diff options
Diffstat (limited to 'source/blender/blenkernel/intern/DerivedMesh.c')
| -rw-r--r-- | source/blender/blenkernel/intern/DerivedMesh.c | 32 |
1 files changed, 29 insertions, 3 deletions
diff --git a/source/blender/blenkernel/intern/DerivedMesh.c b/source/blender/blenkernel/intern/DerivedMesh.c index d9af6ac3454..bdfaf9a1be9 100644 --- a/source/blender/blenkernel/intern/DerivedMesh.c +++ b/source/blender/blenkernel/intern/DerivedMesh.c @@ -37,6 +37,7 @@ #include "DNA_cloth_types.h" #include "DNA_key_types.h" +#include "DNA_material_types.h" #include "DNA_mesh_types.h" #include "DNA_meshdata_types.h" #include "DNA_object_types.h" @@ -501,11 +502,36 @@ void DM_update_materials(DerivedMesh *dm, Object *ob) dm->mat = MEM_callocN(totmat * sizeof(*dm->mat), "DerivedMesh.mat"); - for (i = 1; i < totmat; i++) { - dm->mat[i] = give_current_material(ob, i); + /* we leave last material as empty - rationale here is being able to index + * the materials by using the mf->mat_nr directly and leaving the last + * material as NULL in case no materials exist on mesh, so indexing will not fail */ + for (i = 0; i < totmat - 1; i++) { + dm->mat[i] = give_current_material(ob, i + 1); } } +MTFace *DM_paint_uvlayer_active_get(DerivedMesh *dm, int mat_nr) +{ + MTFace *tf_base; + + BLI_assert(mat_nr < dm->totmat); + + if (dm->mat[mat_nr] && dm->mat[mat_nr]->texpaintslot && + dm->mat[mat_nr]->texpaintslot[dm->mat[mat_nr]->paint_active_slot].uvname[0]) + { + tf_base = CustomData_get_layer_named(&dm->faceData, CD_MTFACE, + dm->mat[mat_nr]->texpaintslot[dm->mat[mat_nr]->paint_active_slot].uvname); + /* This can fail if we have changed the name in the UV layer list and have assigned the old name in the material + * texture slot.*/ + if (!tf_base) + tf_base = CustomData_get_layer(&dm->faceData, CD_MTFACE); + } + else { + tf_base = CustomData_get_layer(&dm->faceData, CD_MTFACE); + } + + return tf_base; +} void DM_to_mesh(DerivedMesh *dm, Mesh *me, Object *ob, CustomDataMask mask) { @@ -3091,7 +3117,7 @@ static void navmesh_drawColored(DerivedMesh *dm) static void navmesh_DM_drawFacesTex(DerivedMesh *dm, DMSetDrawOptionsTex setDrawOptions, DMCompareDrawOptions compareDrawOptions, - void *userData) + void *userData, DMDrawFlag UNUSED(flag)) { (void) setDrawOptions; (void) compareDrawOptions; |