Christie Spyder Stereoscopic Option 2, User Manual

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Understanding the MirageHD Stereo Mode
Spyder Stereoscopic Option 2 (SSO2) User Manual 13
020-000869-01 Rev. 1 (04-2016)
Frame Rate
The largest difference between the two modes is frame rate. The frame rate of an interleaved stereo source is
not doubled as it is in active stereo sources. Considering that two frames of video are required (a left and right
eye frame), an interleaved stereo input running 60Hz has an effective refresh rate of 30Hz. An active stereo
source regains a full frame rate by doubling output refresh rate; to achieve an effective 60Hz refresh rate the
actual refresh rate must be doubled to 120Hz.
Maximum Supported Resolution
There is an additional benefit to the lower frame rate of interleaved stereo sources as inputs to Spyder; the
maximum input resolution is not limited to the SXGA+ resolution as it is in active stereo inputs. An interleaved
stereo input has the same maximum resolution as a non-stereo input
– 2048x1200@60hz.
Physical Input Requirements
The frame doubling created by an active stereo source requires the Spyder system to use two inputs to process
the signal, quickly increasing input consumption when multiple active sources are in use. The ‘normal’ refresh
rate of the interleaved stereo source, however, can be processed by a single Spyder input module.