Example usage for org.lwjgl.opengl GL11 glLoadIdentity

Introduction

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

Prototype

public static native void glLoadIdentity();

Source Link

Document

Sets the current matrix to the identity matrix.

Usage

From source file:com.a2client.utils3d.SceneCombi.java

License:Open Source License

public void Switch2D(boolean forced, boolean need_rescale) {
    if (forced || !is_2d_switched) {
        Render.set2D(Config.getScreenWidth(), Config.getScreenHeight());
        GL11.glLoadIdentity();
        if (need_rescale)
            GL11.glScalef(scale, scale, 1f);
        // ?? /* w ww . ja va  2  s  .co m*/
        node = null;
        is_2d_switched = true;
    }
}

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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);
}

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From source file:com.aelitis.azureus.plugins.view3d.ViewTest2.java

License:Open Source License

static void accFrustum(double left, double right, double bottom, double top, double near, double far,
        double pixdx, double pixdy, double eyedx, double eyedy, double focus) {
    double xwsize, ywsize;
    double dx, dy;
    int[] viewport = getViewport();

    xwsize = right - left;//from   w  w  w  .  j av a2s .c o m
    ywsize = top - bottom;
    dx = -(pixdx * xwsize / (double) viewport[2] + eyedx * near / focus);
    dy = -(pixdy * ywsize / (double) viewport[3] + eyedy * near / focus);

    GL11.glMatrixMode(GL11.GL_PROJECTION);
    GL11.glLoadIdentity();
    GL11.glFrustum(left + dx, right + dx, bottom + dy, top + dy, near, far);
    GL11.glMatrixMode(GL11.GL_MODELVIEW);
    GL11.glLoadIdentity();
    GL11.glTranslated(-eyedx, -eyedy, 0.0);
}

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From source file:com.aelitis.azureus.plugins.view3d.ViewTest2.java

License:Open Source License

public static void main(String[] args) {
    final Display display = new Display();
    Shell shell = new Shell(display);
    shell.setLayout(new FillLayout());
    Composite comp = new Composite(shell, SWT.NONE);
    comp.setLayout(new FillLayout());
    GLData data = new GLData();
    data.doubleBuffer = true;/*from w  ww  .j  a  v a  2s  .  co  m*/
    data.accumAlphaSize = 8;
    data.accumBlueSize = 8;
    data.accumGreenSize = 8;
    data.accumRedSize = 8;

    final GLCanvas canvas = new GLCanvas(comp, SWT.NONE, data);

    canvas.setCurrent();
    try {
        GLContext.useContext(canvas);
    } catch (LWJGLException e) {
        e.printStackTrace();
    }

    canvas.addListener(SWT.Resize, new Listener() {
        public void handleEvent(Event event) {
            Rectangle bounds = canvas.getBounds();
            float fAspect = (float) bounds.width / (float) bounds.height;
            canvas.setCurrent();
            try {
                GLContext.useContext(canvas);
            } catch (LWJGLException e) {
                e.printStackTrace();
            }
            GL11.glViewport(0, 0, bounds.width, bounds.height);
            GL11.glMatrixMode(GL11.GL_PROJECTION);
            GL11.glLoadIdentity();
            GLU.gluPerspective(45.0f, fAspect, 0.5f, 400.0f);
            GL11.glMatrixMode(GL11.GL_MODELVIEW);
            GL11.glLoadIdentity();
        }
    });

    GL11.glLineWidth(1);
    GL11.glHint(GL11.GL_LINE_SMOOTH_HINT, GL11.GL_NICEST);
    GL11.glEnable(GL11.GL_LINE_SMOOTH);
    GL11.glEnable(GL11.GL_BLEND);
    GL11.glHint(GL11.GL_PERSPECTIVE_CORRECTION_HINT, GL11.GL_NICEST);
    GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);

    GL11.glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
    GL11.glColor3f(1.0f, 0.0f, 0.0f);
    GL11.glHint(GL11.GL_PERSPECTIVE_CORRECTION_HINT, GL11.GL_NICEST);
    GL11.glClearDepth(1.0);
    GL11.glLineWidth(2);
    GL11.glEnable(GL11.GL_DEPTH_TEST);

    GL11.glShadeModel(GL11.GL_FLAT);

    GL11.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
    GL11.glClearAccum(0.0f, 0.0f, 0.0f, 0.0f);

    shell.setText("SWT/LWJGL Example");
    shell.setSize(640, 480);
    shell.open();

    final Runnable run = new Runnable() {
        float rot = 0;

        public void run() {
            if (!canvas.isDisposed()) {
                canvas.setCurrent();
                try {
                    GLContext.useContext(canvas);
                } catch (LWJGLException e) {
                    e.printStackTrace();
                }

                int ACSIZE = 8;

                int[] viewport = getViewport();

