int editmesh_get_first_deform_matrices(Scene *scene, Object *ob, EditMesh *em, float (**deformmats)[3][3], float (**deformcos)[3]) { ModifierData *md; DerivedMesh *dm; int i, a, numleft = 0, numVerts = 0; int cageIndex = modifiers_getCageIndex(scene, ob, NULL, 1); float (*defmats)[3][3] = NULL, (*deformedVerts)[3] = NULL; modifiers_clearErrors(ob); dm = NULL; md = modifiers_getVirtualModifierList(ob); /* compute the deformation matrices and coordinates for the first modifiers with on cage editing that are enabled and support computing deform matrices */ for(i = 0; md && i <= cageIndex; i++, md = md->next) { ModifierTypeInfo *mti = modifierType_getInfo(md->type); if(!editmesh_modifier_is_enabled(scene, md, dm)) continue; if(mti->type==eModifierTypeType_OnlyDeform && mti->deformMatricesEM) { if(!defmats) { dm= editmesh_get_derived(em, NULL); deformedVerts= editmesh_get_vertex_cos(em, &numVerts); defmats= MEM_callocN(sizeof(*defmats)*numVerts, "defmats"); for(a=0; a<numVerts; a++) unit_m3(defmats[a]); } mti->deformMatricesEM(md, ob, em, dm, deformedVerts, defmats, numVerts); } else break; } for(; md && i <= cageIndex; md = md->next, i++) if(editmesh_modifier_is_enabled(scene, md, dm) && modifier_isCorrectableDeformed(md)) numleft++; if(dm) dm->release(dm); *deformmats= defmats; *deformcos= deformedVerts; return numleft; }