void kinectPointCloudApp::createVbo()
{
gl::VboMesh::Layout layout;
layout.setStaticPositions();
layout.setStaticTexCoords2d();
layout.setStaticIndices();
std::vector<Vec3f> positions;
std::vector<Vec2f> texCoords;
std::vector<uint32_t> indices;
int numVertices = VBO_X_RES * VBO_Y_RES;
int numShapes = ( VBO_X_RES - 1 ) * ( VBO_Y_RES - 1 );
mVboMesh = gl::VboMesh( numVertices, numShapes, layout, GL_POINTS );
for( int x=0; x<VBO_X_RES; ++x ){
for( int y=0; y<VBO_Y_RES; ++y ){
indices.push_back( x * VBO_Y_RES + y );
float xPer = x / (float)(VBO_X_RES-1);
float yPer = y / (float)(VBO_Y_RES-1);
positions.push_back( Vec3f( ( xPer * 2.0f - 1.0f ) * VBO_X_RES, ( yPer * 2.0f - 1.0f ) * VBO_Y_RES, 0.0f ) );
texCoords.push_back( Vec2f( xPer, yPer ) );
}
}
mVboMesh.bufferPositions( positions );
mVboMesh.bufferIndices( indices );
mVboMesh.bufferTexCoords2d( 0, texCoords );
}
void Controller::createSphere( gl::VboMesh &vbo, int res )
{
float X = 0.525731112119f;
float Z = 0.850650808352f;
static Vec3f verts[12] = {
Vec3f( -X, 0.0f, Z ), Vec3f( X, 0.0f, Z ), Vec3f( -X, 0.0f, -Z ), Vec3f( X, 0.0f, -Z ),
Vec3f( 0.0f, Z, X ), Vec3f( 0.0f, Z, -X ), Vec3f( 0.0f, -Z, X ), Vec3f( 0.0f, -Z, -X ),
Vec3f( Z, X, 0.0f ), Vec3f( -Z, X, 0.0f ), Vec3f( Z, -X, 0.0f ), Vec3f( -Z, -X, 0.0f ) };
static GLuint triIndices[20][3] = {
{0,4,1}, {0,9,4}, {9,5,4}, {4,5,8}, {4,8,1}, {8,10,1}, {8,3,10}, {5,3,8}, {5,2,3}, {2,7,3},
{7,10,3}, {7,6,10}, {7,11,6}, {11,0,6}, {0,1,6}, {6,1,10}, {9,0,11}, {9,11,2}, {9,2,5}, {7,2,11} };
gl::VboMesh::Layout layout;
layout.setStaticPositions();
layout.setStaticNormals();
mPosCoords.clear();
mNormals.clear();
for( int i=0; i<20; i++ ){
drawSphereTri( verts[triIndices[i][0]], verts[triIndices[i][1]], verts[triIndices[i][2]], res );
}
vbo = gl::VboMesh( mPosCoords.size(), 0, layout, GL_TRIANGLES );
vbo.bufferPositions( mPosCoords );
vbo.bufferNormals( mNormals );
}
void BouncingBallsApp::setup()
{
// randomize the random generator
Rand::randSeed( clock() );
//
mUseMotionBlur = true;
// set some kind of sensible maximum to the frame rate
setFrameRate(100.0f);
// initialize simulator
mStepsPerSecond = 60;
mStepsPerformed = 0;
// create a single ball
mBalls.push_back( BallRef( new Ball() ) );
// create ball mesh ( much faster than using gl::drawSolidCircle() )
size_t slices = 20;
std::vector<Vec3f> positions;
std::vector<Vec2f> texcoords;
std::vector<uint32_t> indices;
indices.push_back( positions.size() );
texcoords.push_back( Vec2f(0.5f, 0.5f) );
positions.push_back( Vec3f::zero() );
for(size_t i=0;i<=slices;++i) {
float angle = i / (float) slices * 2.0f * (float) M_PI;
Vec2f v(sinf(angle), cosf(angle));
indices.push_back( positions.size() );
texcoords.push_back( Vec2f(0.5f, 0.5f) + 0.5f * v );
positions.push_back( Ball::RADIUS * Vec3f(v, 0.0f) );
}
gl::VboMesh::Layout layout;
layout.setStaticPositions();
layout.setStaticTexCoords2d();
layout.setStaticIndices();
mMesh = gl::VboMesh( (size_t) (slices + 2), (size_t) (slices + 2), layout, GL_TRIANGLE_FAN );
mMesh.bufferPositions( &positions.front(), positions.size() );
mMesh.bufferTexCoords2d(0, texcoords);
mMesh.bufferIndices( indices );
// load texture
mTexture = gl::Texture( loadImage( loadAsset("ball.png") ) );
// start simulation
