package cg;
//--------------------------------------------------------------------
import javax.swing.JFrame;
import com.jogamp.opengl.GL2;
import com.jogamp.opengl.GLAutoDrawable;
import com.jogamp.opengl.GLCapabilities;
import com.jogamp.opengl.GLEventListener;
import com.jogamp.opengl.GLProfile;
import com.jogamp.opengl.awt.GLCanvas;
import com.jogamp.opengl.glu.GLU;
import com.jogamp.opengl.util.FPSAnimator;
import com.jogamp.opengl.util.gl2.GLUT;
import java.io.File;
import java.io.IOException;
import com.jogamp.opengl.util.texture.Texture;
import com.jogamp.opengl.util.texture.TextureIO;
//--------------------------------------------------------------------
public class Main implements GLEventListener {
GLU glu = new GLU();
GLUT glut = new GLUT();
static float rtri = 0.0f;
static float env_color[] = { 1.0f, 0.0f, 0.0f, 1.0f };
static float lmodel_ambient[] = { 0.4f, 0.4f, 0.4f, 1.0f };
static float ambient[] = { 0.0f, 0.0f, 0.0f, 1.0f };
static float diffuse[] = { 1.0f, 1.0f, 1.0f, 1.0f };
static float specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };
static float position[] = { 0.0f, 0.0f, 6.0f, 1.0f };
static float direction[] = {0.0f, 0.0f, -1.0f};
static float cutoff = 15.0f;
static float exponent = 1.0f;
static float atten_con = 1.0f;
static float atten_lin = 0.0f;
static float atten_qua = 0.0f;
//Gold (poliert)
static float mat_amb_au[] = { 0.25f, 0.22f, 0.06f, 1.0f };
static float mat_spec_au[] = { 0.80f, 0.72f, 0.21f, 1.0f };
static float mat_dif_au[] = { 0.35f, 0.31f, 0.09f, 1.0f };
static float mat_emi_au[] = { 0.0f, 0.0f, 0.0f, 1.0f };
static float mat_shi_au = 83.2f;
//Silber (poliert)
static float mat_amb_ar[] = { 0.23f, 0.23f, 0.23f, 1.0f };
static float mat_spec_ar[] = { 0.77f, 0.77f, 0.77f, 1.0f };
static float mat_dif_ar[] = { 0.28f, 0.28f, 0.28f, 1.0f };
static float mat_emi_ar[] = { 0.0f, 0.0f, 0.0f, 1.0f };
static float mat_shi_ar = 89.6f;
String texturdatei = "eureTexturDateiname.Dateiformat";
String texturPfad = "src/res/" + texturdatei;
float texmax = 1f;
Texture texture;
//--------------------------------------------------------------------
public static void main(String[] args) {
final GLProfile profile = GLProfile.get(GLProfile.GL2);
GLCapabilities capabilities = new GLCapabilities(profile);
final GLCanvas glcanvas = new GLCanvas(capabilities);
final int width = 800;
final int height = 600;
Main m = new Main();
glcanvas.addGLEventListener(m);
final JFrame frame = new JFrame ("texturierte v beleuchtete Objekte");
frame.add(glcanvas);
frame.setSize(width, height);
frame.setVisible(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
final FPSAnimator animator = new FPSAnimator( glcanvas, 60, true );
animator.start();
}
