#define matrix44_inverse(r, m, ambuf, detbuf)\
    (ambuf)[0]   =  ((m)[5]*((m)[10]*(m)[15] - (m)[14]*(m)[11]) - (m)[9]*((m)[6]*(m)[15] - (m)[14]*(m)[7]) + (m)[13]*((m)[6]*(m)[11] - (m)[10]*(m)[7]));\
    (ambuf)[1]   = -((m)[4]*((m)[10]*(m)[15] - (m)[14]*(m)[11]) - (m)[8]*((m)[6]*(m)[15] - (m)[14]*(m)[7]) + (m)[12]*((m)[6]*(m)[11] - (m)[10]*(m)[7]));\
    (ambuf)[2]   =  ((m)[4]*((m)[9]*(m)[15]  - (m)[13]*(m)[11]) - (m)[8]*((m)[5]*(m)[15] - (m)[13]*(m)[7]) + (m)[12]*((m)[5]*(m)[11] - (m)[9]*(m)[7]));\
    (ambuf)[3]   = -((m)[4]*((m)[9]*(m)[14]  - (m)[13]*(m)[10]) - (m)[8]*((m)[5]*(m)[14] - (m)[13]*(m)[6]) + (m)[12]*((m)[5]*(m)[10] - (m)[9]*(m)[6]));\
    (ambuf)[4]   = -((m)[1]*((m)[10]*(m)[15] - (m)[14]*(m)[11]) - (m)[9]*((m)[2]*(m)[15] - (m)[14]*(m)[3]) + (m)[13]*((m)[2]*(m)[11] - (m)[10]*(m)[3]));\
    (ambuf)[5]   =  ((m)[0]*((m)[10]*(m)[15] - (m)[14]*(m)[11]) - (m)[8]*((m)[2]*(m)[15] - (m)[14]*(m)[3]) + (m)[12]*((m)[2]*(m)[11] - (m)[10]*(m)[3]));\
    (ambuf)[6]   = -((m)[0]*((m)[9]*(m)[15]  - (m)[13]*(m)[11]) - (m)[8]*((m)[1]*(m)[15] - (m)[13]*(m)[3]) + (m)[12]*((m)[1]*(m)[11] - (m)[9]*(m)[3]));\
    (ambuf)[7]   =  ((m)[0]*((m)[9]*(m)[14]  - (m)[13]*(m)[10]) - (m)[8]*((m)[1]*(m)[14] - (m)[13]*(m)[2]) + (m)[12]*((m)[1]*(m)[10] - (m)[9]*(m)[2]));\
    (ambuf)[8]   =  ((m)[1]*((m)[6]*(m)[15]  - (m)[14]*(m)[7])  - (m)[5]*((m)[2]*(m)[15] - (m)[14]*(m)[3]) + (m)[13]*((m)[2]*(m)[7]  - (m)[6]*(m)[3]));\
    (ambuf)[9]   = -((m)[0]*((m)[6]*(m)[15]  - (m)[14]*(m)[7])  - (m)[4]*((m)[2]*(m)[15] - (m)[14]*(m)[3]) + (m)[12]*((m)[2]*(m)[7]  - (m)[6]*(m)[3]));\
    (ambuf)[10]  =  ((m)[0]*((m)[5]*(m)[15]  - (m)[13]*(m)[7])  - (m)[4]*((m)[1]*(m)[15] - (m)[13]*(m)[3]) + (m)[12]*((m)[1]*(m)[7]  - (m)[5]*(m)[3]));\
    (ambuf)[11]  = -((m)[0]*((m)[5]*(m)[14]  - (m)[13]*(m)[6])  - (m)[4]*((m)[1]*(m)[14] - (m)[13]*(m)[2]) + (m)[12]*((m)[1]*(m)[6]  - (m)[5]*(m)[2]));\
    (ambuf)[12]  = -((m)[1]*((m)[6]*(m)[11]  - (m)[10]*(m)[7])  - (m)[5]*((m)[2]*(m)[11] - (m)[10]*(m)[3]) + (m)[9]*((m)[2]*(m)[7]   - (m)[6]*(m)[3]));\