                GL11.glClear(GL11.GL_ACCUM_BUFFER_BIT);

                for (int jitter = 0; jitter < ACSIZE; jitter++) {
                    GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);

                    double jit_x = jits[jitter][0];
                    double jit_y = jits[jitter][1];

                    accPerspective(50.0, (double) viewport[2] / (double) viewport[3], 1.0, 15.0, jit_x, jit_y,
                            0.0, 0.0, 1.0);

                    {

                        GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
                        GL11.glClearColor(.3f, .5f, .8f, 1.0f);
                        GL11.glLoadIdentity();
                        GL11.glTranslatef(0.0f, 0.0f, -10.0f);
                        float frot = rot;
                        GL11.glRotatef(0.15f * rot, 2.0f * frot, 10.0f * frot, 1.0f);
                        GL11.glRotatef(0.3f * rot, 3.0f * frot, 1.0f * frot, 1.0f);
                        GL11.glPolygonMode(GL11.GL_FRONT_AND_BACK, GL11.GL_FILL);
                        GL11.glColor3f(0.9f, 0.9f, 0.9f);
                        drawCylinder(2, 3, 50, 0);
                        drawTorus(1, 1.9f + ((float) Math.sin((0.004f * frot))), 15, 15);
                    }

                    GL11.glAccum(GL11.GL_ACCUM, 1.0f / ACSIZE);
                }

                GL11.glAccum(GL11.GL_RETURN, 1.0f);
                GL11.glFlush();

                rot += 0.1;

                canvas.swapBuffers();
                display.asyncExec(this);
            }
        }
    };
    canvas.addListener(SWT.Paint, new Listener() {
        public void handleEvent(Event event) {
            run.run();
        }
    });
    display.asyncExec(run);

    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

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

License:Open Source License

/**
 * <code>print</code> renders the specified string to a given (x,y) location. The x, y location is in terms of
 * screen coordinates. There are currently two sets of fonts supported: NORMAL and ITALICS.
 * //from w  w  w .j a  v  a 2  s . c o m
 * @param r
 * 
 * @param x
 *            the x screen location to start the string render.
 * @param y
 *            the y screen location to start the string render.
 * @param text
 *            the String to render.
 * @param set
 *            the mode of font: NORMAL or ITALICS.
 */
public void print(final Renderer r, final double x, final double y, final ReadOnlyVector3 scale,
        final StringBuffer text, int set) {
    final RendererRecord matRecord = ContextManager.getCurrentContext().getRendererRecord();
    if (set > 1) {
        set = 1;
    } else if (set < 0) {
        set = 0;
    }

    final boolean alreadyOrtho = r.isInOrthoMode();
    if (!alreadyOrtho) {
        r.setOrtho();
    } else {
        LwjglRendererUtil.switchMode(matRecord, GL11.GL_MODELVIEW);
        GL11.glPushMatrix();
        GL11.glLoadIdentity();
    }
    GL11.glTranslated(x, y, 0);
    GL11.glScaled(scale.getX(), scale.getY(), scale.getZ());
    GL11.glListBase(base - 32 + (128 * set));

    // Put the string into a "pointer"
    if (text.length() > scratch.capacity()) {
        scratch = BufferUtils.createByteBuffer(text.length());
    } else {
        scratch.clear();
    }

    final int charLen = text.length();
    for (int z = 0; z < charLen; z++) {
        scratch.put((byte) text.charAt(z));
    }
    scratch.flip();
    GL11.glColor4f(fontColor.getRed(), fontColor.getGreen(), fontColor.getBlue(), fontColor.getAlpha());
    // call the list for each letter in the string.
    GL11.glCallLists(scratch);
    // set color back to white
    GL11.glColor4f(1, 1, 1, 1);

    if (!alreadyOrtho) {
        r.unsetOrtho();
    } else {
        LwjglRendererUtil.switchMode(matRecord, GL11.GL_MODELVIEW);
        GL11.glPopMatrix();
    }
}

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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.");
    }//  w  w w. j av a 2  s. com
    // 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;
}

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From source file:com.ardor3d.scene.state.lwjgl.LwjglTextureStateUtil.java

License:Open Source License

public static void applyTextureTransforms(final Texture texture, final int unit,
        final TextureStateRecord record, final ContextCapabilities caps) {
    final boolean needsReset = !record.units[unit].identityMatrix;

    // Should we apply the transform?
    final boolean doTrans = !texture.getTextureMatrix().isIdentity();

    // Now do them.
    final RendererRecord matRecord = ContextManager.getCurrentContext().getRendererRecord();
    if (doTrans) {
        checkAndSetUnit(unit, record, caps);
        LwjglRendererUtil.switchMode(matRecord, GL11.GL_TEXTURE);

        record.tmp_matrixBuffer.rewind();
        texture.getTextureMatrix().toDoubleBuffer(record.tmp_matrixBuffer, true);
        record.tmp_matrixBuffer.rewind();
        GL11.glLoadMatrix(record.tmp_matrixBuffer);

        record.units[unit].identityMatrix = false;
    } else if (needsReset) {
        checkAndSetUnit(unit, record, caps);
        LwjglRendererUtil.switchMode(matRecord, GL11.GL_TEXTURE);
        GL11.glLoadIdentity();
        record.units[unit].identityMatrix = true;
    }//  w  w w  .j a va  2 s  . c om
    // Switch back to the modelview matrix for further operations
    LwjglRendererUtil.switchMode(matRecord, GL11.GL_MODELVIEW);
}

