C++ Perlin::setSeed方法代码示例

void Day59App::draw()
{
    gl::setMatrices(mCam);
    gl::clear( Color( 0.1, 0.1, 0.1 ) );
    gl::color(Color(0.,0.,0.));
    gl::clear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT );
    mCam.setEyePoint(vec3(0.,0.,fabs(cos(omega) * 50.f)));
  mPerlin.setSeed(getElapsedFrames());
    
    // enable stencil test to be able to give the stencil buffers values.
    gl::ScopedState scopeStencil( GL_STENCIL_TEST, true );
  //  gl::rotate(angleAxis(theta/2, vec3(0.,1.,0.)));
    for (int i =0; i <NUM_OBJS; i++)
    {
        
        vec3 noise = mPerlin.dfBm(mRandomPositions[i]);
    
        gl::ScopedMatrices scpMtx;
        gl::translate(mRandomPositions[i]);
        
    
        {
            gl::ScopedMatrices push;
            gl::rotate(angleAxis(theta + mOffsets[i], vec3(1.0, 0., 0.)));
            gl::translate(mRandomPositions[i]);
            gl::scale(mScales[i]);
            
            //DRAW THE MAIN OBJECT (1ST RENDER PASS) AS NORMAL, FILL THE STENCIL BUFFER
            gl::stencilFunc(GL_ALWAYS, 1, 0xFF); //ALL FRAGMENTS MUST UPDATE THE STENCIL BUFFER
            gl::stencilMask(0xFF); //ENABLE WRITING TO THE STENCIL BUFFER
            mObject->draw();
        }
        
        //IF THE STENCIL TEST FAILS, KEEP THE FRAGMENT
        //IF STENCIL PASSES AND DEPTH FAILS, KEEP THE FRAGMENT
        //IF THE DEPTH TEST AND STENCIL TEST PASS, REPLACE THE FRAGMENT
        glStencilOp(GL_KEEP  , GL_KEEP, GL_REPLACE);
        
        //2ND RENDER PASS - DRAW OBJECT SLIGHTLY BIGGER, BUT DISABLE STENCIL WRITING.  BECAUSE THE STENCIL BUFFER IS FILLED WITH 1s (PARTICULARLY IN THE AREA OF THE ORIGINAL OBJECT), THE ONLY THING THAT WILL BE DRAWN IS THE AREA OF THE 2ND OBJECT, IE. THE SIZE DIFFERENCE
        
        gl::stencilFunc(GL_NOTEQUAL, 1, 0xFF); //don't update the stencil buffer
        gl::stencilMask(0x00);
        gl::disable(GL_DEPTH_TEST);
        {
            gl::ScopedMatrices push;
            gl::rotate(angleAxis(theta + mOffsets[i], vec3(1.0, 0., 0.)));
            gl::translate(mRandomPositions[i]);
            
            gl::scale(vec3(mScales[i] + vec3(0.1) ));
            
            mBorderObject->draw();
        }
    
    }
    
    gl::stencilMask(0xFF);
    gl::enable(GL_DEPTH_TEST);
  //  saveGif();
    
}

void LookAroundYouApp::setup()
{
	Rand::randomize();
	
    mVolume = 1.0;
    
    // Setup GUI
	getWindow()->setTitle("MPCDigital App");
	mParams = params::InterfaceGl( "Settings", Vec2i( 300, 200 ) );
	mParams.addParam( "Framerate", &mFrameRate, "", true );
    mParams.addSeparator();
    mParams.addParam("Speed", &Boid::speedMultiplier, "min=0.5 max=5.0 step=0.01");
    mParams.addParam("Radius", &Boid::radiusMultiplier, "min=0.5 max=5.0 step=0.01");
    mParams.addParam("Range", &Boid::range, "min=10.0 max=100 step=0.1");
    mParams.addSeparator();
    mParams.addParam("Master Volume", &mVolume, "min=0 max=1.0 step=0.01");
    
    
    // Setup Audio
    AudioDevice::printDeviceMap();
    mAudioDevice = make_shared<AudioDevice>();
    mAudioDevice->setup(0);
    mAudioDevice->setAmbientReverb(FMOD_PRESET_UNDERWATER);
    console() << "Channels Available: " << mAudioDevice->getNumRemainingChannels() << endl;
    
