void gpgpuFrameBufferApp::draw()
{
gl::clear( Color( 0, 0, 0 ) );
gl::viewport(getWindowSize());
gl::setMatricesWindow( getWindowSize() );
gl::enableAdditiveBlending();
//using scoped
{
gl::ScopedTextureBind t0(mBuffer->getTexture(), 0);
gl::ScopedTextureBind t1(mTexture, 1);
gl::ScopedGlslProg sh(shaderRefraction);
shaderRefraction->uniform( "pixel", vec2(1.0f)/vec2(mBuffer->getSize()) );
shaderRefraction->uniform( "texBuffer", 0 );
shaderRefraction->uniform( "texRefract", 1 );
gl::drawSolidRect(getWindowBounds());
}
mBuffer->draw();
}
void gpgpuFrameBufferApp::update()
{
//Using bind call
mBuffer->bindBuffer();
gl::viewport(mBuffer->getSize());
gl::setMatricesWindow( mBuffer->getSize() );
gl::clear();
mBuffer->bindTexture();
{
shader->bind();
shader->uniform( "pixel", vec2(1.0f)/vec2(mBuffer->getSize()) );
shader->uniform( "texBuffer", 0 );
gl::color(Color::white());
gl::drawSolidRect(Rectf(vec2(0.0f),mBuffer->getSize()));
}
mBuffer->unbindTexture();
if(mMouseDown)
{
gl::getStockShader(gl::ShaderDef().color())->bind();
//Red channel will host the injected force from mouse position
gl::color( ColorAf( 1.0f, 0.0f, 0.0f, 1.0f ) );
gl::drawSolidCircle( ( mMousePos ), 5.0f );
gl::color( Color::white() );
}
mBuffer->unbindBuffer(true);
}
void TextParticlesApp::update()
{
if( !mActive )
return;
// Update particles on the GPU
gl::ScopedGlslProg prog( mUpdateProg );
gl::ScopedState rasterizer( GL_RASTERIZER_DISCARD, true ); // turn off fragment stage
mPerlin3dTex->bind(0);
mUpdateProg->uniform( "uPerlinTex", 0 );
mUpdateProg->uniform( "uStep", mStep.value() );
mUpdateProg->uniform( "uDampingSpeed", mDampingSpeed );
mUpdateProg->uniform( "uNoiseOffset", mNoiseOffset );
mUpdateProg->uniform( "uEndColor", mEndColor );
// Bind the source data (Attributes refer to specific buffers).
gl::ScopedVao source( mAttributes[mSourceIndex] );
// Bind destination as buffer base.
gl::bindBufferBase( GL_TRANSFORM_FEEDBACK_BUFFER, 0, mParticleBuffer[mDestinationIndex] );
gl::beginTransformFeedback( GL_POINTS );
// Draw source into destination, performing our vertex transformations.
gl::drawArrays( GL_POINTS, 0, mTextParticleCount );
gl::endTransformFeedback();
mPerlin3dTex->unbind();
// Swap source and destination for next loop
std::swap( mSourceIndex, mDestinationIndex );
}
void MotionBlurVelocityBufferApp::dilateVelocity()
{
gl::ScopedFramebuffer fbo( mVelocityDilationBuffer );
gl::ScopedViewport viewport( ivec2( 0, 0 ), mVelocityDilationBuffer->getSize() );
gl::ScopedMatrices matrices;
gl::setMatricesWindowPersp( mVelocityDilationBuffer->getSize() );
{ // downsample velocity into tilemax
gl::ScopedTextureBind tex( mGBuffer->getTexture2d( G_VELOCITY ), 0 );
gl::ScopedGlslProg prog( mTileProg );
gl::drawBuffer( DILATE_TILE_MAX );
mTileProg->uniform( "uVelocityMap", 0 );
mTileProg->uniform( "uTileSize", mTileSize );
gl::drawSolidRect( mVelocityDilationBuffer->getBounds() );
}
{ // build max neighbors from tilemax
gl::ScopedTextureBind tex( mVelocityDilationBuffer->getTexture2d( DILATE_TILE_MAX ), 0 );
gl::ScopedGlslProg prog( mNeighborProg );
