Post by emilygraham » Wed Mar 28, 2012 3:26 pm

Has anyone had a problem with the loading of images in the image slideshow? I am using Opencart 1.5.1.3 and have 3 images all of around 50KB in size. With two in the slideshow the images load instantly and transition smoothly. If i add a third, still with a size of 50KB, there is a delay intially loading the first image on some machines (not mine the clients) and the images do not transition so smoothly. Has anyone else come across a similiar problem?
Last edited by emilygraham on Tue Apr 03, 2012 8:37 pm, edited 1 time in total.

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Post by droconut » Wed Mar 28, 2012 4:57 pm

could you give an example? to me the loading issue sounds more like randomly slow internet. Non smooth transitions - dunno - example please.

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Post by emilygraham » Wed Mar 28, 2012 6:37 pm

Hi there, thanks for your response. I have re-added the image that is causing loading problems, though as i say, i cannot reproduce the issue on my config - the customer assures me that it works fine without the 'pink' image, but problems occur with the 'pink' image.

by non-smooth transitions i mean that it sometimes takes 4 seconds to transition to the next slide but sometimes takes 10/15......

Appreciate your comments
Last edited by emilygraham on Tue Apr 03, 2012 8:36 pm, edited 1 time in total.

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Post by Magic Toolbox » Wed Mar 28, 2012 11:49 pm

Your images are in PNG format. Convert them to JPEG and compress them by about 50% and they'll download a lot faster.

To save more time, you can try using Magic Slideshow which loads faster than nivoslider and does not require jQuery.

http://www.opencart.com/index.php?route ... on_id=5324

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Post by emilygraham » Thu Mar 29, 2012 12:49 am

Thanks will try that :-)

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Post by emilygraham » Thu Mar 29, 2012 1:07 am

I can't seem to get the images to compress any lower than about 55KB - if i save as a JPEG (using GIMP) and then use an image optimiser such as http://www.imageoptimizer.net to compress it still gives me the same size file - any other programs that may help compress further?

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Post by Magic Toolbox » Thu Mar 29, 2012 1:26 am

Did you use JPEG with 50% compression in GIMP? That should do the trick. Or even 40%.

After that, you could also try http://punypng.com/

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Post by droconut » Thu Mar 29, 2012 3:16 am

works super - druper for me. don't know what unsmooth transition or slow loading time you mean :puzzled:

Droconut SLIDERS v1.23 - customizable image and content slider with caption
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Post by emilygraham » Tue Apr 03, 2012 8:36 pm

Thanks for your help folks - using 50% compression lost some granularity in the image quality and punnypng didn't reduce them in size any more than imageoptimizer.net. However having been to the customer site and checked it out on their machine i wasn't able to reproduce either so can only put it down to a 'one-off'!

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