mTimer.start();
}
void VboSampleApp::update()
{
// mCamera.lookAt(Vec3f(0, 0, 5.0f), Vec3f(0, 0, 0));
gl::setMatrices( mCamera );
vector<Vec3f> positions;
positions.push_back(Vec3f(-1.0f+0.2f*sin(getElapsedSeconds()), 1.0f, 0));
positions.push_back(Vec3f(-1.0f, -1.0f, 0));
positions.push_back(Vec3f(1.0f, -1.0f, 0));
positions.push_back(Vec3f(1.0f, 1.0f, 0));
mVboMesh.bufferPositions(positions);
}
void GeometryShaderApp::update()
{
// brute-force method: recreate mesh if anything changed
if( !mVboMesh ) {
if( mPoints.size() > 1 ) {
// create a new vector that can contain 3D vertices
std::vector<Vec3f> vertices;
// to improve performance, make room for the vertices + 2 adjacency vertices
vertices.reserve( mPoints.size() + 2);
// first, add an adjacency vertex at the beginning
vertices.push_back( 2.0f * Vec3f(mPoints[0]) - Vec3f(mPoints[1]) );
// next, add all 2D points as 3D vertices
std::vector<Vec2f>::iterator itr;
for(itr=mPoints.begin();itr!=mPoints.end();++itr)
vertices.push_back( Vec3f( *itr ) );
// next, add an adjacency vertex at the end
size_t n = mPoints.size();
vertices.push_back( 2.0f * Vec3f(mPoints[n-1]) - Vec3f(mPoints[n-2]) );
// now that we have a list of vertices, create the index buffer
n = vertices.size() - 2;
std::vector<uint32_t> indices;
indices.reserve( n * 4 );
for(size_t i=1;i<vertices.size()-2;++i) {
indices.push_back(i-1);
indices.push_back(i);
indices.push_back(i+1);
indices.push_back(i+2);
}
// finally, create the mesh
gl::VboMesh::Layout layout;
layout.setStaticPositions();
layout.setStaticIndices();
mVboMesh = gl::VboMesh( vertices.size(), indices.size(), layout, GL_LINES_ADJACENCY_EXT );
mVboMesh.bufferPositions( &(vertices.front()), vertices.size() );
mVboMesh.bufferIndices( indices );
}
else
mVboMesh = gl::VboMesh();
}
}
void RepulsionApp::createSphere( gl::VboMesh &vbo, int res )
{
float X = 0.525731112119f;
float Z = 0.850650808352f;
static Vec3f verts[12] = {
Vec3f( -X, 0.0f, Z ), Vec3f( X, 0.0f, Z ), Vec3f( -X, 0.0f, -Z ), Vec3f( X, 0.0f, -Z ),
Vec3f( 0.0f, Z, X ), Vec3f( 0.0f, Z, -X ), Vec3f( 0.0f, -Z, X ), Vec3f( 0.0f, -Z, -X ),
Vec3f( Z, X, 0.0f ), Vec3f( -Z, X, 0.0f ), Vec3f( Z, -X, 0.0f ), Vec3f( -Z, -X, 0.0f ) };
static GLuint triIndices[20][3] = {
{0,4,1}, {0,9,4}, {9,5,4}, {4,5,8}, {4,8,1}, {8,10,1}, {8,3,10}, {5,3,8}, {5,2,3}, {2,7,3},
{7,10,3}, {7,6,10}, {7,11,6}, {11,0,6}, {0,1,6}, {6,1,10}, {9,0,11}, {9,11,2}, {9,2,5}, {7,2,11} };
gl::VboMesh::Layout layout;
layout.setStaticPositions();
layout.setStaticNormals();
layout.setStaticColorsRGB();
mPosCoords.clear();
mNormals.clear();
mColors.clear();
float invWidth = 1.0f/(float)FBO_WIDTH;
float invHeight = 1.0f/(float)FBO_HEIGHT;
for( int x = 0; x < FBO_WIDTH; ++x ) {
for( int y = 0; y < FBO_HEIGHT; ++y ) {
float u = ( (float)x + 0.5f ) * invWidth;
float v = ( (float)y + 0.5f ) * invHeight;
Colorf c = Colorf( u, v, 0.0f );
for( int i=0; i<20; i++ ){
drawSphereTri( verts[triIndices[i][0]], verts[triIndices[i][1]], verts[triIndices[i][2]], res, c );
}
}
}
vbo = gl::VboMesh( mPosCoords.size(), 0, layout, GL_TRIANGLES );
vbo.bufferPositions( mPosCoords );
vbo.bufferNormals( mNormals );
vbo.bufferColorsRGB( mColors );
vbo.unbindBuffers();
}
void CatalogApp::initFaintVbo()
