Example usage for org.lwjgl.opengl GL11 glAccum

Introduction

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

Prototype

public static native void glAccum(@NativeType("GLenum") int op, @NativeType("GLfloat") float value);

Source Link

Document

Each portion of a pixel in the accumulation buffer consists of four values: one for each of R, G, B, and A.

Usage

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  .com*/
    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:tk.ivybits.engine.gl.GL.java

License:Open Source License

public static void glAccum(int a, float b) {
    GL11.glAccum(a, b);
}

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