How To Avoid Flickering

[nutriman]

probably an antialiasing and/ or texture interpolation thing. can you post it?

[BigAl3D]

Thanks for the reply, but I think you'll see what I mean by viewing my images. I Posted these two stills to better illustrate my issue.

http://www.koonsmarketing.com/c4d


See what I mean? If I just render at 4 sec. @ 30 fps, the whole clip looks bad. This is the best I've gotten it to look. Do I need more motion blur, or a different way of rendering? I'm at a loss.

-Alex

[sismik]

Hi BigAl

Your problem is not flickering, it's a field problem. You can get very unregular (kind of choppy) motion with accentuate horizontal motion on television. You need to render your final project with field (interlaced) because broadcast TV display fields and not frames.

What I suggest to you, dont render with field in C4D even if you have the option. I had some weird experience doing so. I usually render without any field at 30 fps (you can do it at 60 fps too). I import my image sequence in After-Effects and I interpret the footage (cmd-f) at 29.97 fps. Finally, I render my final output at 29.97, lower field first (it depend on the way the editing system works but usually it's lower field first).

Hope this help and sorry for my english

Martin

[Simon Wicker]

you need to render with scene motion blur and not use fields.

cheers, simon w.

[rizon]

did you try reelsmart motionblur in post?
http://www.revisionfx.com/products/rsmb/

[gildattack]

i'm not sure, but couldn't it be because he is strechting the movie? Like when you do it in AE with frame blending 'on'?

[egselent]

maybe you've thought of this - but it looks to me like you're rendering at one frame rate (30 fps) and playing it back on another. are you sure yourplayback settings in final cut aren't set to 25 fps or seomthing. that would cause that slight lag.

[BigAl3D]

Thanks for all the tips. I've tried many different things and still not happy. I realize this may also be a Final Cut issue, but am trying not to double post. If anyone is feeling generous, and wants to download a 31 MB ZIP file containing this sequence rendered out to sequential Targa files (with alpha) so you can see for yourself, please feel free!

http://www.koonsmarketing.com/c4d/TruckPass1.zip

I still have several days to work on this, but I'm a little nervous. Thanks again.

[snakedogman]

Thanks for the reply, but I think you'll see what I mean by viewing my images. I Posted these two stills to better illustrate my issue.

http://www.koonsmarketing.com/c4d


See what I mean? If I just render at 4 sec. @ 30 fps, the whole clip looks bad. This is the best I've gotten it to look. Do I need more motion blur, or a different way of rendering? I'm at a loss.

-Alex

the ghosted edge in the 2nd pic looks more like frameblending in FCP as a result of the speed change. You might wanna try with frameblending switched off.

I've downloaded your tga sequence and the reason it looks kinda choppy on a tv monitor is because it's not interlaced. You need to render interlaced from Cinema 4D, or render at double the framerate and use After Effects to turn a 60 fps into a 30fps interlaced movie. (I personally have never tried this so I'm not quite sure how to do that). Speeding up in FCP isn't gonna give you the right results as it simply throws away half your frames rather than reinterlacing them into fields, resulting in the same choppy motion, only faster.

[sismik]

You can usually broadcast without having to interlace, you wont notice. Often, I interlace in After-Effects and it does the job. But in your case, after looking at your TGA sequence, you really need to render interlaced directly in C4D because the horizontal translation is really fast and it is accentuated.

[BigAl3D]

Thanks to everyone for chiming in on this issue. Turns out rendering with even fields out of C4D did the trick. Final Cut doesn't handle 60 fps to fields very well and I don't use After Effects. I'll post a link to the final spot when it's done!

--Alex



You can usually broadcast without having to interlace, you wont notice. Often, I interlace in After-Effects and it does the job. But in your case, after looking at your TGA sequence, you really need to render interlaced directly in C4D because the horizontal translation is really fast and it is accentuated.

[BigAl3D]

Here's the final spot. In this go around, I didn't have time to render the shadows in the last shot, but the trucks look good. The confetti is C4D as well.


30 MB Version
http://www.koonsmarketing.com/Alex/KET08301.mov


3.3 MB Version
http://www.koonsmarketing.com/ads/television/KET08301.wmv



Thanks to everyone for chiming in on this issue. Turns out rendering with even fields out of C4D did the trick. Final Cut doesn't handle 60 fps to fields very well and I don't use After Effects. I'll post a link to the final spot when it's done!

--Alex

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