//--------------------------------------------------------------------
@Override
public void init(GLAutoDrawable drawable) {
GL2 gl = drawable.getGL().getGL2();
//--------------------------------------------------------------------
gl.glLightModelfv(GL2.GL_LIGHT_MODEL_AMBIENT, lmodel_ambient, 0);
gl.glLightfv(GL2.GL_LIGHT0, GL2.GL_AMBIENT, ambient, 0);
gl.glLightfv(GL2.GL_LIGHT0, GL2.GL_SPECULAR, specular, 0);
gl.glLightfv(GL2.GL_LIGHT0, GL2.GL_DIFFUSE, diffuse, 0);
gl.glLightfv(GL2.GL_LIGHT0, GL2.GL_POSITION, position, 0);
gl.glLightfv(GL2.GL_LIGHT0, GL2.GL_SPOT_DIRECTION, direction, 0);
gl.glLightf(GL2.GL_LIGHT0, GL2.GL_SPOT_CUTOFF, cutoff);
gl.glLightf(GL2.GL_LIGHT0, GL2.GL_SPOT_EXPONENT, exponent);
gl.glLightf(GL2.GL_LIGHT0, GL2.GL_CONSTANT_ATTENUATION, atten_con);
gl.glLightf(GL2.GL_LIGHT0, GL2.GL_LINEAR_ATTENUATION, atten_lin);
gl.glLightf(GL2.GL_LIGHT0, GL2.GL_QUADRATIC_ATTENUATION, atten_qua);
//--------------------------------------------------------------------
gl.glEnable(GL2.GL_LIGHTING);
gl.glEnable(GL2.GL_LIGHT0);
gl.glEnable(GL2.GL_NORMALIZE);
//--------------------------------------------------------------------
//gl.glColorMaterial(GL2.GL_FRONT, GL2.GL_AMBIENT);
//gl.glColorMaterial(GL2.GL_FRONT, GL2.GL_DIFFUSE);
//gl.glColorMaterial(GL2.GL_FRONT, GL2.GL_SPECULAR);
//gl.glColorMaterial(GL2.GL_FRONT, GL2.GL_EMISSION);
//gl.glEnable(GL2.GL_COLOR_MATERIAL);
gl.glDisable(GL2.GL_COLOR_MATERIAL);
//--------------------------------------------------------------------
gl.glEnable(GL2.GL_DEPTH_TEST);
gl.glDepthFunc(GL2.GL_LESS);
//--------------------------------------------------------------------
gl.glFrontFace(GL2.GL_CCW);
gl.glCullFace(GL2.GL_BACK);
try
{
File im = new File(texturPfad);
texture = TextureIO.newTexture(im, true);
}
catch (IOException e)
{
e.printStackTrace();
}
}
//--------------------------------------------------------------------
@Override
public void display(GLAutoDrawable drawable) {
GL2 gl = drawable.getGL().getGL2();
gl.glClear( GL2.GL_COLOR_BUFFER_BIT | GL2.GL_DEPTH_BUFFER_BIT );
gl.glMatrixMode( GL2.GL_MODELVIEW );
gl.glLoadIdentity();
gl.glTranslatef( 0.0f, 0.0f, -6.0f);
texture.enable(gl);
texture.bind(gl);
gl.glTexParameteri(GL2.GL_TEXTURE_2D, GL2.GL_TEXTURE_MAG_FILTER, GL2.GL_NEAREST);
gl.glTexParameteri(GL2.GL_TEXTURE_2D, GL2.GL_TEXTURE_MIN_FILTER, GL2.GL_NEAREST);
gl.glTexParameteri(GL2.GL_TEXTURE_2D, GL2.GL_TEXTURE_WRAP_R, GL2.GL_REPEAT);
gl.glTexParameteri(GL2.GL_TEXTURE_2D, GL2.GL_TEXTURE_WRAP_S, GL2.GL_CLAMP);
gl.glTexEnvf(GL2.GL_TEXTURE_ENV, GL2.GL_TEXTURE_ENV_MODE, GL2.GL_MODULATE);
//gl.glTexEnvf(GL2.GL_TEXTURE_ENV, GL2.GL_TEXTURE_ENV_MODE, GL2.GL_REPLACE);
//gl.glTexEnvf(GL2.GL_TEXTURE_ENV, GL2.GL_TEXTURE_ENV_MODE, GL2.GL_BLEND);