{
gl::VboMesh::Layout layout;
layout.setStaticPositions();
layout.setStaticColorsRGB();
int numFaintStars = mFaintStars.size();
mFaintVbo = gl::VboMesh( numFaintStars, 0, layout, GL_POINTS );
vector<Vec3f> positions;
vector<Color> colors;
for( int i=0; i<numFaintStars; i++ ){
positions.push_back( mFaintStars[i]->mPos );
colors.push_back( Color( mFaintStars[i]->mColor, 0.0f, 0.0f ) );
}
mFaintVbo.bufferPositions( positions );
mFaintVbo.bufferColorsRGB( colors );
mFaintVbo.unbindBuffers();
}
void VboSampleApp::setup()
{
mCamera.setAspectRatio(getWindowAspectRatio());
mTexture = bluegin::getTextureAsset("cinder_logo.png");
mTexture.setMinFilter(GL_LINEAR);
mTexture.setMagFilter(GL_LINEAR);
gl::VboMesh::Layout layout;
layout.setStaticIndices();
layout.setStaticPositions();
layout.setStaticTexCoords2d();
const int vertexCount = 4;
const int indexCount = 6;
mVboMesh = gl::VboMesh( vertexCount, indexCount, layout, GL_TRIANGLES );
vector<Vec3f> positions;
positions.push_back(Vec3f(-1.0f, 1.0f, 0));
positions.push_back(Vec3f(-1.0f, -1.0f, 0));
positions.push_back(Vec3f(1.0f, -1.0f, 0));
positions.push_back(Vec3f(1.0f, 1.0f, 0));
mVboMesh.bufferPositions(positions);
vector<Vec2f> texcoords;
texcoords.push_back(Vec2f(0, 0));
texcoords.push_back(Vec2f(0, 1.0f));
texcoords.push_back(Vec2f(1.0f, 1.0f));
texcoords.push_back(Vec2f(1.0f, 0));
mVboMesh.bufferTexCoords2d(0, texcoords);
vector<index_t> indices;
indices.push_back(index_t(0));
indices.push_back(index_t(1));
indices.push_back(index_t(2));
indices.push_back(index_t(2));
indices.push_back(index_t(3));
indices.push_back(index_t(0));
mVboMesh.bufferIndices(indices);
}
void FolApp::createVbo()
{
gl::VboMesh::Layout layout;
layout.setStaticPositions();
layout.setStaticTexCoords2d();
layout.setStaticIndices();
std::vector<Vec3f> positions;
std::vector<Vec2f> texCoords;
std::vector<uint32_t> indices;
int numVertices = VBO_X_SIZE * VBO_Y_SIZE;
int numShapes = ( VBO_X_SIZE - 1 ) * ( VBO_Y_SIZE - 1 );
mVboMesh = gl::VboMesh( numVertices, numShapes, layout, GL_POINTS );
for ( int x = 0; x < VBO_X_SIZE; x++ )
{
for ( int y = 0; y < VBO_Y_SIZE; y++ )
{
indices.push_back( x * VBO_Y_SIZE + y );
float xPer = x / (float)( VBO_X_SIZE - 1 );
float yPer = y / (float)( VBO_Y_SIZE - 1 );
/*
positions.push_back( Vec3f( ( xPer * 2.0f - 1.0f ) * VBO_X_SIZE,
( yPer * 2.0f - 1.0f ) * VBO_Y_SIZE,
0.0f ) );
*/
positions.push_back( Vec3f( x, y, 0 ) );
texCoords.push_back( Vec2f( xPer, yPer ) );
}
}
mVboMesh.bufferPositions( positions );
mVboMesh.bufferIndices( indices );
mVboMesh.bufferTexCoords2d( 0, texCoords );
//mVboMesh.unbindBuffers();
}
void AudioVisualizerApp::setup()
{
// initialize signals
signalChannelEnd = false;
// make a list of valid audio file extensions and initialize audio variables
const char* extensions[] = {"mp3", "wav", "ogg"};
mAudioExtensions = vector<string>(extensions, extensions+2);
mAudioPath = getAssetPath("");
mIsAudioPlaying = false;
// setup camera
mCamera.setPerspective(50.0f, 1.0f, 1.0f, 10000.0f);
mCamera.setEyePoint( Vec3f(-kWidth/4, kHeight/2, -kWidth/8) );
mCamera.setCenterOfInterestPoint( Vec3f(kWidth/4, -kHeight/8, kWidth/4) );
// create channels from which we can construct our textures
