Example usage for org.lwjgl.opengl GL11 glOrtho

List of usage examples for org.lwjgl.opengl GL11 glOrtho

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Introduction

In this page you can find the example usage for org.lwjgl.opengl GL11 glOrtho.

Prototype

public static native void glOrtho(@NativeType("GLdouble") double l, @NativeType("GLdouble") double r,
        @NativeType("GLdouble") double b, @NativeType("GLdouble") double t, @NativeType("GLdouble") double n,
        @NativeType("GLdouble") double f);

Source Link

Document

Manipulates the current matrix with a matrix that produces parallel projection, in such a way that the coordinates (lb – n)T and (rt – n)T specify the points on the near clipping plane that are mapped to the lower left and upper right corners of the window, respectively (assuming that the eye is located at (0 0 0)T).

Usage

From source file:a1.Main.java

License:Open Source License

private void setView(int screenWidth, int screenHeight) {
    GL11.glViewport(0, 0, screenWidth, screenHeight);

    GL11.glMatrixMode(GL11.GL_PROJECTION);
    GL11.glLoadIdentity();//from ww  w.  j av a2s.c o  m
    GL11.glOrtho(0, screenWidth, screenHeight, 0, -1, 1);

    GL11.glMatrixMode(GL11.GL_MODELVIEW);
    GL11.glLoadIdentity();
}

From source file:akarnokd.opengl.experiment.FontExample.java

License:Apache License

/**
 * Initialise the GL display//from  w w  w  .  java2s  .c o m
 * 
 * @param width The width of the display
 * @param height The height of the display
 */
private void initGL(int width, int height) {
    try {
        Display.setDisplayMode(new DisplayMode(width, height));
        Display.create();
        Display.setVSyncEnabled(true);
    } catch (LWJGLException e) {
        e.printStackTrace();
        System.exit(0);
    }

    GL11.glEnable(GL11.GL_TEXTURE_2D);
    GL11.glShadeModel(GL11.GL_SMOOTH);
    GL11.glDisable(GL11.GL_DEPTH_TEST);
    GL11.glDisable(GL11.GL_LIGHTING);

    GL11.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
    GL11.glClearDepth(1);

    GL11.glEnable(GL11.GL_BLEND);
    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);

    GL11.glViewport(0, 0, width, height);
    GL11.glMatrixMode(GL11.GL_MODELVIEW);

    GL11.glMatrixMode(GL11.GL_PROJECTION);
    GL11.glLoadIdentity();
    GL11.glOrtho(0, width, height, 0, 1, -1);
    GL11.glMatrixMode(GL11.GL_MODELVIEW);
}

From source file:aphelion.client.Client.java

License:Open Source License

public static void initGL() {
    int displayWidth = Display.getWidth();
    int displayHeight = Display.getHeight();

    glDisableAll();/*from  w  w  w.j  a va  2s.c  o  m*/

    GL11.glViewport(0, 0, displayWidth, displayHeight);

    GL11.glMatrixMode(GL11.GL_PROJECTION); // Apply subsequent matrix operations to the projection matrix stack.
    GL11.glLoadIdentity();
    GL11.glOrtho(0, displayWidth, displayHeight, 0, -1, 1);

    GL11.glMatrixMode(GL11.GL_TEXTURE);
    GL11.glLoadIdentity();

    GL11.glMatrixMode(GL11.GL_MODELVIEW);
    GL11.glLoadIdentity();

    GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_STENCIL_BUFFER_BIT);
    AsyncTexture.unbind();

    // Enable alpha channels for images
    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
    GL11.glEnable(GL11.GL_BLEND);

    Graph.g.setDimensions(displayWidth, displayHeight);
    Graphics.setCurrent(Graph.g);
    Graph.g.setDrawMode(Graphics.MODE_NORMAL);
}

From source file:arg.RenderRecipe.java

License:Open Source License

public void draw() {

    File dir = new File(Minecraft.getMinecraft().mcDataDir, "recipes");
    if (!dir.exists() && !dir.mkdirs()) {
        throw new RuntimeException("The recipes directory could not be created: " + dir);
    }/*from   ww  w.  j a v  a 2 s.c  o m*/

    name = name.replace(" ", "");
    File file = new File(Minecraft.getMinecraft().mcDataDir, "recipes/" + name + ".png");

    if (file.exists())
        return;

    GL11.glPushMatrix();
    GL11.glPushAttrib(GL11.GL_ALL_ATTRIB_BITS);
    GL11.glPushClientAttrib(GL11.GL_ALL_CLIENT_ATTRIB_BITS);
    GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);

    GL11.glMatrixMode(GL11.GL_PROJECTION);
    GL11.glLoadIdentity();
    GL11.glViewport(0, 0, width, height);
    GL11.glOrtho(0.0D, xSize, ySize, 0.0D, 1000.0D, 3000.0D);
    GL11.glMatrixMode(GL11.GL_MODELVIEW);
    GL11.glLoadIdentity();
    GL11.glTranslatef(0.0F, 0.0F, -2000.0F);
    GL11.glLineWidth(1.0F);

    GL11.glEnable(GL11.GL_COLOR_MATERIAL);

    try {
        drawScreen(0, 0, 0);
    } catch (Exception e) {
        e.printStackTrace();
    }

    int[] pixels = new int[width * height];
    int bindex;

    ByteBuffer fb = ByteBuffer.allocateDirect(width * height * 3);

    GL11.glReadPixels(0, 0, width, height, GL11.GL_RGB, GL11.GL_UNSIGNED_BYTE, fb);
    GL11.glPopMatrix();
    GL11.glPopAttrib();
    GL11.glPopClientAttrib();
    GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
    try {
        Display.swapBuffers();
    } catch (LWJGLException e1) {
        e1.printStackTrace();
    }

    BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);

    for (int x = 0; x < width; x++) {
        for (int y = 0; y < height; y++) {
            int i = (x + (width * y)) * 3;
            int r = fb.get(i) & 0xFF;
            int g = fb.get(i + 1) & 0xFF;
            int b = fb.get(i + 2) & 0xFF;
            image.setRGB(x, height - (y + 1), (0xFF << 24) | (r << 16) | (g << 8) | b);
        }
    }

    try {
        ImageIO.write(image, "png", file);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:br.org.archimedes.gui.opengl.OpenGLWrapper.java

License:Open Source License

/**
 * Updates the window size in the workspace and resets the openGL
 * coordinates.//from  w  w  w.  j av a  2  s. c  o  m
 */
public void resize() {

    if (currentCanvas != null) {
        org.eclipse.swt.graphics.Rectangle rect = currentCanvas.getClientArea();
        GL11.glOrtho(-rect.width / 2, rect.width / 2, -rect.height / 2, rect.height / 2, -1.0, 1.0);
        Rectangle window = new Rectangle(0, 0, rect.width, rect.height);
        GL11.glViewport(0, 0, rect.width, rect.height);
        br.org.archimedes.Utils.getWorkspace().setWindowSize(window);
    }
}

From source file:cellularautomata.CellularAutomata.java

public static void renderGL() {
    try { //Trys to create a game window size 500x700.
        Display.setDisplayMode(new org.lwjgl.opengl.DisplayMode(800, 600));
        Display.create();//  ww  w.j av a  2 s.  com
    } catch (LWJGLException e) { //Catches exception if game window is not created.
        e.printStackTrace();
        System.exit(0);
    }

    GL11.glEnable(GL11.GL_TEXTURE_2D);
    GL11.glShadeModel(GL11.GL_SMOOTH);
    GL11.glDisable(GL11.GL_DEPTH_TEST);
    GL11.glDisable(GL11.GL_LIGHTING);

    GL11.glClearColor(0.0f, 0.0f, 0.0f, 0.0f); //Sets colour to white.
    GL11.glClearDepth(1);

    GL11.glEnable(GL11.GL_BLEND);
    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);

    GL11.glViewport(0, 0, 800, 600);
    GL11.glMatrixMode(GL11.GL_MODELVIEW);

    GL11.glMatrixMode(GL11.GL_PROJECTION);
    GL11.glLoadIdentity();
    GL11.glOrtho(0, 800, 600, 0, 1, -1);
    GL11.glMatrixMode(GL11.GL_MODELVIEW);

    Display.setVSyncEnabled(vsync);
}

From source file:colonialdisplay.AntDisplayGL.java

@Override
protected void initGL() {
    Rectangle bounds = canvas.getClientArea();
    GL11.glViewport(bounds.x, bounds.y, bounds.width, bounds.height);

    GL11.glMatrixMode(GL11.GL_PROJECTION);
    GL11.glLoadIdentity();/*w  w w .  j av a2 s.c  o m*/

    GL11.glOrtho(0, bounds.width, bounds.height, 0, 1, -1);

    GL11.glMatrixMode(GL11.GL_MODELVIEW);
    GL11.glLoadIdentity();
    initTextures();
    GL11.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
    createModel();
}

From source file:com.a2client.corex.Render.java

License:Open Source License

static public void set2D(int width, int height) {
    ResetBind();//w  w w  . j a v  a2 s . com
    Clear(false, true);
    setBlendType(Const.BLEND_TYPE.btNormal);
    setDepthTest(false);
    setCullFace(Const.CULL_FACE.cfNone);

    GL11.glEnable(GL11.GL_TEXTURE_2D);
    GL11.glDisable(GL11.GL_LIGHTING);

    setDepthTest(false);

    GL11.glViewport(0, 0, width, height);

    GL11.glMatrixMode(GL11.GL_PROJECTION);
    GL11.glLoadIdentity();
    GL11.glOrtho(0, width, height, 0, -1, 1);

    GL11.glMatrixMode(GL11.GL_MODELVIEW);
    GL11.glLoadIdentity();
}

From source file:com.acornui.jvm.LwjglHelloWorld.java

License:Apache License

private void initMatrices() {
    GL11.glMatrixMode(GL11.GL_PROJECTION);
    GL11.glLoadIdentity();
    GL11.glOrtho(0, 800, 0, 600, 1, -1);
    GL11.glMatrixMode(GL11.GL_MODELVIEW);
}

From source file:com.ardor3d.renderer.lwjgl.LwjglRenderer.java

License:Open Source License

public void setOrtho() {
    if (_inOrthoMode) {
        throw new Ardor3dException("Already in Orthographic mode.");
    }/*from   w w w.j a va2s.c  om*/
    // set up ortho mode
    final RendererRecord matRecord = ContextManager.getCurrentContext().getRendererRecord();
    LwjglRendererUtil.switchMode(matRecord, GL11.GL_PROJECTION);
    GL11.glPushMatrix();
    GL11.glLoadIdentity();
    final Camera camera = Camera.getCurrentCamera();
    final double viewportWidth = camera.getWidth() * (camera.getViewPortRight() - camera.getViewPortLeft());
    final double viewportHeight = camera.getHeight() * (camera.getViewPortTop() - camera.getViewPortBottom());
    GL11.glOrtho(0, viewportWidth, 0, viewportHeight, -1, 1);
    LwjglRendererUtil.switchMode(matRecord, GL11.GL_MODELVIEW);
    GL11.glPushMatrix();
    GL11.glLoadIdentity();
    _inOrthoMode = true;
}