Stereoscopic 3D Filmmaking: An Introduction

What we’ll cover

Basics of Stereoscopic 3DHow does Stereoscopy work?Fooling our eyes into perceiving depthCapturing stereoscopic imageryViewing stereoscopic imagery


But First…

• The word stereoscopy derives from the Greek "στερεός" (stereos), "firm, solid" & "σκοπέω" (skopeō), "to look", "to see“

• We are seeing something solid – unlike 2D it’s something that has shape and volume. © 2013 Enhanced Dimensions

Why make a 3D Film?

• 3D Film is not a Genre– Make your film in colour, with sound... and possibly in 3D?– Stereo 3D is another item in your filmmaking palette– Consider Stereo 3D and how it can be used

• 3D Benefits– Stereo 3D delivers more visual information– Stereo 3D can direct focus, the same as other film techniques– Can be used creatively to create vast open space, or confine us claustrophobically– Can add surprising small details, adding realism or magic to the scene– Can visually clarify detail in density © 2013 Enhanced Dimensions

Basics of Stereoscopic 3D


How does Stereoscopy work?

• Emulates human vision with two images - one for left, one for right.• A filter of some sort splits the image and directs appropriate image to appropriate eye• The brain merges into 3D


Fooling our eyes into perceiving depth

• 65mm (2.5 inches) inter-occular distance• This is an important measurement, that

impacts on much of 3D film theory© 2013 Enhanced Dimensions


• When your eyes cross inwards the brain understands the object you are focussing on is near


Helping our eyes perceive depth

• Other Depth Cues:– Colour– Light/Shadow– Perspective– Relative Size/Scale– Occlusion (Blocking)– Parallax Motion


Capturing stereoscopic imagery

• Camera A Takes one shot• Camera B - 65mm (2.5”) to the right - takes another shot• You now have an ortho-stereoscopic pair

LEFT RIGHT

A B


Viewing stereoscopic imagery

• A filter of some sort splits the previously captured image and directs the appropriate image to appropriate eye


Viewing stereoscopic imagery

• The brain merges and re-interprets the images to create an illusion of 3D vision


Basics Summary• Capture a left & right view• Deliver the right & left view to the viewer• The brain does the rest... Well sort of...

• Sounds simple. How come it’s such a big deal then?• The challenge isn’t in creating it, the skill is in the

precision control of the stereoscopic 3D effect.© 2013 Enhanced Dimensions

FIN


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Stereoscopic 3D Filmmaking: An Introduction

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