gl::drawBuffer( DILATE_NEIGHBOR_MAX );
mNeighborProg->uniform( "uTileMap", 0 );
gl::drawSolidRect( mVelocityDilationBuffer->getBounds() );
}
}
void AudioVisualizerApp::draw()
{
gl::clear();
// use camera
gl::pushMatrices();
gl::setMatrices( mCamera );
{
// bind shader
gl::ScopedGlslProg shader( mShader );
mShader->uniform( "uTexOffset", mOffset / float( kHistory ) );
mShader->uniform( "uLeftTex", 0 );
mShader->uniform( "uRightTex", 1 );
// create textures from our channels and bind them
mTextureLeft = gl::Texture2d::create( mChannelLeft, mTextureFormat );
mTextureRight = gl::Texture2d::create( mChannelRight, mTextureFormat );
gl::ScopedTextureBind tex0( mTextureLeft, 0 );
gl::ScopedTextureBind tex1( mTextureRight, 1 );
// draw mesh using additive blending
gl::ScopedBlendAdditive blend;
gl::ScopedColor color( 1, 1, 1 );
gl::draw( mMesh );
}
gl::popMatrices();
}
void ShadowMappingBasic::draw()
{
renderDepthFbo();
gl::clear( Color::black() );
gl::setMatrices( mCam );
gl::ScopedTextureBind texScope( mShadowMapTex, (uint8_t) 0 );
vec3 mvLightPos = vec3( gl::getModelView() * vec4( mLightPos, 1.0f ) ) ;
mat4 shadowMatrix = mLightCam.getProjectionMatrix() * mLightCam.getViewMatrix();
mGlsl->uniform( "uShadowMap", 0 );
mGlsl->uniform( "uLightPos", mvLightPos );
mGlsl->uniform( "uShadowMatrix", shadowMatrix );
drawScene( false );
// Uncomment for debug
/*
gl::setMatricesWindow( getWindowSize() );
gl::color( 1.0f, 1.0f, 1.0f );
float size = 0.5f*std::min( getWindowWidth(), getWindowHeight() );
gl::draw( mShadowMapTex, Rectf( 0, 0, size, size ) );
*/
}
void SphericalStereoApp::update()
{
if( mRift ) {
hmd::ScopedRiftBuffer bind{ mRift };
gl::clear();
for( auto eye : mRift->getEyes() ) {
mRift->enableEye( eye );
const auto& pano = mPanos.at( mPanoIndex );
mStereoGlsl->uniform( "uDisplayMode", pano.mDisplayMode );
mStereoGlsl->uniform( "uRightEye", static_cast<int>(eye) );
gl::ScopedTextureBind tex0( pano.mLatLong );
mSphere->draw();
{
auto size = mRift->getFboSize();
gl::ScopedMatrices push;
gl::setMatricesWindow( size.x / 2, size.y );
vec3 latencies = mRift->getLatencies();
stringstream ss;
ss << mPanos.at( mPanoIndex ).mName << std::endl;
ss << " " << std::endl;
ss << "App fps: " << toString( getAverageFps() ) << std::endl;
ss << "Ren: " << latencies.x << std::endl;
ss << "TWrp: " << latencies.y << std::endl;
ss << "PostPresent: " << latencies.z << std::endl;
auto tbox = TextBox().text( ss.str() ).font( Font( "Arial", 20.0f ) ).color( Color::white() ).backgroundColor( Color::black() );
gl::draw( gl::Texture2d::create( tbox.render() ), vec2( size.x / 3, size.y / 2 ) );
}
}
}
}
void BayBridgeApp::drawBridge(vec3 pColor, float pAmbient)
{
mShaderDiffuse->bind();
mShaderDiffuse->uniform("uColor", pColor);
mShaderDiffuse->uniform("uAmbient", pAmbient);
gl::drawCube(vec3(0, -2, 0), vec3(1050, 5, 30));
gl::drawCube(vec3(500, -25, 0), vec3(30,50,30));
gl::drawCube(vec3(-500, -25, 0), vec3(30, 50, 30));
gl::drawCube(vec3(0, 30, 0), vec3(5, 180, 50));
}
void GeometryApp::draw()
{
// Prepare for drawing.
gl::clear();
gl::setMatrices( mCamera );
// Draw the grid.
