เขียนโปรแกรม ภาพ 3d ค่ะใช้ภาษา c++
ตอนปรับมุมมองด้วย วิธีเปลี่ยนตัวเลข ใน lookAt โดยตรงก็ไม่มีปัญหานะคะ
แต่พอเพิ่มฟังก์ชันให้หมุนมุมกล้อง ด้วยการกดปุ่มคีย์บอด ขึ้น ลง ซ้ายขวา วัตถุ เลื่อน มาทับกันบ้าง เลื่อนลงไปข้างล่างพื้นห้องบ้าง

เละเทะเลยค่ะ T_T ตอนแรกที่ไม่ได้หมุนก็ปกติดี
บางทีไม่ต้องหมุนมุมกล้องก็เละค่ะ ถ้าไปคลิกที่บนวินโดว แล้วเลื่อนไปมา ๆ ซักพัก ของจะเละ T_T

เป็นโปรเจคส่งครู ช่วยหน่อยนะคะ นี่โค้ด

#include<GL\glut.h>
float xx = 3,yy = 1,zz = 4;
void color(float rd,float gd,float bd,float ad,float ra,float ga,float ba,float sh)
{
    GLfloat mat_diffuse[] = {rd,gd,bd,ad};
    GLfloat mat_specular[] = {1.0f,1.0f,1.0f,1.0f};
    GLfloat mat_ambient[] = {ra,ga,ba,1.0f};
    GLfloat mat_shininess[] = {sh};

    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,mat_shininess);
}

void roundChair()
{

    //rounded chair

    GLUquadricObj *theObj;
    theObj = gluNewQuadric();
    gluQuadricDrawStyle(theObj,GLU_FILL);

    //top
    glPushMatrix();
    glTranslated(0.3,0.45,0.2);
    glRotated(90,1,0,0);
    gluCylinder(theObj,0.21,0.21,0.025,30,30);
    glPopMatrix();


    //close top
    glPushMatrix();
    glTranslated(0.3,0.45,0.2);
    glScaled(1,0.1,1);
    glutSolidSphere(0.21,30,30);
    glPopMatrix();

    //leg
    glPushMatrix();
    glTranslated(0.3,0.45,0.2);
    glRotated(90,1,0,0);
    gluCylinder(theObj,0.02,0.02,0.5,30,30);
    glPopMatrix();

    gluDeleteQuadric(theObj);
}



void wall(double thickness)
{
    glPushMatrix();
    glTranslated(0.5,0.5*thickness,0.5);
    glScaled(1.5,thickness,1.5);
    glutSolidCube(1);
    glPopMatrix();
}


void slot(int rS,int gS,int bS,int rC,int gC,int bC)
{
    ////slot machine

    color(rS,gS,bS,1,0,0,0,10);
    GLUquadricObj *theObj;
    theObj = gluNewQuadric();
    gluQuadricDrawStyle(theObj,GLU_FILL);

    //cylinder and close end
    glPushMatrix();
    glTranslated(0,-.53,0);

        
        glPushMatrix();
        glScaled(1,.7,.7);
        glTranslated(-0.004,.85,-.05);
            
            color(1, 1, 0,1,0,0,0,200);

            glPushMatrix();
            glTranslated(0.3,2,0.2);
            glRotated(90,0,1,0);
            gluCylinder(theObj,0.31,0.31,0.15,30,30);
            glPopMatrix();

            color(1, 0.501, 0.752,1,0,0,0,200);
            
            glPushMatrix();
            glTranslated(0.5,2,0.2);
            glRotated(90,0,1,0);
            gluCylinder(theObj,0.31,0.31,0.15,30,30);
            glPopMatrix();

            color(0.909, 0.313, 0.141,1,0,0,0,200);

            glPushMatrix();
            glTranslated(0.7,2,0.2);
            glRotated(90,0,1,0);
            gluCylinder(theObj,0.31,0.31,0.15,30,30);
            glPopMatrix();

