rendering problem

B

Burn2Earn pro.

Well-known member
I have rendered a 12 min. Film out of AE, my settings are for mpeg2 dvd when I gointo encore and make a dvd, my dvd is slow at some points and then goes into normal speed ....there is also no sound and everything is checked. No motion blurs or frame blending is checked....please. any advice would be helpful
 
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From my experiences, maybe someone can advice you better:

I prefer render the movie in Quicktime format in normal ProRes compression, later in Encore import this Quicktime and leave the Encore make the transcoding, maybe in the MPeg2 file from after effect has a too high Bit rate; when you are authoring a DVD you must input a Average and Maximun Bit rate settings (6mbps for Average and 8mbps for the Maximum is normal) this is for assure maximum compatibility with al DVD players, too high Bit rate can make slow playback and no playback at all in some DVD players.

Cheers
 
xenogears said:
From my experiences, maybe someone can advice you better:

I prefer render the movie in Quicktime format in normal ProRes compression, later in Encore import this Quicktime and leave the Encore make the transcoding, maybe in the MPeg2 file from after effect has a too high Bit rate; when you are authoring a DVD you must input a Average and Maximun Bit rate settings (6mbps for Average and 8mbps for the Maximum is normal) this is for assure maximum compatibility with al DVD players, too high Bit rate can make slow playback and no playback at all in some DVD players.

Cheers
Click to expand...

Thank you for responding, I tried rendering in QuickTime last night so ill check it when I get home.I hope it worked it has been really frustrating. Idk if it is b/c my footage is being imported at 30 fps and my comp is 23.976 and it is rendering out badly ..... so confused!!
 
The film does play better in quicktime format , but now I have this jumping going on at the bottom and top of the frame. It's pretty distracting to watch.... Is there a reason why this is going on , did I forget to turn something on or off?


Its always something I feel like :(
 
I really don´t understand you very well about the jumping, is like the vain of the video (vain: ugly black borders from video recorded).

What are your composition Dimensions? are the same as the rendered movie?

A DVD must be 720x480 Ntsc and 720 x 576 PAL, your Pixel aspect ratio must match in After Effects your rendered movie and Encore, i normally use Square pixels.

Your source material is 30fps (or 29.97fps) and you´re rendering at 23.97fps? if is so, render the movie at 29.97fps, but probably this is not the cause.

Cheers
 
My comp dimensions are the same as my rendered movie , they are all set up for 720x480 dvd format my pixel aspect ratio is 3:2... or DV NTSC(0.9) also I think I shot in a 16:9 format , but I don't think that would have anything to do with the vain. Yes the vain was what I was talking about earlier , it is making the picture look like it is constantly bouncing.

I did realize the fact this morning that I was rendering from an external Hard drive which had maybe messed with the picture when it was being rendered onto the computer. I'm taking the project off the external and putting it my desktop now.... I'll let you know if that changes anything.... I checked out the two links postmaster sent me , they were good. I can try and do a little of what they were suggesting and see how that looks.... thanks a lot for your advice.
 
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Burn2Earn pro. said:
Thank you for responding, I tried rendering in QuickTime last night so ill check it when I get home.I hope it worked it has been really frustrating. Idk if it is b/c my footage is being imported at 30 fps and my comp is 23.976 and it is rendering out badly ..... so confused!!
Click to expand...

There are many different parameters to think about...

What was your original footage shot at?
Popular options for Standard Defnition are, 60i (NTSC DV 4:3), 60i (NTSC DV Widescreen (16:9)), 24p or 24pa telecined to DV 60i. Occasionally one may see 30p or the like... (I don't do PAL, but there are the equivalents there as well...)

If you have shot in 24p or 24pa mode, has AE correctly interpreted the field dominance and cadence correctly. While it has some pretty good 'guessing' that automagically figures things
out, sometimes it doesn't do so well.

As for rendering. The 'usual' advice is to maintain the highest amount of data till the last moment. That means out of AE 'render' to the 'animation' codec. This is a lossless codec. You can use Adobe Media Encoder to render to MPeg2, and then tell Encore to not render... but it's just simpler to explain... render from AE to Animation, then take in the Animation render into Encore.

In Encore select bit rates that are appropriate for DVD. which is absolutely under 8mbs for the video. 9.8mbs is the DVD standard maximum. Typically for SD media, 6 mbs is sufficient.

It is the codec that is important in rendering, not the 'container', which QT MOV is. Selecting a lossy codec, such as Mpeg2, or H.264, or even DV, for this intermediate render, will allow loss to occur. Better to let Encore make the final 'lossy' encoding, and use lossless for the AE output.
 
Burn2Earn pro. said:
My comp dimensions are the same as my rendered movie , they are all set up for 720x480 dvd format my pixel aspect ratio is 3:2... or DV NTSC(0.9) also I think I shot in a 16:9 format , but I don't think that would have anything to do with the vain. Yes the vain was what I was talking about earlier , it is making the picture look like it is constantly bouncing.

I did realize the fact this morning that I was rendering from an external Hard drive which had maybe messed with the picture when it was being rendered onto the computer. I'm taking the project off the external and putting it my desktop now.... I'll let you know if that changes anything.... I checked out the two links postmaster sent me , they were good. I can try and do a little of what they were suggesting and see how that looks.... thanks a lot for your advice.
Click to expand...

For rendering the speed of the harddrive has no impact on the final output frame rate. It would only be in 'play back', or in the case of writting to a DVD, keeping up with the required data rate of the DVD write capability.

Most Harddisks these days can keep up with the DVD writer.

But since we don't know what hardware you are using... there could be performance issues in how you have your media placed on which disk, and writing to the DVD.
 
Thanks for answering j1clark, i agree with you on the external hard drive it should be ok to use, I think the problem might be that my computer is to old and out of date to be doing this with. I have an hp media center running xp from 2002 I updated the graphics card and ram but only have 3 gb of ram, I don't think the ram and even the bits can keep up with running all the premier projects I have .. I think a new updated system could be the key to solving this rendering problem
 
Burn2Earn pro. said:
Thanks for answering j1clark, i agree with you on the external hard drive it should be ok to use, I think the problem might be that my computer is to old and out of date to be doing this with. I have an hp media center running xp from 2002 I updated the graphics card and ram but only have 3 gb of ram, I don't think the ram and even the bits can keep up with running all the premier projects I have .. I think a new updated system could be the key to solving this rendering problem
Click to expand...

Well... I would recommend coming into the modern age on the hardware side... however, it may impact your ability to take long coffee breaks...
 
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