if( mShowGrid && mGrid ) {
gl::ScopedGlslProg scopedGlslProg( gl::context()->getStockShader( gl::ShaderDef().color() ) );
// draw the coordinate frame with length 2.
gl::drawCoordinateFrame( 2 );
mGrid->draw();
}
if( mPrimitive ) {
gl::ScopedTextureBind scopedTextureBind( mTexture );
mPhongShader->uniform( "uTexturingMode", mTexturingMode );
// Rotate it slowly around the y-axis.
gl::ScopedModelMatrix matScope;
gl::rotate( float( getElapsedSeconds() / 5 ), 0, 1, 0 );
// Draw the normals.
if( mShowNormals && mPrimitiveNormalLines ) {
gl::ScopedColor colorScope( Color( 1, 1, 0 ) );
mPrimitiveNormalLines->draw();
}
// Draw the primitive.
gl::ScopedColor colorScope( Color( 0.7f, 0.5f, 0.3f ) );
if( mViewMode == WIREFRAME ) {
// We're using alpha blending, so render the back side first.
gl::ScopedAlphaBlend blendScope( false );
gl::ScopedFaceCulling cullScope( true, GL_FRONT );
mWireframeShader->uniform( "uBrightness", 0.5f );
mPrimitiveWireframe->draw();
// Now render the front side.
gl::cullFace( GL_BACK );
mWireframeShader->uniform( "uBrightness", 1.0f );
mPrimitiveWireframe->draw();
}
else
mPrimitive->draw();
}
// Render the parameter window.
#if ! defined( CINDER_GL_ES )
if( mParams )
mParams->draw();
#endif
}
void GeometryShaderIntroApp::draw()
{
gl::clear();
gl::setMatricesWindow( getWindowWidth(), getWindowHeight() );
gl::translate( getWindowCenter() );
gl::ScopedGlslProg glslProg( mGlsl );
mGlsl->uniform( "uNumSides", mNumSides );
mGlsl->uniform( "uRadius", mRadius );
mBatch->draw();
}
void BayBridgeApp::setup()
{
mGUI = params::InterfaceGl::create("Params", ivec2(300, 50));
mParamInvert = false;
mParamClear = true;
mGUI->addParam<bool>("paramInvert", &mParamInvert).optionsStr("label='Inverted'");
mGUI->addParam<bool>("paramClear", &mParamClear).optionsStr("label='Clear Frame'");
getWindow()->setSize(1280, 720);
getWindow()->setPos(ivec2(20));
setFrameRate(60);
mBridgeShader = gl::GlslProg::create(loadAsset("shaders/light_vert.glsl"), loadAsset("shaders/light_frag.glsl"));
mBridge.Init(mBridgeShader);
mCamera.setPerspective(45.0f, getWindowAspectRatio(), 10.0f, 10000.0f);
mCamera.lookAt(vec3(0, 50, -525), vec3(0,50,0), vec3(0, 1, 0));
mCamUi = CameraUi(&mCamera, getWindow());
mDS = CinderDSAPI::create();
mDS->init();
mDS->initDepth(FrameSize::DEPTHSD, 60);
mDS->start();
ImageSourceRef skybox[6]
{
loadImage(loadAsset("textures/px04.png")), loadImage(loadAsset("textures/nx04.png")),
loadImage(loadAsset("textures/py04.png")), loadImage(loadAsset("textures/ny04.png")),
loadImage(loadAsset("textures/pz04.png")), loadImage(loadAsset("textures/nz04.png"))
};
mTexSkybox = gl::TextureCubeMap::create(skybox);
mShaderSkybox = gl::GlslProg::create(loadAsset("shaders/skybox_vert.glsl"), loadAsset("shaders/skybox_frag.glsl"));
mBatchSkybox = gl::Batch::create(geom::Cube(), mShaderSkybox);
mBatchSkybox->getGlslProg()->uniform("uCubemapSampler", 0);
