[Interest] [QT3d] Does anyone have any idea how to position a light in C++?

[Pierre Chicoine]

Oleg

Thanks for the reply.

Here's the code I hung off of the root entity. Didn't work. Maybe I'm
translating from QML improperly. ??

 // parent is the root entity

 Qt3DCore::QEntity * pLightEntity = new Qt3DCore::QEntity(parent); //
hang off of root


 Qt3DRender::QPointLight * pQPointLight = new Qt3DRender::QPointLight();

 pLightEntity->addComponent(pQPointLight);

 //pQPointLight->setColor(QColor::fromRgbF(1.0, 1.0, 1.0, 1.0));

 //pQPointLight->setIntensity(4);

 //pQPointLight->setEnabled(true);


 Qt3DCore::QTransform * pLightQTransform = new Qt3DCore::QTransform();

 pLightEntity->addComponent(pLightQTransform);

 pLightQTransform->setTranslation(QVector3D(0,0,300));




On Sat, Jun 11, 2016 at 4:11 AM, Oleg Evseev <ev.mipt at gmail.com> wrote:

> Create new entity with transform and light components, add this entity to
> the root entity to light the whole scene. One light with one transform.
>
> Run the "lights" example and you'll understand the principle.
>
> Or you can "pack" several of such entities (with lights and theirs own
> transforms) into one entity (and add it to the root entity) with one
> transform to [strike]rule[/strike] transform them all simultaneously. It's
> up to you.
>
> I've not tested all of this, but this is how it works looking on examples.
>
> Regards, Oleg.
>
>
> 2016-06-11 14:01 GMT+03:00 Pierre Chicoine <pierrechicoine606 at gmail.com>:
>
>> With a point light, did you mean add a point light and transform to every
>> entity or to the root entity to light the whole scene with one transform?
>>
>> Thanks for the reply Oleg.
>> On Jun 11, 2016 3:52 AM, "Oleg Evseev" <ev.mipt at gmail.com> wrote:
>>
>>> Do you mean point light?
>>> Example "lights" is not what are you looking for?
>>>
>>> This is in qml but obviously it is not so hard to write it in c++ just
>>> add components QTransform and QPointLight to the QEntity and it will work
>>> (I think).
>>>
>>> Regards, Oleg.
>>>
>>> 2016-06-11 13:43 GMT+03:00 Pierre Chicoine <pierrechicoine606 at gmail.com>
>>> :
>>>
>>>> Am I missing something simple. I can't seem to position a light in QT3D
>>>> Any ideas anyone?
>>>>
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>>>
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