In this lesson you will learn how to animate a camera's motion along a path. You will create a video from this moving camera, to impart a spatial sense in an architectural interior. Open the Motion To project file. There's an object here which is a spline. Select it and orbit, and observe that the spline is a three dimensional object. It represents the path a camera will take while moving through this space. Before you can animate a camera along a path, you first have to create a still camera.
So type v for view, and press Enter. Click New and give it a name. I'll call it A1 to indicate an animated camera. But paradoxically the view type should be still. Click OK. And OK again. The camera that I just created Is what I'm looking through right now. So if I zoom out and orbit, you'll see the camera is right here.
Now, the position of this camera doesn't matter because in a moment it's going to be moved over here to the start of the path, and then we'll see it move along the path. Revealing the interior of the space. To do this type anipath, for Animation Path. Here in the camera area, click this button to select the Motion Path. Then click on the spline. We need to name this, and I'll just accept the default name of Path1, and click Okay.
Let's do a preview. It's way too fast. I can hardly tell what's going on. I'll close this window. An over here let's increase the duration. It's only one second right now. Let's say that it's ten seconds. Do another preview. Still it's, way too fast, but we're getting a sense of what's happening. I notice here that the end of the path is kind of looking at this window and part of the wall. This is kind of an awkward place to end the video. So lets go ahead and cancel and cancel out of this command as well. Then zoom in and orbit until you can see the end of this spline path. Select the spline, and you'll see two grips down there. Let's get closer to it.
Position the Cursor over one of the grips, and choose Stretch Fit Point. Move it back, right about here. And then move this back as well, say Stretch Fit Point. And move it back, about like that. So now the camera will end up right here. And hopefully we'll see more of this seating group. Maybe I'll move it over, as well, in the green direction, so we make more of a turn.
Press Escape. And then ani path again. Anipath. Reselect the path, OK. Change the duration. Let's see how it looks at 45 seconds. Click Preview. This motion is slower and it's more appropriate for an architectural interior.
Okay, I like how that ends much better. You can drag the preview out of the way. And you can scrub the time slider down here, and as you do, notice that the camera is moving down here along the path. Close the preview window, and let's say that we're satisfied with this motion We would then choose a format. I'll choose avi, and a resolution.
I'll select the visual style as shaded. And then click okay. We're prompted to save a file name, avi1.avi. I'll click Save. It's outputting the video. When it's done we'll be able to look at the AVI file and we could send it to someone who doesn't use AutoCAD for example.
This is a way you can share a walkthrough of an architectural interior with a client. When the animation is done, go ahead and double-click on AVI1 to view it.
So in this lesson. You learned how to use the any path command to output a video of a camera moving along a spline path.
- 3D views, perspectives, and tools in AutoCAD
- Controlling the visual style
- Working with tiled viewports
- Composing perspective views
- Drawing in 3D
- Modeling an Ionic column
- Documenting 3D models
- Creating dynamic slideshows, animations, and renderings