I was looking at this site and noticed how the background image seems to move and animate as the user scrolls. Upon inspection of the source code, it showed that this was achieved by changing the background image as the user scrolls. Essentially, it jumps through many frames of images giving the illusion of an animation.
What would be the quickest and easiest way to achieve this? I am using the ScrollMagic library if that would make it easier.
The quickest, easiest way is to listen for scroll events on the element, then change the background url via CSS to the file you want to show. You'll probably need to convert the pure scroll value to a percentage (to account for varying screen sizes), and you'll need an array of images that map to those percentages.
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I'm trying to replicate this scrolling effect as seen here: http://prm.ooo.
In which the image elements flip and rotate continuously on a scroll as it enters and exits the page, I know this requires jquery/javascript and not just CSS alone.
So far I am able to rotate an image while scrolling.
Does anyone know how I can achieve this?
Here is the code: http://prm.ooo/wp-content/themes/prmo/main.js you can look at the source of any page and try and figure out how they did things. People also use plugins like scrollorama for this type of thing
I have a project I'm working on with a full sized fixed background image. What I'm trying to figure out is the best way to have the image start in grayscale, then as the user scrolls down, the color becomes more saturated, until at the end of the page it's full color. I'm looking for a smooth gradual fade in/out of color.
I was thinking of having 2 images, one color and one grayscale on top of each other and change the opacity to get the effect, but that would mean loading 2 large images. Is there a better way by using only one image?
Some of Your options are
do as you say and load 2 images
load just one and use a canvas element to do the desaturation
use the new filter css properties
Best to do a combination of option 1 and 3, using modernizr to determine support
Actually I don't know where to start. I tried somethings with images overlapped but that was bad idea, because of needed many images preloaded.
Question: Is there any handy method to do this?
You could use a sprite image (many images in one, to reduce loading time), and a div container, then change the background position of the image to animate the whole thing.
I would like to get the effect of a zooming image when someone opens a new page. So each page should have it's own image that zooms in every time the page is opened. I have an example in this website: http://www.fashionclub70.be/ (Click the "light version").
If a user clicks on a menuitem the corresponding page is opened and the image zooms in. on this website it is done with Flash, but I would like to use only Javascript for this. I don't really have a working knowledge of Flash. Do you have some pointers for me so I can successfully implement this?
Thanks
Maarten
I guess the easiest solution would be to use something like this : http://sliderjs.org/. Basically, you would put an empty place holder and load your image to some invisible div element.
Then, kick off a transition effect with a callback bound to your image's onload event.
You could use a canvas and put a picture on it. Evertything you would need for this can be found here:
http://www.html5canvastutorials.com/tutorials/html5-canvas-images/
Edit: If you want to use CSS3 you could use
#pix{width:200px;height:300px;transition: all 2s;}
#pic:hover{transform:scale(4) translate(100px,100px)}
This would make the div tagged with this id move to the right and become 4 times as large during a period of 2 seconds.
The :hover part is just an event that would make the transition tick. Guess you want to use :active instead.
I was looking at this gallery:
http://www.orangegirlphotographs.com/portfolio.cfm?galleryID=4
And just loved the way it looked, anyone have any idea how to get a similar effect using ideally CSS/JS and if not then using flash? Furthermore it would be excellent if you could move to the next slide by clicking on the image itself.
I'm also wondering how she is able to maintain height of the images when resizing (unless she is doing it manually which I doubt now days).
I normally use Gallery3 for my image uploading, automatic resizing with AnotherSlider to get a sliding effect but I would really appreciate it if you guys could direct me to something like this?
jQuery's probably your best bet here. I've used the Cycle plugin with slideshows before: http://jquery.malsup.com/cycle/
Look at the examples and you'll get an idea of what it can do: http://jquery.malsup.com/cycle/more.html?v2.23
For the height, either all the images have the same height, or simply setting it in html will keep the ratio. It's better to have them all the same height and resize them in something like Photoshop as the results will be smoother