Code:
std::vector<float3> normals;
uint32_t numNormals = fileHeader.sectionSizes[2] / 6; // 6 (3 short a 2 bytes) per Vertex
for (unsigned int i = 0; i < numNormals; i++) {
float3 normal;
short x, y, z;
inputFile.read(reinterpret_cast<char *>(&x), sizeof(x));
inputFile.read(reinterpret_cast<char *>(&y), sizeof(y));
inputFile.read(reinterpret_cast<char *>(&z), sizeof(z));
x = _byteswap_ushort(x);
y = _byteswap_ushort(y);
z = _byteswap_ushort(z);
normal.x = x / (float)0x8000;
normal.y = y / (float)0x8000;
normal.z = z / (float)0x8000;
outFile << "vn " << normal.x << " " << normal.y << " " << normal.z << std::endl;
}Although _byteswap_ushort is only defined for unsigned shorts it should work for signed shorts as well (kinda checked this with manually swapping the bytes).
