3dsMax 2019.1 has been release with many improved features.
Many new features has been added to Alembic/OSL/Fluid/Arnold. Python and Project got some improvement. Plus 94 fixes.
One of the item among “Bringing your ideas to life in 3ds Max 2019.1 Update” was “Attaching large amounts of meshes is up to 7 times faster”.
So, I decided to test if it is true. The enhancement was done for Collapse utility. I think 3dsMax dev choose to enhance this because this is the only attach which keeps explicit normals.
I test total 4 files. I open the file and attach all geometries.
The result is… drum roll…
Obj:5616 Verts:99,686 Faces: 165,505
2019 : 3.335s
2018 : 32.724
9.81 times faster
Obj:19913 Verts:2,264,540 Faces: 3,265,430
2019 : 11.2s
2018 : 2236s
199.35 times faster
Obj:2429 Verts:2,766,360 Faces: 3,850.480
2019 : 9.5s
2018 : 546s
57.23 times faster
Obj:29596 Verts:9,065,430 Faces: 7,722,170
2019 : 274s
2018 : 19980s
72.95 times faster
It is actually far better than 7 times!