mShaderDiffuse = gl::GlslProg::create(loadAsset("shaders/diffuse_vert.glsl"), loadAsset("shaders/diffuse_frag.glsl"));
//Bloom
mFboRaw = gl::Fbo::create(1280, 720, gl::Fbo::Format().colorTexture(gl::Texture2d::Format().dataType(GL_FLOAT).internalFormat(GL_RGBA32F)));
mFboHiPass = gl::Fbo::create(1280, 720);
mFboBlurU = gl::Fbo::create(1280, 720);
mFboBlurV = gl::Fbo::create(1280, 720);
mShaderHiPass = gl::GlslProg::create(loadAsset("shaders/passthru_vert.glsl"), loadAsset("shaders/highpass_frag.glsl"));
mShaderHiPass->uniform("uTextureSampler", 0);
mShaderBlur = gl::GlslProg::create(loadAsset("shaders/blur_vert.glsl"), loadAsset("shaders/blur_frag.glsl"));
mShaderBlur->uniform("uTextureSampler", 0);
}
void Day41App::update()
{
lightPos.x = (1.5f * cos(theta)) - 0.5;
lightPos.y = 2+ 1.5f * sin(theta);
lightPos.z = 1.5f;// * sin(theta*2);
theta += 0.0523;
eyePos = mCam.getEyePoint();
mGlsl->uniform("light.position", vec3(mCam.getViewMatrix() * vec4(lightPos, 1.0f)));
mGlsl->uniform("viewPos", vec3(mCam.getViewMatrix() * vec4(eyePos, 1.0f)));
vec3 lightColor = vec3(1.f);
vec3 diffuseColor = lightColor * vec3(0.9f);
vec3 ambientColor = diffuseColor * vec3(0.5f);
mGlsl->uniform("light.diffuse", diffuseColor);
mGlsl->uniform("light.specular", vec3(1.f));
mGlsl->uniform("material.ambient", vec3(1.0f, 0.5f, 0.31f));
mGlsl->uniform("material.diffuse", 0); //pass the diffuse map texture to shader
mGlsl->uniform("material.specular", 1); //pass the specular map texture to the shader
mGlsl->uniform("material.shininess", 32.f);
}
void ProfilerTestApp::draw()
{
CI_SCOPED_CPU( mCpuProfiler, "Draw" );
CI_SCOPED_GPU( mGpuProfiler, "Draw" );
gl::clear();
// Expensive CPU operation
for( size_t i = 0; i < 20000; ++i ) {
Rand::randVec3();
}
// Expensive GPU pass
{
CI_SCOPED_GPU( mGpuProfiler, "Noise pass" );
gl::ScopedGlslProg s( mNoiseShader );
mNoiseShader->uniform( "uTime", (float)app::getElapsedSeconds() );
gl::drawSolidRect( app::getWindowBounds() );
}
// More gpu work...
gl::drawSolidCircle( app::getWindowSize()/2, 100.0f, 50000 );
CI_CHECK_GL();
}
void MotionBlurVelocityBufferApp::drawBlurredContent()
{
gl::ScopedTextureBind colorTex( mGBuffer->getTexture2d( G_COLOR ), 0 );
gl::ScopedTextureBind velTex( mGBuffer->getTexture2d( G_VELOCITY ), 1 );
gl::ScopedTextureBind neigborTex( mVelocityDilationBuffer->getTexture2d( DILATE_NEIGHBOR_MAX ), 2 );
gl::ScopedGlslProg prog( mMotionBlurProg );
gl::ScopedBlendPremult blend;
mMotionBlurProg->uniform( "uColorMap", 0 );
mMotionBlurProg->uniform( "uVelocityMap", 1 );
mMotionBlurProg->uniform( "uNeighborMaxMap", 2 );
mMotionBlurProg->uniform( "uNoiseFactor", mBlurNoise );
mMotionBlurProg->uniform( "uSamples", mSampleCount );
gl::drawSolidRect( getWindowBounds() );
}
void TransformFeedbackClothSimulationApp::update()
{
gl::ScopedGlslProg updateScope( mUpdateGlsl );
gl::ScopedState stateScope( GL_RASTERIZER_DISCARD, true );
// This for loop allows iteration on the gpu of solving the
// physics of the cloth.