    DataSourceRef data = loadAsset("music/Music For Airports - 1 1.mp3");
    string musicName = mAudioDevice->registerSound(data, true, false, true);
    music = mAudioDevice->getSoundInstance(musicName, 1.0);
    music->pause();
    
    fxnames.push_back(mAudioDevice->registerSound(loadAsset("fx/blue.aif"), true, true));
    fxnames.push_back(mAudioDevice->registerSound(loadAsset("fx/fliup.aif"), true, true));
    fxnames.push_back(mAudioDevice->registerSound(loadAsset("fx/green.aif"), true, true));
    fxnames.push_back(mAudioDevice->registerSound(loadAsset("fx/howl.wav"), true, true));
    fxnames.push_back(mAudioDevice->registerSound(loadAsset("fx/orange.aif"), true, true));
    fxnames.push_back(mAudioDevice->registerSound(loadAsset("fx/red.aif"), true, true));
    fxnames.push_back(mAudioDevice->registerSound(loadAsset("fx/white.aif"), true, true));
    fxnames.push_back(mAudioDevice->registerSound(loadAsset("fx/yellow.aif"), true, true));
    
    // Setup noise generator to drive Boid motion
    mPerlin = new Perlin();
    mPerlin->setSeed(clock());
	mPerlin->setOctaves(1);
    
    // Construct Boids
    for(int i=0; i<10; i++) {
        int n = Rand::randInt(0, fxnames.size());
        SoundInstanceRef fx = mAudioDevice->getSoundInstance(fxnames[n], 1.0);
        BoidRef boid = make_shared<Boid>(mPerlin, fx);
        mBoids.push_back(boid);
    }
    
	
	// enable the depth buffer (for 3D)
	gl::enableDepthRead();
	gl::enableDepthWrite();
    gl::enableAlphaBlending();
}

void cApp::setup(){
    mExp.setup(1920, 1080, 0, 100-1, GL_RGB, mt::getRenderPath(), 0, "test" );
    setWindowSize( 1920, 1080 );
    setWindowPos(0, 0);
    
    mPln.setSeed( 345 );
    mPln.setOctaves( 4 );
    
    cam = CameraPersp(1920, 1080, 55, 0.1, 100000);
    eye = vec3(0,0,1000);
    cam.lookAt(eye, vec3(0,0,0));
    camui.setCamera(&cam);
}

void BasicParticleApp::setup()
{
	mPerlin.setSeed( clock() );

	mAnimationCounter = 0;
	for( int s = 0; s < NUM_INITIAL_PARTICLES; ++s )
		mParticles.push_back( Particle( Vec2f( Rand::randFloat( getWindowWidth() ), Rand::randFloat( getWindowHeight() ) ) ) );

	CONSERVATION_OF_VELOCITY = 0.9f;
	SPEED = 5.0f;

	// Turn on additive blending
	gl::enableAlphaBlending();
}

void cApp::setup(){
    
    setWindowPos( 0, 0 );
    setWindowSize( mW*0.5, mH*0.5 );
    mExp.setup( mW*mScale, mH*mScale,0, 2999, GL_RGB, mt::getRenderPath() );
    
    mPln.setOctaves(4);
    mPln.setSeed(1332);

    randSeed( mt::getSeed() );
    
    int count = 0;
    for( int i=0; i<100; i++){
        StrangeAgent sa;
        sa.setRandom();
        mSAs.push_back( sa );

        for(int j=0; j<sa.points.size(); j++){
            mPlnPts.push_back( Vec3f(count*scale,0,0) );
            count++;
        }
    }
    
    total = count;
    
    if( 1 ){
        CameraPersp cam;
        cam.setNearClip(0.1);
        cam.setFarClip(1000000);
        cam.setFov(60);
        cam.setEyePoint( Vec3f(0,0,-30 ) );
        cam.setCenterOfInterestPoint( Vec3f(0,0,0) );
        cam.setAspectRatio( (float)mW/mH );
        mCamUi.setCurrentCam(cam);
    }else{
        ortho.setNearClip(0.1);
        ortho.setFarClip(1000000);
        ortho.setEyePoint( Vec3f(0,0,-7 ) );
        ortho.setCenterOfInterestPoint( Vec3f(0,0,0) );
        ortho.setAspectRatio( (float)mW/mH );
    }
    
