void SMAA::draw( gl::Texture2dRef source, const Area& bounds )
{
if( !mSMAAFirstPass || !mSMAASecondPass || !mSMAAThirdPass )
return;
// Create or resize buffers.
const int width = source->getWidth();
const int height = source->getHeight();
createBuffers( width, height );
// Apply first two passes.
doEdgePass( source );
doBlendPass();
// Apply SMAA.
gl::ScopedTextureBind tex0( source );
gl::ScopedTextureBind tex1( mFboBlendPass->getColorTexture(), 1 );
gl::ScopedGlslProg shader( mSMAAThirdPass->program() );
mSMAAThirdPass->uniform( "SMAA_RT_METRICS", mMetrics );
mSMAAThirdPass->uniform( "uColorTex", 0 );
mSMAAThirdPass->uniform( "uBlendTex", 1 );
gl::color( Color::white() );
gl::drawSolidRect( bounds );
// gl::draw( mAreaTex );
}
void ImageViewer::update()
{
mCinderDS->update();
mTexRgb->update(*mCinderDS->getRgbFrame());
auto depthChannel = mCinderDS->getDepthFrame();
auto depthSurface = Surface8u::create(mDepthDims.x, mDepthDims.y, SurfaceChannelOrder::RGB);
auto iter = depthSurface->getIter();
while (iter.line())
{
while (iter.pixel())
{
iter.r() = 0;
iter.g() = 0;
iter.b() = 0;
// Not optimal mapping, TODO: color from histogram
float depthValue = (float)*depthChannel->getData(iter.x(), iter.y());
if (depthValue > 100 && depthValue < 1000)
{
int colorValue = (int)lmap<float>(depthValue, 100, 1000, 255, 0);
iter.r() = colorValue;
iter.g() = colorValue;
}
}
}
mTexDepth->update(*depthSurface);
}
void Day41App::setup()
{
mCam.lookAt(vec3(0,0,5), vec3(0., 1.5, 0.));
mCam.setPerspective(45.f, getWindowAspectRatio(), 1.f, 1000.f);
auto img = loadImage(loadAsset("box.png"));
auto img1 = loadImage(loadAsset("box_spec.png"));
mDiffuseMap = gl::Texture2d::create(img);
mSpecularMap = gl::Texture2d::create(img1);
mDiffuseMap->bind(0);
mSpecularMap->bind(1);
lightPos = vec3(0.f);
theta = 0.0;
setupGlsl();
mCamUi = CameraUi(&mCam, getWindow());
auto cube = geom::Cube();
mBatch = gl::Batch::create(cube, mGlsl);
auto sphere = geom::Sphere();
auto scale = geom::Scale(0.1f,0.1f,0.1f);
auto shader = gl::ShaderDef().color();
auto rotate = geom::Rotate(angleAxis(2.1f, vec3(1.0,0.,0.f)));
mLight = gl::Batch::create(sphere >> scale >> rotate, gl::getStockShader(shader));
gl::enableDepthRead();
gl::enableDepthWrite();
}
void PointCloudApp::update()
{
mCinderRS->update();
mPoints.clear();
Channel16u cChanDepth = mCinderRS->getDepthFrame();
mTexRgb->update(mCinderRS->getRgbFrame());
for (int dy = 0; dy < mDepthDims.y; ++dy)
{
for (int dx = 0; dx < mDepthDims.x; ++dx)
{
float cDepth = (float)*cChanDepth.getData(dx, dy);
if (cDepth > 100 && cDepth < 1000)
{
vec3 cPos = mCinderRS->getDepthSpacePoint(vec3(dx, dy, cDepth));
vec2 cUV = mCinderRS->getColorCoordsFromDepthImage(static_cast<float>(dx),
static_cast<float>(dy),
cDepth);
mPoints.push_back(CloudPoint(cPos, cUV));
}
}
}
mBufferObj->bufferData(mPoints.size()*sizeof(CloudPoint), mPoints.data(), GL_DYNAMIC_DRAW);
mMeshObj = gl::VboMesh::create(mPoints.size(), GL_POINTS, { { mAttribObj, mBufferObj } });
mDrawObj->replaceVboMesh(mMeshObj);
}
void WarpPerspective::draw( const gl::Texture2dRef &texture, const Area &srcArea, const Rectf &destRect )
{
// clip against bounds