//gl.glTexEnvfv(GL2.GL_TEXTURE_ENV, GL2.GL_TEXTURE_ENV_COLOR, env_color, 0);
//--------------------------------------------------------------------
gl.glMaterialfv(GL2.GL_FRONT, GL2.GL_AMBIENT, mat_amb_au, 0);
gl.glMaterialfv(GL2.GL_FRONT, GL2.GL_DIFFUSE, mat_dif_au, 0);
gl.glMaterialfv(GL2.GL_FRONT, GL2.GL_SPECULAR, mat_spec_au, 0);
gl.glMaterialfv(GL2.GL_FRONT, GL2.GL_EMISSION, mat_emi_au, 0);
gl.glMaterialf(GL2.GL_FRONT, GL2.GL_SHININESS, mat_shi_au);
//--------------------------------------------------------------------
gl.glPushMatrix();
gl.glTranslated(1.0f, 0.0f, 0.0f);
gl.glRotatef( rtri, 1.0f, 1.0f, 1.0f );
drawCube(gl);
gl.glPopMatrix();
gl.glPushMatrix();
texture.disable(gl);
//--------------------------------------------------------------------
gl.glMaterialfv(GL2.GL_FRONT, GL2.GL_AMBIENT, mat_amb_ar, 0);
gl.glMaterialfv(GL2.GL_FRONT, GL2.GL_DIFFUSE, mat_dif_ar, 0);
gl.glMaterialfv(GL2.GL_FRONT, GL2.GL_SPECULAR, mat_spec_ar, 0);
gl.glMaterialfv(GL2.GL_FRONT, GL2.GL_EMISSION, mat_emi_ar, 0);
gl.glMaterialf(GL2.GL_FRONT, GL2.GL_SHININESS, mat_shi_ar);
//--------------------------------------------------------------------
gl.glTranslated(-1.5f, 0.0f, 0.0f);
gl.glRotatef( rtri, 1.0f, 1.0f, 1.0f );
glut.glutSolidTeapot(0.7f);
gl.glPopMatrix();
rtri +=0.2f;
}
//--------------------------------------------------------------------
// zu texturierendes Objekt wird gezeichnet
// OpenGL-komform definiert (i.e. aüßere Seiten im Gegenuhrzeigersinn)
// entspricht dem Vorgabewert GL_CCW für glFrontFace
// v6----- v5
// /| /|
// v1------v0|
// | | | |
// | v7----|-v4
// |/ |/
// v2------v3
public void drawCube(GL2 gl) {
gl.glBegin( GL2.GL_QUADS );
//gl.glColor4f(1.0f, 0.0f, 0.0f, 1.0f);
//--------------------------------------------------------------------
gl.glNormal3f(0.0f, 1.0f, 0.0f);
//--------------------------------------------------------------------
gl.glTexCoord2f(texmax, texmax);gl.glVertex3f( 1.0f, 1.0f, -1.0f ); // v5 Top Right (Top)
gl.glTexCoord2f(0f, texmax);gl.glVertex3f( -1.0f, 1.0f, -1.0f); // v6 Top Left (Top)
gl.glTexCoord2f(0f, 0f);gl.glVertex3f( -1.0f, 1.0f, 1.0f ); // v1 Bottom Left (Top)
gl.glTexCoord2f(texmax, 0f);gl.glVertex3f( 1.0f, 1.0f, 1.0f ); // v0 Bottom Right (Top)
//--------------------------------------------------------------------
gl.glNormal3f(0.0f, -1.0f, 0.0f);
//--------------------------------------------------------------------
gl.glTexCoord2f(texmax, texmax);gl.glVertex3f( 1.0f, -1.0f, 1.0f ); // v3 Top Right (Bottom)
gl.glTexCoord2f(0f, texmax);gl.glVertex3f( -1.0f, -1.0f, 1.0f ); // v2 Top Left (Bottom)
gl.glTexCoord2f(0f, 0f);gl.glVertex3f( -1.0f, -1.0f, -1.0f ); // v7 Bottom Left (Bottom)
gl.glTexCoord2f(texmax, 0f);gl.glVertex3f( 1.0f, -1.0f, -1.0f ); // v4 Bottom Right (Bottom)
