Develop
2003.04.23 10:55
[c] OpenGL 색 입방체의 회전(입체)
Views 7897 Comment 0
p.158 ~ p.170, (소스 파일 p. 602)
#include<stdlib.h>
#include<GL/glut.h>
GLfloat vertices[][3] = {
{-1.0, -1.0, -1.0}, {1.0, -1.0, -1.0},
{1.0, 1.0, -1.0}, {-1.0, 1.0, -1.0}, {-1.0, -1.0, 1.0},
{1.0, -1.0, 1.0}, {1.0, 1.0, 1.0}, {-1.0, 1.0, 1.0}
};
GLfloat normals[][3] = {
{-1.0, -1.0, -1.0}, {1.0, -1.0, -1.0},
{1.0, 1.0, -1.0}, {-1.0, 1.0, -1.0}, {-1.0, -1.0, 1.0},
{1.0, -1.0, 1.0}, {1.0, 1.0, 1.0}, {-1.0, 1.0, 1.0}
};
GLfloat colors[][3] = {
{0.0, 0.0, 0.0}, {1.0, 0.0, 0.0},
{1.0, 1.0, 0.0}, {0.0, 1.1, 0.0}, {0.0, 0.0, 1.0},
{1.0, 0.0, 1.0}, {1.0, 1.0, 1.0}, {0.0, 1.0, 1.0}
};
void polygon(int a, int b, int c, int d){
glBegin(GL_POLYGON);
glColor3fv(colors[a]);
glNormal3fv(normals[a]);
glVertex3fv(vertices[a]);
glColor3fv(colors[b]);
glNormal3fv(normals[b]);
glVertex3fv(vertices[b]);
glColor3fv(colors[c]);
glNormal3fv(normals[c]);
glVertex3fv(vertices[c]);
glColor3fv(colors[d]);
glNormal3fv(normals[d]);
glVertex3fv(vertices[d]);
glEnd();
}
void colorcube(void){
polygon(0, 3, 2, 1);
polygon(2, 3, 7, 6);
polygon(0, 4, 7, 3);
polygon(1, 2, 6, 5);
polygon(4, 5, 6, 7);
polygon(0, 1, 5, 4);
}
static GLfloat theta[] = {0.0, 0.0, 0.0};
static GLint axis = 2;
void display(void){
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
glRotatef(theta[0], 1.0, 0.0, 0.0);
glRotatef(theta[1], 0.0, 1.0, 0.0);
glRotatef(theta[2], 0.0, 0.0, 1.0);
colorcube();
glFlush();
glutSwapBuffers();
}
void spinCube(){
theta[axis] += 2.0;
if(theta[axis]>360.0) theta[axis] -= 360.0;
glutPostRedisplay();
}
void mouse(int btn, int state, int x, int y){
if(btn==GLUT_LEFT_BUTTON && state==GLUT_DOWN) axis = 0;
if(btn==GLUT_MIDDLE_BUTTON && state==GLUT_DOWN) axis = 1;
if(btn==GLUT_RIGHT_BUTTON && state==GLUT_DOWN) axis = 2;
}
void myReshape(int w, int h){
glViewport(0, 0, w, h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
if(w<=h)
glOrtho(-2.0, 2.0, -2.0 * (GLfloat)h / (GLfloat)w, 2.0 * (GLfloat)h / (GLfloat)w, -10.0, 10.0);
else
glOrtho(-2.0 * (GLfloat)w / (GLfloat)h, 2.0 * (GLfloat)w / (GLfloat)h, -2.0, 2.0, -10.0, 10.0);
glMatrixMode(GL_MODELVIEW);
}
void main(int argc, char **argv){
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
glutInitWindowSize(500, 500);
glutCreateWindow("colorcube");
glutReshapeFunc(myReshape);
glutDisplayFunc(display);
glutIdleFunc(spinCube);
glutMouseFunc(mouse);
glEnable(GL_DEPTH_TEST);
glutMainLoop();
}
No. | Category | Subject | Author | Date | Views |
---|---|---|---|---|---|
645 | Etc | 스마트폰 보안 해외 발생 사례~ | hooni | 2013.04.23 | 25009 |
644 | Develop | [doc] Json Framework 설치와 사용 | hooni | 2013.04.23 | 21959 |
643 | Develop | [ios] 아이폰용 앱 오픈 소스들 | hooni | 2013.04.23 | 469403 |
642 | Develop | [android] 개발 환경 세팅 따라하기 ㅋㅋ | hooni | 2013.04.23 | 40461 |
641 | Develop | [android] 디바이스(시뮬레이터) hosts 파일 수정하기 | hooni | 2013.04.23 | 31129 |
640 | Develop | [java] 입출력 스트림 3부 (오브젝트) | hooni | 2013.04.23 | 17179 |
639 | Develop | [java] 입출력 스트림 2부 (바이트) | hooni | 2013.04.23 | 10314 |
638 | Develop | [java] 입출력 스트림 1부 (문자) | hooni | 2013.04.23 | 15353 |
637 | Develop | [android] Canvas를 이용해 이미지 확대/축소 하기 | hooni | 2013.04.23 | 60794 |
636 | Develop | [android] SurfaceView를 이용한 애니메이션 ㅎㅎ | hooni | 2013.04.23 | 57774 |
635 | System/OS | [mac] 맥에서 APM(apache,php,mysql) 구성하기 | hooni | 2013.04.23 | 38830 |
634 | System/OS | [mac] 맥(OSX)에서 root 패스워드 설정하기 | hooni | 2013.04.23 | 22629 |