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Chattering? If that is how you’d describe it
Hey, hey!
I have noticed that when I animate a camera across an image within a 3d space, and the move is fairly slow, the image can judder slightly (not sure if this is how to describe it, but it looks like it is staggering). I have tried motion blurs and frame blending but the only way I can seem to solve the problem is by slowing the camera move right down.
Currently I am working on a project where I cannot slow the camera down, and although I have moved the camera further back which has helped, it hasn’t cured it, I was wondering if anyone has any suggestions? Any help would be gratefully received.
Cheers
Olly
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4 Replies
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If you search the COW archives for “judder”, you’ll find some more info, but let it be known that the problem cannot be solved by motion blur or frame blending. It can only be solved by a higher frame rate, which is rarely an option, since we’re usually stuck to 24/25/29.97 or 15 for Flash. You can make it look smoother by going interlaced, but that may not be the look you like. Adding motion blur just means you see still images with blurry edges. 🙂
I believe it’s an optical/mental issue: because the movement is in a straight line at a medium pace, and the objects do not change shape, it is easy for our brain to actually see the still images — in other words, “persistence of vision” breaks down. If you’ve ever seen a slow-to-medium pan in a movie theatre, you’ve seen this juddery effect.
The only way to improve it is to go interlaced, or distract the viewer with other motions within the frame. Or you could just accept it, since most lay people don’t notice it, and Hollywood doesn’t seem to care, since you can see examples in Inside Man and, if I recall, Casino Royale.
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Yupp, just like Steve said – too much slow movement of large uniformly colored areas will always look odd due to the way our eyes perceive it. You’d have to use faster speeds or completely “destroy” your image using tools such as ReelSmart MotionBlur. By creating smeary vector based blur, you stretch out the offending areas that they seem to melt into one another from frame to frame. Of course you loose al lvisual detail, so it’s not always an option to work dirty. ;O)
Mylenium
[Pour Myl
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Excellent thanks
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excellent thanks both of you
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