I took a look to the addComponent implementation and it seems normal that
my code doesn't work because a component is intended to be attached once.
So I don't understand the meaning of the shareable flag.
I'll try to share the geometry instead.
2016-09-30 15:20 GMT+02:00 Xavier Bigand <flamaros.xav...@gmail.com>:
> I am trying to share my QGeometryRenderer between many Entities, but the
> addComponent doesn't have any effect.
>
> When I load our models from files, I save the root entity node in a map,
> and after I clone the node tree when a previously model is in the map.
> I have no issue with the material component that is in the cloned tree,
> but the geometryRenderer isn't printed by my trace method (material and
> geometryRenderer components are at the same level on sub-entities).
>
> I set the shareable flag to true on the geometryRenderer.
>
> PS : for the material component I don't assign the same ptr to the cloned
> model, because I don't want to share the material all attributs. My
> material class have is own clone method to copy only the shareable
> attributs (maps, specular,...).
>
>
> Here is my cloning method :
>
> void Model::cloneModel(Qt3DCore::QEntity* source, Qt3DCore::QEntity&
> destination)
>
> {
>
> QNodeVector sourceEntities = source->childNodes();
>
>
> foreach (QNode* node, sourceEntities)
>
> {
>
> QEntity* sourceSubEntity = dynamic_cast<QEntity*>(node);
>
> QEntity* subEntity = new QEntity(&destination);
>
>
> H3D_ASSERT(sourceSubEntity != nullptr);
>
>
> subEntity->setObjectName(sourceSubEntity->objectName());
>
>
> QComponentVector sourceComponents =
> sourceSubEntity->components();
>
>
> foreach (QComponent* component, sourceComponents)
>
> {
>
> QGeometryRenderer* geometryRenderer =
> dynamic_cast<QGeometryRenderer*>(component);
>
> LightingMaterial* material =
> dynamic_cast<LightingMaterial*>(component);
>
>
> if (geometryRenderer)
>
> {
>
> subEntity->addComponent(geometryRenderer);
>
> LOG_INFO("geometryRenderer %s %s",
> qPrintable(component->metaObject()->className()),
> qPrintable(component->objectName()));
>
> }
>
> else if (material)
>
> {
>
> LightingMaterial* clonedMaterial = new
> LightingMaterial();
>
>
> clonedMaterial->clone(*material);
>
> subEntity->addComponent(clonedMaterial);
>
> }
>
> else if (dynamic_cast<QPhongMaterial*>(component)) // TODO
> to remove
>
> {
>
> }
>
> else if (dynamic_cast<QPhongAlphaMaterial*>(component)) //
> TODO to remove
>
> {
>
> }
>
> else
>
> {
>
> H3D_ASSERT_MSG(false, "Unsupported component type %s",
> qPrintable(component->metaObject()->className()));
>
> }
>
> }
>
> }
>
> }
>
>
> I have this issue with Qt 5.7 and 5.8 build from the git branch.
>
> --
> Xavier
>
--
Xavier
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