warp effect problem

[OmarYasser]

hello,

I have an error with the warp effect, when I put the effect on the shape he goes like this, moves out the shape edges

[Mylenium]

Effects always operate relative to the layer and a shape layer is always the size of the composition. Your shape is not perfectly centered, so inevitably there's an offset. Adjust the position of the shape group for your rectangle. Also consider pre-composing your shapes to get predictable results.

Mylenium 

[OmarYasser]

pre-composing works, but I put the shape in the middle of the composition  Still the same problem

[Towerguy]

Hi Omar, you have the bend set at 50 so it's doing what it is supposed to do. Set it to 0 and it should straighten out.

[thepixelsmith]

What you are experiencing is the way the warp effect applies to shape layers.

It's not a glitch, it's just the way shape layers are affected by Warp.

I assume it has to do wth the way the dimensions of a shape layer are calculated vs the dimensions of the shapes on that layer.

If you just need to warp a rectangle you can use a Solid layer instead of a shape. 

If you have to use a shape layer you either need to pre–compose it or adjust the shapes position until yo uget the look you want.