GPU based effects
A hot new feature in 3.5 SP1 is GPU based effect. Greg Schechter has has a series of posts on this topic. Its well worth the read. So head over :)
GPU-accelerated custom Effects for WPF
More details on how Effects work
Writing custom GPU-based Effects for WPF
A simple Effect sample project and ClickOnce application
Writing custom Effects - adding parameters to Effects
