/*
* Copyright (c) 2013, Oskar Veerhoek
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those
* of the authors and should not be interpreted as representing official policies,
* either expressed or implied, of the FreeBSD Project.
*/
package episode_24;
import org.lwjgl.LWJGLException;
import org.lwjgl.input.Mouse;
import org.lwjgl.opengl.Display;
import org.lwjgl.opengl.DisplayMode;
import org.lwjgl.util.vector.Vector3f;
import utility.Camera;
import utility.EulerCamera;
import utility.Model;
import utility.OBJLoader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import static org.lwjgl.opengl.GL11.*;
/**
* Loads the Stanford bunny .obj file and draws it.
*
* @author Oskar Veerhoek
*/
public class ModelDemo {
private static Camera camera;
private static int bunnyDisplayList;
private static final String MODEL_LOCATION = "res/models/bunny.obj";
public static void main(String[] args) {
setUpDisplay();
setUpDisplayLists();
setUpCamera();
while (!Display.isCloseRequested()) {
render();
checkInput();
Display.update();
Display.sync(60);
}
cleanUp();
System.exit(0);
}
private static void setUpDisplayLists() {
bunnyDisplayList = glGenLists(1);
glNewList(bunnyDisplayList, GL_COMPILE);
{
Model m = null;
try {
m = OBJLoader.loadModel(new File(MODEL_LOCATION));
} catch (FileNotFoundException e) {
e.printStackTrace();
Display.destroy();
System.exit(1);
} catch (IOException e) {
e.printStackTrace();
Display.destroy();
System.exit(1);
}
glBegin(GL_TRIANGLES);
for (Model.Face face : m.getFaces()) {
Vector3f n1 = m.getNormals().get(face.getNormalIndices()[0] - 1);
glNormal3f(n1.x, n1.y, n1.z);
Vector3f v1 = m.getVertices().get(face.getVertexIndices()[0] - 1);
glVertex3f(v1.x, v1.y, v1.z);
Vector3f n2 = m.getNormals().get(face.getNormalIndices()[1] - 1);
glNormal3f(n2.x, n2.y, n2.z);
Vector3f v2 = m.getVertices().get(face.getVertexIndices()[1] - 1);
glVertex3f(v2.x, v2.y, v2.z);
Vector3f n3 = m.getNormals().get(face.getNormalIndices()[2] - 1);
glNormal3f(n3.x, n3.y, n3.z);
Vector3f v3 = m.getVertices().get(face.getVertexIndices()[2] - 1);
glVertex3f(v3.x, v3.y, v3.z);
}
glEnd();
}
glEndList();
}
private static void checkInput() {
camera.processMouse(1, 80, -80);
camera.processKeyboard(16, 1, 1, 1);
if (Mouse.isButtonDown(0)) {
Mouse.setGrabbed(true);
} else if (Mouse.isButtonDown(1)) {
Mouse.setGrabbed(false);
}
}
private static void cleanUp() {
glDeleteLists(bunnyDisplayList, 1);
Display.destroy();
}
private static void render() {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
camera.applyTranslations();
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
glCallList(bunnyDisplayList);
}
private static void setUpCamera() {
camera = new EulerCamera.Builder().setAspectRatio((float) Display.getWidth() / Display.getHeight())
.setRotation(-1.12f, 0.16f, 0f).setPosition(-1.38f, 1.36f, 7.95f).setFieldOfView(60).build();
camera.applyOptimalStates();
camera.applyPerspectiveMatrix();
}
private static void setUpDisplay() {
try {
Display.setDisplayMode(new DisplayMode(640, 480));
Display.setVSyncEnabled(true);
Display.setTitle("Happy Easter!");
Display.create();
} catch (LWJGLException e) {
System.err.println("The display wasn't initialized correctly. :(");
Display.destroy();
System.exit(1);
}
}
}