mChannelLeft = Channel32f(kBands, kHistory);
mChannelRight = Channel32f(kBands, kHistory);
memset( mChannelLeft.getData(), 0, mChannelLeft.getRowBytes() * kHistory );
memset( mChannelRight.getData(), 0, mChannelRight.getRowBytes() * kHistory );
// create texture format (wrap the y-axis, clamp the x-axis)
mTextureFormat.setWrapS( GL_CLAMP );
mTextureFormat.setWrapT( GL_REPEAT );
mTextureFormat.setMinFilter( GL_LINEAR );
mTextureFormat.setMagFilter( GL_LINEAR );
// compile shader
try {
mShader = gl::GlslProg( loadAsset("shaders/spectrum.vert"), loadAsset("shaders/spectrum.frag") );
}
catch( const std::exception& e ) {
console() << e.what() << std::endl;
quit();
return;
}
// create static mesh (all animation is done in the vertex shader)
std::vector<Vec3f> vertices;
std::vector<Colorf> colors;
std::vector<Vec2f> coords;
std::vector<size_t> indices;
for(size_t h=0;h<kHeight;++h)
{
for(size_t w=0;w<kWidth;++w)
{
// add polygon indices
if(h < kHeight-1 && w < kWidth-1)
{
size_t offset = vertices.size();
indices.push_back(offset);
indices.push_back(offset+kWidth);
indices.push_back(offset+kWidth+1);
indices.push_back(offset);
indices.push_back(offset+kWidth+1);
indices.push_back(offset+1);
}
// add vertex
vertices.push_back( Vec3f(float(w), 0, float(h)) );
// add texture coordinates
// note: we only want to draw the lower part of the frequency bands,
// so we scale the coordinates a bit
const float part = 0.5f;
float s = w / float(kWidth-1);
float t = h / float(kHeight-1);
coords.push_back( Vec2f(part - part * s, t) );
// add vertex colors
colors.push_back( Color(CM_HSV, s, 0.5f, 0.75f) );
}
}
gl::VboMesh::Layout layout;
layout.setStaticPositions();
layout.setStaticColorsRGB();
layout.setStaticIndices();
layout.setStaticTexCoords2d();
mMesh = gl::VboMesh(vertices.size(), indices.size(), layout, GL_TRIANGLES);
mMesh.bufferPositions(vertices);
mMesh.bufferColorsRGB(colors);
mMesh.bufferIndices(indices);
mMesh.bufferTexCoords2d(0, coords);
// play audio using the Cinder FMOD block
FMOD::System_Create( &mFMODSystem );
mFMODSystem->init( 32, FMOD_INIT_NORMAL | FMOD_INIT_ENABLE_PROFILE, NULL );
mFMODSound = nullptr;
mFMODChannel = nullptr;
playAudio( findAudio( mAudioPath ) );
mIsMouseDown = false;
mMouseUpDelay = 30.0;
mMouseUpTime = getElapsedSeconds() - mMouseUpDelay;
// the texture offset has two purposes:
// 1) it tells us where to upload the next spectrum data
// 2) we use it to offset the texture coordinates in the shader for the scrolling effect
mOffset = 0;
}
void CatalogApp::initBrightVbo()
{
gl::VboMesh::Layout layout;
layout.setStaticPositions();
layout.setStaticTexCoords2d();
layout.setStaticColorsRGB();
int numVertices = FBO_WIDTH * FBO_HEIGHT;
// 1 quad per particle
// 2 triangles make up the quad
// 3 points per triangle
mBrightVbo = gl::VboMesh( numVertices * 2 * 3, 0, layout, GL_TRIANGLES );
float s = 0.5f;
Vec3f p0( -s, -s, 0.0f );
Vec3f p1( -s, s, 0.0f );
Vec3f p2( s, s, 0.0f );
Vec3f p3( s, -s, 0.0f );
Vec2f t0( 0.0f, 0.0f );
Vec2f t1( 0.0f, 1.0f );
Vec2f t2( 1.0f, 1.0f );
Vec2f t3( 1.0f, 0.0f );
vector<Vec3f> positions;
vector<Vec2f> texCoords;
vector<Color> colors;
for( int x = 0; x < FBO_WIDTH; ++x ) {
for( int y = 0; y < FBO_HEIGHT; ++y ) {
float u = (float)x/(float)FBO_WIDTH;
