Mercurial > hg > Members > kono > Cerium
comparison Renderer/Engine/sys.cc @ 678:e201be3f6897
add Load light info for some spe
| author | yutaka@henri.cr.ie.u-ryukyu.ac.jp |
|---|---|
| date | Sun, 06 Dec 2009 07:40:26 +0900 |
| parents | 735f76483bb2 |
| children | 6a80ca9a65d9 |
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| 676:a06eef665c45 | 678:e201be3f6897 |
|---|---|
| 239 { | 239 { |
| 240 xyz[0] += x; | 240 xyz[0] += x; |
| 241 xyz[1] += y; | 241 xyz[1] += y; |
| 242 xyz[2] += z; | 242 xyz[2] += z; |
| 243 } | 243 } |
| 244 | |
| 245 /** | |
| 246 * ベクトルに行列を乗算する | |
| 247 * @param[out] v vector (float[4]) | |
| 248 * @param[in] m matrix (float[16]) | |
| 249 */ | |
| 250 void | |
| 251 ApplyMatrix(float *v, float *m) | |
| 252 { | |
| 253 float t[4]; | |
| 254 | |
| 255 t[0] = v[0]; | |
| 256 t[1] = v[1]; | |
| 257 t[2] = v[2]; | |
| 258 t[3] = v[3]; | |
| 259 | |
| 260 for (int i = 0; i < 4; i++) { | |
| 261 v[i] = t[0]*m[i] + t[1]*m[i+4] + t[2]*m[i+8] + t[3]*m[i+12]; | |
| 262 } | |
| 263 } | |
| 264 |