This is an improved version of the frame-buffer distortion sample currently shipping with Panda3D 1.6.2. Whereas the original sample just samples a wave texture to offset the frame-buffer sample location, the shader in this version actually uses normals from the Egg model. It also gives a slight tint to the object. You can easily adjust the color and intensity of the tint at the top of the “distortion.sha” file.
And here’s the download.

anyone noticed that the image distorted by the sphere appears to be constantly moving? intresting thing.