    (ambuf)[13]  =  ((m)[0]*((m)[6]*(m)[11]  - (m)[10]*(m)[7])  - (m)[4]*((m)[2]*(m)[11] - (m)[10]*(m)[3]) + (m)[8]*((m)[2]*(m)[7]   - (m)[6]*(m)[3]));\
    (ambuf)[14]  = -((m)[0]*((m)[5]*(m)[11]  - (m)[9]*(m)[7])   - (m)[4]*((m)[1]*(m)[11] - (m)[9]*(m)[3])  + (m)[8]*((m)[1]*(m)[7]   - (m)[5]*(m)[3]));\
    (ambuf)[15]  =  ((m)[0]*((m)[5]*(m)[10]  - (m)[9]*(m)[6])   - (m)[4]*((m)[1]*(m)[10] - (m)[9]*(m)[2])  + (m)[8]*((m)[1]*(m)[6]   - (m)[5]*(m)[2]));\
    (detbuf) = (ambuf)[0]*(m)[0]+(ambuf)[4]*(m)[4]+(ambuf)[8]*(m)[8]+(ambuf)[12]*(m)[12];\
    if(detbuf)\
    {\
        (r)[0]  = (ambuf)[0]  / (detbuf);\
        (r)[1]  = (ambuf)[4]  / (detbuf);\
        (r)[2]  = (ambuf)[8]  / (detbuf);\
        (r)[3]  = (ambuf)[12] / (detbuf);\
        (r)[4]  = (ambuf)[1]  / (detbuf);\
        (r)[5]  = (ambuf)[5]  / (detbuf);\
        (r)[6]  = (ambuf)[9]  / (detbuf);\
        (r)[7]  = (ambuf)[13] / (detbuf);\
        (r)[8]  = (ambuf)[2]  / (detbuf);\
        (r)[9]  = (ambuf)[6]  / (detbuf);\
        (r)[10] = (ambuf)[10] / (detbuf);\
        (r)[11] = (ambuf)[14] / (detbuf);\
        (r)[12] = (ambuf)[3]  / (detbuf);\
        (r)[13] = (ambuf)[7]  / (detbuf);\
        (r)[14] = (ambuf)[11] / (detbuf);\
        (r)[15] = (ambuf)[15] / (detbuf);\
    }

#define matrix44_inverse2(r, m, ambuf, detbuf, cache) /* cache requires array of 17 elements | Ex: float cache[17]; */\
    (ambuf)[0]   =  ((m)[5]*(cache[0] = ((m)[10]*(m)[15] - (m)[14]*(m)[11])) - (m)[9]*(cache[1] = ((m)[6]*(m)[15] - (m)[14]*(m)[7])) + (m)[13]*(cache[2] = ((m)[6]*(m)[11] - (m)[10]*(m)[7])));\
    (ambuf)[1]   = -((m)[4]*(cache[0]) - (m)[8]*(cache[1]) + (m)[12]*(cache[2]));\
    (ambuf)[2]   =  ((m)[4]*(cache[3] = ((m)[9]*(m)[15] - (m)[13]*(m)[11])) - (m)[8]*(cache[4] = ((m)[5]*(m)[15] - (m)[13]*(m)[7])) + (m)[12]*(cache[5] = ((m)[5]*(m)[11] - (m)[9]*(m)[7])));\
    (ambuf)[3]   = -((m)[4]*(cache[6] = ((m)[9]*(m)[14] - (m)[13]*(m)[10])) - (m)[8]*(cache[7] = ((m)[5]*(m)[14] - (m)[13]*(m)[6])) + (m)[12]*(cache[8] = ((m)[5]*(m)[10] - (m)[9]*(m)[6])));\
    (ambuf)[4]   = -((m)[1]*(cache[0]) - (m)[9]*(cache[9] = ((m)[2]*(m)[15] - (m)[14]*(m)[3])) + (m)[13]*(cache[10] = ((m)[2]*(m)[11] - (m)[10]*(m)[3])));\
