAP_LOCAL: + copy_v3_v3(*r_texco, cos != NULL ? *cos : mv->co); + break; + case MOD_DISP_MAP_GLOBAL: + mul_v3_m4v3(*r_texco, ob->obmat, cos != NULL ? *cos : mv->co); + break; + case MOD_DISP_MAP_OBJECT: + mul_v3_m4v3(*r_texco, ob->obmat, cos != NULL ? *cos : mv->co); + mul_m4_v3(mapob_imat, *r_texco); + break; + } + if (cos != NULL) { + cos++; + } + } +} + void get_texture_coords( MappingInfoModifierData *dmd, Object *ob, DerivedMesh *dm, @@ -204,6 +291,53 @@ DerivedMesh *get_dm( return dm; } +/* returns a mesh if mesh == NULL, for deforming modifiers that need it */ +Mesh *get_mesh( + Object *ob, struct BMEditMesh *em, Mesh *mesh, + float (*vertexCos)[3], bool use_normals, bool use_orco) +{ + if (mesh) { + /* pass */ + } + else if (ob->type == OB_MESH) { + struct BMeshToMeshParams bmtmp = {0}; + if (em) mesh = BKE_bmesh_to_mesh_nomain(em->bm, &bmtmp); + else { + /* TODO(sybren): after modifier conversion of DM to Mesh is done, check whether + * we really need a copy here. Maybe the CoW ob->data can be directly used. */ + BKE_id_copy_ex( + NULL, ob->data, (ID **)&mesh, + LIB_ID_CREATE_NO_MAIN | + LIB_ID_CREATE_NO_USER_REFCOUNT | + LIB_ID_CREATE_NO_DEG_TAG, + false); + } + + /* TODO(sybren): after modifier conversion of DM to Mesh is done, check whether + * we really need vertexCos here. */ + if (vertexCos) { + BKE_mesh_apply_vert_coords(mesh, vertexCos); + mesh->runtime.cd_dirty_vert |= CD_MASK_NORMAL; + } + + if (use_orco) { + CustomData_add_layer(&mesh->vdata, CD_ORCO, CD_ASSIGN, BKE_mesh_orco_verts_get(ob), mesh->totvert); + } + } + else if (ELEM(ob->type, OB_FONT, OB_CURVE, OB_SURF)) { + /* TODO(sybren): get evaluated mesh from depsgraph once that's properly generated for curves. */ + mesh = BKE_mesh_new_nomain_from_curve(ob); + } + + if (use_normals) { + if (LIKELY(mesh)) { + BKE_mesh_ensure_normals(mesh); + } + } + + return mesh; +} + /* Get derived mesh for other object, which is used as an operand for the modifier, * i.e. second operand for boolean modifier. */ @@ -231,6 +365,20 @@ void modifier_get_vgroup(Object *ob, DerivedMesh *dm, const char *name, MDeformV } } +/* TODO(sybren): replace the above function with this one, once we got rid of DerivedMesh for modifiers. */ +void modifier_get_vgroup_mesh(Object *ob, struct Mesh *mesh, const char *name, MDeformVert **dvert, int *defgrp_index) +{ + *defgrp_index = defgroup_name_index(ob, name); + *dvert = NULL; + + if (*defgrp_index != -1) { + if (ob->type == OB_LATTICE) + *dvert = BKE_lattice_deform_verts_get(ob); + else if (mesh) + *dvert = mesh->dvert; + } +} + /* only called by BKE_modifier.h/modifier.c */ void modifier_type_init(ModifierTypeInfo *types[]) |