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這是是我作業二的程式 想請問是要加什麼 才能就是我老師所要的
謝謝
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修改你作業二的程式,使得螢幕視窗中顯示任意三個不同形狀的實體模型物件,請設定這些物件的 materials 屬性,使其顯示不同的顏色。
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#include
#include
#include
#include
#include

void MyTranslate(GLfloat x, GLfloat y, GLfloat z)
{
GLfloat m[] = {1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 1.0f, 0.0f, 0.0f,
0.0f, 0.0f, 1.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f };
glRotatef(85.0,1.0,0.0,0.0);

#define M(row, col) m[col*4+row]
M(0, 3) = x;
M(1, 3) = y;
M(2, 3) = z;
#undef M
glMultMatrixf(m);
}

void OnSize(int w, int h)
{
GLfloat fAspect;
glViewport(0, 0, w, h);

glMatrixMode(GL_PROJECTION);
glLoadIdentity();
fAspect = (GLfloat)w /(GLfloat)h;
gluPerspective(45.0f, fAspect, 1.0, 425.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}


void OnDraw(void)
{
glClear(GL_COLOR_BUFFER_BIT);
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);

glMatrixMode(GL_MODELVIEW);
glLoadIdentity();

gluLookAt(0.0f, 15.0f, 40.0f,
0.0f, 0.0f, 0.0f,
0.0f, 2.0f, 0.0f);
glColor3f(0.0, 1.0, 0.0);

glPushMatrix();

MyTranslate(-10, 0, 0);
glutWireCube (5.0f);


MyTranslate(20, 0, 0);
glutWireSphere (5.0f,10,10);


MyTranslate(-10, 1, -15);
glutWireCone (5.0f,8.0f,10,10);


glPopMatrix();
glFlush();
}

2007-01-13 19:12:49 · 2 個解答 · 發問者 小可愛 1 in 電腦與網際網路 程式設計

int main(int argc, char **argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
glutInitWindowSize(500,500);
glutCreateWindow("123456");

glutReshapeFunc(OnSize);
glutDisplayFunc(OnDraw);

glClearColor(0.0, 0.0, 0.0, 0.0 );

glutMainLoop();
return 0;
}

2007-01-13 19:47:43 · update #1

我全部的原始碼都PO上來了= =

2007-01-13 19:56:26 · update #2

2 個解答

我對 OpenGL 知道的也不是很多。但就我所知,要改的東西不少耶!而且,要改的部份,你都沒 post 上來!
在 Global Variable 裡,你要有
float ambient[] = {0.1, 0.1, 0.1, 1.0}; // 不一定是這些數值
float diffuse[] = {1.0, 1.0, 1.0, 0.5};
float light_pos[] = {0.0, 3.0, 0.0, 1.0};
float specular[] = {1.0, 1.0, 1.0, 0.5};
在 GL init 裡,你(可能)要有:(至少,position一定要)
glLightfv(GL_LIGHT0, GL_POSITION, light0_pos);
glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
glLightfv(GL_LIGHT0, GL_AMBIENT, ambient);
glLightfv(GL_LIGHT0, GL_SPECULAR, specular);
在 display 裡(或GL init 裡),你要有
glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE); // GL_FRONT也可,比較快
而你在畫每個 Obj 前,要對OpenGL說這東東的 diffuse, ambient, specular和 shineness。如:
glMaterialfv(GL_FRONT, GL_AMBIENT, Obj[i].getAmbient());
glMaterialfv(GL_FRONT, GL_DIFFUSE, Obj[i].getDiffuse());
glMaterialfv(GL_FRONT, GL_SPECULAR, Obj[i].getSpecular());
glMaterialfv(GL_FRONT, GL_SHININESS, mat);
加油!!^_^

2007-01-14 11:14:24 補充:
那你就把該加的加上吧!!
你沒設 Material,GL/ glut 都不可能會知道你的 material 要做啥處理

2007-01-13 19:43:58 · answer #1 · answered by ? 7 · 0 0

老師的ppt 中都有



by 同班

2007-01-15 12:50:24 · answer #2 · answered by Mingo Chung 1 · 0 0

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