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Adding the Star Glow effect to a layer

From: CINEMA 4D: Rendering Motion Graphics for After Effects

Video: Adding the Star Glow effect to a layer

The animation compositing process is really all about affecting your image from 3D using filters and effects inside of After Effects. Now in this movie, we're going to be using a very special third-party filter called Starglow to create glows within our 3D image. Before I get started, I want to have a 3D camera in my scene that's going to allow me to add 3D layers that will move around, matching my 3D render from After Effects. Now in each of my pre-comps I have got that 3D camera, so I'm going to go and grab the one that's inside the Stadium Pass. And if I go under to the Pre-COMP's folder, I'll go under the Stadium Pass PRE.

Adding the Star Glow effect to a layer

The animation compositing process is really all about affecting your image from 3D using filters and effects inside of After Effects. Now in this movie, we're going to be using a very special third-party filter called Starglow to create glows within our 3D image. Before I get started, I want to have a 3D camera in my scene that's going to allow me to add 3D layers that will move around, matching my 3D render from After Effects. Now in each of my pre-comps I have got that 3D camera, so I'm going to go and grab the one that's inside the Stadium Pass. And if I go under to the Pre-COMP's folder, I'll go under the Stadium Pass PRE.

I'm going to grab the Camera, the Platform Disc light. I'm holding down the Command key or the Ctrl key on the PC to select multiple items without selecting one in between. And I'm going to copy all three of these, Command+C or Ctrl+C, and I'm going to go back to my main composition and I'm going to paste these down. What that does, it looks like nothing has changed, but now I have this three information, so it means any 3D layers that I create in here, like a solid, for example, is going to move around inside the scene the same way it would if it had been in CINEMA 4D.

So now what I need to do is to add a Glow effect to just a base and I happen to have the Stadium Base Pre-COMP that we've created earlier, and I'm going to use that as the basis for that glow. So I'm going to bring that Stadium Base PRE into my composition and place it right above the Stadium Base. And now I'm going to use the Starglow effect, and I'm going to go to the Effect menu, to Trapcode and add Starglow. And it doesn't really look like much has happened, and the reason is when you first add it, it's based on the light and dark values in an image. And if the light and dark values aren't strong enough, you won't see the Starglow effect. And we're going to need to make some tweaks to the settings, but before we do, let's move to a point in time where we know we'll be able to see the glow results.

And so if I go to right around frame 26 or 27, I can see the top of the platform, and this is right around the point in time where the phone emerges from there, and this is where we want our glow to happen. You can see a little bit of the edge of the glow there. What I need to do is adjust something called the preprocess on the Starglow effect, and what that does is open the Starglow effect up, allowing it to affect more of the image underneath. So if I twirl open the Starglow > Pre-Process effect, and I go to the Threshold value and I bring the Threshold value down, you're going to see the glow expand across the surface of this platform. And as I do that, the platform starts to look like it's glowing.

Now, it's glowing with the wrong colors, but we can fix that really easy. The important thing to understand is what this threshold value is doing; it's expanding the range of values that the Starglow filter is allowed to affect. So as you can see, the glow is expanded across the surface, but it's really the wrong color glow. We want to have a much more fiery hot feel to our image, with lots of oranges and reds. And so what I'm going to do is change something called the Colormap. And so as I twirl open the Colormap A down here in these options, if I click and hold on this pulldown, there is some presets here.

I'm going to select Fire. That changes how the glow looks, and I'm going to do that. There are two different colormaps, and I'm going to change them both to be Fire. There we go. And so now I can see I've got this really nice hot glow. Now, the streaks are way too long right now. I'm going to dial those down a bit. And so if I go up into the Streak Length option, and I'm going to drag that down, dial it down here, right around maybe somewhere between five and seven. And this is one of those sort of season- to-taste moments that you always see on cooking shows. And if I were really feeling spunky, I could go back to and crank this all the way up and have all kind crazy starry effects on there, but that's really not the style I'm going for.

I wanted it to be a little more subtle. So I want to bring it down into the roughly 7 or 8 range. So it looks like it's hot. It looks like it's illuminated. It's got a very slight glow on it. Now my glow is bleeding onto these vertical pillars, and I don't want that. The other thing that's happening is if I solo this layer out, you can see the glow is happening right on top of here. What I really want is just the glow; I don't see the base platform. And there is a cool feature inside of the Starglow effect at the very bottom called Source Opacity. If I dial the Source Opacity down to zero, I'm left with just the glow, and I don't see the Stadium Base layer anymore.

Now when un-solo my layer, I see the glow on top of the original image, but I don't see anything else except for the glow and the original image. So as you can see, the Starglow effect is a really powerful tool, and it makes a beautiful glow based on the light and dark values of our image. And this is really the first part in this process that we're going to use to create a spectacular-looking motion graphics piece.

Show transcript

This video is part of

Image for CINEMA 4D: Rendering Motion Graphics for After Effects
 
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  1. 5m 48s
    1. Welcome
      57s
    2. Using the exercise files
      50s
    3. Essential plug-ins
      4m 1s
  2. 51m 44s
    1. Essential render settings
      6m 24s
    2. Setting up an object buffer list
      6m 17s
    3. Creating object buffer tags
      10m 48s
    4. Setting up multi-pass image layers
      5m 37s
    5. Creating an external compositing tag
      1m 47s
    6. Creating render passes using the Render Elements plug-in
      9m 39s
    7. Using Render Elements to optimize render passes
      5m 12s
    8. Batch rendering
      6m 0s
  3. 31m 33s
    1. Importing files and organizing an After Effects project
      6m 58s
    2. Creating a 3D object precomp
      3m 15s
    3. Attaching a video layer to a 3D object
      8m 17s
    4. Compositing 3D text
      2m 47s
    5. Compositing a dynamic 3D background
      4m 23s
    6. Setting markers for major events
      5m 53s
  4. 39m 46s
    1. Adding the Star Glow effect to a layer
      4m 32s
    2. Creating a glow on the stadium background
      5m 56s
    3. Revealing the background glow using a 3D layer mask
      7m 19s
    4. Creating a glow using the Ambient Occlusion pass
      6m 9s
    5. Using the Ambient Occlusion glow to create an energy animation
      4m 25s
    6. Creating a stadium light effect using object buffers
      4m 38s
    7. Adding flash bulbs with the CC Light Rays effect
      6m 47s
  5. 53m 16s
    1. Creating the phone reveal
      5m 10s
    2. Creating the phone reveal glow
      7m 49s
    3. Creating the phone reveal beams
      7m 17s
    4. Colorizing the energy beams
      6m 21s
    5. Creating the energy burst
      10m 19s
    6. Using Trapcode Particular to add sparks to the phone reveal
      10m 53s
    7. Creating the phone screen video
      5m 27s
  6. 15m 37s
    1. Creating the type glows
      9m 36s
    2. Adding the type glint
      6m 1s
  7. 34m 33s
    1. Creating a camera shake effect using precomps
      8m 12s
    2. Adding depth of field with the Lens Blur effect
      8m 14s
    3. Transitioning to full-screen video
      8m 17s
    4. Using the ReelSmart Motion Blur effect
      4m 17s
    5. Putting together the final comp
      5m 33s
  8. 1m 25s
    1. Next Steps
      1m 25s

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