Source code ¶
주석은 차후에 다시
#include <gl\freeglut.h>
void Line()
{
glLineWidth(5);
glColor3f(0, 0, 0);
glBegin(GL_LINES);
glVertex2f(-1.0, 1.0);
glVertex2f(1.0, -1.0);
glEnd();
}
void Square()
{
glColor3f(1, 0, 0);
glBegin(GL_LINE_LOOP);
glVertex2f(-0.7, 0.7);
glVertex2f(-0.7, 0.2);
glVertex2f(-0.2, 0.2);
glVertex2f(-0.2, 0.7);
glEnd();
}
void display()
{
glClearColor(1, 1, 1, 1);
glClear(GL_COLOR_BUFFER_BIT);
Line();
Square();
glFlush();
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
glutInitWindowSize(600, 600);
glutInitWindowPosition(200, 200);
glutCreateWindow("Homework0_1");
glutDisplayFunc(display);
glutMainLoop();
return 0;
}
#include <gl\freeglut.h>
#include <diging.h>
float speed = 0;
void Rec(float locationX, float locationY, float size)
{
vec2 rec[4] = { { -size + locationX, size + locationY }, { size + locationX, size + locationY },
{ size + locationX, -size + locationY }, { -size + locationX, -size + locationY } };
glBegin(GL_QUADS);
for (int i = 0; i < 4;i++)
glVertex2fv(rec[i]);
glEnd();
}
void idle()
{
speed += 0.0005;
glutPostRedisplay();
}
void display()
{
glClearColor(0.5, 0.5, 0.5, 0.5);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
mat4 m(1.0);
glMatrixMode(GL_MODELVIEW);
glLoadMatrixf(matrix_to_float(m));
m *= Translate(speed, 0.0, 0.0);
glPushMatrix();
glLoadMatrixf(matrix_to_float(m));
glColor3f(1, 1, 1);
Rec(-1.0, 0.2, 0.2);
m *= Translate(speed, 0.0, 0.0);
glPushMatrix();
glLoadMatrixf(matrix_to_float(m));
glColor3f(0, 0, 0);
Rec(-1.0, -0.2, 0.2);
glutSwapBuffers();
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB);
glutInitWindowPosition(200, 200);
glutInitWindowSize(600, 600);
glutCreateWindow("Homework2-1");
glutIdleFunc(idle);
glutDisplayFunc(display);
glutMainLoop();
return 0;
}
#include <gl\freeglut.h>
#include <math.h>
#define Round 0.2
#define PI 3.145926
#define radi2theta(x) x*PI/180.0
void cycle(float x, float y, float r, float g, float b)
{
float dx = 0, dy = 0;
glColor3f(r, g, b);
glBegin(GL_POLYGON);
for (float i = 0; i < 360; i += 0.01)
{
dx = Round*cos(radi2theta(i));
dy = Round*sin(radi2theta(i));
glVertex2f(x + dx, y + dy);
}
glEnd();
}
void display()
{
glClearColor(1.0, 1.0, 1.0, 1.0);
glClear(GL_COLOR_BUFFER_BIT);
cycle(-0.7, 0.7, 1, 0, 0);
cycle(-0.25, 0.7, 0, 1, 0);
cycle(0.2, 0.7, 0, 0, 1);
glFlush();
}
int main(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
glutInitWindowSize(600, 600);
glutInitWindowPosition(200, 200);
glutCreateWindow("Homework0_3");
glutDisplayFunc(display);
glutMainLoop();
return 0;
}
