Forum Replies Created

Page 36 of 58
  • Andrew Kramer

    March 7, 2006 at 3:14 am in reply to: What’s a node?

    Nice Adolfo, you beat me.
    lol
    Andrew

  • Andrew Kramer

    March 7, 2006 at 3:14 am in reply to: What’s a node?

    Nice Adolfo, you beat me.
    lol
    Andrew

  • Andrew Kramer

    March 7, 2006 at 3:13 am in reply to: What’s a node?

    Think about a node as a machine. You put video through this machine and the machine changes it somehow.

    Say I have a Color correction node (machine).

    I put my video inside of the machine (node) and out comes the video with color correction. Say I have a green screen Node. The video goes into the machine and out comes the video with the green removed.

    Now, when I set up the node tree I would run the my footage through the color correction node machine, then put it to the green screen node machine, then through another color correction node to enhance it further. Remember each Machine can be given unique settings.

    Nodes are great for following the flow or structure of an effect with a single view of the node tree. (node tree the diagram of flow of the nodes. in this case you would see the initial color correction as one node and the outgoing video would link to the green screen node and so on until the render node etc.

    In after effects it’s a little differn’t but similar in functionality for example when i add levels to a layer, then color key, then another color correction. It processes the effects in the order they are applied like would take place in a node tree.

    Hope this helps.

  • Andrew Kramer

    March 7, 2006 at 3:13 am in reply to: What’s a node?

    Think about a node as a machine. You put video through this machine and the machine changes it somehow.

    Say I have a Color correction node (machine).

    I put my video inside of the machine (node) and out comes the video with color correction. Say I have a green screen Node. The video goes into the machine and out comes the video with the green removed.

    Now, when I set up the node tree I would run the my footage through the color correction node machine, then put it to the green screen node machine, then through another color correction node to enhance it further. Remember each Machine can be given unique settings.

    Nodes are great for following the flow or structure of an effect with a single view of the node tree. (node tree the diagram of flow of the nodes. in this case you would see the initial color correction as one node and the outgoing video would link to the green screen node and so on until the render node etc.

    In after effects it’s a little differn’t but similar in functionality for example when i add levels to a layer, then color key, then another color correction. It processes the effects in the order they are applied like would take place in a node tree.

    Hope this helps.

  • Artifacting meaning undesired side effects of deinterlacing and excessive chromatic noise beyond that which is expected from HDV.

    Now, on say an LCD display if I were looking at a full frame of 1080i, I would see 2 fields, the HDV compression in this frame would be what is expected when viewed unaffected pixel for pixel or as a full frame. (“properly” may not be the best term – Perhaps the frame as a whole)

    Interlace artifacting is a fact, weather the footage is HD 4:4:4 or HDV 4:2:0. However when interpolating (deinterlacing) an image with already less than perfect chroma sampling, the results arn’t going to improve.

  • “In this case 4:2:0 Which will certainly cause some interlace artifacting. ”

    Meaning when de-interlaced. As per the context of the original post.

  • There is no artifacting when viewed properly (without doubling or interpolating) but you better believe it’s there if you deinterlace without a high quality method.

  • Andrew Kramer

    March 4, 2006 at 2:38 pm in reply to: Zena HS and firewire card on same computer.

    I have the LS with no problems. It uses a differn’t control so it shouldn’t conflict because they wouldn’t be accessed at the same time.

    Andrew

  • I’m not sure I follow exactly but generally A camera’s CCD captures the image uncompressed, (perfect luma and chroma) then the recording format compresses the signal for the medium. In this case 4:2:0 Which will certainly cause some interlace artifacting.

  • Andrew Kramer

    March 4, 2006 at 1:08 am in reply to: Graphics Card that kicks ass

    If that doesn’t work look around for a 32 MB ati rage card.

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