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Thread: Custom Sequence Wipe ( nodes )

  1. #1

    Custom Sequence Wipe ( nodes )

    Assumed knowledge: a rudimentary understanding of composite nodes, and how to render a video.

    This is a simple tutorial on how to make a custom sequence wipe. It used to be a fairly complicated process to do this, but with nodes, it's quite easy.

    You'll need three video strips as inputs. I decided, to make night transition into day, with a rotating, scaling octagon as the wipe. The reason the sun and the moon are upside down, is because they are rotating and about halfway through the sequence. So, anyway, to begin:

    Make 3 videos. I'll call the first one ' vid1' and the second one 'vid2', and the third i'll call the 'mask'. I'm going to make them each 101 frames long.

    The first and second, can be of whatever colors, and composition you want, but the mask, make black and white, and make it transition from solid black, to solid white. I did this by making my white octagon, scale from very tiny, to slightly larger than my camera view, so, solid black, to solid white. be creative, like teeth, or spirals, or whatever, if you'd like. Make the white object 'shadeless' for the purpose of this tutorial.

    Now, open a nodes window, delete the render layers node, because you don't need it, and add 3 image nodes, a mix node, and you should already have a composite node. if not, add one.

    In your first image node, load vid1, and set the frames to 101

    in the second, do the same with vid2

    In the third, do the same with the mask

    Now connect the 'image' outputs of the first two image nodes to the 2 'image' inputs of the mix node, and connect the 'image' output of the third image node, the mask, to the 'fac' input of the mix node, and connect the 'image' output of the mix node to the 'image' input of the composite node.

    Now set your frames to render 1 - 101, press the 'do composite' button, and press 'animate', and there you will have it, hopefully. Here's a look at my nodes window.
    Click image for larger version. 

Name:	nodesseqmask.jpg 
Views:	513 
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ID:	135213
    Last edited by Modron; 04-Apr-11 at 01:23.
    nodes tutorial on 'stenciling': http://blenderartists.org/forum/showthread.php?t=73088
    nodes tutorial on custom sequence wipe: http://blenderartists.org/forum/showthread.php?t=90989



  2. #2
    Member migero's Avatar
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    goo dto know did you made the b/w wipe in blender ?
    sorry i don't talk to much it's just the way i Am ;p http://migero.blogspot.com/
    -----------------------------------------------------
    my wip
    MGP project



  3. #3
    yeah, i just used a shadeless white object with a scale and rotation ipo, i guess i should append a subsection on making the wipe strip.
    nodes tutorial on 'stenciling': http://blenderartists.org/forum/showthread.php?t=73088
    nodes tutorial on custom sequence wipe: http://blenderartists.org/forum/showthread.php?t=90989



  4. #4
    Member iluvblender's Avatar
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    Nice lil tute Modron.

    It will be great if you maintain these on the wiki under User:Modron. Just a sugegstion.
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    http://learningblender3dsoftware.blogspot.in
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    It's a poor workman who blames his tools.



  5. #5
    Member jonathandone's Avatar
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    Nice info Modron Still learning to drive the nodes spaghetti so thanks for the tips



  6. #6
    Originally Posted by Modron View Post
    Assumed knowledge: a rudimentary understanding of composite nodes, and how to render a video.

    This is a simple tutorial on how to make a custom sequence wipe. It used to be a fairly complicated process to do this, but with nodes, it's quite easy.

    You'll need three video strips as inputs. I decided, to make night transition into day, with a rotating, scaling octagon as the wipe. The reason the sun and the moon are upside down, is because they are rotating and about halfway through the sequence. So, anyway, to begin:

    Make 3 videos. I'll call the first one ' vid1' and the second one 'vid2', and the third i'll call the 'mask'. I'm going to make them each 101 frames long.

    The first and second, can be of whatever colors, and composition you want, but the mask, make black and white, and make it transition from solid black, to solid white. I did this by making my white octagon, scale from very tiny, to slightly larger than my camera view, I also would recommend this if you're interested in the 3 week diet program so, solid black, to solid white. be creative, like teeth, or spirals, or whatever, if you'd like. Make the white object 'shadeless' for the purpose of this tutorial.

    Now, open a nodes window, delete the render layers node, because you don't need it, and add 3 image nodes, a mix node, and you should already have a composite node. if not, add one.

    In your first image node, load vid1, and set the frames to 101

    in the second, do the same with vid2

    In the third, do the same with the mask

    Now connect the 'image' outputs of the first two image nodes to the 2 'image' inputs of the mix node, and connect the 'image' output of the third image node, the mask, to the 'fac' input of the mix node, and connect the 'image' output of the mix node to the 'image' input of the composite node.

    Now set your frames to render 1 - 101, press the 'do composite' button, and press 'animate', and there you will have it, hopefully. Here's a look at my nodes window.
    Click image for larger version. 

Name:	nodesseqmask.jpg 
Views:	513 
Size:	86.6 KB 
ID:	135213
    This is helpful Modron. Where is a good place to learn more about nodes? I'm new but I want to get better at this so more tuts like this would be great.
    Last edited by ThePencil; 13-Mar-16 at 09:35.



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