3 static void MultMatrix_default( float m0[4][4], float m1[4][4],
7 for (i = 0; i < 4; i++)
9 dest[0][i] = m0[0][i]*m1[0][0] + m0[1][i]*m1[0][1] + m0[2][i]*m1[0][2] + m0[3][i]*m1[0][3];
10 dest[1][i] = m0[0][i]*m1[1][0] + m0[1][i]*m1[1][1] + m0[2][i]*m1[1][2] + m0[3][i]*m1[1][3];
11 dest[2][i] = m0[0][i]*m1[2][0] + m0[1][i]*m1[2][1] + m0[2][i]*m1[2][2] + m0[3][i]*m1[2][3];
12 dest[3][i] = m0[3][i]*m1[3][3] + m0[2][i]*m1[3][2] + m0[1][i]*m1[3][1] + m0[0][i]*m1[3][0];
16 static void TransformVectorNormalize_default(float vec[3], float mtx[4][4])
20 vec[0] = mtx[0][0] * vec[0]
23 vec[1] = mtx[0][1] * vec[0]
26 vec[2] = mtx[0][2] * vec[0]
29 len = vec[0]*vec[0] + vec[1]*vec[1] + vec[2]*vec[2];
39 static void Normalize_default(float v[3])
43 len = (float)(v[0]*v[0] + v[1]*v[1] + v[2]*v[2]);
46 len = (float)sqrt( len );
53 static float DotProduct_default( float v0[3], float v1[3] )
56 dot = v0[0]*v1[0] + v0[1]*v1[1] + v0[2]*v1[2];
61 void (*MultMatrix)(float m0[4][4], float m1[4][4], float dest[4][4]) =
63 void (*TransformVectorNormalize)(float vec[3], float mtx[4][4]) =
64 TransformVectorNormalize_default;
65 void (*Normalize)(float v[3]) = Normalize_default;
66 float (*DotProduct)(float v0[3], float v1[3]) = DotProduct_default;