Wednesday, November 3, 2010

Create A 3d Scene

You need 3D glasses to view the 3D scene you made.


Shooting a 3D scene requires the right equipment and software program. There are actually many ways to produce a 3D shot. However, unlike the more expensive and demanding professional workflows, the basic option allows the general public to also delve into creating 3D work using readily accessible resources. Essentially, you can create a 3D scene by shooting a set of stereo images of a scene, then combining them together using a 3D conversion program.








Instructions


1. Put a "left" and "right" label for each camera using a masking tape or any temporary adhesive you can place on the camera surface. This allows you to conveniently determine which camera is used for your left and right video footage.


2. Set up your two cameras to record your stereo images by placing each of them on a tripod. Level them to share the same height, then frame your shots with the two cameras looking at the same look main subject and shooting with identical video frames. For an amateur shooting setup, the distance between your camera lenses should be anywhere between 2.5 to 20 inches. Determining the best camera distance for your shot is quite a technical job that requires both mathematical and creative decisions. As a basic guide for non-professional work; if you are shooting landscapes with varying depths or distances of different elements on screen, it is better to use longer distance between your two cameras.


3. Frame your shot and ensure each camera will shoot identical shots. Ideally, use the same lenses, and preferably the same camera models to get identical footage from the two cameras. Be careful when using the zoom function that you shoot identical footage with the only difference being the perspective of each "left" and "right" footage. The concept of 3D mimics the function of the human eyes, where the left and right eyes look at the same object at the same time, but the eyes have slightly different distance away from each other.


4. Press the "Record" button on each camera.


5. Assign someone to go in front of the two cameras and use a clapperboard. You can buy this in online film stores or in some film and novelty shops. If you don't have one, you can simply use a person's two hands clapping together to imitate the clapperboard's function. Allow the "clapping" function to get recorded by both cameras. Ensure the cameras' built-in mics are recording the sound as well.


6. Shoot the footage you want to use, then press each camera's "Stop" button after acquiring the footage you need.


7. Transfer the video footage from both cameras to the computer. Most cameras have FireWire and USB cable options for camera to computer connections.


8. Import the video footage from both cameras into your 3D conversion program. If you don't have one, you can download and install any of the free programs available online. Some are available for purchase which come with additional features. Popular ones used for amateur 3D work include StereoPhotoMaker and 3D Combine.


9. Determine your left and right videos, then place them on the appropriate preview windows for your stereo footage. Use the sound and visuals from the clapperboard so you know where to start and end your video. This way, your left and right footage is matched accordingly.


10. Make the necessary video adjustments required for each video prior to the actual conversion. These adjustments allow the program to correct the visual attributes in your videos so they look identical for 3D use. Depending on your conversion program, these functions typically include adjustments on the color, brightness, contrast and alignment of your footage. Button names and locations may vary from one program to another, but essentially their functions remain very similar, if not exactly the same.








11. Press the applicable conversion button in your program. While this varies in the program used, this is usually the "Anaglyph" or "Convert" button. Wait for the conversion to finish.


12. Wear anaglyph 3D glasses, then play your newly converted 3D scene. A pair of anaglyph 3D glasses is distinct, as their different-colored lenses are typically composed of red and cyan filters. You can buy a pair online or in select video stores.

Tags: left right, each camera, both cameras, conversion program, footage from, video footage, your left