Today, we delve into the captivating world of OpenGL programming, a cornerstone in the realm of computer graphics. Whether you're a seasoned developer seeking to enhance your skills or a student grappling with OpenGL assignments, fret not, for we're here to guide you through the intricacies with expertise and finesse. If you find yourself grappling with OpenGL programming assignments, fear not, for our expert team at https://www.programminghom... is here to provide comprehensive OpenGL programming assignment help, ensuring your success in every endeavor.

Question 1: Implementing a Rotating Cube

Your task is to create a program in OpenGL that displays a rotating cube. Ensure smooth animation and user interaction to control the rotation speed.

Solution:
#include

float angle = 0.0f;

void display() {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
glTranslatef(0.0f, 0.0f, -5.0f);
glRotatef(angle, 1.0f, 1.0f, 1.0f); // Rotation along all axes
glColor3f(1.0f, 0.0f, 0.0f); // Red color
glutWireCube(2.0f); // Draw wireframe cube
glutSwapBuffers();
}

void update(int value) {
angle += 2.0f; // Increment angle for rotation
if (angle > 360) {
angle -= 360; // Reset angle
}
glutPostRedisplay();
glutTimerFunc(16, update, 0); // Update every 16 milliseconds for ~60 FPS
}

int main(int argc, char** argv) {
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
glutInitWindowSize(500, 500);
glutCreateWindow("Rotating Cube");
glEnable(GL_DEPTH_TEST);
glClearColor(0.0f, 0.0f, 0.0f, 1.0f); // Black background
glutDisplayFunc(display);
glutTimerFunc(16, update, 0);
glutMainLoop();
return 0;
}
In this solution, we utilize GLUT (OpenGL Utility Toolkit) to create a window and manage user input. The display() function handles rendering, while update() ensures smooth animation by updating the rotation angle periodically.