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  • Perspective and size of model in composite

    Hi

    I have made a rough cut out of my model and made a quick shadow and colour matching. I am struggling on how large I should make her in the composite. Can you help me find a good size of the model and explain how I should think in order to get a realistic size of the model in the composite?

    If you want to give it a go here is the backgound and the model:

    http://wip.psportraitphoto.com/#!album-3

    Thanks

    Peter
    Attached Files

  • #2
    Re: Perspective and size of model in composite

    A very quick play.

    First define your horizon. In this case not visible but where leading lines (green) cross establishes the height, horizon shown in red.

    You, the viewer will always be looking at the horizon at eye level, standing or even lying down.

    So your subject if at the same height as you will also have their eyes at horizon level. Or, if smaller below or taller above horizon line.

    So as it looks like the model shot from approximately eye height (camera height at her eye level) I have placed several samples (forgive the masking and no shadow ) to serve as an illustration of one way to tackle the size relative to position on bridge
    Attached Files

    Comment


    • #3
      Re: Perspective and size of model in composite

      Thanks for good points. Is there any difference for the rule about eyes at horizon if someone is standing up or as in this case kneeling?

      Comment


      • #4
        Re: Perspective and size of model in composite

        The horizon line is always at the eye level of the viewer (in this case viewer eye = camera height).

        If the viewpoint is from crouching/sitting then the horizon will be shown at that height and is only relevant for subjects at that height. Therefore a standing adult eye line would fall above the horizon (depending on how tall) and a child's eye line may fall on or below the horizon depending on their height

        Once the horizon line established by leading lines you should try and establish a vertical height for reference. In this case maybe the bridge guard rail height -once known then this used to scale vertically figure height - again leading lines can be used to allow scaling of figures at differing distance. Perhaps in this case I have underestimated the height of the guard rail, but you should get an idea at least and adjust height of figure accordingly ?
        Attached Files

        Comment


        • #5
          Re: Perspective and size of model in composite

          She's lit front and back, yet casting only one shadow. Think about it.

          Comment


          • #6
            Re: Perspective and size of model in composite

            Originally posted by Tony W View Post
            The horizon line is always at the eye level of the viewer (in this case viewer eye = camera height).

            If the viewpoint is from crouching/sitting then the horizon will be shown at that height and is only relevant for subjects at that height. Therefore a standing adult eye line would fall above the horizon (depending on how tall) and a child's eye line may fall on or below the horizon depending on their height

            Once the horizon line established by leading lines you should try and establish a vertical height for reference. In this case maybe the bridge guard rail height -once known then this used to scale vertically figure height - again leading lines can be used to allow scaling of figures at differing distance. Perhaps in this case I have underestimated the height of the guard rail, but you should get an idea at least and adjust height of figure accordingly ?
            Great pointers, thanks.

            Comment


            • #7
              Re: Perspective and size of model in composite

              Originally posted by Profesh View Post
              She's lit front and back, yet casting only one shadow. Think about it.
              Would you add another shadow from the front light? If so would it be different from the current in terms of luminocity or blurriness?

              Comment

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