Gun Gun Pixies .BNC / .BTX (Nintendo Switch)

[RokkuDayo]

I've been looking on the file formats of the Nintendo Switch release of Gun Gun Pixies and I noticed that the game is using a format really similar to the one found in Danganronpa Another Episode: Despair Girls, but I couldn't get any of the tools available to work of these files, which was expected tbh.

I'll be leaving some samples here if anyone has any clue on how they can be converted into something usable.


Samples: https://drive.google.com/file/d/1zS4LoX ... sp=sharing

[demonslayerx8]

the BTX texture seems simple to extract... was able to locate mip count and possibly texture format. I'll dig more into it within the next few days.

the BNC is a model format, has skeleton data inside it, but half of the data is compressed?

[shakotay2]

After "offzipping" the OBJ_CN_013_ClockA.bnc I'd say there's something in there but what?
.

GGP_whatIsIt.png

[RokkuDayo]

After "offzipping" the OBJ_CN_013_ClockA.bnc I'd say there's something in there but what?
.
GGP_whatIsIt.png

That second "image" resembles a face to me, but it must be my imagination.

Again, all I know is that these models are similar to the format found in Danganronpa: Ultra Despair Girls, probably just an updated version.

The files I originally posted here are from the Switch version but recently the game was released on PC, I'll leave them here even though I couldn't find many differences between the files while looking with HxD. And thanks for looking into this, really thought it was long dead.

https://drive.google.com/open?id=12qGAh ... VRkugPaDLg

[RokkuDayo]

I also found out that we can get the textures by using Scarlet (https://github.com/xdanieldzd/Scarlet/releases) and dropping the decompressed output into TextureFinder.




Edit: there's a Noesis script for the textures already so there's no point in using this method (https://zenhax.com/download/file.php?id=7562)

[Dinoguy1000]

That second "image" resembles a face to me, but it must be my imagination.

I see faces in the image too, so it's at the least not only your imagination.

[akderebur]

I remember this format, it was really weird. Anyway I checked the clock bnc. There seems to be 2 compressed chunks in the bnc file. Scarlet can be used to decompress those.

After that I merged the 2 chunks to load it in hex2obj and got the mesh. I will attach the decompressed/merged bnc file.



Still I think it won't be that easy for more complex and skinned models. I remember this format requiring you to transform vertices by the bone positions based on the given bone ids to get a proper mesh. Also vertex weights were weird too.

I might be able to modify my danganronpa plugin to work with this game, but dunno when I will have the time to do it.

[xperiagenerator]

I remember this format, it was really weird. Anyway I checked the clock bnc. There seems to be 2 compressed chunks in the bnc file. Scarlet can be used to decompress those.

After that I merged the 2 chunks to load it in hex2obj and got the mesh. I will attach the decompressed/merged bnc file.

using scarlet on "OBJ_CN_013_ClockA.bnc" i get only 1 decompressed file

how do you get the second chunk to merge?