04162532_黃郁嵐,Week06

一.期中模擬考
glPushMatrix();//備份矩陣
glRotatef(angle,x,y,z);//旋轉
glTranslatef(x,y,z);//移動
glScalef(x,y,z);//縮放
glBegin(GL_POLYGON);//開始畫
glNormal3f(nx,ny,nz);//打光的法向量
glTexCoord2f(tx,ty);//貼圖座標
glColor3f(r,g,b);//顏色
glVertex3f(x,y,z);//頂點
glEnd();//結束畫
glPopMatrix();//還原矩陣

二.打光
1.file-new-project,GLUT

2.把freeglut解在桌面

3.修改程式碼
#include <GL/glut.h>
void display()
{
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glPushMatrix();
//glTranslatef(x,y,z);
//glRotatef(angl,x,y,z);
glutSolidTeapot(0.3);
glPopMatrix();
glutSwapBuffers();
}

4.執行結果

5.修改燈光位置

5.兩個茶壺其中一個旋轉，另一個不旋轉
程式碼:
#include <GL/glut.h>
float angle=0;
static void display()
{
angle++;
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glTranslatef(0,0.6,0);//讓其中一個茶壺上移
glRotatef(angle, 0,1,0);//讓茶壺旋轉

glutSolidTeapot(0.3);
glPopMatrix();

glPushMatrix();
glutSolidTeapot(0.3);
glPopMatrix();

glutSwapBuffers();
}
const GLfloat light_ambient[]  = { 0.0f, 0.0f, 0.0f, 1.0f };
const GLfloat light_diffuse[]  = { 1.0f, 1.0f, 1.0f, 1.0f };
const GLfloat light_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };
const GLfloat light_position[] = { 2.0f, 5.0f, -5.0f, 0.0f };

const GLfloat mat_ambient[]    = { 0.7f, 0.7f, 0.7f, 1.0f };
const GLfloat mat_diffuse[]    = { 0.8f, 0.8f, 0.8f, 1.0f };
const GLfloat mat_specular[]   = { 1.0f, 1.0f, 1.0f, 1.0f };
const GLfloat high_shininess[] = { 100.0f };

/* Program entry point */

int main(int argc, char *argv[])
{
    glutInit(&argc, argv);
    glutInitWindowSize(640,480);
    glutInitWindowPosition(10,10);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("GLUT Shapes");

    glutIdleFunc(display);
    glutDisplayFunc(display);


    glClearColor(1,1,1,1);
    glEnable(GL_CULL_FACE);
    glCullFace(GL_BACK);

    glEnable(GL_DEPTH_TEST);
    glDepthFunc(GL_LESS);

    glEnable(GL_LIGHT0);
    glEnable(GL_NORMALIZE);
    glEnable(GL_COLOR_MATERIAL);
    glEnable(GL_LIGHTING);

    glLightfv(GL_LIGHT0, GL_AMBIENT,  light_ambient);
    glLightfv(GL_LIGHT0, GL_DIFFUSE,  light_diffuse);
    glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular);
    glLightfv(GL_LIGHT0, GL_POSITION, light_position)
    glMaterialfv(GL_FRONT, GL_AMBIENT,   mat_ambient);
    glMaterialfv(GL_FRONT, GL_DIFFUSE,   mat_diffuse);
    glMaterialfv(GL_FRONT, GL_SPECULAR,  mat_specular);
    glMaterialfv(GL_FRONT, GL_SHININESS, high_shininess);

    glutMainLoop();

    return EXIT_SUCCESS;
}

結果:

6.新增一個方塊
glutSolidTeapot(大小);
glutSolidCube(大小);
glutSolidCone(底r,高h,slice,stack);
glutDedocahedron();
glutIcosahedron();
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