Mercurial > hg > Members > kono > Cerium
annotate TaskManager/Test/test_render/sys.cpp @ 174:559b48b69b76
getScale()、getTapestry から、span->length に適切なテクスチャの選択に成功
| author | gongo@localhost.localdomain |
|---|---|
| date | Fri, 12 Dec 2008 12:23:20 +0900 |
| parents | d5cca23ed50c |
| children | 08e2bb36639b |
| rev | line source |
|---|---|
| 160 | 1 #include <stdlib.h> |
| 109 | 2 #include <iostream> |
| 3 #include <math.h> | |
| 4 #include "sys.h" | |
| 5 using namespace std; | |
| 6 | |
| 7 void noMoreMemory() | |
| 8 { | |
| 9 cout << "can't allocate memory\n"; | |
| 10 exit(1); | |
| 11 } | |
| 12 | |
| 13 void matrix4x4(float *xyz, float *xyz1, float *xyz2) //xyz[16] | |
| 14 { | |
| 15 for(int t=0; t<16; t+=4) | |
| 16 { | |
| 17 for(int i=0; i<4; i++) | |
| 18 { | |
| 19 xyz[t+i] = xyz1[t]*xyz2[i] + xyz1[t+1]*xyz2[4+i] + xyz1[t+2]*xyz2[8+i] + xyz1[t+3]*xyz2[12+i]; | |
| 20 } | |
| 21 } | |
| 22 } | |
| 23 | |
| 24 void get_matrix( float *matrix, float *rxyz, float *txyz, float *stack) | |
| 25 { | |
| 26 float radx,rady,radz; | |
| 27 radx = rxyz[0]*3.14/180; | |
| 28 rady = rxyz[1]*3.14/180; | |
| 29 radz = rxyz[2]*3.14/180; | |
| 30 | |
| 31 float sinx = sin(radx); | |
| 32 float cosx = cos(radx); | |
| 33 float siny = sin(rady); | |
| 34 float cosy = cos(rady); | |
| 35 float sinz = sin(radz); | |
| 36 float cosz = cos(radz); | |
| 37 | |
| 38 matrix[0] = cosz*cosy+sinz*sinx*siny; | |
|
174
559b48b69b76
getScale()、getTapestry から、span->length に適切なテクスチャの選択に成功
gongo@localhost.localdomain
parents:
160
diff
changeset
|
39 matrix[1] = sinz*cosx; |
| 109 | 40 matrix[2] = -cosz*siny+sinz*sinx*cosy; |
| 41 matrix[3] = 0; | |
| 42 matrix[4] = -sinz*cosy+cosz*sinx*siny; | |
| 43 matrix[5] = cosz*cosx; | |
| 44 matrix[6] = sinz*siny+cosz*sinx*cosy; | |
| 45 matrix[7] = 0; | |
| 46 matrix[8] = cosx*siny; | |
| 47 matrix[9] = -sinx; | |
| 48 matrix[10] = cosx*cosy; | |
| 49 matrix[11] = 0; | |
| 50 matrix[12] = txyz[0]; | |
| 51 matrix[13] = txyz[1]; | |
| 52 matrix[14] = txyz[2]; | |
| 53 matrix[15] = 1; | |
| 54 | |
| 55 float m[16]; | |
| 56 | |
| 57 for(int i=0; i<16; i++) | |
| 58 { | |
| 59 m[i] = matrix[i]; | |
| 60 } | |
| 61 | |
| 62 if(stack) | |
| 63 { | |
| 64 matrix4x4(matrix, m, stack); | |
| 65 } | |
| 66 | |
| 67 } | |
| 68 | |
| 69 void rotate_x(float *xyz, float r) | |
| 70 { | |
| 71 float rad = r*3.14/180; | |
| 72 | |
| 73 xyz[0] = xyz[0]; | |
| 74 xyz[1] = xyz[1]*cos(rad) - xyz[2]*sin(rad); | |
| 75 xyz[2] = xyz[1]*sin(rad) + xyz[2]*cos(rad); | |
| 76 } | |
| 77 | |
| 78 void rotate_y(float *xyz, float r) | |
| 79 { | |
| 80 float rad = r*3.14/180; | |
| 81 | |
| 82 xyz[0] = xyz[0]*cos(rad) + xyz[2]*sin(rad); | |
| 83 xyz[1] = xyz[1]; | |
| 84 xyz[2] = -xyz[0]*sin(rad) + xyz[2]*cos(rad); | |
| 85 } | |
| 86 | |
| 87 void rotate_z(float *xyz, float r) | |
| 88 { | |
| 89 float rad = r*3.14/180; | |
| 90 | |
| 91 xyz[0] = xyz[0]*cos(rad) - xyz[1]*sin(rad); | |
| 92 xyz[1] = xyz[0]*sin(rad) + xyz[1]*cos(rad); | |
| 93 xyz[2] = xyz[2]; | |
| 94 } | |
| 95 | |
| 96 void rotate(float *xyz, float *matrix) | |
| 97 { | |
| 98 float abc[4]; | |
| 99 abc[0] = xyz[0]; | |
| 100 abc[1] = xyz[1]; | |
| 101 abc[2] = xyz[2]; | |
| 102 abc[3] = xyz[3]; | |
| 103 | |
| 104 for(int i=0; i<4; i++) | |
| 105 { | |
| 106 //xyz[i] = abc[0]*rot[i] + abc[1]*rot[i+4] + abc[2]*rot[i+8] + abc[3]*rot[i+12]; | |
| 107 xyz[i] = abc[0]*matrix[i] + abc[1]*matrix[i+4] + abc[2]*matrix[i+8] + abc[3]*matrix[i+12]; | |
| 108 } | |
| 109 } | |
| 110 | |
| 111 | |
| 112 void translate(float *xyz, float x, float y, float z) | |
| 113 { | |
| 114 xyz[0] += x; | |
| 115 xyz[1] += y; | |
| 116 xyz[2] += z; | |
| 117 } |