Cover flow visually wrong

[cmahnke]

I would like to use the cover flow effect, but it's visually less appealing then the original. The main disadvantages / issues are:

• The spacing between elements needs to be set to a negative value.
• The rotation value need to be have a positive and negative maximum value, currently the rotation is applied depending on the distance to the center, this leads to the unpleasent outcome that if one has many items in a row the outer ones wrap around when sliding throu them.

Even if the current effect is working as expected, it would be nice to be able to configure it to work correctly, like with the Z-axis setting.

Have a look here to see what is considered to be "cover flow":

• Generic
• Apple original

[cmahnke]

There are even more issues:

• The start position is always set to the left, it should at least be center, even more desirable would be a scale 0 to 1 (left and right, center would be .5)
  • There is centeredSlides: true, but that for some reason sets the initial activeIndex to the last slide, which is clearly a bug, since not even this is working:

  on: {
      afterInit: function (swiper) {
        swiper.slideTo(0, 0)
      },
    },
  

• The perspective point should be adjustable, if it should be relative to the item or all items
  • This can be done by setting perspective to () => false in effectInit- this needs to be configurable
• setTranslate is called for every slide and is then checking in turn each slide, which results in 10000 iterations if there are 100 items in the slider, which shouldn't be unusual for a real cover flow. This is another major bug / design flaw...
  One can work around it by looping through swiper.visibleSlidesIndexes
• If one issues a console.log statement within each of those loops and adds a afterInit also doing a console.log one can see that the event is fired before the addon is initialized. It seems to me, that the initial setup isn't considered part of the init, which makes it hard to act after that...
• The stretch can't be set to negative values