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    <p>You can do this via the <code>iCarousel</code>'s <code>iCarouselTypeCustom</code> type in the delegate method </p> <pre><code>- (CATransform3D)carousel:(iCarousel *)carousel itemTransformForOffset:(CGFloat)offset baseTransform:(CATransform3D)transform </code></pre> <p>Just set the type of the carousel (e.g. in <code>viewDidLoad</code> of the carousel's view controller):</p> <pre><code>self.carousel.type = iCarouselTypeCustom; </code></pre> <p>And calculate the transform as you like. I've laid the objects on a hyperbola, and shrink them in addition a bit as they move away from the center. That quite resembles your image, I think:</p> <pre><code>- (CATransform3D)carousel:(iCarousel *)carousel itemTransformForOffset:(CGFloat)offset baseTransform:(CATransform3D)transform { const CGFloat offsetFactor = [self carousel:carousel valueForOption:iCarouselOptionSpacing withDefault:1.0f]*carousel.itemWidth; //The larger these values, as the items move away from the center ... //... the faster they move to the back const CGFloat zFactor = 150.0f; //... the faster they move to the bottom of the screen const CGFloat normalFactor = 50.0f; //... the faster they shrink const CGFloat shrinkFactor = 3.0f; //hyperbola CGFloat f = sqrtf(offset*offset+1)-1; transform = CATransform3DTranslate(transform, offset*offsetFactor, f*normalFactor, f*(-zFactor)); transform = CATransform3DScale(transform, 1/(f/shrinkFactor+1.0f), 1/(f/shrinkFactor+1.0f), 1.0); return transform; } </code></pre> <p>and the result: <img src="https://i.stack.imgur.com/DoRPk.png" alt="result"></p> <p>you can adjust the float constants to your liking.</p> <p>For moving items around a circle while scaling them just use goniometric functions for translation, then rotate and scale:</p> <pre><code>- (CGFloat)carousel:(iCarousel *)carousel valueForOption:(iCarouselOption)option withDefault:(CGFloat)value { if (option == iCarouselOptionSpacing) { return value * 2.0f; } if(option == iCarouselOptionVisibleItems) { return 11; } if(option == iCarouselOptionWrap) return YES; return value; } - (CATransform3D)carousel:(iCarousel *)carousel itemTransformForOffset:(CGFloat)offset baseTransform:(CATransform3D)transform { const CGFloat radius = [self carousel:carousel valueForOption:iCarouselOptionRadius withDefault:200.0]; const CGFloat offsetFactor = [self carousel:carousel valueForOption:iCarouselOptionSpacing withDefault:1.0f]*carousel.itemWidth; const CGFloat angle = offset*offsetFactor/radius; //... the faster they shrink const CGFloat shrinkFactor = 2.0f; //hyperbola (now only for shrinking purposes) CGFloat f = sqrtf(offset*offset+1)-1; transform = CATransform3DTranslate(transform, radius*sinf(angle), radius*(1-cosf(angle)), 0.0); transform = CATransform3DRotate(transform, angle, 0, 0, 1); transform = CATransform3DScale(transform, 1/(f*shrinkFactor+1.0f), 1/(f*shrinkFactor+1.0f), 1.0); return transform; } </code></pre> <p>and again, the result: <img src="https://i.stack.imgur.com/QF65T.png" alt="result2"></p> <p>you can adjust the spacing and the radius in the <code>carousel:valueForOption:withDefault:</code> method.</p> <p>Enjoy! :)</p>
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    1. COI was trying something different to what is in here. and your solution perfectly worked for me. I got my desired result.
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