Forum Replies Created

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  • Tero Ahlfors

    January 10, 2012 at 8:30 am in reply to: Offsetting the video while not moving the mask

    Precomping still moves the mask around.

  • Tero Ahlfors

    January 10, 2012 at 6:22 am in reply to: Offsetting the video while not moving the mask

    I don’t want to offset the time, just the position. Precomping sounds like a solution though it’s not as WYSIWYG I’d like. I’ll try that out when I can. Thanks.

  • If the area isn’t completely clipped you might try to make an adjustment layer with the proper color settings and roto it out manually.

  • Tero Ahlfors

    January 10, 2012 at 4:15 am in reply to: How do I Erase a Reflection?

    Can you see in the car? If not you could get away by making a clean plate of the window and tracking it in place. If the reflection goes over an actor that’s inside the car you’ll be painting.

  • Tero Ahlfors

    January 6, 2012 at 6:27 pm in reply to: Can’t get tracks laid out logically

    You can also right click the file in the project panel and pick modify -> audio channels to map the mono tracks into stereo if you want. Note that you can’t modify the audio channels if the file is already cut in to a timeline.

  • Tero Ahlfors

    January 6, 2012 at 3:47 pm in reply to: Can’t get tracks laid out logically

    Note that the audio tracks 1-3 are stereo. They wont take mono audio.

  • Tero Ahlfors

    January 6, 2012 at 10:53 am in reply to: PrPro CS5.5 RT performance

    ATI cards do not support CUDA so you can’t use the Mercury Playback Engine on Premiere.

  • Tero Ahlfors

    January 4, 2012 at 7:53 am in reply to: whats with the speed of after effects?

    Mark,

    I work with some insanely expensive, high-end hardware/software (iQ, Smoke, Flame) they are as slow and sometimes even slower than AE. Compositing footage or animating ot making VFX for movies takes a lot of time. It all depends on the footage, effects, lights, 3D, your RAM, CPU etc. If you can’t load the entire preview in RAM you should lower the preview quality or make the work area shorter (B in, N out), or maybe render out a file preview.

    Realtime compositing isn’t here yet.

  • Tero Ahlfors

    January 3, 2012 at 8:34 am in reply to: whats with the speed of after effects?

    This little quote has been in a bunch of threads in here and it’ll explain how compositing softwares work.

    “Sony Vegas, Premiere Pro, Final Cut, Avid are all NLE’s (Non Linear Editors) and they are specifically designed to playback a video stream. With any of them, if you stack enough layers or effects on the video they will have to render a new video stream based on pixel based calculations for every pixel in the stack. This rendering, especially for HD sources or for complex plug-ins, will take quite a bit of time.

    After Effects, Flame, Fusion, Shake — are all pixel based image processing applications that act very much like Photoshop. They calculate the values of every pixel in every frame, come up with a new pixel, and then play those pixels back as a video stream. More importantly, AE and all the other pixel based compositing apps, always work internally with completely uncompressed pixel data. NLE’s rely on codecs and in some cases, hardware, to playback the video. It’s an entirely different way of working with moving images.

    In After Effects you enable the preview by loading a bunch of frames into RAM then the video stream is played back. You start the process with the 0 key on the numeric keypad and not with the Space Bar as you do in nearly every NLE ever created. The length of the preview depends entirely on how much free ram you have available and it takes some time to generate these new pixels. The more layers, the more effects, the more calculations that need to be performed the longer it will take to process the RAM preview. There’s currently no way around this rendering time. A modern NLE will handle an amazing number of video streams simultaneously, but as soon as you exceed the capability of the system you’re stuck with a render. Most NLE’s, given the same number of calculations, actually take a little longer than After Effects to do the same kind of effects. Open GL, and other GPU acceleration helps many NLE’s achieve higher performance but it has yet to be implemented into a pixel based compositing app. The sad truth of the matter is that if you want to do compositing in any of the available compositing apps, you have to wait for renders. They are getting better. Memory management and efficiency is improving. GPU accelerated effects are being added, but for now, that’s about as good as it gets.

    I hope this helps. As long as you use After Effects to create shots and don’t try to make it do the work of a NLE you should be fine. Movies come from NLE’s, amazing shots come from AE.

    – Rick Gerard”

  • Tero Ahlfors

    January 1, 2012 at 9:56 am in reply to: What do you mean by Fast?

    [Lance Bachelder] “How about 5 stacked Color Corrections including 2 masks and topped off with a mild Sharpen filter – all with no choking on 1080p footage – similar to Mercury playback in PPro but no special card required! And the results are just crazy good – as good and faster than using Color, which I loved.”

    I just made a little test on Premiere. I set up 15 simultaneous tracks with 1080P footage shot on a Canon 5D mk II on top of each other. I put a different color corrector, mask, sharpen plugin and gaussian blur on each. Then I pressed play and what do you know. All ran in lovely real-time and here’s the kicker: I don’t even have a “special card”. I have a CUDA enabled GTX 260 that I can tell Premiere to use even it is not officially supported.

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