            //lid cylinder
    
            glPushMatrix();    
            glTranslated(0.85,2,0.2);
            glRotated(90,0,0,1);
            glScaled(1,0.1,1);
            gluSphere(theObj,0.31,31,30);
            glPopMatrix();

            glPushMatrix();
            glTranslated(0.3,2,0.2);
            glRotated(90,0,0,1);
            glScaled(1,0.1,1);
            gluSphere(theObj,0.31,31,30);
            glPopMatrix();

        glPopMatrix();
    
        color(rS,gS,bS,1,1,1,0,100);
        //upper cube

        glPushMatrix();
        glTranslated(0.57,1.6,0.11);
        glScaled(1,0.5,.7);
        glutSolidCube(.62);
        glPopMatrix();

        //lower cube

        glPushMatrix();
        glTranslated(0.57,1,0.2);
        glScaled(1,1.5,1);
        glutSolidCube(.62);
        glPopMatrix();

        

        //intervention

        glPushMatrix();
        glTranslated(0.29,2,0.11);
        glScaled(.1,1,.7);
        glutSolidCube(.62);
        glPopMatrix();

        glPushMatrix();
        glTranslated(0.476,2,0.11);
        glScaled(.1,1,.7);
        glutSolidCube(.62);
        glPopMatrix();

        glPushMatrix();
        glTranslated(0.662,2,0.11);
        glScaled(.1,1,.7);
        glutSolidCube(.62);
        glPopMatrix();

        glPushMatrix();
        glTranslated(0.85,2,0.11);
        glScaled(.1,1,.7);
        glutSolidCube(.62);
        glPopMatrix();

        //surface lid

        glEnable(GL_BLEND);
        glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
        color(0, 1, 1,.25,1,1,1,500);

        glPushMatrix();
        glTranslated(.58,2,0.35);
        glScaled(1,.8,.05);
        glutSolidCube(.62);
        glPopMatrix();

        //beyond lid

        color(rS,gS,bS,1,1,1,0,100);

        glPushMatrix();
        glTranslated(0.57,2.3,0.09);
        glScaled(1,.2,1);
        glutSolidCube(.62);
        glPopMatrix();


        color(1, 0, 1,1,0,0,0,5);
        //button

        glPushMatrix();
        glTranslated(0.78,1.45,0.42);
        glutSolidCube(.08);
        glPopMatrix();

        color(0.501, 1, 0.501,1,0,0,0,5);

        glPushMatrix();
        glTranslated(0.58,1.45,0.42);
        glutSolidCube(.08);
        glPopMatrix();

        color(0, 0, 1,1,0,0,0,5);

        glPushMatrix();
        glTranslated(0.38,1.45,0.42);
        glutSolidCube(.08);
        glPopMatrix();

        //side bar

        color(0, 0, 0,1,0,0,0,5);

        glPushMatrix();
            glTranslated(.88,1.6,0.2);
            glRotated(90,0,1,0);
            gluCylinder(theObj,0.1,0.1,0.05,30,30);
        glPopMatrix();

        glPushMatrix();    
            glTranslated(.93,1.6,0.2);
            glRotated(90,0,0,1);
            glScaled(1,0.3,1);
            gluSphere(theObj,0.1,31,30);
        glPopMatrix();

        glPushMatrix();
            glTranslated(.95,1.6,0.2);
            glRotated(250,1,0,0);
            gluCylinder(theObj,0.03,0.03,0.5,30,30);
        glPopMatrix();

        glPushMatrix();    
            glTranslated(0.95,2.11,0.03);
            gluSphere(theObj,0.05,31,30);
        glPopMatrix();

        color(0, 0, 0,1,0,0,0,200);
        //drawer
        glPushMatrix();
            glRotated(-10,1,0,0);
            glTranslated(.58,1,0.75);
            glScaled(1,.8,.05);
            glutSolidCube(.62);
        glPopMatrix();

        color(rC,gC,bC,1,0,0,0,200);

        glPushMatrix();
            glScaled(1.5,1.5,1.5);
            glTranslated(0.09,.4,0.5);
            roundChair();
        glPopMatrix();
        gluDeleteQuadric(theObj);

}
//end slot