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WPF transitions using pixel shaders and Blend SDK

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WPF transitions are a very nice way to turn standard, boring application interactions into great user experiences, and show the author pays attention to details. There are basically two ways of implementing transitions in WPF. You can do a manual transition using RenderTransform to modify the visuals’ position, scaling and rotation. Throwing in an opacity animation would improve the effect. This option is talked more in-depth here. However, there is a couple of problems with this approach. The biggest issue is that such transitions are CPU bound, since the transition is calculated on the main processor. The other problem
is more prosaic – they are relatively hard to implement. The other way is to utilize pixel shaders to blend between two visuals’ images making the illusion of transition. Transitions done this way are GFX bound, offloading the CPU which can perform other useful tasks. Besides, they look just awesome, as you shall see in a moment :) There is a small problem associated with this approach, though. To write custom pixel shader, some GFX knowledge accompanied by HLSL might be required. Crafting nice effect probably would also require a bit of math :) Thankfully, there are some nice libraries...(Read whole news on source site)

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