OpenGL绘制茶壶实体模型,设置简化光照模型,设置黄铜材质,鼠标移动控制茶壶旋转

好的，下面是代码示例：

#include <GL/glut.h>

GLdouble teapotSize = 1.5;
GLfloat lightPosition[] = {0.0f, 5.0f, 5.0f, 1.0f};
GLfloat lightAmbient[] = {0.0f, 0.0f, 0.0f, 1.0f};
GLfloat lightDiffuse[] = {1.0f, 1.0f, 1.0f, 1.0f};
GLfloat lightSpecular[] = {1.0f, 1.0f, 1.0f, 1.0f};
GLfloat matAmbient[] = {0.329412f, 0.223529f, 0.027451f, 1.0f};
GLfloat matDiffuse[] = {0.780392f, 0.568627f, 0.113725f, 1.0f};
GLfloat matSpecular[] = {0.992157f, 0.941176f, 0.807843f, 1.0f};
GLfloat matShininess[] = {27.8974f};

int lastX, lastY;
bool rotate = false;

void init() {
    glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
    glShadeModel(GL_FLAT);
    glEnable(GL_DEPTH_TEST);
    glEnable(GL_LIGHTING);
    glEnable(GL_LIGHT0);

    glLightfv(GL_LIGHT0, GL_POSITION, lightPosition);
    glLightfv(GL_LIGHT0, GL_AMBIENT, lightAmbient);
    glLightfv(GL_LIGHT0, GL_DIFFUSE, lightDiffuse);
    glLightfv(GL_LIGHT0, GL_SPECULAR, lightSpecular);

    glMaterialfv(GL_FRONT, GL_AMBIENT, matAmbient);
    glMaterialfv(GL_FRONT, GL_DIFFUSE, matDiffuse);
    glMaterialfv(GL_FRONT, GL_SPECULAR, matSpecular);
    glMaterialfv(GL_FRONT, GL_SHININESS, matShininess);
}

void display() {
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glPushMatrix();
    glTranslatef(0.0f, -1.0f, 0.0f);
    glRotatef(-90.0f, 1.0f, 0.0f, 0.0f);
    if (rotate) {
        glRotatef((float) (glutGet(GLUT_ELAPSED_TIME) / 10.0), 0.0f, 1.0f, 0.0f);
    }
    glutSolidTeapot(teapotSize);
    glPopMatrix();
    glutSwapBuffers();
}

void reshape(int width, int height) {
    glViewport(0, 0, (GLsizei) width, (GLsizei) height);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
    gluPerspective(60.0, (GLfloat) width / (GLfloat) height, 1.0, 20.0);
    glMatrixMode(GL_MODELVIEW);
    glLoadIdentity();
    glTranslatef(0.0, 0.0, -5.0);
}

void mouse(int button, int state, int x, int y) {
    if (button == GLUT_LEFT_BUTTON && state == GLUT_DOWN) {
        lastX = x;
        lastY = y;
        rotate = true;
    } else if (button == GLUT_LEFT_BUTTON && state == GLUT_UP) {
        rotate = false;
    }
}

void motion(int x, int y) {
    if (rotate) {
        int deltaX = x - lastX;
        int deltaY = y - lastY;
        lastX = x;
        lastY = y;
        glRotatef(deltaX, 0.0, 1.0, 0.0);
        glRotatef(deltaY, 1.0, 0.0, 0.0);
        glutPostRedisplay();
    }
}

int main(int argc, char **argv) {
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
    glutInitWindowSize(800, 600);
    glutCreateWindow("Teapot");
    init();
    glutDisplayFunc(display);
    glutReshapeFunc(reshape);
    glutMouseFunc(mouse);
    glutMotionFunc(motion);
    glutMainLoop();
    return 0;
}

这段代码实现了使用 OpenGL 绘制茶壶实体模型，并设置简化光照模型和黄铜材质。同时，通过鼠标移动控制茶壶旋转。具体实现细节可以参考代码注释。