    (ambuf)[5]   =  ((m)[0]*(cache[0]) - (m)[8]*(cache[9]) + (m)[12]*(cache[10]));\
    (ambuf)[6]   = -((m)[0]*(cache[3]) - (m)[8]*(cache[11] = ((m)[1]*(m)[15] - (m)[13]*(m)[3])) + (m)[12]*(cache[12] = ((m)[1]*(m)[11] - (m)[9]*(m)[3])));\
    (ambuf)[7]   =  ((m)[0]*(cache[6]) - (m)[8]*(cache[13] = ((m)[1]*(m)[14] - (m)[13]*(m)[2])) + (m)[12]*(cache[14] = ((m)[1]*(m)[10] - (m)[9]*(m)[2])));\
    (ambuf)[8]   =  ((m)[1]*(cache[1]) - (m)[5]*(cache[9]) + (m)[13]*(cache[15] = ((m)[2]*(m)[7] - (m)[6]*(m)[3])));\
    (ambuf)[9]   = -((m)[0]*(cache[1]) - (m)[4]*(cache[9]) + (m)[12]*(cache[15]));\
    (ambuf)[10]  =  ((m)[0]*(cache[4]) - (m)[4]*(cache[11]) + (m)[12]*((m)[1]*(m)[7] - (m)[5]*(m)[3]));\
    (ambuf)[11]  = -((m)[0]*(cache[7]) - (m)[4]*(cache[13]) + (m)[12]*((m)[1]*(m)[6] - (m)[5]*(m)[2]));\
    (ambuf)[12]  = -((m)[1]*(cache[2]) - (m)[5]*(cache[10]) + (m)[9]*(cache[16] = ((m)[2]*(m)[7]  - (m)[6]*(m)[3])));\
    (ambuf)[13]  =  ((m)[0]*(cache[2]) - (m)[4]*(cache[10]) + (m)[8]*(cache[16]));\
    (ambuf)[14]  = -((m)[0]*(cache[5]) - (m)[4]*(cache[12])  + (m)[8]*((m)[1]*(m)[7]  - (m)[5]*(m)[3]));\
    (ambuf)[15]  =  ((m)[0]*(cache[8]) - (m)[4]*(cache[14])  + (m)[8]*((m)[1]*(m)[6]  - (m)[5]*(m)[2]));\
    (detbuf) = (ambuf)[0]*(m)[0]+(ambuf)[4]*(m)[4]+(ambuf)[8]*(m)[8]+(ambuf)[12]*(m)[12];\
    if(detbuf)\
    {\
        (r)[0]  = (ambuf)[0]  / (detbuf);\
        (r)[1]  = (ambuf)[4]  / (detbuf);\
        (r)[2]  = (ambuf)[8]  / (detbuf);\
        (r)[3]  = (ambuf)[12] / (detbuf);\
        (r)[4]  = (ambuf)[1]  / (detbuf);\
        (r)[5]  = (ambuf)[5]  / (detbuf);\
        (r)[6]  = (ambuf)[9]  / (detbuf);\
        (r)[7]  = (ambuf)[13] / (detbuf);\
        (r)[8]  = (ambuf)[2]  / (detbuf);\
        (r)[9]  = (ambuf)[6]  / (detbuf);\
        (r)[10] = (ambuf)[10] / (detbuf);\
        (r)[11] = (ambuf)[14] / (detbuf);\
        (r)[12] = (ambuf)[3]  / (detbuf);\
        (r)[13] = (ambuf)[7]  / (detbuf);\
        (r)[14] = (ambuf)[11] / (detbuf);\
        (r)[15] = (ambuf)[15] / (detbuf);\
    }