Area area = srcArea;
Rectf rect = destRect;
clip( area, rect );
// save current drawing color
const ColorA & currentColor = gl::context()->getCurrentColor();
gl::ScopedColor color( currentColor );
// adjust brightness
if( mBrightness < 1.f ) {
ColorA drawColor = mBrightness * currentColor;
drawColor.a = currentColor.a;
gl::color( drawColor );
}
// create shader if necessary
createShader();
// draw texture
gl::pushModelMatrix();
gl::multModelMatrix( getTransform() );
gl::ScopedTextureBind tex0( texture );
gl::ScopedGlslProg shader( mShader );
mShader->uniform( "uLuminance", mLuminance );
mShader->uniform( "uGamma", mGamma );
mShader->uniform( "uEdges", mEdges );
mShader->uniform( "uExponent", mExponent );
//auto coords = texture->getAreaTexCoords( srcArea );
float w = static_cast<float>(texture->getActualWidth());
float h = static_cast<float>(texture->getActualHeight());
Rectf coords(area.x1 / w, area.y1 / h, area.x2 / w, area.y2 / h);
gl::drawSolidRect( rect, coords.getUpperLeft(), coords.getLowerRight() );
gl::popModelMatrix();
// draw interface
draw();
}
void PTApp::update()
{
if (frameDone)
{
imgTex->update(frameBuffer, GL_RGB, GL_UNSIGNED_BYTE, 0, frameBufferWidth, frameBufferHeight);
frameDone = false;
renderFrame = true;
console() << "Render time: " << renderTime << "s\n";
}
}
void Day62App::loadImage()
{
auto pic = cinder::loadImage(loadAsset("window.png"));
gl::Texture2d::Format fmt;
//SET THE INTERNAL FORMAT TO RGBA SO THAT WE CAN TEST THE ALPHA VALUE IN THE FRAG SHADER
fmt.internalFormat(GL_RGBA);
fmt.wrap(GL_CLAMP_TO_EDGE);
// fmt.wrapS(GL_REPEAT);
// fmt.wrapT(GL_REPEAT);
// fmt.setMinFilter(GL_LINEAR_MIPMAP_LINEAR);
// fmt.setMagFilter(GL_LINEAR);
mTex = gl::Texture2d::create(pic, fmt);
mTex->bind();
}
void VoronoiGpuApp::draw()
{
gl::clear();
gl::setMatricesWindow( getWindowSize() );
gl::color( Color( 1, 1, 1 ) );
if( mTexture ) {
gl::draw( mTexture, toPoints( mTexture->getBounds() ) );
}
// draw the voronoi sites in yellow
gl::color( Color( 1.0f, 1.0f, 0.0f ) );
for( vector<ivec2>::const_iterator ptIt = mPoints.begin(); ptIt != mPoints.end(); ++ptIt )
gl::drawSolidCircle( toPoints( vec2( *ptIt ) ), 2.0f );
gl::enableAlphaBlending();
gl::drawStringRight( "Click to add a point", vec2( getWindowWidth() - toPixels( 10 ), getWindowHeight() - toPixels( 20 ) ), Color( 1, 0.3, 0 ), Font( "Arial", toPixels( 12 ) ) );
gl::disableAlphaBlending();
}
void PTApp::setup()
{
_main();
ptScene.renderables.push_back(pt::CreateSphereRenderable(
glm::vec3(1e5 + 1, 40.8, 81.6), 1e5,
glm::vec3(.999,0,0), pt::Material::DIFFUSE)); // Left
ptScene.renderables.push_back(pt::CreateSphereRenderable(
glm::vec3(-1e5 + 99, 40.8, 81.6), 1e5,
glm::vec3(0,.999,0), pt::Material::DIFFUSE)); // Right
ptScene.renderables.push_back(pt::CreateSphereRenderable(
glm::vec3(50, 40.8, 1e5), 1e5,
glm::vec3(.75, .75, .75), pt::Material::DIFFUSE)); // Back
ptScene.renderables.push_back(pt::CreateSphereRenderable(
glm::vec3(50, 40.8, -1e5 + 170), 1e5,
glm::vec3(0,0,0), pt::Material::DIFFUSE)); // Front
ptScene.renderables.push_back(pt::CreateSphereRenderable(
glm::vec3(50, 1e5, 81.6), 1e5,
