Function xMat3x3LookVec3

src/SB/Core/x/xCollide.cpp:2569–2603

        mat.at *= 1.0f / len;
        F32 absx = xabs(mat.at.x);
        F32 absy = xabs(mat.at.y);
        F32 absz = xabs(mat.at.z);
        if (absx < absy && absx < absz)
        {
            mat.right.assign(0.0f, absz, -absy);
        }
        else
        {
            if (absy < absz)
            {
                mat.right.assign(-mat.at.z, 0.0f, mat.at.x);
            }
            else
            {
                mat.right.assign(mat.at.y, -mat.at.x, 0.0f);
            }
        }
        mat.right.normalize();
        mat.up = mat.at.cross(mat.right);
    }
    return len;
}

void xModelAnimCollRestore(const xModelInstance&)
{
}

void xModelAnimCollApply(const xModelInstance&)
{
}

bool xModelAnimCollDirty(const xModelInstance&)
{
    return false;
}

// Make these into inline definitions somewhere appropriate later
xVec3 xVec3::operator+(const xVec3& v) const