// Change mIterationsPerFrame to see the difference it makes
for( int i = mIterationsPerFrame; i != 0; --i ) {
// Pick using the mouse if it's pressed
if( mouseMoving ) {
mUpdateGlsl->uniform( "mouse_pos", currentMousePosition );
mouseMoving = false;
}
gl::ScopedVao vaoScope( mVaos[mIterationIndex & 1] );
gl::ScopedTextureBind textureBind( mPosBufferTextures[mIterationIndex & 1]->getTarget(),
mPosBufferTextures[mIterationIndex & 1]->getId() );
mIterationIndex++;
mFeedbackObjs[mIterationIndex & 1]->bind();
gl::beginTransformFeedback( GL_POINTS );
gl::drawArrays( GL_POINTS, 0, POINTS_TOTAL );
gl::endTransformFeedback();
}
}
void GeometryApp::resize()
{
mCamera.setAspectRatio( getWindowAspectRatio() );
if( mWireframeShader )
mWireframeShader->uniform( "uViewportSize", vec2( getWindowSize() ) );
}
void ParticleSphereCSApp::update()
{
// Update particles on the GPU
gl::ScopedGlslProg prog( mUpdateProg );
mUpdateProg->uniform( "uMouseForce", mMouseForce );
mUpdateProg->uniform( "uMousePos", mMousePos );
gl::ScopedBuffer scopedParticleSsbo( mParticleBuffer );
gl::dispatchCompute( NUM_PARTICLES / WORK_GROUP_SIZE, 1, 1 );
gl::memoryBarrier( GL_SHADER_STORAGE_BARRIER_BIT );
// Update mouse force.
if( mMouseDown ) {
mMouseForce = 150.0f;
}
}
void ShaderToyApp::bindShader(gl::GlslProgRef shader)
{
// Nothing to bind if we don't have a shader.
if(!shader) return;
// Bind the shader.
shader->bind();
// Make sure it was successfull by checking for errors.
GLenum err = glGetError();
if(err != GL_NO_ERROR)
fatal("Failed to bind the shader!\n\nYour driver may not properly support shared contexts. Make sure you use the latest driver version and a proper GPU.");
// Calculate shader parameters.
Vec3f iResolution( Vec2f( getWindowSize() ), 1.f );
float iGlobalTime = (float) getElapsedSeconds();
float iChannelTime0 = (float) getElapsedSeconds();
float iChannelTime1 = (float) getElapsedSeconds();
float iChannelTime2 = (float) getElapsedSeconds();
float iChannelTime3 = (float) getElapsedSeconds();
Vec3f iChannelResolution0 = mChannel0 ? Vec3f( mChannel0->getSize(), 1.f ) : Vec3f::one();
Vec3f iChannelResolution1 = mChannel1 ? Vec3f( mChannel1->getSize(), 1.f ) : Vec3f::one();
Vec3f iChannelResolution2 = mChannel2 ? Vec3f( mChannel2->getSize(), 1.f ) : Vec3f::one();
Vec3f iChannelResolution3 = mChannel3 ? Vec3f( mChannel3->getSize(), 1.f ) : Vec3f::one();
time_t now = time(0);
tm* t = gmtime(&now);
Vec4f iDate( float(t->tm_year + 1900),
float(t->tm_mon + 1),
float(t->tm_mday),
float(t->tm_hour * 3600 + t->tm_min * 60 + t->tm_sec) );
// Set shader uniforms.
