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Question by
ROM · Aug 14, 2010 at 09:17 PM ·
iphonetransparencytrailblob
Splatter effect?
I have a marble rolling around an iPhone screen currently and behind it there is a background. I want the background to be obscured at first so it cannot be seen and as you move the ball around it is slowly revealed in the trail of the ball. A bit like "De Blob" in reverse (Screenshot attached). Does anyone have any idea how I might go about doing this? Obviously it's on the iPhone so in this sense I am somewhat limited.
Thanks in advance!
De Blob:
Comment
Answer by Julian-Glenn · Aug 15, 2010 at 02:03 AM
Not sure what you mean by 'revealed in the trail of the blob" but if you mean a "Fog of War" type set-up here's some info to look at:
http://answers.unity3d.com/questions/7409/how-would-i-do-fog-of-war