Pixi.js: best way for renderable childrens and other obj

[djmisterjon]

Suppose a parent Obj is rendered.
the parent has 4 other sprites. (childrens)
For example, i want to make visible only sprites 2.
What is more efficient in terms of performance for disables all other sprites childs, (0,1,3)

is ?
1: .renderable = false; //for all other sprites
2: .visible = false; // for all other sprites
3: remove childs and keep only the rendered child;

am try understand the update in deep
thank

[themoonrat]

Setting visible to false is quicker than renderable false, as it won't call updateTransform.
I wouldn't remove / add children dynamically. Looping over an array checking a boolean value is going to be lighting quick. Manipulating an array... more effort, and asking for trouble imo.

Now, is your example was with hundreds/thousands of children, and it wasn't a regular changing of visibility, I'd do some benchmarking to find out if having less children helps. But for most situations, just set visibility to false

[ivanpopelyshev]

1st option.

[themoonrat]

Why Ivan? The docs make it out that visibility false cuts out more work than renderable false.

[ivanpopelyshev]

Its in case he has culling algorithm based on getBounds(xxx, false). If he uses true as second param, he can set visible=false instead of renderable=false

[djmisterjon]

in fact, my reasoning was mostly touch the
PIXI.extras.AnimatedSprite.prototype.update
because use the updateTexture.
In fact, i was experiment a small change, but I wondered if the fact that I'm doing the .Renderable = false are better than a remove child, for the global update.

    PIXI.extras.AnimatedSprite.prototype.updateTexture = function updateTexture() {
        this._texture = this._textures[this.currentFrame];
        this._textureID = -1;
        if (this.renderable && this.onFrameChange) { //+ this.renderable fix overleay callback memory fast call
            var ran = Math.random() * 99;
            var len = this._motionContexts.length; // how many context to pass chek
            this.onFrameChange(this.currentFrame, ran, len); //+ pass frame context + ran
        }
    };

is it better to remove all childrens if not need or keep them but in, renderable = false;

[djmisterjon]

getBounds(xxx, false) ??? getBounds (skipUpdate, rect)
http://pixijs.download/dev/docs/PIXI.DisplayObject.html#getBounds
am not understand sorry

[ivanpopelyshev]

I'm talking about first param :)

[djmisterjon]

ok ok
hey thank i lot this solved

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