基本編08::まとめコード5
最終更新：
mikk_ni3_92 2009年08月23日(日) 15:06:54履歴
現在地 >> メニュー >> 基本編08 >> 基本編08::fastSolidTeapot >>基本編08::まとめコード5
問題
fastSolidTeapot関数を使ってティーポットを描画せよ。
答え
【メモ】
「fastSolidTeapot.h」などを作成して、
ファイルを分割した方が使いやすいかもしれない。
問題 
fastSolidTeapot関数を使ってティーポットを描画せよ。
答え
#include <GL/glut.h>
//--------- プロトタイプ宣言 -----------//
void display();
void reshape(int w, int h);
void timer(int value);
void DRAW_XYZ();
//------------ ティーポット描画用 ---------------//
/* Copyright NVIDIA Corporation, 1999. */
static int patchdata[][16] =
{
/* rim */
{102, 103, 104, 105, 4, 5, 6, 7, 8, 9, 10, 11,
12, 13, 14, 15},
/* body */
{12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23,
24, 25, 26, 27},
{24, 25, 26, 27, 29, 30, 31, 32, 33, 34, 35, 36,
37, 38, 39, 40},
/* lid */
{96, 96, 96, 96, 97, 98, 99, 100, 101, 101, 101,
101, 0, 1, 2, 3,},
{0, 1, 2, 3, 106, 107, 108, 109, 110, 111, 112,
113, 114, 115, 116, 117},
/* bottom */
{118, 118, 118, 118, 124, 122, 119, 121, 123, 126,
125, 120, 40, 39, 38, 37},
/* handle */
{41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52,
53, 54, 55, 56},
{53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64,
28, 65, 66, 67},
/* spout */
{68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
80, 81, 82, 83},
{80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91,
92, 93, 94, 95}
};
static float cpdata[][3] =
{
{0.2, 0, 2.7}, {0.2, -0.112, 2.7}, {0.112, -0.2, 2.7}, {0,
-0.2, 2.7}, {1.3375, 0, 2.53125}, {1.3375, -0.749, 2.53125},
{0.749, -1.3375, 2.53125}, {0, -1.3375, 2.53125}, {1.4375,
0, 2.53125}, {1.4375, -0.805, 2.53125}, {0.805, -1.4375,
2.53125}, {0, -1.4375, 2.53125}, {1.5, 0, 2.4}, {1.5, -0.84,
2.4}, {0.84, -1.5, 2.4}, {0, -1.5, 2.4}, {1.75, 0, 1.875},
{1.75, -0.98, 1.875}, {0.98, -1.75, 1.875}, {0, -1.75,
1.875}, {2, 0, 1.35}, {2, -1.12, 1.35}, {1.12, -2, 1.35},
{0, -2, 1.35}, {2, 0, 0.9}, {2, -1.12, 0.9}, {1.12, -2,
0.9}, {0, -2, 0.9}, {-2, 0, 0.9}, {2, 0, 0.45}, {2, -1.12,
0.45}, {1.12, -2, 0.45}, {0, -2, 0.45}, {1.5, 0, 0.225},
{1.5, -0.84, 0.225}, {0.84, -1.5, 0.225}, {0, -1.5, 0.225},
{1.5, 0, 0.15}, {1.5, -0.84, 0.15}, {0.84, -1.5, 0.15}, {0,
-1.5, 0.15}, {-1.6, 0, 2.025}, {-1.6, -0.3, 2.025}, {-1.5,
-0.3, 2.25}, {-1.5, 0, 2.25}, {-2.3, 0, 2.025}, {-2.3, -0.3,
2.025}, {-2.5, -0.3, 2.25}, {-2.5, 0, 2.25}, {-2.7, 0,
2.025}, {-2.7, -0.3, 2.025}, {-3, -0.3, 2.25}, {-3, 0,
2.25}, {-2.7, 0, 1.8}, {-2.7, -0.3, 1.8}, {-3, -0.3, 1.8},
{-3, 0, 1.8}, {-2.7, 0, 1.575}, {-2.7, -0.3, 1.575}, {-3,
-0.3, 1.35}, {-3, 0, 1.35}, {-2.5, 0, 1.125}, {-2.5, -0.3,
1.125}, {-2.65, -0.3, 0.9375}, {-2.65, 0, 0.9375}, {-2,
-0.3, 0.9}, {-1.9, -0.3, 0.6}, {-1.9, 0, 0.6}, {1.7, 0,
1.425}, {1.7, -0.66, 1.425}, {1.7, -0.66, 0.6}, {1.7, 0,
0.6}, {2.6, 0, 1.425}, {2.6, -0.66, 1.425}, {3.1, -0.66,
0.825}, {3.1, 0, 0.825}, {2.3, 0, 2.1}, {2.3, -0.25, 2.1},
{2.4, -0.25, 2.025}, {2.4, 0, 2.025}, {2.7, 0, 2.4}, {2.7,
-0.25, 2.4}, {3.3, -0.25, 2.4}, {3.3, 0, 2.4}, {2.8, 0,
2.475}, {2.8, -0.25, 2.475}, {3.525, -0.25, 2.49375},
{3.525, 0, 2.49375}, {2.9, 0, 2.475}, {2.9, -0.15, 2.475},
{3.45, -0.15, 2.5125}, {3.45, 0, 2.5125}, {2.8, 0, 2.4},
{2.8, -0.15, 2.4}, {3.2, -0.15, 2.4}, {3.2, 0, 2.4}, {0, 0,
3.15}, {0.8, 0, 3.15}, {0.8, -0.45, 3.15}, {0.45, -0.8,
3.15}, {0, -0.8, 3.15}, {0, 0, 2.85}, {1.4, 0, 2.4}, {1.4,
-0.784, 2.4}, {0.784, -1.4, 2.4}, {0, -1.4, 2.4}, {0.4, 0,
2.55}, {0.4, -0.224, 2.55}, {0.224, -0.4, 2.55}, {0, -0.4,