shader->uniform("iResolution", iResolution);
shader->uniform("iGlobalTime", iGlobalTime);
shader->uniform("iChannelTime[0]", iChannelTime0);
shader->uniform("iChannelTime[1]", iChannelTime1);
shader->uniform("iChannelTime[2]", iChannelTime2);
shader->uniform("iChannelTime[3]", iChannelTime3);
shader->uniform("iChannelResolution[0]", iChannelResolution0);
shader->uniform("iChannelResolution[1]", iChannelResolution1);
shader->uniform("iChannelResolution[2]", iChannelResolution2);
shader->uniform("iChannelResolution[3]", iChannelResolution3);
shader->uniform("iMouse", mMouse);
shader->uniform("iChannel0", 0);
shader->uniform("iChannel1", 1);
shader->uniform("iChannel2", 2);
shader->uniform("iChannel3", 3);
shader->uniform("iDate", iDate);
}
void HighDynamicRangeApp::draw()
{
gl::clear( Color( 0, 0, 0 ) );
gl::ScopedGlslProg shaderScp( mShader );
gl::ScopedTextureBind texBindScp( mHdrTexture );
mShader->uniform( "uExposure", mExposure );
gl::drawSolidRect( mHdrTexture->getBounds() );
}
void ShadowMappingBasic::draw()
{
renderDepthFbo();
gl::clear( Color::black() );
gl::setMatrices( mCam );
gl::ScopedTextureBind texScope( mShadowMapTex, (uint8_t) 0 );
vec3 mvLightPos = vec3( gl::getModelView() * vec4( mLightPos, 1.0f ) ) ;
mat4 shadowMatrix = mLightCam.getProjectionMatrix() * mLightCam.getViewMatrix();
mGlsl->uniform( "uShadowMap", 0 );
mGlsl->uniform( "uLightPos", mvLightPos );
mGlsl->uniform( "uShadowMatrix", shadowMatrix );
drawScene( false );
}
void SlingshotSmokeApp::setup()
{
mVolumeMult = 5.0;
mLastTime = 0;
getWindowIndex(0)->getSignalDraw().connect([=]() { drawRender(); });
mAudioSource = AudioSource();
mAudioSource.setup();
vec2 fluidResolution = vec2(512);
vec2 smokeResolution = app::getWindowSize();
mFluid = Fluid(fluidResolution);
mSmokers.reserve(2);
mSmokers.push_back(shared_ptr<FakeSmoker>(new FakeSmoker(fluidResolution, smokeResolution)));
mSmokers.push_back(shared_ptr<PositionSmoker>(new PositionSmoker(fluidResolution, smokeResolution)));
mSmokers.push_back(shared_ptr<TransitionSmoker>(new TransitionSmoker(fluidResolution, smokeResolution)));
mSmokers.push_back(shared_ptr<BottomSmoker>(new BottomSmoker(fluidResolution, smokeResolution)));
mCurrentSmoker = 0;
mSmokers[mCurrentSmoker]->light(vec2(0.5, 0.2), mParams);
gl::GlslProg::Format renderFormat;
renderFormat.vertex(app::loadAsset("passthru.vert"));
renderFormat.fragment(app::loadAsset("Smokers/smoke_draw.frag"));
mRenderProg = gl::GlslProg::create(renderFormat);
mRenderProg->uniform("i_resolution", smokeResolution);
gl::Texture2d::Format texFmt;
texFmt.setInternalFormat(GL_RGBA32F);
texFmt.setDataType(GL_FLOAT);
texFmt.setTarget(GL_TEXTURE_2D);
texFmt.setWrap(GL_CLAMP_TO_EDGE, GL_CLAMP_TO_EDGE);
gl::Fbo::Format fmt;
fmt.disableDepth()
.setColorTextureFormat(texFmt);
mSmokeField = PingPongFBO(fmt, smokeResolution, 4);
// Do params last so that all the FBOs are in the right context
vec2 paramsSize = vec2(255, 512);
auto format = Window::Format();
format.setSize(paramsSize + vec2(40, 20));
format.setPos(ivec2(100));
WindowRef paramsWindow = createWindow(format);
paramsWindow->getSignalDraw().connect([=]() { drawParams(); });
mParams = params::InterfaceGl::create(paramsWindow, "Options", paramsSize);
mParams->addParam("Volume", &mVolumeMult)
.max(10.0)
.min(0.0)
.step(0.1);
}
void NormalMappingBasicApp::draw()
{
gl::clear();
gl::setMatrices( mCam );
gl::ScopedModelMatrix modelScope;
gl::multModelMatrix( mCubeRotation );
mGlsl->uniform( "uLightLocViewSpace", vec3( mCam.getViewMatrix() * vec4( mLightPosWorldSpace, 1 )) );
mBatch->draw();
}
void Day44App::update()
{
lightPos.x = 8.f * cos(theta);
lightPos.y = 8.f * sin(theta);
lightPos.z = 2.f * sin(theta * 2);
theta += 0.0523;
eyePos = mCam.getEyePoint();
//VERY NB! CONVERT THE LIGHT'S POSITION TO VIEW SPACE BEFORE SENDING IT TO THE GPU, THIS IS BECAUSE ALL THE CALCULATIONS IN THE SHADERS ARE HAPPENING IN VIEW SPACE!