//--------------------------------------------------------------------
gl.glNormal3f(0.0f, 0.0f, 1.0f);
//--------------------------------------------------------------------
gl.glTexCoord2f(texmax, texmax);gl.glVertex3f( 1.0f, 1.0f, 1.0f ); // v0 Top Right (Front)
gl.glTexCoord2f(0f, texmax);gl.glVertex3f( -1.0f, 1.0f, 1.0f ); // v1 Top Left (Front)
gl.glTexCoord2f(0f, 0f);gl.glVertex3f( -1.0f, -1.0f, 1.0f ); // v2 Bottom Left (Front)
gl.glTexCoord2f(texmax, 0f);gl.glVertex3f( 1.0f, -1.0f, 1.0f ); // v3 Bottom Right (Front)
//--------------------------------------------------------------------
gl.glNormal3f(0.0f, 0.0f, -1.0f);
//--------------------------------------------------------------------
gl.glTexCoord2f(texmax, texmax);gl.glVertex3f( 1.0f, -1.0f, -1.0f ); // v4 Bottom Left (Back)
gl.glTexCoord2f(0f, texmax);gl.glVertex3f( -1.0f, -1.0f, -1.0f ); // v7 Bottom Right (Back)
gl.glTexCoord2f(0f, 0f);gl.glVertex3f( -1.0f, 1.0f, -1.0f ); // v6 Top Right (Back)
gl.glTexCoord2f(texmax, 0f);gl.glVertex3f( 1.0f, 1.0f, -1.0f ); // v5 Top Left (Back)
//--------------------------------------------------------------------
gl.glNormal3f( -1.0f, 0.0f, 0.0f);
//--------------------------------------------------------------------
gl.glTexCoord2f(texmax, texmax);gl.glVertex3f( -1.0f, 1.0f, 1.0f ); // v1 Top Right (Left)
gl.glTexCoord2f(0f, texmax);gl.glVertex3f( -1.0f, 1.0f, -1.0f ); // v6 Top Left (Left)
gl.glTexCoord2f(0f, 0f);gl.glVertex3f( -1.0f, -1.0f, -1.0f ); // v7 Bottom Left (Left)
gl.glTexCoord2f(texmax, 0f);gl.glVertex3f( -1.0f, -1.0f, 1.0f ); // v2 Bottom Right (Left)
//--------------------------------------------------------------------
gl.glNormal3f( 1.0f, 0.0f, 0.0f);
//--------------------------------------------------------------------
gl.glTexCoord2f(texmax, texmax);gl.glVertex3f( 1.0f, 1.0f, -1.0f ); // v5 Top Right (Right)
gl.glTexCoord2f(0f, texmax);gl.glVertex3f( 1.0f, 1.0f, 1.0f ); // v0 Top Left (Right)
gl.glTexCoord2f(0f, 0f);gl.glVertex3f( 1.0f, -1.0f, 1.0f ); // v3 Bottom Left (Right)
gl.glTexCoord2f(texmax, 0f);gl.glVertex3f( 1.0f, -1.0f, -1.0f ); // v4 Bottom Right (Right)
gl.glEnd();
}
//--------------------------------------------------------------------
@Override
public void dispose(GLAutoDrawable drawable) {}
//--------------------------------------------------------------------
@Override
public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {
final GL2 gl = drawable.getGL().getGL2();
final float h = ( float ) width / ( float ) height;
gl.glViewport( 0, 0, width, height );
gl.glMatrixMode( GL2.GL_PROJECTION );
gl.glLoadIdentity();
glu.gluPerspective( 45.0f, h, 1.0, 20.0 );
gl.glMatrixMode( GL2.GL_MODELVIEW );
gl.glLoadIdentity();
}
}