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  • Greetings, filmmakers! I'm Simon Jones from HitFilm.com, here with an extended look at

  • the portal effects from Ryan Connolly's film PORTAL COMBAT. If you want to know how

  • the Dimension Rift effect works in HitFilm, you've come to the right place. If visual

  • effects and compositing is all-new to you, don't worry - this is a great effect to

  • start with. Here's the shot we'll be looking at . In

  • PORTAL COMBAT, we created complex portal designs but we'll start off by using the standard

  • portal created by HitFilm's dimension rift effect.

  • First up, make sure you've downloaded the project files. There's an info card on this

  • video which links right to them, or you'll find them on the HitFilm website or in the

  • YouTube description. Once you've downloaded and unzipped those

  • files, open the project file inside HitFilm. In the Media panel you'll find everything

  • you need, Open up the Composite Shots folder and you'll find three composite shots. Double

  • click the 'Portal shot' composite shot to open its timeline.

  • If you've already done some editing in HitFilm, you'll immediately notice that composite

  • shots are somewhat different. Whereas editing is all about creating a sequence of clips

  • one after another, compositing is about creating a stack of layers. By combining layers in

  • interesting ways you build up a cool visual effects shot. That's the essence of compositing

  • right there. So the interface layout I'm currently using

  • is designed primarily for editing. This seems like a good time to introduce the Workspaces.

  • On Windows you'll see this icon up top. On Mac you need to go to the View menu, then

  • Workspaces. There are several built-in layouts and you can make your own as well. For now,

  • select the Compositing layout. This reorganises all the panels to provide

  • a faster way of working when doing visual effects. Feel free to switch workspace and

  • re-arrange panels whenever you want, according to your preferences and screen size.

  • Feel free to explore the pre-made composite shots in the project at your leisure. But

  • right now, let's start over and build up the shot from scratch.

  • First we need to make a new composite shot. There's a bunch of different ways to do

  • this in HitFilm. What I'm going to do is find the 'Silo' video in the Media panel,

  • then choose Make Composite Shot from its menu. This opens up a window with the specification

  • of the new composite shot - you don't need to worry about any of this, because it's

  • all based on the Silo video. Hit OK and you'll be greeted with a brand new timeline containing

  • that video layer. Let's add our portal. It's time to explore

  • the most exciting panel in HitFilm: the Effects panel. Here's you'll find a library of

  • over 100 effects, all of which are highly customisable. Remember: 100 effects in your

  • library doesn't mean you can only do 100 things in HitFilm. You can combine all of

  • those effects in unique ways to design completely new visuals that we've never thought of.

  • Think of it like a toolbox - you might only have 30 tools, but you can use them to build

  • a house. You can browse through the folders, but an

  • easier way to find something if you know what it's called is to type into the search box.

  • In this case, type 'Rift'. The Dimension Rift effect is what we'll use for the portal.

  • Effects can be dragged from the Effects panel onto your timeline layers. So the obvious

  • thing to do is drag the effect onto the Silo video, right? Well, you can do that, but then

  • you don't have an easy way to position the effect in 3D.

  • Instead, I'll remove the effect from there and go to the New Layer menu down on the timeline.

  • This is where you can create special layers right inside HitFilm. Select the 'Plane'

  • option. Planes are simple coloured rectangles, but they're massively useful. Rename it

  • to 'Portal host' and hit 'OK'. Your screen's gone black, but don't panic

  • - that's because we just created a large black rectangle, which is now the top layer

  • on our timeline. Higher layers obscure lower layers. If you click and drag on it in the

  • Viewer you can move it around. Click the Undo button to put it back to its original position.

  • Drag that Dimension Rift effect from the Effects panel again, and this time drop it onto the

  • Portal host layer. In HitFilm, every layer can be fine tuned and customised. Clicking

  • the little triangle opens up the layer to show more controls. If you head over to the

  • Controls panel you'll find the controls there too.

  • OK, with the Portal host layer selected, go to Controls panel and open up the Effects

  • group by clicking the triangle. Inside you can see the Dimension Rift effect, and clicking

  • the triangle next to it shows the effect's controls.

  • Right at the top you'll see that 'Wall image' is set to 'none'. This means

  • that we're just seeing that black plane rectangle behind the portal effect. What we

  • want to do is see the side of the silo, so click the menu and select the Silo layer.

  • Now comes the clever bit. So far you've got a couple of 2D layers on the timeline.

  • It's time to explore HitFilm's 3D compositing capabilities. On the timeline you'll see

  • a chequered square on each layer. Clicking this reveals the dimensional options. Switch

  • the Portal host layer from 2D to 3D plane. You'll be asked if you want to add a 3D

  • camera. Without hesitation, Hit YES. OK, at first glance not much has changed,

  • other than funky green and red lines up in the Viewer. Open up the Transform controls

  • for the Portal host and you'll see that the position and rotation properties now have

  • three settings. These represent the X, Y and Z axes - width, height, and DEPTH.

  • Click and drag on the rotation (Y) wheel. As you do, watch the layer rotate in the Viewer.

  • You can now see that the dimension rift effect is actually rendering a 3D surface on the

  • portal. Pretty neat. OK, to get the effect on the correct angle

  • for the silo wall, the easiest thing to do is type in values directly. So click on the

  • Y value and type 14, then hit enter. Then for the Z rotation change it to 2.

  • The effect is too large currently. Adjust the Scale value to shrink it down. 62% works

  • pretty well. To move the effect into place, the most intuitive way is to use the controls

  • in the Viewer itself. So with the layer selected, you'll see three arrows. Clicking and dragging

  • on the Red one will move the portal horizontally. This looks super awesome, right until I play

  • the shot or move the playhead. Suddenly it becomes clear that the effect is staying in

  • the same place while the camera moves around behind it.

