I’ve run a problem multiple times now with Flash Player and animating the alpha property of an object that contains text. For some reason, when using “Anti-alias for readability” or “Custom anti-alias”, there is a noticeable jump in appearance between 0.78515625 (201/256) and 0.7890625 (202/256), as though it is actually changing the method that is used to blend the sub-pixels at that point. It is highly distracting, and makes it impossible to smoothly change the opacity of text fields. Here is an example that shows the abrupt change between these two alpha levels:
One solution is to change the anti-aliasing mode to “Anti-alias for animation”, but then the letterforms get muddy and pretty ugly to view. Another option is to change the layer mode to “lighten” or “darken”, but this only works in cases where the text is black or white.
Has anyone else discovered a real solution to this problem? I haven’t seen it discussed anywhere, but maybe my Google-fu is simply failing me.
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