Saturday, August 11, 2007

Faux 3D, Pt II

The final shot of the animation has been up in the air for the entire project. Every round of revisions that came in had a new version.

When time ran out, I'd built no geometry for a final, high-rez render of the Tetons. I did have a photo that one of the geologists liked very much: a sufficiently high-resolution photograph taken - I think - from the Space Shuttle, looking down on Jackson Hole and the Teton range.

I pulled it into Photoshop and prettied it up a bit, then brought it into After Effects. I wanted something more than a static shot to end on. I thought about doing a simple zoom out (or in) but that seemed boring too.

After Effects (AE) does have limited 3D capabilities, although it's all based on flat planes. With a shot from space, I figured I could get by without any real 3D geometry to the mountains, but I did want to do a real camera move, rather than a simple zoom.

I've recently watched some great AE tutorials by Andrew Kramer, and one of them was on creating a simple 3D scene in AE. Perfect. Thanks, Andrew.

I created a flat plane in AE and adjusted it to match the perspective of the photo as best I could. Next I projected the photo onto it, from the camera's perspective. Now, when I moved the camera in AE, the perspective of the scene shifted realistically. It's a subtle effect, but it's something the eye notices when it's not there.

I added another 3D plane, just above the landscape, and put some Fractal Noise clouds on it, to give a little parallax as the camera moves and reinforce the illusion.

The results were pretty good and, better yet, pretty fast.

1 comment:

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