2.55}, {1.3, 0, 2.55}, {1.3, -0.728, 2.55}, {0.728, -1.3,
2.55}, {0, -1.3, 2.55}, {1.3, 0, 2.4}, {1.3, -0.728, 2.4},
{0.728, -1.3, 2.4}, {0, -1.3, 2.4}, {0, 0, 0}, {1.425,
-0.798, 0}, {1.5, 0, 0.075}, {1.425, 0, 0}, {0.798, -1.425,
0}, {0, -1.5, 0.075}, {0, -1.425, 0}, {1.5, -0.84, 0.075},
{0.84, -1.5, 0.075}
};
void fastSolidTeapot(GLint grid, GLdouble scale)
{
float p[4][4][3], q[4][4][3], r[4][4][3], s[4][4][3];
long i, j, k, l;
glEnable(GL_AUTO_NORMAL);
glEnable(GL_MAP2_VERTEX_3);
glRotatef(270.0, 1.0, 0.0, 0.0);
glScalef(0.5 * scale, 0.5 * scale, 0.5 * scale);
glTranslatef(0.0, 0.0, -1.5);
for (i = 0; i < 10; i++) {
for (j = 0; j < 4; j++) {
for (k = 0; k < 4; k++) {
for (l = 0; l < 3; l++) {
p[j][k][l] = cpdata[patchdata[i][j * 4 + k]][l];
q[j][k][l] = cpdata[patchdata[i][j * 4 + (3 - k)]][l];
if (l == 1)
q[j][k][l] *= -1.0;
if (i < 6)
{
r[j][k][l] = cpdata[patchdata[i][j * 4 + (3 - k)]][l];
if (l == 0)
r[j][k][l] *= -1.0;
s[j][k][l] = cpdata[patchdata[i][j * 4 + k]][l];
if (l == 0)
s[j][k][l] *= -1.0;
if (l == 1)
s[j][k][l] *= -1.0;
}
}
}
}
glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4,&p[0][0][0]);
glMapGrid2f(grid, 0.0, 1.0, grid, 0.0, 1.0);
glEvalMesh2(GL_FILL, 0, grid, 0, grid);
glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4,&q[0][0][0]);
glEvalMesh2(GL_FILL, 0, grid, 0, grid);
if (i < 6) {
glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4,&r[0][0][0]);
glEvalMesh2(GL_FILL, 0, grid, 0, grid);
glMap2f(GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 4,&s[0][0][0]);
glEvalMesh2(GL_FILL, 0, grid, 0, grid);
}
}
}
//------------- OpenGLの初期化 -------------//
void GLUT_CALL_FUNCs()
{
glutDisplayFunc(display);
glutReshapeFunc(reshape);
glutTimerFunc(0,timer,17);
}
void OtherMyInit()
{
glClearColor(1.0, 1.0, 1.0, 1.0);
glEnable(GL_DEPTH_TEST);
glEnable(GL_LIGHTING);//光源の有効化
glEnable(GL_LIGHT0);
glEnable(GL_NORMALIZE);
}
void GLUT_INITs(int *argcp, char **argv)
{
glutInit(argcp,argv);
glutInitDisplayMode(GLUT_RGBA| GLUT_DOUBLE | GLUT_DEPTH);
glutInitWindowSize(640,480);
glutCreateWindow("fastSolidTeapot");
GLUT_CALL_FUNCs();
OtherMyInit();
}
//-------------メイン関数-----------------//
int main(int argc, char **argv)
{
GLUT_INITs(&argc,argv);
glutMainLoop();
return 0;
}
//------------- ここから各種コールバック -----------------//
void display()
{
static float Light0Pos[]={-100.0, 100.0, 100.0,0}; //光源の位置
static int r = 0;
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
gluLookAt(3.0, 4.0, 5.0, 0,0,0, 0.0, 1.0, 0.0);
glPushMatrix();
glRotatef(static_cast<float>(r),0,1,0);
glLightfv(GL_LIGHT0, GL_POSITION, Light0Pos);
DRAW_XYZ();
fastSolidTeapot(10, 1);//ティーポット描画
glPopMatrix();
glutSwapBuffers();
if(++r > 360)
r = 0;
}
void reshape(int w, int h)
{
glViewport(0, 0, w, h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(30.0, (double)w / (double)h, 0.1, 1000.0);
glMatrixMode(GL_MODELVIEW);
}
void timer(int t)
{
glutPostRedisplay();
glutTimerFunc(t,timer,17); //タイマー関数
}
//------------ ここから各種関数 ---------------//
void DRAW_XYZ()
{
glDisable(GL_LIGHTING);//光源の有効化
glDisable(GL_LIGHT0);
glBegin(GL_LINES);
glColor3f(0,1,0);//x
glVertex2f(-100,0);
glVertex2f(100, 0);
glColor3f(1,0,0);//y
glVertex2f(0,0);
glVertex2f(0,100);
glColor3f(0,0,1);//z
glVertex3f(0,0,-100);
glVertex3f(0,0, 100);
glEnd();
glEnable(GL_LIGHTING);//光源の有効化
glEnable(GL_LIGHT0);
}
【メモ】
「fastSolidTeapot.h」などを作成して、
ファイルを分割した方が使いやすいかもしれない。
