Question about worldTransform in v2 and v3

[Mathieu Anthoine]

Hi,

 

After looking at PixiJs code, I guess that The worlTransform informations of DisplayObjects are updated only in the render, by calling the private method updateTransform().

 

In some cases, it's a bit boring.

 

Here's a tricky situation I have in PixiJs v2:

 

1) I add a DisplayObjectContainer A to the stage and apply some transformations ( (scale, positions...)

2) I create a DisplayObjectContainer B but don't added it to the stage

3) I add a Sprite C in B

4) I add B in A

5) I call toGlobal on C

 

--> wrong results on toGlobal (because the worlTransform of C has not been updated when B has been added in A (that means C is now added to the displayList, its stage is no longer null))

 

If I execute 4 before 3, it works fine, toGlobal returns right values.

 

Sometimes I can't change my code (for example if I use pooling on DisplayObjects), is there a way to know when a DisplayObject is added to the displayList (when its stage property changes from null to the stage reference) ? Something similar to AS3 Event ADDED_TO_STAGE ?

 

Is the behavior similar in Pixi v3 ?

 

Thanks

[xerver]

We literally just merged this, not even 24 hours ago:

 

https://github.com/GoodBoyDigital/pixi.js/pull/1870

[Mathieu Anthoine]

hehe excellent

Thank you !!