I already reverse engineered the LZ4 one, just need to get LZMA working.

0xE6C is good constant to look for to find the LZMA code (which turns out to be slightly modified, too).

Two types. #pragma pack(push, 4) struct SFatFileEntry{ /*uint32_t field_0; uint32_t field_4; uint32_t field_8; uint32_t field_c; uint32_t field_10;*/ uint64_t Hash; uint64_t CompressedSize : 30; uint64_t Offset : 34; uint32_t CompressionMethod : 2; uint32_t UncompressedSize : 30; }; #pragma pack(pop...

Yeah, it uses LZMA and modified version of LZ4.

To get a bone's world transform, you multiply a bone's local transform by its parent's world transform (if the bone doesn't have a parent, copy the local transform to the world transform). For the other way around, you multiply the bone's world transform by the inverse of the parent's worldtransform...

For a ghetto solution you could invert the axis in your vertex shader after applying the skinning, before applying the other transforms.

Well, what was it?

Can you provide the box file?

For the box you have 8 vertices, but your indices go up to 23, so that's probably not index data or there are more vertices.

Knowing which game it is would be useful.

Yeah. I've never seen it done like this before, but it certainly saves space and it doesn't take too many instruction to decode in the shader.

inline CVec2f SinCos(float f){ return CVec2f(cosf(f), sinf(f)); } void BDOGetTangentSpaceVectors(const CVec4f &input, CVec3f &Normal, CVec3f &Tangent, CVec3f &Binormal){ CVec2f bxy, bzs, txy, tzs; CVec4f scaled = input * (M_PI * 2.0f) - M_PI; //Rescale from 0.0 - 1.0 to -PI - +PI tx...

Open the exe in disassembler then look for references the the debug/log strings.

That's the older version of the format used by Planetside 2/H1Z1.

Some of your UVs are broken because you aren't scaling the SNORM ones.

As for the mirroring, that's just an engine coordinate system thing.