#ifdef RENDER
    mExp.startRender();
#endif
}

void cApp::setup(){
    setFrameRate( 25 );
    setWindowPos( 0, 0 );
    setWindowSize( mW*mScale, mH*mScale );
    mExp.setup( mW*mScale, mH*mScale, 0, 2999, GL_RGB, mt::getRenderPath() );
    
    mPln.setOctaves( 3 );
    mPln.setSeed( 551 );
    
    mt::loadColorSample("img/Mx80_2_org_B.jpg", mColorSample1 );
    mt::loadColorSample("img/Mx80_2_org_B.jpg", mColorSample2 );

    
    {
        // Audio Setup
        auto ctx = audio::Context::master();
        audio::DeviceRef device = audio::Device::getDefaultOutput();
        audio::Device::Format format;
        format.sampleRate( 192000 );
        format.framesPerBlock( mFpb );
        device->updateFormat( format );
        
        cout << "--- Audio Setting --- " << endl;
        cout << "device name      : " << device->getName() << endl;
        cout << "Sample Rate      : " << ctx->getSampleRate() << endl;
        cout << "frames per Block : " << ctx->getFramesPerBlock() << endl;

        mWaves.assign( 7, Wave() );
        
        for( int i=0; i<mWaves.size(); i++ ){
            mWaves[i].create( "snd/test/3s1e_192k_" + toString(i+1)+ ".wav" );
        }

        ctx->enable();
    }
    
    
#ifdef RENDER
    mExp.startRender();
#endif

}

void cApp::setup(){
    
    setWindowPos( 0, 0 );
    setWindowSize( 1080*3*0.5, 1920*0.5 );
    mExp.setup( 1080*3, 1920, 3000, GL_RGB, mt::getRenderPath(), 0);
    
    CameraPersp cam(1080*3, 1920, 54.4f, 0.1, 10000 );
    cam.lookAt( Vec3f(0,0, 1600), Vec3f(0,0,0) );
    cam.setCenterOfInterestPoint( Vec3f(0,0,0) );
    camUi.setCurrentCam( cam );
    
    mPln.setSeed(123);
    mPln.setOctaves(4);
    
    fs::path assetPath = mt::getAssetPath();
    
    {
        // make VectorMap
        Surface32f sAspect( loadImage(assetPath/("img/00/halpha3000_aspect_32bit.tif")) );
        Surface32f sSlope( loadImage(assetPath/("img/00/halpha3000_slope1.tif")) );

        int w = sAspect.getWidth();
        int h = sAspect.getHeight();
        
        mVecMap.assign(w, vector<Vec2f>(h) );

        for( int i=0; i<sAspect.getWidth(); i++) {
            for( int j=0; j<sAspect.getHeight(); j++ ) {
                
                Vec2i pos(i, j);
                float aspect = *sAspect.getDataRed( pos );
                float slope = *sSlope.getDataRed( pos );
                if( slope!=0 && aspect!=-9999 ){

                    Vec2f vel( 0, slope*10.0 );
                    vel.rotate( toRadians(aspect) );
                    mVecMap[i][j] = vel;
                }else{
                    mVecMap[i][j] = Vec2f::zero();
                }
                
                mVelocity.push_back( Vec3f(mVecMap[i][j].x, mVecMap[i][j].y, 0) );
            }
        }
    }
    
    {
        // make point from intensity
        Surface32f sIntensity( loadImage(assetPath/("img/00/halpha3000-skv3264879915580.tiff")) );
        intensityW = sIntensity.getWidth();
        intensityH = sIntensity.getHeight();
        
        Surface32f::Iter itr = sIntensity.getIter();
        float threashold = 0.15;
        float extrusion = 300;
        while ( itr.line() ) {
            while( itr.pixel() ){
                float gray = itr.r();
                if( threashold < gray ){
                    Vec2i pos = itr.getPos();
                    Vec3f v(pos.x, pos.y, gray*extrusion );
                    Vec3f noise = mPln.dfBm( Vec3f(pos.x, pos.y, gray) ) * 2.0;
                    ps.push_back( v + noise );
                    float c = gray + 0.2f;
                    float a = lmap(c, 0.0f, 1.0f, 0.3f, 0.7f);
                    cs.push_back( ColorAf(c, c, c, a) );
                }
            }
        }
        
        
        mPoints = gl::VboMesh( ps.size(), 0, mt::getVboLayout(), GL_POINTS );
        gl::VboMesh::VertexIter vitr( mPoints );
        for(int i=0; i<ps.size(); i++ ){
            vitr.setPosition( ps[i] );
            vitr.setColorRGBA( cs[i] );

            ++vitr;
        }
    }
    
    
    mExp.startRender();
    bStart = true;
    
}