Go 3D or not?
Hakala, Tuomas (2012)
Turun ammattikorkeakoulu
2012
All rights reserved
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-201303123214
https://urn.fi/URN:NBN:fi:amk-201303123214
Tiivistelmä
Shooting 3D may sound easy but after small research, more and more problems are revealed.. Problem with this is that everything you read will try to explain you how to shoot 3D in the viewpoint of shooting it perfectly. For this reason I was very frustrated after starting my research as it seemed worthless to even try with compromised equipment. It is good to remember that 3D has been done before the digital and computer controlled rigs were available. It may have not been perfect, but now even the cheapest equipment will give you digital workflow that wasn’t available before. I believe 3D can be done even independently although it may not be as good as in commercial productions. How good it is will be defined by your skills and limited by the equipment you can afford.
Basic requirement for seeing 3D is two eyes, each seeing the world from slightly different angle. The basic requirement for shooting 3D is two images, one for each eye. They can be shot by using 3D cameras or specialized rigs with two synced cameras as usually is the case in the professional world. To avoid headaches the images must not have any disparities, which include rotation, vertical shift, keystoning, focus, size, color and brightness. All these problems may be corrected by properly calibrating the cameras. Additional conflicts occur when the objects front of the screen are cut by the screen. This can be avoided by planning the shoot well or in post-production by pulling the edge of the screen to front of the violating object.
Interaxial is used to define the overall depth. This is the parallax range of the shot. This depth is then baked in and can’t be modified in the post. Only thing we can do in post is to move everything in the scene either closer or farther by doing horizontal image translation. This can also be done when shooting by angulating the cameras.
Basic requirement for seeing 3D is two eyes, each seeing the world from slightly different angle. The basic requirement for shooting 3D is two images, one for each eye. They can be shot by using 3D cameras or specialized rigs with two synced cameras as usually is the case in the professional world. To avoid headaches the images must not have any disparities, which include rotation, vertical shift, keystoning, focus, size, color and brightness. All these problems may be corrected by properly calibrating the cameras. Additional conflicts occur when the objects front of the screen are cut by the screen. This can be avoided by planning the shoot well or in post-production by pulling the edge of the screen to front of the violating object.
Interaxial is used to define the overall depth. This is the parallax range of the shot. This depth is then baked in and can’t be modified in the post. Only thing we can do in post is to move everything in the scene either closer or farther by doing horizontal image translation. This can also be done when shooting by angulating the cameras.