(a, be)
| 42 | } |
| 43 | |
| 44 | multiplyMatrices(a, be) { |
| 45 | |
| 46 | var ae = a.elements; |
| 47 | var te = this.elements; |
| 48 | var a11 = ae[0], a12 = ae[4], a13 = ae[8], a14 = ae[12]; |
| 49 | var a21 = ae[1], a22 = ae[5], a23 = ae[9], a24 = ae[13]; |
| 50 | var a31 = ae[2], a32 = ae[6], a33 = ae[10], a34 = ae[14]; |
| 51 | var a41 = ae[3], a42 = ae[7], a43 = ae[11], a44 = ae[15]; |
| 52 | |
| 53 | var b11 = be[0], b12 = be[1], b13 = be[2], b14 = be[3]; |
| 54 | var b21 = be[4], b22 = be[5], b23 = be[6], b24 = be[7]; |
| 55 | var b31 = be[8], b32 = be[9], b33 = be[10], b34 = be[11]; |
| 56 | var b41 = be[12], b42 = be[13], b43 = be[14], b44 = be[15]; |
| 57 | |
| 58 | te[0] = a11 * b11 + a12 * b21 + a13 * b31 + a14 * b41; |
| 59 | te[4] = a11 * b12 + a12 * b22 + a13 * b32 + a14 * b42; |
| 60 | te[8] = a11 * b13 + a12 * b23 + a13 * b33 + a14 * b43; |
| 61 | te[12] = a11 * b14 + a12 * b24 + a13 * b34 + a14 * b44; |
| 62 | |
| 63 | te[1] = a21 * b11 + a22 * b21 + a23 * b31 + a24 * b41; |
| 64 | te[5] = a21 * b12 + a22 * b22 + a23 * b32 + a24 * b42; |
| 65 | te[9] = a21 * b13 + a22 * b23 + a23 * b33 + a24 * b43; |
| 66 | te[13] = a21 * b14 + a22 * b24 + a23 * b34 + a24 * b44; |
| 67 | |
| 68 | te[2] = a31 * b11 + a32 * b21 + a33 * b31 + a34 * b41; |
| 69 | te[6] = a31 * b12 + a32 * b22 + a33 * b32 + a34 * b42; |
| 70 | te[10] = a31 * b13 + a32 * b23 + a33 * b33 + a34 * b43; |
| 71 | te[14] = a31 * b14 + a32 * b24 + a33 * b34 + a34 * b44; |
| 72 | |
| 73 | te[3] = a41 * b11 + a42 * b21 + a43 * b31 + a44 * b41; |
| 74 | te[7] = a41 * b12 + a42 * b22 + a43 * b32 + a44 * b42; |
| 75 | te[11] = a41 * b13 + a42 * b23 + a43 * b33 + a44 * b43; |
| 76 | te[15] = a41 * b14 + a42 * b24 + a43 * b34 + a44 * b44; |
| 77 | |
| 78 | return this; |
| 79 | |
| 80 | } |
| 81 | |
| 82 | // 解决角度为90的整数倍导致Math.cos得到极小的数，其实是0。导致不渲染 |
| 83 | _rounded(value, i) { |
no outgoing calls
no test coverage detected