openlayers/ol3 — pull request #37 by tschaub (2012-10-02 04:29:07+00:00)
Title: Using a CSS fitler to deal with hue, sat, etc

Interested to hear what values others see in this. This is a Webkit only feature at this point. And it negatively affects performance to have the css filter applied.

The mapping to WebGL saturation isn't spot on, but can be tweaked if others think this is worthwhile.

My opinion is that the case for `layer.setHue(h)` et al. is fairly fringe. I do see value in providing the ability to perform more general transforms/operations on pixel data, but I'm not convinced we need to support setting hue, saturation, brightness, and contrast.