Cubo de Colores OpenGL

Hola aquí les traigo la animación en OpenGL de cubo en rotacion y que cambie de color según va girando...espero que les ayude ;)

El código aqui...

/*

 * OGL02Animation.cpp: 3D Shapes with animation

 */

#include <windows.h>  // for MS Windows

#include <GL/glut.h>  // GLUT, include glu.h and gl.h

/* Global variables */

char title[] = "3D Shapes with animation";

//GLfloat anglePyramid = 0.0f;  // Rotational angle for pyramid [NEW]

GLfloat angleCube = 0.0f;     // Rotational angle for cube [NEW]

int refreshMills = 15;        // refresh interval in milliseconds [NEW]

/* Initialize OpenGL Graphics */

void initGL() {

   glClearColor(0.0f, 0.0f, 0.0f, 1.0f); // Set background color to black and opaque

   glClearDepth(1.0f);                   // Set background depth to farthest

   glEnable(GL_DEPTH_TEST);   // Enable depth testing for z-culling

   glDepthFunc(GL_LEQUAL);    // Set the type of depth-test

   glShadeModel(GL_SMOOTH);   // Enable smooth shading

   glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);  // Nice perspective corrections

}

/* Handler for window-repaint event. Called back when the window first appears and

   whenever the window needs to be re-painted. */

void display() {

   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear color and depth buffers

   glMatrixMode(GL_MODELVIEW);     // To operate on model-view matrix

   // Render a color-cube consisting of 6 quads with different colors

   glLoadIdentity();                 // Reset the model-view matrix

   glTranslatef(0.2f, 0.0f, -7.0f);  // Move right and into the screen

   glRotatef(angleCube, 1.0f, 1.0f, 1.0f);  // Rotate about (1,1,1)-axis [NEW]

   glBegin(GL_QUADS);                // Begin drawing the color cube with 6 quads

      // Top face (y = 1.0f)

      // Define vertices in counter-clockwise (CCW) order with normal pointing out

      glColor3f(0.0f, 1.0f, 0.0f);     // Green

      glVertex3f( 1.0f, 1.0f, -1.0f);

      glVertex3f(-1.0f, 1.0f, -1.0f);

      glVertex3f(-1.0f, 1.0f,  1.0f);

      glVertex3f( 1.0f, 1.0f,  1.0f);

      // Bottom face (y = -1.0f)

      glColor3f(1.0f, 0.5f, 0.0f);     // Orange

      glVertex3f( 1.0f, -1.0f,  1.0f);

      glVertex3f(-1.0f, -1.0f,  1.0f);

      glVertex3f(-1.0f, -1.0f, -1.0f);

      glVertex3f( 1.0f, -1.0f, -1.0f);

      // Front face  (z = 1.0f)

      glColor3f(1.0f, 0.0f, 0.0f);     // Red

      glVertex3f( 1.0f,  1.0f, 1.0f);

      glVertex3f(-1.0f,  1.0f, 1.0f);

      glVertex3f(-1.0f, -1.0f, 1.0f);

      glVertex3f( 1.0f, -1.0f, 1.0f);

      // Back face (z = -1.0f)

      glColor3f(1.0f, 1.0f, 0.0f);     // Yellow

      glVertex3f( 1.0f, -1.0f, -1.0f);

      glVertex3f(-1.0f, -1.0f, -1.0f);

      glVertex3f(-1.0f,  1.0f, -1.0f);

      glVertex3f( 1.0f,  1.0f, -1.0f);

      // Left face (x = -1.0f)

      glColor3f(0.0f, 0.0f, 1.0f);     // Blue

      glVertex3f(-1.0f,  1.0f,  1.0f);

      glVertex3f(-1.0f,  1.0f, -1.0f);

      glVertex3f(-1.0f, -1.0f, -1.0f);

      glVertex3f(-1.0f, -1.0f,  1.0f);

      // Right face (x = 1.0f)

      glColor3f(1.0f, 0.0f, 1.0f);     // Magenta

      glVertex3f(1.0f,  1.0f, -1.0f);

      glVertex3f(1.0f,  1.0f,  1.0f);

      glVertex3f(1.0f, -1.0f,  1.0f);

      glVertex3f(1.0f, -1.0f, -1.0f);

   glEnd();  // End of drawing color-cube

   // Render a pyramid consists of 4 triangles

   glLoadIdentity();                  // Reset the model-view matrix

   glTranslatef(-1.5f, 0.0f, -6.0f);  // Move left and into the screen

//   glRotatef(anglePyramid, 1.0f, 1.0f, 0.0f);  // Rotate about the (1,1,0)-axis [NEW]

   glutSwapBuffers();  // Swap the front and back frame buffers (double buffering)

   // Update the rotational angle after each refresh [NEW]

//   anglePyramid += 0.2f;

   angleCube -= 0.15f;

}

/* Called back when timer expired [NEW] */

void timer(int value) {

   glutPostRedisplay();      // Post re-paint request to activate display()

   glutTimerFunc(refreshMills, timer, 0); // next timer call milliseconds later

}

/* Handler for window re-size event. Called back when the window first appears and

   whenever the window is re-sized with its new width and height */

void reshape(GLsizei width, GLsizei height) {  // GLsizei for non-negative integer

   // Compute aspect ratio of the new window

   if (height == 0) height = 1;                // To prevent divide by 0

   GLfloat aspect = (GLfloat)width / (GLfloat)height;

   // Set the viewport to cover the new window

   glViewport(0, 0, width, height);

   // Set the aspect ratio of the clipping volume to match the viewport

   glMatrixMode(GL_PROJECTION);  // To operate on the Projection matrix

   glLoadIdentity();             // Reset

   // Enable perspective projection with fovy, aspect, zNear and zFar

   gluPerspective(45.0f, aspect, 0.1f, 100.0f);

}

/* Main function: GLUT runs as a console application starting at main() */

int main(int argc, char** argv) {

   glutInit(&argc, argv);            // Initialize GLUT

   glutInitDisplayMode(GLUT_DOUBLE); // Enable double buffered mode

   glutInitWindowSize(1040, 580);   // Set the window's initial width & height

   glutInitWindowPosition(50, 50); // Position the window's initial top-left corner

   glutCreateWindow(title);          // Create window with the given title

   glutDisplayFunc(display);       // Register callback handler for window re-paint event

   glutReshapeFunc(reshape);       // Register callback handler for window re-size event

   initGL();                       // Our own OpenGL initialization

   glutTimerFunc(0, timer, 0);     // First timer call immediately [NEW]

   glutMainLoop();                 // Enter the infinite event-processing loop

   return 0;

}