float v = (float)y/(float)FBO_HEIGHT;
Color c = Color( u, v, 0.0f );
positions.push_back( p0 );
positions.push_back( p1 );
positions.push_back( p2 );
texCoords.push_back( t0 );
texCoords.push_back( t1 );
texCoords.push_back( t2 );
colors.push_back( c );
colors.push_back( c );
colors.push_back( c );
positions.push_back( p0 );
positions.push_back( p2 );
positions.push_back( p3 );
texCoords.push_back( t0 );
texCoords.push_back( t2 );
texCoords.push_back( t3 );
colors.push_back( c );
colors.push_back( c );
colors.push_back( c );
}
}
mBrightVbo.bufferPositions( positions );
mBrightVbo.bufferTexCoords2d( 0, texCoords );
mBrightVbo.bufferColorsRGB( colors );
mBrightVbo.unbindBuffers();
}
void Controller::createSphere( gl::VboMesh &vbo, int res )
{
float X = 0.525731112119f;
float Z = 0.850650808352f;
static Vec3f verts[12] = {
Vec3f( -X, 0.0f, Z ), Vec3f( X, 0.0f, Z ), Vec3f( -X, 0.0f, -Z ), Vec3f( X, 0.0f, -Z ),
Vec3f( 0.0f, Z, X ), Vec3f( 0.0f, Z, -X ), Vec3f( 0.0f, -Z, X ), Vec3f( 0.0f, -Z, -X ),
Vec3f( Z, X, 0.0f ), Vec3f( -Z, X, 0.0f ), Vec3f( Z, -X, 0.0f ), Vec3f( -Z, -X, 0.0f ) };
static GLuint triIndices[20][3] = {
{0,4,1}, {0,9,4}, {9,5,4}, {4,5,8}, {4,8,1}, {8,10,1}, {8,3,10}, {5,3,8}, {5,2,3}, {2,7,3},
{7,10,3}, {7,6,10}, {7,11,6}, {11,0,6}, {0,1,6}, {6,1,10}, {9,0,11}, {9,11,2}, {9,2,5}, {7,2,11} };
gl::VboMesh::Layout layout;
layout.setStaticPositions();
layout.setStaticNormals();
mPosCoords.clear();
mNormals.clear();
for( int i=0; i<20; i++ ){
drawSphereTri( verts[triIndices[i][0]], verts[triIndices[i][1]], verts[triIndices[i][2]], res );
}
float z = 0.0f;
float s = 0.05f;
float y1 = -0.975f;
float y2 = -1.1f;
Vec3f v0 = Vec3f( z, y1, z );
Vec3f v1 = Vec3f( s, y2, s );
Vec3f v2 = Vec3f(-s, y2, s );
Vec3f v3 = Vec3f(-s, y2,-s );
Vec3f v4 = Vec3f( s, y2,-s );
mPosCoords.push_back( v1 ); // back
mPosCoords.push_back( v2 );
mPosCoords.push_back( v0 );
mPosCoords.push_back( v4 ); // right
mPosCoords.push_back( v1 );
mPosCoords.push_back( v0 );
mPosCoords.push_back( v3 ); // front
mPosCoords.push_back( v4 );
mPosCoords.push_back( v0 );
mPosCoords.push_back( v2 ); // left
mPosCoords.push_back( v3 );
mPosCoords.push_back( v0 );
mPosCoords.push_back( v1 ); // bottom
mPosCoords.push_back( v2 );
mPosCoords.push_back( v3 );
mPosCoords.push_back( v1 ); // bottom
mPosCoords.push_back( v3 );
mPosCoords.push_back( v4 );
mNormals.push_back( Vec3f::zAxis() ); // back
mNormals.push_back( Vec3f::zAxis() );
mNormals.push_back( Vec3f::zAxis() );
mNormals.push_back( Vec3f::xAxis() ); // right
mNormals.push_back( Vec3f::xAxis() );
mNormals.push_back( Vec3f::xAxis() );
mNormals.push_back(-Vec3f::zAxis() ); // front
mNormals.push_back(-Vec3f::zAxis() );
mNormals.push_back(-Vec3f::zAxis() );
mNormals.push_back( Vec3f::xAxis() ); // left
mNormals.push_back( Vec3f::xAxis() );
mNormals.push_back( Vec3f::xAxis() );
mNormals.push_back( Vec3f::yAxis() ); // bottom
mNormals.push_back( Vec3f::yAxis() );
mNormals.push_back( Vec3f::yAxis() );
mNormals.push_back( Vec3f::yAxis() ); // bottom
mNormals.push_back( Vec3f::yAxis() );
mNormals.push_back( Vec3f::yAxis() );
vbo = gl::VboMesh( mPosCoords.size(), 0, layout, GL_TRIANGLES );
vbo.bufferPositions( mPosCoords );
vbo.bufferNormals( mNormals );
}
