Greenscreen or CG?
Greenscreen or computer generated?
Today many movies use CG to create a model then animate so that it will fit into the live action. I see that more and more independent filmmakers are also using this technique, but for people that aren't computer savvy there is another solution to create your model.
For me, using 3D Studio Max or Cinema 4D will take me weeks of learning. In one of my movies a helicopter was to be flying top of a car driving down the highway. How did I think of doing this since I did not know how to animate and build models via computer? I purchased a model helicopter, and filmed it in front of a greenscreen taking into consideration of the lighting and position of camera, the blades weren't rotating, but I've angled in a position in which I will be able to rotate them in post afterwards. I then I filmed the background plate with the cars moving also taking note of the camera angle and lighting, then used After Effects to composite the shots together.
I've used a mask to remove the fixed blades, then used a single clear image of a blade and placed it into the shot. Of course the footage on the helicopter is moving, so I had to track the blades onto the helicopter so that it looked as if the blades were on it. Together with the blade stuck on the helicopter, I've took the entire shot of the helicopter and placed it onto the live action plate with the cars. The camera was moving in this shot, so I had to track the helicopter in. Now that the helicopter is in the shot, for every frame, I've turn on and off the opacity of the blades giving the illusion that the blades are rotating.
All that's left is the shadow of the helicopter, and I had to colour correct the helicopter to match the live action plate. Then did another colour pass for it to match the rest of the footage.
This shot was about 2 seconds in length and took me about 3 days to put everything together learning several new techniques on the way, if I used a 3d software application, for me, it will personally take me much longer.
So for those people out there that aren't computer savvy, greenscreen models may be the way to approach the shot. You can also film your talent on a greenscreen background then track them onto the model. You can also research on matte painting, 3d tracking, set extensions to help build that scene that your looking for! Thanks for reading.
Today many movies use CG to create a model then animate so that it will fit into the live action. I see that more and more independent filmmakers are also using this technique, but for people that aren't computer savvy there is another solution to create your model.
For me, using 3D Studio Max or Cinema 4D will take me weeks of learning. In one of my movies a helicopter was to be flying top of a car driving down the highway. How did I think of doing this since I did not know how to animate and build models via computer? I purchased a model helicopter, and filmed it in front of a greenscreen taking into consideration of the lighting and position of camera, the blades weren't rotating, but I've angled in a position in which I will be able to rotate them in post afterwards. I then I filmed the background plate with the cars moving also taking note of the camera angle and lighting, then used After Effects to composite the shots together.
I've used a mask to remove the fixed blades, then used a single clear image of a blade and placed it into the shot. Of course the footage on the helicopter is moving, so I had to track the blades onto the helicopter so that it looked as if the blades were on it. Together with the blade stuck on the helicopter, I've took the entire shot of the helicopter and placed it onto the live action plate with the cars. The camera was moving in this shot, so I had to track the helicopter in. Now that the helicopter is in the shot, for every frame, I've turn on and off the opacity of the blades giving the illusion that the blades are rotating.
All that's left is the shadow of the helicopter, and I had to colour correct the helicopter to match the live action plate. Then did another colour pass for it to match the rest of the footage.
This shot was about 2 seconds in length and took me about 3 days to put everything together learning several new techniques on the way, if I used a 3d software application, for me, it will personally take me much longer.
So for those people out there that aren't computer savvy, greenscreen models may be the way to approach the shot. You can also film your talent on a greenscreen background then track them onto the model. You can also research on matte painting, 3d tracking, set extensions to help build that scene that your looking for! Thanks for reading.
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