OpenGL de プログラミング

#include <gl/glut.h>
#include <gl/glui.h>


//----------- 各種外部変数 ---------------//
int glutWinId;//ウィンドウID

//平行移動
float trans_ary[2]={0,0};
float trans_aryZ[]={0};


void drawXYZ();


//---------------- 各種コールバック ----------------------//
void idle()
{
	glutSetWindow(glutWinId);
	glutPostRedisplay();
}

//ディスプレイのコールバック
void display() 
{
	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
	glLoadIdentity();
	gluLookAt(5.0, 10.0, 15.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);

	glColor3f(0,1,0);
	glPushMatrix();
	glTranslatef(trans_ary[0],trans_ary[1],trans_aryZ[0]);
	glutWireTeapot(1);
	glPopMatrix();

	drawXYZ();

	glutSwapBuffers();
}

void reshape(int w, int h)
{
	glViewport(0, 0, w, h);

	glMatrixMode(GL_PROJECTION);
	glLoadIdentity();
	gluPerspective(30.0, (double)w / (double)h, 1.0, 100.0);

	glMatrixMode(GL_MODELVIEW);

}



//------------- OpenGLの初期設定 ------------------//
void GLUT_INIT()
{
	glutInitDisplayMode(GLUT_RGBA| GLUT_DOUBLE | GLUT_DEPTH);
	glutInitWindowSize(640,480);
	glutWinId = glutCreateWindow("GLUT And GLUI");
}

void GLUT_CALL_FUNC()
{
	glutDisplayFunc(display);
	glutReshapeFunc(reshape);
}

void MY_INIT()
{
	glClearColor(1.0, 1.0, 1.0, 1.0);

	glEnable(GL_DEPTH_TEST);//ZバッファON
}


//--------- GLUTの初期設定 -----------//
void GLUT_INITs(int *argcp, char **argv)
{
	glutInit(argcp,argv);
	GLUT_INIT();
	GLUT_CALL_FUNC();
	MY_INIT();
}

//------ メイン関数 ----------//
int main(int argc, char *argv[]) 
{

	GLUT_INITs(&argc, argv);

	//GLUIの初期設定
	GLUI *glui = GLUI_Master.create_glui("GLUI Window");
	glui->add_statictext( "Simple GLUI Example" ); //テキスト
	
	GLUI_Translation *gluiTrans1 = new GLUI_Translation(glui,"TransXY",GLUI_TRANSLATION_XY,trans_ary);
	gluiTrans1->set_speed(0.1);
	gluiTrans1->set_alignment(GLUI_ALIGN_RIGHT);//配置は右よせ


	GLUI_Translation *gluiTrans2 = new GLUI_Translation(glui,"TransZ",GLUI_TRANSLATION_Z,trans_aryZ);
	gluiTrans2->set_speed(0.1);
	gluiTrans2->set_h(150);
	gluiTrans2->set_w(150);


	glui->set_main_gfx_window(glutWinId);
	GLUI_Master.set_glutIdleFunc( idle );

	glutMainLoop();

	return 0;
}


//-------------- ここで各種関数 ------------------//
void drawXYZ()
{
	
	glBegin(GL_LINES);
	glColor3f(0.f, 1.f, 0.f);
	glVertex2f(0.f,0.f);
	glVertex2f(0.f,100.f);

	glColor3f(1.f, 0.f, 0.f);
	glVertex2f(0.f,0.f);
	glVertex2f(100.f,0.f);

	glColor3f(0.f, 0.f, 1.f);
	glVertex3f(0.f,0.f,0.f);
	glVertex3f(0.f,0.f,100.f);
	
	glEnd();

	glColor3f(1,1,1);
}