glPushMatrix( );// 備份矩陣 10%
glRotatef(angle,x,y,z);// 旋轉30%
glTranslatef(x,y,z);// 縮放40%
glBegin(GL_POLYGON);// 開始畫60%
glNormal3f(nx,ny,nz);// 打光的法向量90%
glTexCoord2f(tx,ty);//貼圖座標100%
課堂作業二 : 階層轉動
程式碼
#include <GL/glut.h>
float mouseX=0;
void display()
{
glClear(GL_COLOR_BUFFER_BIT |GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glutSolidTeapot(0.3);
glPushMatrix();
glRotatef(mouseX, 0,0,1);
glTranslatef(0.5, 0,0);
glutSolidTeapot(0.3);
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
void motion(int x, int y)
{
mouseX = x;
glutPostRedisplay();
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_RGB|GLUT_DOUBLE|GLUT_DEPTH);
glutCreateWindow("TRT robot");
glutDisplayFunc(display);
glutMotionFunc(motion);
glutMainLoop();
}
課堂作業三: T-R-T
課堂作業四: 矩陣
程式碼
#include <GL/glut.h>
float mouseX=0;
void display()
{
glClear(GL_COLOR_BUFFER_BIT |GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glRotatef(mouseX, 0,0,1);
glColor3f(1,0,0); glutSolidTeapot(0.3);
glPushMatrix();
glTranslatef(0.5,0.14,0);
glRotatef(mouseX, 0,0,1);
glTranslatef(0.41,-0.05,0);
glColor3f(1,1,1); glutSolidTeapot(0.3);
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
void motion(int x, int y)
{
mouseX = x;
glutPostRedisplay();
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_RGB|GLUT_DOUBLE|GLUT_DEPTH);
glutCreateWindow("TRT robot");
glutDisplayFunc(display);
glutMotionFunc(motion);
glutMainLoop();
}
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