mGlsl->uniform("uLightPos", vec3( mCam.getViewMatrix() * vec4( lightPos, 1 )));
mGlsl->uniform("uConstant", 1.f);
mGlsl->uniform("uLinear", 0.09f);
mGlsl->uniform("uQuatratic", 0.01f);
cout << lightPos << endl;
}
void SyphonBasicApp::draw()
{
gl::enableAlphaBlending();
gl::clear(Color::white());
gl::color(ColorA(1.f, 1.f, 1.f, 1.f));
mShader->bind();
mShader->uniform( "tex0", 0 );
mShader->uniform( "sampleOffset", Vec2f( cos( mAngle ), sin( mAngle ) ) * ( 3.0f / getWindowWidth() ) );
gl::draw(mLogo, Vec2f::zero());
mShader->unbind();
mClientSyphon.draw(Vec2f(16.f, 64.f)); //draw our client image
mScreenSyphon.publishScreen(); //publish the screen's output
mTextureSyphon.publishTexture(mLogo); //publish our texture without shader
//anything that we draw after here will not be published
gl::drawStringCentered("This text will not be published to Syphon.", Vec2f(getWindowCenter().x, 20.f), ColorA::black());
}
void SpiderWebApp::setupGlsl()
{
// These are the names of our out going vertices. GlslProg needs to
// know which attributes should be captured by Transform FeedBack.
std::vector<std::string> feedbackVaryings({
"tf_position_mass",
"tf_velocity"
});
gl::GlslProg::Format updateFormat;
updateFormat.vertex( loadAsset( "update.vert" ) )
// Because we have separate buffers with which
// to capture attributes, we're using GL_SEPERATE_ATTRIBS
.feedbackFormat( GL_SEPARATE_ATTRIBS )
// We also send the names of the attributes to capture
.feedbackVaryings( feedbackVaryings );
mUpdateGlsl = gl::GlslProg::create( updateFormat );
// Set this, otherwise it will be set to vec3( 0, 0, 0 ),
// which is in the center of the cloth
mUpdateGlsl->uniform( "rayPosition", vec3( 0 ) );
mUpdateGlsl->uniform( "gravity", vec3(0, 0.08f, 0) );
// mUpdateGlsl->uniform( "rest_length", 20.0 );
mUpdateGlsl->uniform( "c", mOptions->getDamping() );
mUpdateGlsl->uniform( "k", mOptions->getSpringConstant() );
mUpdateGlsl->uniform( "tension", mOptions->getTension() );
mUpdateGlsl->uniform( "t", mOptions->getTimestep() );
gl::GlslProg::Format renderFormat;
renderFormat.vertex( loadAsset( "render.vert" ) )
.fragment( loadAsset( "render.frag" ) );
mRenderGlsl = gl::GlslProg::create( renderFormat );
}
void AudioObjApp::draw()
{
gl::clear( Color( 0, 0, 0 ) );
gl::enableAlphaBlending();
gl::enableDepthRead();
gl::enableDepthWrite();
gl::pushMatrices();
gl::setMatrices( mMayaCam.getCamera() );
if ( mFeature && mFeatureTex )
{
mShader->bind();
mFeatureTex.enableAndBind();
mShader->uniform( "dataTex", 0 );
mShader->uniform( "texWidth", (float)mFeatureTex.getWidth() );
mShader->uniform( "texHeight", (float)mFeatureTex.getHeight() );
mShader->uniform( "soundDataSize", (float)mFeature->getSize() );
mShader->uniform( "spread", mFeatureSpread );
mShader->uniform( "spreadOffset", mFeatureSpreadOffset );
mShader->uniform( "time", (float)getElapsedSeconds() );
mShader->uniform( "tintColor", mObjColor );
}
if ( mRenderWireframe )
gl::enableWireframe();
gl::color( Color(1.0f, 0.0f, 0.0f ) );
if ( mVbo )
gl::draw( mVbo );
if ( mRenderWireframe )
gl::disableWireframe();
mShader->unbind();
mFeatureTex.unbind();
gl::color( Color::white() );
// gl::drawCoordinateFrame();
gl::popMatrices();
gl::disableDepthRead();
gl::disableDepthWrite();
gl::setMatricesWindow( getWindowSize() );
