Ejemplo n.º 1
0
static void
DrawScene(void)
{
   int i;

   glEnable(GL_LIGHTING);

   for (i = 0; i < NUM_CYLINDERS; i++) {
      DrawCylinder(&Cylinders[i]);
   }

   glDisable(GL_LIGHTING);

   if (1)
      DrawLightSource();

   /* ground plane */
   if (1) {
      GLfloat k = 10.0, g = GroundY;
      CheckError(__LINE__);
      glPushMatrix();
      glColor3fv(GroundColor);
      glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, GroundColor);
      glNormal3f(0, 1, 0);
      glBegin(GL_POLYGON);
      glVertex3f(-k, g, -k);
      glVertex3f( k, g, -k);
      glVertex3f( k, g,  k);
      glVertex3f(-k, g,  k);
      glEnd();
      glPopMatrix();
   }

   CheckError(__LINE__);
}
Ejemplo n.º 2
0
void RedrawFunc( void )
{
	// all time in milliseconds
	int elapsedTime = glutGet( GLUT_ELAPSED_TIME );
	static int prevElapsedTime = 0;
	static float timeAccum = 0.0;
	int deltaTime = elapsedTime - prevElapsedTime;

	vec3_t lightPosition = { 0.0f, 0.0f, 60.0f };
	
	prevElapsedTime = elapsedTime;
	
	glClearColor( 0.0f, 0.0f, 0.0f, 1.0f );
	glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );

	glDepthFunc( GL_LEQUAL );
	glEnable( GL_DEPTH_TEST );

	if( drawLighting )
	{
		SetLight( lightPosition );
	}
	
	if( drawBaseTexture )
	{
		glEnable( GL_TEXTURE_2D );
		glBindTexture( GL_TEXTURE_2D, BASE_TEXTURE );
//		glBindTexture( GL_TEXTURE_2D, NORMAL_TEXTURE );
	}
	else
	{
		glDisable( GL_TEXTURE_2D );
	}
	
	if( drawWireFrame )
	{
		glPolygonMode( GL_FRONT_AND_BACK, GL_LINE );
		glCallList( WIRE_LIST );
	}
	else
	{
		glCallList( QUAD_LIST );
	}

	glDisable( GL_TEXTURE_2D );
	glDisable( GL_LIGHTING );

	glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);

	if( drawNormals )
	{
		glColor3f( 0.0f, 1.0f, 0.0f );
		glCallList( NORMAL_LIST );
		glColor3f( 1.0f, 1.0f, 1.0f );
	}

	DrawLightSource( lightPosition, 1.0f, 1.0f, 1.0f );
	
	DrawStatus();
	
	glutSwapBuffers();
	glFinish();
}