foamGltfSceneTemplates.C

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    Copyright (C) 2021 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
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    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
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template<class Type>
Foam::label Foam::glTF::scene::addField
(
    const Type& fld,
    const word& name,
    const label target
)
{
    const label nComponents = pTraits<typename Type::value_type>::nComponents;
 
    auto& bv = bufferViews_.create(name);
    bv.byteOffset() = bytes_;
    bv.byteLength() = fld.size()*nComponents*sizeof(float);
    if (target != -1)
    {
        bv.target() = target;
    }
    bytes_ += bv.byteLength();
 
    auto& acc = accessors_.create(name);
    acc.bufferViewId() = bv.id();
    acc.set(fld);
 
    auto& obj = objects_.create(name);
    obj.addData(fld);
 
    return acc.id();
}
 
 
template<class Type>
Foam::label Foam::glTF::scene::addMesh(const Type& fld, const word& name)
{
    const label accessorId =
        addField(fld, name, key(targetTypes::ARRAY_BUFFER));
 
    auto& mesh = meshes_.create(name);
    mesh.accessorId() = accessorId;
 
    return meshes_.size() - 1;
}
 
 
template<class Type>
Foam::label Foam::glTF::scene::addFieldToMesh
(
    const Type& fld,
    const word& name,
    const label meshi
)
{
    if (meshi > meshes_.size() - 1)
    {
        FatalErrorInFunction
            << "Mesh " << meshi << " out of range "
            << (meshes_.size() - 1)
            << abort(FatalError);
    }
 
    const label accessorId = addField(fld, name);
 
    meshes_[meshi].addField(name, accessorId);
 
    return accessorId;
}
 
 
// ************************************************************************* //