Example usage for javax.microedition.khronos.opengles GL10 GL_SRC_ALPHA

Introduction

In this page you can find the example usage for javax.microedition.khronos.opengles GL10 GL_SRC_ALPHA.

Prototype

int GL_SRC_ALPHA

To view the source code for javax.microedition.khronos.opengles GL10 GL_SRC_ALPHA.

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Usage

From source file:com.androidbrasilprojetos.games.spacehero.scenes.SplashScene.java

@Override
public void init() {
    splash = new Sprite(0, 0, splashTextureRegion, this.mEngine.getVertexBufferObjectManager()) {
        @Override//from  ww w.  j a  va 2s .c om
        protected void preDraw(GLState pGLState, Camera pCamera) {
            super.preDraw(pGLState, pCamera);
            pGLState.enableDither();
        }
    };
    abpSplash = new Sprite(0, 0, abpSplashTextureRegion, this.mEngine.getVertexBufferObjectManager()) {
        @Override
        protected void preDraw(GLState pGLState, Camera pCamera) {
            super.preDraw(pGLState, pCamera);
            pGLState.enableDither();
        }
    };

    splash.setBlendFunction(GL10.GL_SRC_ALPHA, GL10.GL_ONE_MINUS_SRC_ALPHA);
    abpSplash.setBlendFunction(GL10.GL_SRC_ALPHA, GL10.GL_ONE_MINUS_SRC_ALPHA);

    splash.setPosition((this.mEngine.getCamera().getWidth() - splash.getWidth()) * 0.5f,
            (this.mEngine.getCamera().getHeight() - splash.getHeight()) * 0.5f);
    splash.setAlpha(0);

    AlphaModifier alpha = new AlphaModifier(2, 0, 1, new IEntityModifierListener() {

        @Override
        public void onModifierStarted(IModifier<IEntity> pModifier, IEntity pItem) {
            // TODO Auto-generated method stub

        }

        @Override
        public void onModifierFinished(IModifier<IEntity> pModifier, IEntity pItem) {
            // TODO Auto-generated method stub
            abpSplash.registerEntityModifier(new AlphaModifier(2, 1, 0));
            splash.registerEntityModifier(new AlphaModifier(2, 0, 1));
        }
    });
    abpSplash.setPosition((this.mEngine.getCamera().getWidth() - abpSplash.getWidth()) * 0.5f,
            (this.mEngine.getCamera().getHeight() - abpSplash.getHeight()) * 0.5f);
    abpSplash.setAlpha(0);
    abpSplash.registerEntityModifier(alpha);

    this.attachChild(abpSplash);
    this.attachChild(splash);
}

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From source file:eu.sathra.SathraActivity.java

@SuppressLint("WrongCall")
@Override/*from   w w  w  .  j a  va2s . com*/
public void onDrawFrame(GL10 gl) {
    gl.glViewport(0, 0, this.getScreenWidth(), this.getScreenHeight());
    // Update time variables
    mTimeDelta = System.currentTimeMillis() - mLastDrawTimestamp;
    mLastDrawTimestamp = System.currentTimeMillis();
    mTime += mTimeDelta;
    mVirtualTimeDelta = (long) (mTimeDelta * getTimeScale());
    mVirtualTime += mVirtualTimeDelta;

    // Setup defaults
    gl.glBindTexture(GL10.GL_TEXTURE_2D, 0);
    GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0);

    // Clear BG
    float r = (float) Color.red(mParams.bgColor) / 255;
    float g = (float) Color.green(mParams.bgColor) / 255;
    float b = (float) Color.blue(mParams.bgColor) / 255;
    float a = (float) Color.alpha(mParams.bgColor) / 255;
    gl.glClearColor(r, g, b, a);
    gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);

    gl.glBlendFunc(GL10.GL_SRC_ALPHA, GL10.GL_ONE_MINUS_SRC_ALPHA);
    GLES20.glBlendEquation(GLES20.GL_FUNC_ADD);

    gl.glMatrixMode(GL10.GL_TEXTURE);
    gl.glLoadIdentity();

    gl.glMatrixMode(GL10.GL_MODELVIEW);
    gl.glLoadIdentity();

    // gl.glEnable(GL10.GL_BLEND);
    gl.glBlendFunc(GL10.GL_ONE, GL10.GL_ONE_MINUS_SRC_ALPHA);

    mRootNode.onDraw(gl, mVirtualTime, mVirtualTimeDelta);

    // Draw lights and shadows
    gl.glMatrixMode(GL10.GL_TEXTURE);
    gl.glLoadIdentity();
    gl.glScalef(1, -1, 1); // Frame Buffers are upside down
    gl.glMatrixMode(GL10.GL_MODELVIEW);

    CameraNode activeCam = CameraNode.getActiveCamera();

    if (activeCam != null) {
        shad.setPosition(0, 0);// this.getResolutionWidth()/2,
        // this.getResolutionHeight()/2);//activeCam.getAbsoluteX(),
        // activeCam.getAbsoluteY());
    }

    gl.glBlendFunc(GL10.GL_DST_COLOR, GL10.GL_ONE_MINUS_SRC_ALPHA);

    shad.draw(gl);

    gl.glViewport(0, 0, this.getResolutionWidth(), this.getResolutionHeight()); // SDfDSFSDFS
    GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, buf[0]);
    GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0, GLES20.GL_TEXTURE_2D,
            tex[0], 0);

    // Clear shadow
    r = (float) Color.red(mParams.ambientColor) / 255;
    g = (float) Color.green(mParams.ambientColor) / 255;
    b = (float) Color.blue(mParams.ambientColor) / 255;
    a = (float) Color.alpha(mParams.ambientColor) / 255;

    gl.glClearColor(r, g, b, a);
    GLES20.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);

    // TODO: CONCURENT MOD EXCEPTION
    try {
        Dyn4jPhysics.getInstance().getWorld().updatev(mVirtualTimeDelta * MILISECONDS_TO_SECONDS);
    } catch (ConcurrentModificationException e) {

    }

    // if (mIsRunning)
    onUpdate(mVirtualTime, mVirtualTimeDelta);

    // Update fps counter
    mFPS = 1000f / mTimeDelta;

    // mDebugView.postInvalidate();

    // System.gc();
}

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From source file:com.watabou.noosa.Game.java

@Override
public void onSurfaceCreated(GL10 gl, EGLConfig config) {
    GLES20.glEnable(GL10.GL_BLEND);/*from  w w  w .  j  a v a  2 s  .co m*/
    GLES20.glBlendFunc(GL10.GL_SRC_ALPHA, GL10.GL_ONE_MINUS_SRC_ALPHA);

    GLES20.glEnable(GL10.GL_SCISSOR_TEST);

    paused = false;

    SystemText.invalidate();
    TextureCache.reload();

    if (scene != null) {
        scene.resume();
    }
}

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