  • We need to get us some tracking. HitFilm comes with built-in feature tracking, which is perfect

  • for a shot like this. We need to track the Silo video, so back on

  • the timeline open up the Silo layer and look for the Tracks section. You should be able

  • to see a Plus icon. IF you can't see it, try dragging the divider between the layer

  • listing and the timeline to make more room. Clicking that Plus adds a new Track to the

  • layer. You'll also see that the Viewer has switched to the Layer view. The Layer view

  • is designed to show you ONLY the selected layer, without any other distractions. This

  • is really handy for tracking, when you just want to see the layer in its original form.

  • Right in the middle of the frame you'll see two boxes. This is your first tracking

  • marker! You use this to tell HitFIlm what you want to track. The orange box defines

  • the feature you're tracking, while the green box is the area in which HitFilm will search

  • for it on each frame. So on fast moving shots you're going to need a larger green search

  • box than on slower shots, right? This shot is great for tracking because there's

  • a lot of nicely defined detail. Click and drag one of the corners of the orange box

  • to enlarge it. Then drag inside the orange box to reposition it. There are lots of good

  • places to track, but I'm going to go for this corner here. Now, there's a lot of

  • wobbly movement in this shot. Using a single tracking point like this is great if the movement

  • is only horizontal or vertical, but we've also got some rotation. For HitFilm to work

  • that one you need to give it some additional data.

  • Soooo….in the Type menu, switch to Double Points. This adds a second tracking point.

  • The important thing to note is that this is still for the same track. HitFilm will compare

  • the data from both tracking points to figure out the rotation of the shot. I'll stick

  • this one a little way away, so that there's a separation of movement between the two.

  • OK, let's track forwards by clicking the play button up on the Track panel. This will

  • quickly go through the frames tracking those features.

  • It's now time to head back to that New Layer menu. This time select the 'Point' option.

  • This adds a point layer to the timeline. Point layers don't really do anything at first

  • - they're simply reference markers. But back in the Tracker - you might need to find

  • the Silo layer on the timeline and select the Tracker again - we can now go to the Layer

  • menu and selec that new point. Make sure Rotation is also selected, then

  • hit 'Apply'. This will take the tracked data and add it to the point layer. Up top,

  • click the Viewer tab to switch back to the main view. Then scroll up the timeline, find

  • the new point layer and select it. If you move through the timeline you'll see that

  • the point layer is perfectly attached to the movement.

  • The benefit of applying tracking data to a point layer is that you can then use that

  • point layer to control multiple other layers. Although we're not going to get that detailed

  • in this tutorial, it's a good habit to get into as it gives you lots of flexibility to

  • combine layers and effects together. What we do need to do is link our portal layer

  • to our tracked point layer. On the timeline every layer has a parent menu, which is initially

  • set to 'none'. Find the Portal host layer, open its parent layer and select the New point

  • layer. So the way it works is that a parent layer controls a child layer. It's that

  • whole parent-child thing. Everyone knows how that works, right?

  • Aaaand, our portal is now magically attached to the wall, and you know how to track - something

  • you'll use over and over again in all kinds of VFX shots.

  • Right now we have a disconnected portal. Select the portal layer and head back to the Controls

  • panel. Check out the Expansion slider - moving this opens and closes the portal, complete

  • with some cool distortion of the background. Increasing the Connection dissolves the portal

  • surface, revealing the View. Currently this is just a hole, looking through

  • to the Silo layer. What we need is to see the shot of the Thug. Dimension rift makes

  • this really easy to do. In the Media panel, locate the Thug video and drag it down onto

  • the timeline. Once it's there, we'll actually disable its visiblity by clicking the eye

  • icon next to the layer. This makes it invisible, without removing it from the timeline.

  • Although we can't see the layer directly, we CAN still reference it elsewhere. So back

  • in the dimension rift controls, in the View section, I'll set the Image to the 'Thug'

  • layer. And there he is, perfectly composited inside the portal.

  • The depth and exact position of the thug relative to the portal surface can be further adjusted

  • if you want. As with pretty much everything in HItFilm,

  • there's a bunch of extra controls for customising the dimension rift. I do encourage you to

  • go play around. Remember that you can undo everything, as HitFilm tracks your actions

  • via the History panel. Don't be afraid to experiment - that's when most of the best

  • VFX shots happen. We've covered the fundamentals for creating

  • portal shots in HitFilm. The project files you downloaded also include the more advanced

  • version of the portal used in PORTAL COMBAT. Now that you have an idea of how layers and

  • effects work in HitFilm, take a peek into those composite shots to see how they hang

  • together. One particularly interesting aspect of the

  • Portal Shot Advanced composite shot is that it actually has another composite shot embedded

  • inside it. Check out the Orange Portal layer. If you double click on the layer name, it'll

  • open up the composite shot containing the portal design. As you can see, it's combining

  • the dimension rift effect with some custom flame elements to create a more complex result.

  • As you can see, the portal alone is made up of 10 layers. By grouping them all into a

  • specific composite shot, it helps to keep the main composite shot nice and tidy.

  • Visual effects is a huge subject. We have lot of tutorials on our YouTube channel and

  • you'll find lots of friendly people on the HitFilm.com forums more than happy to answer

  • questions and share techniques. If you're just starting out on your VFX journey, you've

  • got exciting times ahead. Until next time, I'm Simon Jones, and many

  • thanks for watching.

Greetings, filmmakers! I'm Simon Jones from HitFilm.com, here with an extended look at

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在HitFilm 3 Express中免費創建門戶效果。 (Create portal effects for free in HitFilm 3 Express)

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    Hannah 發佈於 2021 年 01 月 14 日
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