複習上禮拜的程式碼
#include <GL/glut.h> void display(){ glClearColor( 1,0,0,0);///用來Clear的Color 用紅色 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glColor3f( 1,1,0 ); glutSolidTeapot( 0.3 ); glutSwapBuffers(); } int main( int argc, char ** argv ) { glutInit( &argc, argv); glutInitWindowSize(500,500); glutInitWindowPosition(700,200); glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH); glutCreateWindow("week17 review"); glutDisplayFunc(display); glutMainLoop(); }
接下來加入打光效果
#include <GL/glut.h>
void display(){
glClearColor( 1,0,0,0);///用來Clear的Color 用紅色
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f( 1,1,0 );
glutSolidTeapot( 0.3 );
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 };
int main( int argc, char ** argv )
{
glutInit( &argc, argv);
glutInitWindowSize(500,500);
glutInitWindowPosition(700,200);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
glutCreateWindow("week17 review");
glutDisplayFunc(display);
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();
}
接下來我們加入T-R-T
#include <GL/glut.h>
float angle=90;
float oldX=0;
void mouse(int button, int state, int x, int y){
oldX = x;
}
void motion( int x, int y ){
angle += x-oldX;
oldX = x;
glutPostRedisplay();///重畫畫面
}
void display(){
glClearColor( 1,0,0,0);///用來Clear的Color 用紅色
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glColor3f( 1,1,0 );
glutSolidTeapot( 0.3 );///身體先註解掉身體,只看手臂
glPushMatrix();
glTranslatef(-.3, 0, 0);///(3)再把轉動中的手臂,掛到肩上
glRotatef(angle, 0,0,1);///(2)再轉動它
glTranslatef(-.3, .1, 0);///(1)移動旋轉中心,放正中心
glutSolidTeapot(0.3);///左手臂
glPopMatrix();
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 };
int main( int argc, char ** argv )
{
glutInit( &argc, argv);
glutInitWindowSize(500,500);
glutInitWindowPosition(700,200);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
glutCreateWindow("week17 review");
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutDisplayFunc(display);
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();
}
在接下來我們要利用keyboard來實現關節的旋轉，將每個關節加入angle ID
#include <GL/glut.h>
float oldX=0;
float angle[20]={};///先都設成0
int angleID=0;///現在要動的關節是誰?
void keyboard(unsigned char key, int x, int y){
if(key=='0') angleID=0;
if(key=='1') angleID=1;
if(key=='2') angleID=2;
if(key=='3') angleID=3;
if(key=='4') angleID=4;
if(key=='5') angleID=5;
if(key=='6') angleID=6;
}
void mouse(int button, int state, int x, int y){
oldX = x;
}
void motion( int x, int y ){
angle[angleID] += x-oldX;///0: angle[0], 1: angle[1]..
oldX = x;
glutPostRedisplay();///重畫畫面
}
void display(){
glClearColor( 1,0,0,0);///用來Clear的Color 用紅色
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glColor3f( 1,1,0 );
glutSolidTeapot( 0.3 );///身體先註解掉身體,只看手臂
glPushMatrix();///左半邊
glTranslatef(-.3, 0, 0);///(3)再把轉動中的手臂,掛到肩上
glRotatef(angle[0], 0,0,1);///(2)再轉動它
glTranslatef(-.3, .1, 0);///(1)移動旋轉中心,放正中心
glutSolidTeapot(0.3);///左手臂
glPushMatrix();
glTranslatef(-.3, 0, 0);///(3)再把轉動中的手臂,掛到肩上
glRotatef(angle[1], 0,0,1);///(2)再轉動它
glTranslatef(-.3, 0, 0);///(1)移動旋轉中心,放正中心
glutSolidTeapot(0.3);///左手肘
glPopMatrix();
glPopMatrix();
glPushMatrix();///右半邊
glTranslatef(+.3, 0, 0);///(3)再把轉動中的手臂,掛到肩上
glRotatef(angle[2], 0,0,1);///(2)再轉動它
glTranslatef(+.3, .1, 0);///(1)移動旋轉中心,放正中心
glutSolidTeapot(0.3);///右手臂
glPushMatrix();
glTranslatef(+.3, 0, 0);///(3)再把轉動中的手臂,掛到肩上
glRotatef(angle[3], 0,0,1);///(2)再轉動它
glTranslatef(+.3, 0, 0);///(1)移動旋轉中心,放正中心
glutSolidTeapot(0.3);///右手肘
glPopMatrix();
glPopMatrix();
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 };
int main( int argc, char ** argv )
{
glutInit( &argc, argv);
glutInitWindowSize(500,500);
glutInitWindowPosition(700,200);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
glutCreateWindow("week17 review");
glutKeyboardFunc(keyboard);///要有這行, 註冊 keyboard()
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutDisplayFunc(display);
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();
}
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