我只是一只可愛的麻雀（．＿．）Week06 筆記

去moodle 下載 week05 專案檔
記得把compiler設定一下(C++11取消勾選)


去 jsyeh.org/3dcg10/ 下載 data win32 glut32.dll 並且解壓縮(跟上週一樣)


↑記得要這樣丟檔案才能正常執行歐歐歐

順便把source也載下來 才有code!!


＊本週重點＊
鍵盤&滑鼠旋轉

#include <GL/glut.h>
#include "glm.h"
GLMmodel* pmodel = NULL;
GLfloat pos[] = { 0.0, 0.0, -1.0, 0.0 }; ///打光用的位置

int rotateX=0, rotateY=0, rotateZ=0;

void keyboard(unsigned char key, int x, int y)
{
    if(key=='1') rotateX+=5;
    if(key=='2') rotateY+=5;
    if(key=='3') rotateZ+=5;  ///按鍵盤上面123可以旋轉
    glutPostRedisplay(); ///貼標籤, 請電腦有空時把畫面重新Re-display
}
float oldX=0,oldY=0,oldZ=0;
void mouse(int button, int state, int x, int y)
{
    if(state==GLUT_DOWN)
    {
        oldX=x;
        oldY=y;
    }
}
void motion(int x, int y)
{
    rotateY += -(x-oldX);
    rotateX += -(y-oldY);
    oldX=x;
    oldY=y;
    glutPostRedisplay();
}

void
drawmodel(void)
{
    if (!pmodel) {
pmodel = glmReadOBJ("data/al.obj");
if (!pmodel) exit(0);
glmUnitize(pmodel);
glmFacetNormals(pmodel);
glmVertexNormals(pmodel, 90.0);
    }

    glmDraw(pmodel, GLM_SMOOTH | GLM_MATERIAL);
}
void display()
{
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glPushMatrix();
           glRotatef(rotateX,1,0,0);
           glRotatef(rotateY,0,1,0);
           glRotatef(rotateZ,0,0,1);
           drawmodel();
    glPopMatrix();
    glutSwapBuffers();
}
int main(int argc, char**argv)
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH); ///3D深度測試 清depth buffer才可以正確繪圖
    glutCreateWindow("week05");
    glutDisplayFunc(display);
    glutMouseFunc(mouse);
    glutKeyboardFunc(keyboard);
    glutMotionFunc(motion); ///讓他動

    glEnable(GL_DEPTH_TEST); ///把3D深度測試打開
    glEnable(GL_LIGHT0); ///打開偷來打光的code
    glEnable(GL_LIGHTING); ///也是打開偷來打光的code
    glLightfv(GL_LIGHT0, GL_POSITION, pos); ///打光的位置




    glutMainLoop();
}