84903 2012-04-25 16:24:32 -0700 [CSS Shaders] CSS shaders should be able to animate from "none" to custom() 2014-03-02 09:34:02 -0800 1 1 1 Unclassified WebKit CSS 528+ (Nightly build) Unspecified Unspecified RESOLVED INVALID P2 Normal --- 1 achicu webkit-unassigned jnetterfield krit oldest_to_newest 610142 0 achicu 2012-04-25 16:24:32 -0700 There's no way to know what are the default values on a CSS Shader filter. By default I mean, values that if passed to the shader, will not disort the image in any way, so that it could be equivalent to the passthrough filter. There's a bug on the spec tracking the @rule, that might fix it by letting the page specify what are the default values. https://www.w3.org/Bugs/Public/show_bug.cgi?id=16861