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Blender is a powerful open-source tool for 2D and 3D graphics, full-on animation, compositing, and post-production. It is used to create movies and special effects, even in HD. In Blender Essential Training, Roger Wickes offers new Blender users a thorough explanation of its interface, tools, and features. He also demonstrates practical techniques and shows how to access the online and openndash;content resources of this amazing tool. Specific 3D techniques covered include navigating in 3D space, using cameras and lights, and rendering. Roger demonstrates how to rig, animate, and composite a character over live action. Exercise files accompany the course.
One of the most coolest effects there is and most recently requested and added and everything is the Speed effect. So I would like to highlight that effect. Here we have Captain Knowledge walking into the building in normal real-time. What we are going to do is show you the speed control by going in and adding Effect > Speed control. I'd selected the movie by the way. So every effect strip needs at least one core strip just to work on, and create the effect. Over here in the Effects panel, we have a couple of controls.
First of all, the Global Speed refers to the relative speed of the original strip, relative to what you want to see. So if we just go ahead and add in 0.5 here, now the original strip is slowed down by one-half. So now, he is walking in half-speed. We always want to enable frame blending, because that does some blur between the two frames that are being cut out and provides a much better effect because otherwise, you are going to get like this choppy kind of stutter effect going on.
And as we play the strip, notice what happens now. Unfortunately, the strip here is about let's say 270 frames long, but he is only about half-way into the building, because we have gone half-way. So what you are going to have to do when you use the Speed effect is double the amount of time that you would normally give to this strip. So the original strip was 280 frames long so we need to blow our animation out to 560 and drag the strip out to the 560 length or so, and click to drop it in place, so that we can play the entire strip in half-speed.
And here he is going to through the Time Warp, if you will, of this whole distance learning thing. We can also make him to speed up all of a sudden by using the Ipo curve. So if we select this Speed control strip, let's go ahead and set this back to like 1 or let's say 2. Make him go like twice as fast and so now if we Ctrl+Left-click, set our Ipo points, we can just draw a curve and show him going from a normal speed to all of a sudden really speeding up and then slowing down.
Now, I do need to tell you and warn you though that when you do go faster than normal speed, you are going to run out of frames sooner. So you almost have to do the opposite effect of scrunching it down, so that you keep the same relative strip length, relative to the amount of time that it's being actually shown on the monitor. So, that's how you can speed up or slow down video with Blender, you can combine this with like a zoom effect using that translate effect, to have that bullet stop midstream and slow down, and focus in on the bullet coming at you, or the sphere that's being thrown, or the chair that's going across the room, or all those sorts of dynamic things that happen that when you want to use the Speed Control to really emphasize the effect of what's going on.
Very common thing I have seen is when you shoot the video with the girl and her hair is flying, you zoom in, and slow it down, and that's a very dramatic effect to really focus in, and you can combine that with the Lens Distortion to really come in and focus in on her face and everything like that, to create some really neat professional effects in Blender.
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