void TriangulationApp::recalcMesh()
{
TriMesh2d mesh = Triangulator( mShape, mPrecision ).calcMesh( Triangulator::WINDING_ODD );
mNumPoints = mesh.getNumIndices();
mVboMesh = gl::VboMesh( mesh );
mOldPrecision = mPrecision;
}
void BasicSampleApp::triangulate()
{
// Triangulate line
TriMesh2d mesh = Triangulator( mLine ).calcMesh();
// Rebuild list of triangles from mesh
mTriangles.clear();
Vec2f a, b, c;
for ( uint32_t i = 0; i < mesh.getNumTriangles(); i++ ) {
mesh.getTriangleVertices( i, &a, &b, &c );
Trianglef triangle( c, b, a );
mTriangles[ i ] = triangle;
}
}
void FaceController::prepareFaceToSave(TriMesh2d mesh, gl::Texture surf, float headScale)
{
genericName = "surf_"+to_string(facesStoreVector.size()) + ".png";
Rectf rect = mesh.calcBoundingBox();
vector<ci::Vec2f> savecords;
savecords.clear();
for (int i = 0; i < mesh.getNumVertices(); i++)
savecords.push_back(Vec2f( ( mesh.getVertices()[i].x-rect.x1 )/surf.getWidth(), (mesh.getVertices()[i].y -rect.y1)/surf.getHeight()));
FaceObject newface;
newface.setPoints(savecords);
newface.setTexName(genericName);
newface.setTexture(surf);
facesStoreVector.push_back(newface);
writeImage( getAppPath() /FACE_STORAGE_FOLDER/genericName, surf);
}
void DelayFeedback::loadMesh()
{
Rectf boundingBox( - MAX_RADIUS, - MAX_RADIUS, MAX_RADIUS, MAX_RADIUS );
TriMesh2d mesh;
mesh.appendVertex( boundingBox.getUpperLeft() );
mesh.appendTexCoord( Vec2f( -1, -1 ) );
mesh.appendVertex( boundingBox.getLowerLeft() );
mesh.appendTexCoord( Vec2f( -1, 1 ) );
mesh.appendVertex( boundingBox.getUpperRight() );
mesh.appendTexCoord( Vec2f( 1, -1 ) );
mesh.appendVertex( boundingBox.getLowerRight() );
mesh.appendTexCoord( Vec2f( 1, 1 ) );
mesh.appendTriangle( 0, 1, 2 );
mesh.appendTriangle( 2, 1, 3 );
mMesh = gl::VboMesh::create( mesh );
}
VboMesh::VboMesh( const TriMesh2d &triMesh, Layout layout )
: mObj( shared_ptr<Obj>( new Obj ) )
{
if( layout.isDefaults() ) { // we need to start by preparing our layout
if( triMesh.hasColorsRgb() )
mObj->mLayout.setStaticColorsRGB();
if( triMesh.hasColorsRgba() )
mObj->mLayout.setStaticColorsRGBA();
if( triMesh.hasTexCoords() )
mObj->mLayout.setStaticTexCoords2d();
mObj->mLayout.setStaticIndices();
mObj->mLayout.setStaticPositions();
}
else
mObj->mLayout = layout;
mObj->mPrimitiveType = GL_TRIANGLES;
mObj->mNumIndices = triMesh.getNumIndices();
mObj->mNumVertices = triMesh.getNumVertices();
initializeBuffers( false );
// upload the indices
getIndexVbo().bufferData( sizeof(uint32_t) * triMesh.getNumIndices(), &(triMesh.getIndices()[0]), (mObj->mLayout.hasStaticIndices()) ? GL_STATIC_DRAW : GL_STREAM_DRAW );
// upload the verts
for( int buffer = STATIC_BUFFER; buffer <= DYNAMIC_BUFFER; ++buffer ) {
if( ! mObj->mBuffers[buffer] )
continue;
uint8_t *ptr = mObj->mBuffers[buffer].map( GL_WRITE_ONLY );
bool copyPosition = ( buffer == STATIC_BUFFER ) ? mObj->mLayout.hasStaticPositions() : mObj->mLayout.hasDynamicPositions();
bool copyColorRGB = ( ( buffer == STATIC_BUFFER ) ? mObj->mLayout.hasStaticColorsRGB() : mObj->mLayout.hasDynamicColorsRGB() ) && triMesh.hasColorsRgb();
bool copyColorRGBA = ( ( buffer == STATIC_BUFFER ) ? mObj->mLayout.hasStaticColorsRGBA() : mObj->mLayout.hasDynamicColorsRGBA() ) && triMesh.hasColorsRgba();
bool copyTexCoord2D = ( ( buffer == STATIC_BUFFER ) ? mObj->mLayout.hasStaticTexCoords2d() : mObj->mLayout.hasDynamicTexCoords2d() ) && triMesh.hasTexCoords();
for( size_t v = 0; v < mObj->mNumVertices; ++v ) {
if( copyPosition ) {
const Vec2f &p = triMesh.getVertices()[v];
*(reinterpret_cast<Vec3f*>(ptr)) = Vec3f( p.x, p.y, 0 );
ptr += sizeof( Vec3f );
}
if( copyColorRGB ) {
*(reinterpret_cast<Color*>(ptr)) = triMesh.getColorsRGB()[v];
ptr += sizeof( Color );
}
if( copyColorRGBA ) {
*(reinterpret_cast<ColorA*>(ptr)) = triMesh.getColorsRGBA()[v];
ptr += sizeof( Color );
}
if( copyTexCoord2D ) {
*(reinterpret_cast<Vec2f*>(ptr)) = triMesh.getTexCoords()[v];
ptr += sizeof( Vec2f );
}
}
mObj->mBuffers[buffer].unmap();
}
unbindBuffers();
}