Is there some plugin for 3d editing software, besides Ultimate Unwrap3D?
we're working on it
I'd like to check a sample where you partially could extract some meshes from.
that could be difficult, because usually it either works or it doesn't, and its hard to say if something is incomplete unless its obvious like a missing arm or head etc,
and when i say unsupported i mean the U3D plugin will not open it or open it properly.
here is something that looks complete but the UVs are possibly destroyed
here is h2o file for first submesh with working UVs
the actual start address for the UV block is at 0x5b0a0 (this address is stored at 0x34f4 )
but you have to skip 4 bytes to display it properly in Hex2obj.
20 byte stride for the UVs, there must be flag that indicates this change.
h2o for 2nd submesh
this submesh and the rest are clumped together unlike the first one, all the vertices and UVs run together.
the start address for the 2nd submesh vertex data is stored at 0x3508
the start address for the 2nd submesh UV data is stored at 0x351c
the UVs here have a 16 byte stride and are stored as floats instead of halffloats like the first submesh.
okay it looks like some of this stored data under the "POS" sections (0x3528 and 0x3598) is lining up with the change in stride from one submesh to another.
the first "UV2" 16 bytes of data has 0x14 staored at 0x3584
the second "UV2" 16 bytes of data has 0x10 stored at 0x35f4
still don't know how to tell whether the data is going to be floats or halffloats though.