ciXtractReceiver::drawData( mFeature, Rectf( 15, getWindowHeight() - 150, 255, getWindowHeight() - 35 ) );
gl::draw( mFeatureSurf );
mParams->draw();
}
void ITA_ForcesApp::update()
{
if (!mMouseInput)
{
if (mIsRunning)
updateRS();
}
else
mNumInputs = 1.0f;
if (mIdle)
mForceMode *= mParamDamping;
mId = 1 - mId;
gl::ScopedGlslProg tfShader(mShaderTF);
//mShaderTF->uniform("u_ForcePos", vec3(mMousePos.x, mMousePos.y, 0.0f));
mShaderTF->uniform("u_ForcePos", mMousePos.data(), 2);
mShaderTF->uniform("u_Count", mNumInputs);
mShaderTF->uniform("u_ForceScale", mForceMode);
mShaderTF->uniform("u_Radius", P_RADIUS);
mShaderTF->uniform("u_MagScale", P_MAG);
mShaderTF->uniform("u_Damping", P_DAMP);
mShaderTF->uniform("u_Bounds", vec2(getWindowSize()));
gl::ScopedVao tfVao(mVao[mId]);
gl::ScopedState tfState(GL_RASTERIZER_DISCARD, true);
mTfo[1 - mId]->bind();
gl::beginTransformFeedback(GL_POINTS);
gl::drawArrays(GL_POINTS, 0, NUM_PTS.x*NUM_PTS.y);
gl::endTransformFeedback();
}
void TessellationShaderApp::draw()
{
gl::clear();
#if ! defined( CINDER_GL_ES )
gl::enableWireframe();
#endif
gl::setMatricesWindow( getWindowSize() );
gl::translate( getWindowCenter() );
gl::ScopedGlslProg glslProg( mGlsl );
mGlsl->uniform( "uTessLevelInner", (float)mTessLevelInner );
mGlsl->uniform( "uTessLevelOuter", (float)mTessLevelOuter );
mGlsl->uniform( "uRadius", mRadius );
mBatch->draw();
#if ! defined( CINDER_GL_ES )
gl::disableWireframe();
mParams->draw();
#endif
}
void PointCloudVAO::drawCloud()
{
gl::enableDepthRead();
gl::setMatrices(mSceneView);
mShader->uniform("u_PointSize", mParamPointSize);
gl::ScopedVao vao(mVao);
gl::ScopedGlslProg glsl(mShader);
gl::context()->setDefaultShaderVars();
gl::drawArrays(GL_POINTS, 0, mPoints.size());
gl::disableDepthRead();
}
void FragmentShaderToyApp::setup()
{
// load fragment shader from the provided path
// we always use the same vertex shader, so it isn't specified
loadShader(getAssetPath("default.fs"));
string pathToStartupFile = (getAssetPath("") / "startup.jpg").string();
if (fs::exists(pathToStartupFile))
{
texture = gl::Texture::create(loadImage(loadAsset("startup.jpg")));
}
// create a rectangle to be drawn with our shader program
// default is from -0.5 to 0.5, so we scale by 2 to get -1.0 to 1.0
mMesh = gl::VboMesh::create(geom::Rect());// .scale(vec2(2.0f, 2.0f)));
// load a new shader on file drop
getWindow()->getSignalFileDrop().connect([this](FileDropEvent &event)
{
auto file = event.getFile(0);
if (fs::is_regular_file(file));
{ loadShader(file); }
});
// set iMouse XY on mouse move
getWindow()->getSignalMouseMove().connect([this](MouseEvent &event)
{
mMouseCoord.x = event.getX();
mMouseCoord.y = getWindowHeight() - event.getY();
});
// set iMouse ZW on mouse down
getWindow()->getSignalMouseDown().connect([this](MouseEvent &event)
{
mMouseCoord.z = event.getX();
mMouseCoord.w = getWindowHeight() - event.getY();
});
// reload last fragment shader on keypress, or save frame if key == 's'
getWindow()->getSignalKeyDown().connect([this](KeyEvent &event)
{
if (event.getCode() == KeyEvent::KEY_s)
{
mDoSave = true;
}
else
{
loadShader(mCurrentShaderPath);
}
});
// set shader resolution uniform on resize (if shader has that uniform)
getWindow()->getSignalResize().connect([this]()
{
mProg->uniform("iResolution", vec3(getWindowWidth(), getWindowHeight(), 0.0f));
});
}