| 70 | } |
| 71 | |
| 72 | af::array ids_from_3D(vector<af::array> &pos, float Rx, float Ry, float Rz) { |
| 73 | af::array x0 = (pos[0] - width / 2); |
| 74 | af::array y0 = |
| 75 | (pos[1] - height / 2) * cos(Rx) + (pos[2] - depth / 2) * sin(Rx); |
| 76 | af::array z0 = |
| 77 | (pos[2] - depth / 2) * cos(Rx) - (pos[2] - depth / 2) * sin(Rx); |
| 78 | |
| 79 | af::array x1 = x0 * cos(Ry) - z0 * sin(Ry); |
| 80 | af::array y1 = y0; |
| 81 | |
| 82 | af::array x2 = x1 * cos(Rz) + y1 * sin(Rz); |
| 83 | af::array y2 = y1 * cos(Rz) - x1 * sin(Rz); |
| 84 | |
| 85 | x2 += width / 2; |
| 86 | y2 += height / 2; |
| 87 | |
| 88 | return (x2.as(u32) * height) + y2.as(u32); |
| 89 | } |
| 90 | |
| 91 | af::array ids_from_3D(vector<af::array> &pos, float Rx, float Ry, float Rz, |
| 92 | af::array filter) { |