Distorted Android

// this is android.opengl.Matrix.rotateM(), but with pre-computed sin and cos of the angle

// and also we have to pre-allocate and pass here two temp arrays.

  public static void rotateSinCos(float[] output, float[] tmp1, float[] tmp2, float sin, float cos, float x, float y, float z)

    tmp1[0]  = (1-cos)*x*x + cos;

    tmp1[1]  = (1-cos)*x*y + sin*z;

    tmp1[2]  = (1-cos)*x*z - sin*y;

    tmp1[3]  = 0;

    tmp1[4]  = (1-cos)*x*y - sin*z;

    tmp1[5]  = (1-cos)*y*y + cos;

    tmp1[6]  = (1-cos)*y*z + sin*x;

    tmp1[7]  = 0;

    tmp1[8]  = (1-cos)*x*z + sin*y;

    tmp1[9]  = (1-cos)*y*z - sin*x;

    tmp1[10] = (1-cos)*z*z + cos;

    tmp1[11] = 0;

    tmp1[12] = 0;

    tmp1[13] = 0;

    tmp1[14] = 0;

    tmp1[15] = 1;

    tmp2[0]  =  output[ 0];

    tmp2[1]  =  output[ 1];

    tmp2[2]  =  output[ 2];

    tmp2[3]  =  output[ 3];

    tmp2[4]  =  output[ 4];

    tmp2[5]  =  output[ 5];

    tmp2[6]  =  output[ 6];

    tmp2[7]  =  output[ 7];

    tmp2[8]  =  output[ 8];

    tmp2[9]  =  output[ 9];

    tmp2[10] =  output[10];

    tmp2[11] =  output[11];

    tmp2[12] =  output[12];

    tmp2[13] =  output[13];

    tmp2[14] =  output[14];

    tmp2[15] =  output[15];

    multiply(output,tmp2,tmp1);