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Make the mountains snowy?
Hi
First of all I have to say that creative cow is fantastic.
Now: I am Raphael, working for the austrian broadcasting agency (ORF) as a TV director for a local daily (30 minutes) broadcast. Also my job is motions design and graphics.
We are using Microsoft Virtual Earth’s (I am sorry for that) satellite images for our videos. As you know that these satellite images are shot in summer. In austria there is a lot of snow during the winter time and especially on the mountains. So I started color correcting the scene. But it doesn’t work as well as I thought. I have tried change color, change color to, luma key combined with minimax, and combinations of other effects, but I can not do it nicely.
Here is the link to the footage to get an idea, what I am talking about.Maybe you can give me some help to get rid of that problem.
Thank u very much for all these fabulous tutorials, I’ve already bought die motion design DVD, and I am looking forward to do the next tutorials during my upcoming holidays. nice whishes from austria (where the best wine comes from)
Raphael -
3 Replies
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Hi Raphael,
I’m not familiar with Virtual Earth, but I am assuming you’re getting 2D images from that and then using a 3D depth map to give the mountains shape. If that is the case then I would recommmend bringing the still image into Photoshop and painting the snow onto the scene. That’s probably the quickest and most straightforward way of doing what you want, assuming you are extruding a 2D image with a bump map in a 3D program.
If you are not doing the 2D/extrusion thing, and Virtual Earth is providing you with the rendered 3D scene and camera moves, your best bet is probably to do a series of tracked still matte paintings to put the snow onto the scene. Check out the “3D Set Extensions” tutorial on videocopilot.net for an excellent tutorial on how to do a simple matte painting. Your problem is a little more complex than what he does there, because it involves multiple camera moves, but you should be able to extrapolate what he’s doing to your situation.
Good luck with your project,
Steve -
Thank you first for your quick reply.
Microsoft virtual earth’s output is a movie. (.wmv)
this I import to AFX.In this case does the “3D Set Extensions” tutorial on videocopilot.net already work?
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You will have to tweak it a bit, but that tutorial should give you the tools in your toolbox to do what you want to do. The issue will be that that tutorial is based on a stationary camera on a tripod panning across a scene. What you’re doing here is more complicated in that the camera perspective itself it changing, but you should be able to avoid any true roto work by making a separate painting for each of the 5 or so perspectives you have in the shot you posted.
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