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TransformStatic , update rotation Reset skew , scale , why ? PIXI

BMM_Archive · July 15, 2026

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Original Source

  • Original title: TransformStatic , update rotation Reset skew , scale , why ? PIXI
  • Original author: Jonforum
  • Original date: January 13, 2018
  • Source thread: https://forums.rpgmakerweb.com/threads/transformstatic-update-rotation-reset-skew-scale-why-pixi.89858/
  • Source forum path: Game Development Engines > RPG Maker Javascript Plugins > Learning Javascript

Summary

hi guys, am trying to make a simple easing loop animation. For this, I need pass a obj scrope with propreties. So, i pass the TransformStatic scope. How i can perform correctly and update skew, scale, and rotation.

Archived First Post

hi guys, am trying to make a simple easing loop animation.
For this, I need pass a obj scrope with propreties.
So, i pass the TransformStatic scope.

How i can perform correctly and update skew, scale, and rotation.
Rotation seem to always reset my transform!, maybe am not understand correctly how this work.
thank for help

34860371-ef1d32a6-f72a-11e7-923c-e185c695564c.png


i have found an tempory alternative for now, i have modify the update of my EASE animation system.
The problem is that I have to point to 2d properties. ( this[props][props2] )
and this not good for performance in the update.

ideally I would like a suggestion to manage everything in TransformStatic.
So for now instead pass TransformStatic, i pass the PIXI.SPRITE, and use props
this.rotation,..
this.x, ...
this.alpha..
this.skew.x ..(2D deep mode for udpate)
this.scale.x ..(2D deep mode for udpate)

but what i need to do its something like this .
PHP: 
 // from scope TransformStatic
this._cx = newValur;
this._cy = newValur;
this._sy = newValur;
this._rotation = newValur; // not work when upd localID!?
this._localID++; // this seem to update all transform but not the rotation
// so
this.rotation = newValur;
//!!! ho, rotation reset all data transform!! why and how fixe this

this its the update easing, see at // its 2d PIXI DEEP PROPRETY

PHP: 
          for(var prop in this._valuesEnd) {
              if(typeof this._valuesEnd[prop]==='number'){
              var start = this._valuesStart[prop];
              var end = this._valuesEnd[prop];
              this._valueSetCallback(this._object, prop, start + (end - start) * progress);
              }else{ // its 2d PIXI DEEP PROPRETY
                  for(var prop2D in this._valuesEnd[prop]) {
                      var start = this._valuesStart[prop][prop2D];
                      var end = this._valuesEnd[prop][prop2D];
                      this._valueSetCallback(this._object[prop], prop2D, start + (end - start) * progress);
            
                  }
              }
          }

i need to find a way to use all _props in the transformatic
[scale,skew,rotation] and the localID++ for update, but without reset data, for avoid use 2D deep object.

it is not urgent because my alternative works, but at the expense of a loss of optimization.
thank


https://github.com/pixijs/pixi.js/blob/dev/src/core/display/TransformStatic.js#L177

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