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From source file:com.badlogic.gdx.backends.lwjgl.LwjglGL10.java

License:Apache License

public final void glLoadIdentity() {
    GL11.glLoadIdentity();
}

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From source file:com.dbi.games.fortress.engine.MainEngine.java

License:Open Source License

/**
 * Should ONLY be invoked from the GL thread!
 *///from   w  ww .  jav a  2s . c  o m
public void renderScene(long deltaNanos) {
    if (!isReady)
        return;
    currentTickLengthNanos += deltaNanos;
    nanosSinceStatsUpdate += deltaNanos;

    framesSinceStatsUpdate++;

    if (currentTickLengthNanos >= targetTickLengthNanos) {
        tick();
    }

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

    graphicsEngine.renderMap(currentMap);
    for (Entity ent : entityEngine.findAll()) {
        graphicsEngine.renderEntity(ent);
    }

    if (nanosSinceStatsUpdate > NANOS_PER_STAT_UPDATE) {
        controlWindow.setFPS(framesSinceStatsUpdate * 4);
        controlWindow.setTPS(ticksSinceStatsUpdate * 4, ticksPerSecondTarget);
        framesSinceStatsUpdate = 0;
        ticksSinceStatsUpdate = 0;
        nanosSinceStatsUpdate = 0;
    }
}

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From source file:com.dbi.games.fortress.ui.MainAppWindow.java

License:Open Source License

/**
 * Creates new form MainAppWin//from  w ww .ja v  a 2 s . co m
 */
public MainAppWindow() {
    initComponents();

    glCanvas.addComponentListener(new ComponentListener() {
        public void componentShown(ComponentEvent e) {
            setNeedValidation();
        }

        public void componentResized(ComponentEvent e) {
            setNeedValidation();
        }

        public void componentMoved(ComponentEvent e) {
            setNeedValidation();
        }

        public void componentHidden(ComponentEvent e) {
            setNeedValidation();
        }
    });

    File currentDir = new File("lib/natives");
    if (!currentDir.exists()) {
        //            JOptionPane.showMessageDialog(null, "directory location: "+currentDir.getAbsolutePath()+" does not exist!");
        currentDir = new File("build/libs/natives");
    }
    Logger.getLogger("LWJGLThread").log(Level.INFO, "LWJGL directory is " + currentDir.getAbsolutePath());

    System.setProperty("org.lwjgl.librarypath", currentDir.getAbsolutePath());

    Thread glThread = new Thread("GLThread") {

        @Override
        public void run() {
            long lastFrame = System.nanoTime();
            long currentFrame;
            try {
                Display.setParent(glCanvas);
                Display.create();

                GL11.glEnable(GL11.GL_TEXTURE_2D);
                GL11.glEnable(GL11.GL_BLEND);
                GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
                GL11.glDisable(GL11.GL_DEPTH_TEST);
                GL11.glClearColor(0f, 0f, 0f, 0f);
                GL11.glMatrixMode(GL11.GL_PROJECTION);
                GL11.glLoadIdentity();
                GL11.glOrtho(0f, (float) glCanvas.getWidth(), (float) glCanvas.getHeight(), 0f, -1, 1);
                GL11.glMatrixMode(GL11.GL_MODELVIEW);
                GL11.glLoadIdentity();
                GL11.glViewport(0, 0, glCanvas.getWidth(), glCanvas.getHeight());

                MainEngine.get().graphicsEngine().buildDefaultRenderers();

                while (MainEngine.get().isRunning()) {
                    try {
                        currentFrame = System.nanoTime();

                        MainEngine.get().renderScene(currentFrame - lastFrame);

                        lastFrame = currentFrame;

                        Display.update();

                        if (needUpdateViewport) {
                            needUpdateViewport = false;

                            GL11.glMatrixMode(GL11.GL_PROJECTION);
                            GL11.glLoadIdentity();
                            GL11.glOrtho(0, glCanvas.getWidth(), glCanvas.getHeight(), 0, -1, 1);
                            GL11.glViewport(0, 0, glCanvas.getWidth(), glCanvas.getHeight());
                        }
                    } catch (Throwable ex) {
                        ex.printStackTrace();
                        Logger.getLogger("LWJGLThread").log(Level.SEVERE,
                                "There was a SEROUS uncaught error in the render thread.  Shutting down.  Please restart!",
                                ex);
                        MainEngine.get().shutdown();
                    }
                }
            } catch (Throwable ex) {
                throw new RuntimeException("There was an issue starting LWJGL!", ex);
            }
        }

    };
    glThread.start();
}

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