Sistemul Solar cu Umbre

#include <glos.h>
#include <gl/gl.h>
#include <gl/glu.h>
#include <GL/glut.h>
#include <gl/glaux.h>
#include <conio.h>


void CALLBACK display(void);
void CALLBACK myReshape(GLsizei w, GLsizei h);

double v;

void CALLBACK display(void)
{

	GLfloat materialEmission[] = { 0.1f,0.1f,0.1f, 0.8f };
	GLfloat materialColor[] = { 1.0f, 1.0f, 1.0f, 1.0f };
	GLfloat materialSpecular[] = { 0.1f,0.0f,0.1f,1.0f };
	GLfloat shininess = 150.0f;

	GLfloat no_materialEmission[] = { 0.0f,0.0f,0.0f, 1.0f };
	GLfloat no_materialColor[] = { 0.0f, 0.0f, 0.0f, 1.0f };
	GLfloat no_materialSpecular[] = { 0.0f,0.0f,0.0f,1.0f };
	GLfloat no_shininess = 0.0f;

	GLfloat ambient[] = { 0.8f, 0.8f, 0.8f, 1.0f };
	GLfloat diffuse[] = { 1.0f, 1.0f, 1.0f, 1.0f };
	GLfloat specular[] = { 0.8f, 0.5f, 0.5f, 1.0f };
	GLfloat position[] = { 0.0f, 200.0f, 200.0f, 0.0f };

	glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE);
	glEnable(GL_COLOR_MATERIAL);
	glEnable(GL_LIGHT0);
	glEnable(GL_LIGHTING);
	glEnable(GL_AUTO_NORMAL);
	glEnable(GL_NORMALIZE);
	glShadeModel(GL_FLAT);
	glClearColor(0.0, 0.0, 0.0, 0.0);
	//pentru a fi desenat sistemul astfel încât obiectele din spate să fie acoperite de cele din faţă se va folosi următoarele doua functii
	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
	glEnable(GL_DEPTH_TEST);
	glColor3f(1.0, 1.0, 1.0);
	glPushMatrix();
	/*  Soare */
	glColor3d(1.0, 1.0, 0.0);
	glMaterialfv(GL_FRONT, GL_EMISSION, materialEmission);
	glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, materialColor);
	glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, materialSpecular);
	glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, materialEmission);
	glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, shininess); //The shininess parameter
	auxSolidSphere(0.8);


	/*  Pamantul */
	glRotatef((GLfloat)v, 0.0, 1.0, 0.0);
	glTranslatef(2.2, 0.0, 0.0);
	glColor3d(0.0, 0.0, 1.0);
	glMaterialfv(GL_FRONT, GL_EMISSION, no_materialEmission);
	glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, no_materialColor);
	glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, no_materialSpecular);
	glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, no_materialEmission);
	glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, no_shininess); //The shininess parameter
	auxSolidSphere(0.3);

	/*  Luna */
	glRotatef((GLfloat)v * 2, 0.0, 1.0, 0.0);
	glTranslatef(0.8, 0.0, 0.0);
	glMaterialfv(GL_FRONT, GL_EMISSION, no_materialEmission);
	glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, no_materialColor);
	glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, no_materialSpecular);
	glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, no_materialEmission);
	glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, no_shininess); //The shininess parameter
	glColor3d(0.5, 0.5, 0.5);
	auxSolidSphere(0.15);
	glPopMatrix();
	v++;
	glFlush();
	Sleep(30);
}
void CALLBACK myReshape(GLsizei w, GLsizei h)
{
	if (!h) return;
	glViewport(0, 0, w, h);
	glMatrixMode(GL_PROJECTION);
	glLoadIdentity();
	gluPerspective(40.0, (GLfloat)w / (GLfloat)h, 1.0, 20.0);
	glMatrixMode(GL_MODELVIEW);
	glLoadIdentity();
	glTranslatef(0.0, 0.0, -5.0);
}

void main()
{
	auxInitDisplayMode(AUX_SINGLE | AUX_RGB);
	auxInitPosition(0, 0, 800, 600);
	auxInitWindow("Sistem solar");
	auxIdleFunc(display);
	auxReshapeFunc(myReshape);
	auxMainLoop(display);
}