QJSValue THREEVector3::cross( QJSValue threeVecV, QJSValue threeVecW ) {
qDebug() << "THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead.";
return crossVectors(threeVecV, threeVecW);
}
void TorusKnotGeometry::initialize( float radius,
float tube,
size_t radialSegments,
size_t tubularSegments,
float p,
float q,
float heightScale ) {
std::vector<std::vector<int>> grid;
grid.resize( radialSegments );
auto tang = Vector3();
auto n = Vector3();
auto bitan = Vector3();
for ( size_t i = 0; i < radialSegments; ++ i ) {
auto u = (float)i / (float)radialSegments * 2.f * p * Math::PI();
Vector3 p1 = getPos( u, q, p, radius, heightScale );
Vector3 p2 = getPos( u + 0.01f, q, p, radius, heightScale );
tang.subVectors( p2, p1 );
n.addVectors( p2, p1 );
bitan.crossVectors( tang, n );
n.crossVectors( bitan, tang );
bitan.normalize();
n.normalize();
for ( size_t j = 0; j < tubularSegments; ++ j ) {
auto v = (float)j / (float)tubularSegments * 2.f * Math::PI();
auto cx = - tube * Math::cos( v ); // TODO: Hack: Negating it so it faces outside.
auto cy = tube * Math::sin( v );
auto pos = Vector3();
pos.x = p1.x + cx * n.x + cy * bitan.x;
pos.y = p1.y + cx * n.y + cy * bitan.y;
pos.z = p1.z + cx * n.z + cy * bitan.z;
this->vertices.push_back( pos );
grid[ i ].push_back( this->vertices.size() - 1 );
}
}
for ( size_t i = 0; i < radialSegments; ++ i ) {
for ( size_t j = 0; j < tubularSegments; ++ j ) {
auto ip = ( i + 1 ) % radialSegments;
auto jp = ( j + 1 ) % tubularSegments;
auto a = grid[ i ][ j ];
auto b = grid[ ip ][ j ];
auto c = grid[ ip ][ jp ];
auto d = grid[ i ][ jp ];
auto uva = Vector2( (float)i / (float)radialSegments, (float)j / (float)tubularSegments );
auto uvb = Vector2( (float)( i + 1 ) / (float)radialSegments, (float)j / (float)tubularSegments );
auto uvc = Vector2( (float)( i + 1 ) / (float)radialSegments, (float)( j + 1 ) / (float)tubularSegments );
auto uvd = Vector2( (float)i / (float)radialSegments, (float)( j + 1 ) / (float)tubularSegments );
this->faces.push_back( Face3( a, b, d ) );
this->faceVertexUvs[ 0 ].push_back( toArray( uva, uvb, uvd ) );
this->faces.push_back( Face3( b, c, d ) );
this->faceVertexUvs[ 0 ].push_back( toArray( uvb.clone(), uvc, uvd.clone() ) );
}
}
this->computeCentroids();
this->computeFaceNormals();
this->computeVertexNormals();
}
