Working with 3ds max 4.2 on Hirez project 24fps.

[3danim8d]

Chicoloma,

Hi, your project sounds cool. I have some questions about your problems.

Is the jerkiness due to the playback system? What are you playing back, frames, a quicktime stream, etc...?

Could the default key interpolation on teh camera's motion path be messed up so that they aren't smooth and that cuasing the jerkyness.

You could also try to render the sequence out through Video Post and use 'scene' motion blur and see if that helps your images.

Also, have you made sure that the HD you're pulling the HD stream off of is defraged and can maintain the necessary bandwidth for HD over the entire space of the drive?

Can you post some stills show what you are having problem with?

I hope some of this may have helped.


Jeff

[JayCMiller]

does HD use fields? & the size of motion blur does matter. fatster motion = more blur.

[3danim8d]

HD is progressive scan as far as I know, so NO Fields. If you are rendering fields that could be your problem.

As for the motion blur, there are ways to calculate the gate (exposure time) of your physical camera and then you can match those settings in Max so your 3D stuff and your filmed stuff mesh together well.

I would run these renders through the VideoPost app as it's motion blur blending is really good.


Good luck


Jeff

[chicolima]

Hi guys,

We're rendering in Frames in 3ds max and the project is set to 24 fps.

We importing the frames to a Inferno Onyx2 which can playback HDTV in realtime without dropping frames.

I think that it could be the key interpolation on the camera.

In this particular scene everything is 3D.

Thanks for your help Jeff.

[RiotManZ]

If you cant find a solution here, try:
www.creativecow.net
there are some real cracks around...

[halo]

is it jerky or flickering?

if its jerky then look to your camera path or whatevers moving....or look carefully at the frames, is the camera moving evenly between them? jerky frames can be down frame rate incompatability where the computer "makes up" a frame now and then to keep in time...ie like trying to go from 24 fps to 25 fps every 25th frame can be a dupe of frame 24 if not done correctly....this may occur if your editing app doesnt support 23.98 fps or if max doesnt....check that first

if its flicker it could be because there is no information inbetween the frames....u could try 2d image motion blur on the camera in max, but the last time i looked it was a little dicky...but a better renderer may do a better job or a 2d video editing app may also achieve this

"bullet time" images captured by camera suffer this problem as well, but all i know is they spend a lot of time blending between frames to clean up the motion...stop frame animation also suffers from this.

what could work is to render at 48fps and downsample the frame rate afterwards, with the aim to collect the inbetween frame on the images so it looks blurred

[CGTalk Moderation]

This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.