[Interest] Qt3D memory leaks

[Igor Mironchik]

Hello,

3Dtree has been updated. Now autumn is animated. Removed hand-made 
classes of leaf geometry and mesh. Now example uses ready mesh prepared 
in Blender. Modified a little constants of the tree. Example looks nice. 
This is a benchmark of your video card, because leafs and branches are 
stand alone objects (QEntity). For example 5 years tree has ~ 900 
objects. My Intel Pentium with Intel HD graphics normally paint only 5 
years tree, 6 years tree starts to slow down.

And one more - now you can rotate the tree with the left mouse button.


11.04.2017 12:15, Igor Mironchik пишет:
>
> Hi,
>
> I fixed a little 3Dtree. Now branches positions are correct. And I 
> know that not all leafs is visible (this is because leaf geometry is 
> implemented as plain which renders only on one side).
>
>
> 10.04.2017 13:20, Igor Mironchik пишет:
>>
>> Hello,
>>
>> I guess that Qt3D has huge memory leaks.
>>
>> You can check it on this example: https://github.com/igormironchik/3Dtree
>>
>> It's 3D tree, that grows year by year.
>>
>> By default tree will grow 5 years (5 minutes).
>>
>> When tree grown you can restart tree. And here I delete all resources:
>>
>> void
>>
>> MainWindowPrivate::createTree()
>> {
>> if(m_tree)
>> {
>> for(constauto&e:m_rootEntity->childNodes())
>> e->deleteLater();
>> }
>> m_tree=newBranch(m_startPos,m_endPos,c_startBranchRadius,
>> true,m_rootEntity);
>> m_tree->setAge(0.0f);
>> m_tree->updatePosition();
>> m_tree->placeLeafs();
>> }
>>
>> But a lot of memory are eaten.
>

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