| 121 | } |
| 122 | |
| 123 | M44f |
| 124 | createRandomMat (Rand48& random, V3f& trans, V3f& rot, V3f& scale) |
| 125 | { |
| 126 | |
| 127 | M44f M; |
| 128 | V3f t, r, s; |
| 129 | getRandTRS (random, t, r, s); |
| 130 | |
| 131 | M.translate (t); |
| 132 | M.rotate (r); |
| 133 | |
| 134 | // Shear M. |
| 135 | V3f h ( |
| 136 | float(random.nextf (0.000001, 2.0)), |
| 137 | float(random.nextf (0.000001, 2.0)), |
| 138 | float(random.nextf (0.000001, 2.0))); |
| 139 | |
| 140 | for (int j = 0; j < 3; j++) |
| 141 | if (random.nextf (0.0, 1.0) >= 0.5) h[j] *= -1; |
| 142 | M.shear (h); |
| 143 | |
| 144 | M.scale (s); |
| 145 | |
| 146 | // |
| 147 | // Add a small random error to the elements of M |
| 148 | // |
| 149 | for (int j = 0; j < 4; ++j) |
| 150 | for (int k = 0; k < 3; ++k) |
| 151 | M[j][k] += float(random.nextf (-1e-7, 1e-7)); |
| 152 | |
| 153 | V3f sh; |
| 154 | extractSHRT (M, scale, sh, rot, trans); |
| 155 | |
| 156 | debug (("Scale : %f %f %f\n", s[0], s[1], s[2])); |
| 157 | debug (("Shear : %f %f %f\n", h[0], h[1], h[2])); |
| 158 | debug (("Rot : %f %f %f\n", r[0], r[1], r[2])); |
| 159 | debug (("Trans : %f %f %f\n", t[0], t[1], t[2])); |
| 160 | |
| 161 | return M; |
| 162 | } |
| 163 | |
| 164 | void |
| 165 | compareMat (M44f& M, M44f& N) |
no test coverage detected