glm::vec3(.75, .75, .75), pt::Material::DIFFUSE)); // Bottom
ptScene.renderables.push_back(pt::CreateSphereRenderable(
glm::vec3(50, -1e5 + 81.6, 81.6), 1e5,
glm::vec3(.75, .75, .75), pt::Material::DIFFUSE)); // Top
ptScene.renderables.push_back(pt::CreateSphereRenderable(
glm::vec3(27, 16.5, 47), 16.5,
glm::vec3(.999), pt::Material::DIFFUSE)); // Object
ptScene.renderables.push_back(pt::CreateSphereRenderable(
glm::vec3(73, 16.5, 78), 16.5,
glm::vec3(.999), pt::Material::DIFFUSE)); // Object
ptScene.renderables.push_back(pt::CreateSphereRenderable(
glm::vec3(50,81.6-16.5,81.6), 1.5,
glm::vec3(0), pt::Material::DIFFUSE, glm::vec3(400, 400, 400))); // Light
frameBufferWidth = getWindowWidth();
frameBufferHeight = getWindowHeight();
frameBufferDepth = 3;
frameBufferSize = frameBufferWidth * frameBufferHeight * frameBufferDepth;
frameBuffer = (char*)malloc(frameBufferSize * sizeof(char));
frameDone = false;
renderFrame = false;
frameThread = std::shared_ptr<std::thread>(new std::thread([this](){
std::shared_ptr<pt::PathTracer> _pt = std::shared_ptr<pt::PathTracer>(new pt::PathTracer());
_pt->Trace(ptScene,
frameBufferWidth,
frameBufferHeight,
8,
glm::dvec3(50, 52, 295.6),
glm::dvec3(0, -0.042612, -1),
.5135,
frameBuffer, &renderTime);
frameDone = true;
}));
imgTex = gl::Texture2d::create((void*)0, GL_RGB, frameBufferWidth, frameBufferHeight);
imgTex->setTopDown(true);
}
vec4 GpuParrallelReductionApp::findMindMax()
{
// init the programs, fbo and texture used for the parrallel reduction
static gl::FboRef sReductionFbo, sReadFbo;
static gl::Texture2dRef sReductionTexture0;
static gl::GlslProgRef sReductionProg, sCopyProg;
auto startingSize = mFbo->getSize() / 2;
if( !sReductionFbo || sReductionFbo->getSize() != startingSize ) {
sReductionTexture0 = gl::Texture2d::create( startingSize.x, startingSize.y, gl::Texture2d::Format().minFilter( GL_NEAREST_MIPMAP_NEAREST ).magFilter( GL_NEAREST ).mipmap().immutableStorage() );
sReductionFbo = gl::Fbo::create( startingSize.x, startingSize.y, gl::Fbo::Format()
.attachment( GL_COLOR_ATTACHMENT0, sReductionTexture0 )
.disableDepth() );
sReductionProg = gl::GlslProg::create( loadAsset( "minMax.vert" ), loadAsset( "minMax.frag" ) );
}
// start reduction profiling
static auto sTimer0 = gl::QueryTimeSwapped::create();
sTimer0->begin();
// attach the main level of the texture
gl::ScopedFramebuffer scopedFbo( sReductionFbo );
glFramebufferTexture2D( GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, sReductionTexture0->getId(), 0 );
// start by blitting the main fbo into the reduction one
mFbo->blitTo( sReductionFbo, mFbo->getBounds(), sReductionFbo->getBounds(), GL_NEAREST );
// bind the reduction program and texture and disable blending
gl::ScopedMatrices scopedMatrices;
gl::ScopedGlslProg scopedGlsl( sReductionProg );
gl::ScopedBlend scopedBlend( false );
gl::ScopedTextureBind scopedTexBind0( sReductionTexture0, 0 );
sReductionProg->uniform( "uTex0", 0 );
// iterate trough each mipmap level
int numMipMaps = gl::Texture2d::requiredMipLevels( startingSize.x, startingSize.y, 0 );
for( int level = 1; level < numMipMaps; ++level ) {
