aristocratic3d Posted October 16, 2012 Share Posted October 16, 2012 Hello, I have done an animation for a client. it was quick and simple. but you see that the animation is not smooth. it vibrates while panning the camera. this is what I called shuttering effect! Here is the video- https://vimeo.com/51423301 Thanks for your help Abdullah Link to comment Share on other sites More sharing options...
Ismael Posted October 16, 2012 Share Posted October 16, 2012 Maybe something useful here: http://www.workshop.mintviz.com/tutorials/flicker-free-animation-using-vray/ http://www.spot3d.com/vray/help/150SP1/tutorials_imap2.htm Link to comment Share on other sites More sharing options...
maxgooday Posted October 16, 2012 Share Posted October 16, 2012 Could be to do with your frame rate? Is it rendered out at 25fps and then exported at this as well? If they don't match then you get problems like this! Link to comment Share on other sites More sharing options...
Stephen Thomas Posted October 16, 2012 Share Posted October 16, 2012 This can also happen during the export from your video editing software. To minimise this you want to be using a constant bit rate rather than variable. Variable can allow the bit rate to spike quite high during high-motion scenes (like pans) and the computer can't handle it for playback. Link to comment Share on other sites More sharing options...
maxgooday Posted October 16, 2012 Share Posted October 16, 2012 Good call - how to change the bitrate so that it's constant (using After Effects)? Link to comment Share on other sites More sharing options...
Stephen Thomas Posted October 16, 2012 Share Posted October 16, 2012 What video file format are you outputting? If you click on the output settings from within the render queue, it should be under "format options". Will either say "constant" or "CBR" depending on the file type you're using. Link to comment Share on other sites More sharing options...
BrianKitts Posted October 16, 2012 Share Posted October 16, 2012 This has nothing to do with export or render settings, it's actually the camera setup and lack of motion blur. Export a still from any video camera moving sequence during a turn and you will see that everything gets blurred. (test it even with a camera phone for video) Turn motion blur on, although it will blur a still frame when looked at as a moving animation all will look smooth, and when you aren't moving fast everything will be crisp. Look up shooting video with a DSLR and you'll find that most shoot video with a shutter speed around 1/40th of a second. So first task is making sure that your physical camera settings are real world scenario or close. I actually find that to be a bit too much so I stray more towards 1/60th. Use the ISO to balance out your lighting levels, or Fstop if you aren't baking in DOF. (hint want to look more real....all cameras shoot with DOF shouldn't you?) to get a smooth animation with no motion blur turned on, you would need to render at an excessively high frame rate, not worth the rendertime. As a crutch you could throw your final product through aftereffects, and use the timewarp effect with motion set to 100 and enable motionblur. It does a pretty good job reading your before and after frames to measure pixel motion and give a pretty realistic post production motion blur. all these kill your render time so make sure you have optimized as much as you can with materials and lighting but the fact is that if you want it to look right, you've got to do it right. Link to comment Share on other sites More sharing options...
John Dollus Posted October 16, 2012 Share Posted October 16, 2012 too much ground to cover and not enough frames. What Brian said though I'd throw in there another possible solution - render out a motion vector pass in your render elements and apply the motion blur in After Effects using ReelSmart motion blur from Re:vision. Its quite the nifty utility and well worth the $150 (need the Pro version to use motion vectors). It's not as perfect as rendering the blur in camera but it can handle your issue Link to comment Share on other sites More sharing options...
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