3d video renders

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3d video renders // New Users

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Post by birvin // May 9, 2009, 7:05am

birvin
Total Posts: 6
ok i know we can render scenes to images but how do people render videos using truespace i know they have to have a plugin anyone know where i can get one?

Post by v3rd3 // May 9, 2009, 12:16pm

v3rd3
Total Posts: 388
The workspace side animations are created as a series of stills which need to be combined into the video format of your choosing. There are many freeware/opensource tools available to undertake this task.


The modelside creates animations in a variety of video formats. This is part of the file creation dialogue.


My suggestion, if you are using the model side, is to render your animation without any compression (codecs). Following the render use a video editing package to read the uncompressed avi and create your compressed render from there. Some of the renders I have done through a codec have artifacts and distortion beyond comprehension.


The manual has the key "how to" information for both workspace and model environments.


If you have any further questions on the process please post here and we will do our best to help you.

Post by Jack Edwards // May 9, 2009, 2:35pm

Jack Edwards
Total Posts: 4062
pic
I agree, you always want to render to sequentially numbered stills. You can use a lossless compression (PNG) that way and if you need to redo a part of the animation you only need to re-render the affected stills.

I recommend Sony Vegas for video editing:
http://www.sonycreativesoftware.com/products/vegasfamily.asp

Post by birvin // May 9, 2009, 6:40pm

birvin
Total Posts: 6
ok after looking araound again i found render to avi. now doing renderedd videos should i take into consideration poly count or does it mattter?

Post by v3rd3 // May 10, 2009, 5:38am

v3rd3
Total Posts: 388
High polygon scenes take longer to render than low polygon scenes. It is strictly a matter of the number of calculations you add to the render equation to get the job done....


The finer the detail you put into a render request the longer it will take to run as well. If you have a higher degree of anti-aliasing turned on ... etc.

Post by TomG // May 10, 2009, 12:38pm

TomG
Total Posts: 3397
Poly count will only affect render time. Of course adding 1 minute to a frame for a 600 frame animation is an extra 10 hours, so if that's an issue, then yes keep poly count in mind.


Once you are in AVI format though, it's just a 2D format, and doesn't care whether the 2D image came from a scene with 10 polys or 10 million polys.


Note that rendering to image sequence and turning into AVI later is recommended. Comes up many times in the forum :)


1. You get a crash or a power cut at frame 999 out of 1,000 - your AVI is ruined and you have to start the 20 hour render again from the beginning. WIth image sequence, just render that 1 last frame and you are done.


2. You play your video and you find the codec has compressed it too much. Now redo your 20 hour render. Or with image sequences, just redo the compression step, no need to re-render.


3. You need to change the animation between frames 50 and 100. Image stills, just re-render those, recompile the video. Image sequence, either rerender the whole thing, or render those files to video and try and accurately splice out the section in a video editing package to drop in that new version. I find the first easier :)


4. You can't tie up your computer for 20 hours straight. Image sequences its easier to render them in batches, you still end up with the same product whether your render all at once or separately.


etc.


HTH!

Tom
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