// attach the current mipmap level to the framebuffer and limit texture sampling to the previous level
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, level - 1 );
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, level - 1 );
glFramebufferTexture2D( GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, sReductionTexture0->getId(), level );
// get the current mipmap size and update uniforms
vec2 size = gl::Texture2d::calcMipLevelSize( level, sReductionFbo->getWidth(), sReductionFbo->getHeight() );
sReductionProg->uniform( "uInvSize", vec2( 1.0f ) / vec2( size ) );
// render a fullscreen quad
gl::ScopedViewport scopedViewport( ivec2( 0 ), size );
gl::setMatricesWindow( size.x, size.y );
gl::drawSolidRect( Rectf( vec2( 0.0f ), vec2( size ) ) );
}
// stop reduction profiling
sTimer0->end();
mReductionTime = sTimer0->getElapsedMilliseconds();
// start readback profiling
static auto sTimer1 = gl::QueryTimeSwapped::create();
sTimer1->begin();
// read back to the cpu and find the max value
vec4 max( 0.0f );
ivec2 readSize = gl::Texture2d::calcMipLevelSize( numMipMaps - 1, startingSize.x, startingSize.y );
Surface8u surface( readSize.x, readSize.y, true );
glGetTexImage( sReductionTexture0->getTarget(), numMipMaps - 1, GL_RGBA, GL_UNSIGNED_BYTE, surface.getData() );
auto it = surface.getIter();
while( it.line() ) { while( it.pixel() ) {
max = glm::max( max, vec4( it.r(), it.g(), it.b(), it.a() ) );
} }
// stop readback profiling
sTimer1->end();
mReadBackTime = sTimer1->getElapsedMilliseconds();
return max;
}
void PTWeekend::cleanup()
{
GLuint textureName = imgTex->getId();
glDeleteTextures(1, &textureName);
}
void Warp::draw( const gl::Texture2dRef &texture )
{
draw( texture, texture->getBounds(), Rectf( getBounds() ) );
}
void Day8App::setup()
{
mCam.lookAt(vec3(3,2,3), vec3(0));
auto img = loadImage(loadAsset("texture.jpg"));
setFrameRate(60);
mTex = gl::Texture2d::create(img);
mTex->bind(0);
/* THIS SHADER PROGRAM IS FOR MULTIPLYING THE TEXTURE BY THE COLOUR
mGlsl = gl::GlslProg::create( gl::GlslProg::Format().
vertex( CI_GLSL(150,
uniform mat4 ciModelViewProjection;
in vec4 ciPosition;
in vec2 ciTexCoord0; //THIS COMES FROM CINDER AUTOMATICALLY FROM geom::Attrib::TEX_COORD_0
out vec2 TexCoord0; //SEND IT TO THE FRAG SHADER
void main(void)
{
gl_Position = ciModelViewProjection * ciPosition;
TexCoord0 = ciTexCoord0;
})).
fragment( CI_GLSL(150,
uniform vec4 uColor;
uniform sampler2D uTex0;
in vec2 TexCoord0;
out vec4 oColor;
void main(void)
{
oColor = texture(uTex0, TexCoord0) * uColor;
})
));
*/
mGlsl = gl::GlslProg::create( gl::GlslProg::Format().
vertex( CI_GLSL(150,
uniform mat4 ciModelViewProjection;
uniform vec2 uRes;
in vec4 ciPosition;
in vec2 ciTexCoord0;
out vec2 TexCoord0;
uniform float uAngle; //VARIABLE FROM THE CPU FOR MODULATING THE SINE WAVE
/*
float offset(vec2 uv)
{
//return (sin(uv.x * 15.0) +
// cos(uv.y * 7.0f +uv.x * 13.0f )) * 0.1f;
vec4 pos = ciPosition;
float z = sin(uAng
return cos(sqrt( uv.x * uv.x + uv.y * uv.y));
}
*/
void main(void)
{
vec4 pos = ciPosition;
pos.y = sin(uAngle * sqrt(pow(pos.x,2) + pow(pos.z,2))) / 5.;
gl_Position = ciModelViewProjection * pos;
TexCoord0 = ciTexCoord0;
}