Mercurial > hg > Game > Cerium
annotate TaskManager/Test/test_render/sys.cpp @ 206:f5784443dd50 draft
add Camera
| author | gongo@gendarme.cr.ie.u-ryukyu.ac.jp |
|---|---|
| date | Thu, 29 Jan 2009 13:52:47 +0900 |
| parents | be90197f90d4 |
| children | c020ccff4627 |
| 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 | |
| 206 | 38 /* View Transform */ |
| 109 | 39 matrix[0] = cosz*cosy+sinz*sinx*siny; |
|
174
2c7d9057dd5d
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
|
40 matrix[1] = sinz*cosx; |
| 109 | 41 matrix[2] = -cosz*siny+sinz*sinx*cosy; |
| 42 matrix[3] = 0; | |
| 43 matrix[4] = -sinz*cosy+cosz*sinx*siny; | |
| 44 matrix[5] = cosz*cosx; | |
| 45 matrix[6] = sinz*siny+cosz*sinx*cosy; | |
| 46 matrix[7] = 0; | |
| 47 matrix[8] = cosx*siny; | |
| 48 matrix[9] = -sinx; | |
| 49 matrix[10] = cosx*cosy; | |
| 50 matrix[11] = 0; | |
| 51 matrix[12] = txyz[0]; | |
| 52 matrix[13] = txyz[1]; | |
| 53 matrix[14] = txyz[2]; | |
| 54 matrix[15] = 1; | |
| 55 | |
| 206 | 56 /* Perspective Transform */ |
| 57 #if 0 | |
| 58 float n = 0.0f; | |
| 59 float f = 1000.0f; | |
| 60 float a = 0.995f / (n-f); | |
| 61 float b = 1-((0.995*n)/(n-f)); | |
| 62 | |
| 63 matrix[0] *= a*txyz[2]+b; | |
| 64 matrix[5] *= a*txyz[2]+b; | |
| 65 #endif | |
| 66 | |
| 109 | 67 float m[16]; |
| 68 | |
| 69 for(int i=0; i<16; i++) | |
| 70 { | |
| 71 m[i] = matrix[i]; | |
| 72 } | |
| 73 | |
| 74 if(stack) | |
| 75 { | |
| 176 | 76 matrix4x4(matrix, m, stack); |
| 109 | 77 } |
| 78 | |
| 79 } | |
| 80 | |
| 81 void rotate_x(float *xyz, float r) | |
| 82 { | |
| 83 float rad = r*3.14/180; | |
| 84 | |
| 85 xyz[0] = xyz[0]; | |
| 86 xyz[1] = xyz[1]*cos(rad) - xyz[2]*sin(rad); | |
| 87 xyz[2] = xyz[1]*sin(rad) + xyz[2]*cos(rad); | |
| 88 } | |
| 89 | |
| 90 void rotate_y(float *xyz, float r) | |
| 91 { | |
| 92 float rad = r*3.14/180; | |
| 93 | |
| 94 xyz[0] = xyz[0]*cos(rad) + xyz[2]*sin(rad); | |
| 95 xyz[1] = xyz[1]; | |
| 96 xyz[2] = -xyz[0]*sin(rad) + xyz[2]*cos(rad); | |
| 97 } | |
| 98 | |
| 99 void rotate_z(float *xyz, float r) | |
| 100 { | |
| 101 float rad = r*3.14/180; | |
| 102 | |
| 103 xyz[0] = xyz[0]*cos(rad) - xyz[1]*sin(rad); | |
| 104 xyz[1] = xyz[0]*sin(rad) + xyz[1]*cos(rad); | |
| 105 xyz[2] = xyz[2]; | |
| 106 } | |
| 107 | |
| 108 void rotate(float *xyz, float *matrix) | |
| 109 { | |
| 110 float abc[4]; | |
| 111 abc[0] = xyz[0]; | |
| 112 abc[1] = xyz[1]; | |
| 113 abc[2] = xyz[2]; | |
| 114 abc[3] = xyz[3]; | |
| 115 | |
| 116 for(int i=0; i<4; i++) | |
| 117 { | |
| 118 //xyz[i] = abc[0]*rot[i] + abc[1]*rot[i+4] + abc[2]*rot[i+8] + abc[3]*rot[i+12]; | |
| 119 xyz[i] = abc[0]*matrix[i] + abc[1]*matrix[i+4] + abc[2]*matrix[i+8] + abc[3]*matrix[i+12]; | |
| 120 } | |
| 121 } | |
| 122 | |
| 123 | |
| 124 void translate(float *xyz, float x, float y, float z) | |
| 125 { | |
| 126 xyz[0] += x; | |
| 127 xyz[1] += y; | |
| 128 xyz[2] += z; | |
| 129 } |