NVO and The Digital Planetarium. Ed Lantz Product Development manager Spitz, Inc. NVO Outreach Workshop. July 11, 2002. Dome Theaters. Traditional Planetarium. Large-Format Film Theatre. Digital Planetarium. Traditional Planetaria. Hemispheric Projection Screen Starfield Projector
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Bibliotheca Alexandria Alexandria, Egypt
Polar Source is Split Into Sub-Frames and Edge-Blended
Sub Frame 1 Sub Frame 2 Sub Frame 3 Sub Frame 4
Polar Fisheye Source Image
Polar Fisheye(Azimuthal Equidistant)
Advantage - Efficient File FormatDisadvantage - Scene is Broken Up, Difficult to Preview
Number of Pixels Required to Project Eye-Limited Resolution on Hemisphere:
Number of Pixels =
(0.5) (4 steradians) (57.3°/steradian)2 (60 arc min/deg)2
(0.5 arc min/pixel)2
= 300 Million Pixels!!!