Develop
2003.04.23 10:55
[c] OpenGL 색 입방체의 회전(입체)
조회 수 7897 댓글 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();
}
번호 | 분류 | 제목 | 글쓴이 | 날짜 | 조회 수 |
---|---|---|---|---|---|
1017 | System/OS | [linux] iptables 초간단 세팅 스크립트 | hooni | 2017.09.26 | 1397 |
1016 | Develop | [android] How can I place app icon on launcher home screen? | hooni | 2016.11.15 | 1403 |
1015 | System/OS | [linux] yum 업데이트 시 커널 제외하기 | hooni | 2014.09.11 | 1406 |
1014 | Develop | [ios] GPS 이용 상태 확인 | hooni | 2015.04.27 | 1413 |
1013 | Etc | 원어민이 매일 쓰는 일상표현 150개 | hooni | 2023.09.17 | 1430 |
1012 | Develop | [c] Mac OS 에 gmp(gmp.h) 라이브러리 설치 | hooni | 2016.10.03 | 1437 |
1011 | Develop | [js] URL 파싱하기 (jQuery 안쓰고) | hooni | 2017.12.14 | 1438 |
1010 | PPT | [ppt] 전자금융보안론 발표/설치 자료 | hooni | 2016.05.03 | 1444 |
1009 | Develop | macOS에 node, npm 설치하기 (homebrew) | hooni | 2021.11.06 | 1450 |
1008 | Develop | [php] 한글 문자열 자르기 (utf-8) | hooni | 2015.11.10 | 1453 |
1007 | Etc | ISMS 인증기준 – 정보보호대책 (시스템개발보안) | hooni | 2016.12.01 | 1453 |
1006 | System/OS | [mac] Mac OS 패키지 매니저, HomeBrew | hooni | 2015.01.03 | 1454 |