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The table below illustrates the relationship between bit depth, network refresh rate and
network bit depth.
Refresh/ Bit Depth 8 bit 10 bit 12 bit
24 Hz 1,250,000 1,000,000 833,333
25 Hz 1,200,000 960,000 800,000
30 Hz 1,000,000 800,000 666,666
50Hz 600,000 480,000 400,000
60Hz 500,000 400,000 333,333
The Effect of Rotation and Interpolation on The Number of
Supported Pixels
Fixture rotation and fixture interpolation between different pixel pitches also have
implications on the number of supported pixels and therefore the number fixtures that can
be attached to an output.
Rotating fixtures 0°, 90°, 180°, 270° has no implications on supported pixels. However,
rotating a fixture any other amount uses twice as many of the available pixels. i.e. Rotating a
fixture by 45° uses up twice as many pixels as the fixture would if it was rotated by 0°, 90°,
180°, 270°.
Fixture Interpolation
One of the more interesting and useful features of the Tessera series of processors is the
ability to use fixtures with different pixel pitches to ‘match’ the pixel pitches using a high
quality bilinear interpolation scaling algorithm.
This means that this fixture interpolation can use up more pixels than if the fixtures were
being used in 1:1 mode.
For example: On a canvas with 3 kinds of fixtures, we have three different fixtures with
different pixel pitches: some 5mm pixel pitch panels that are 500mm x 500mm, some 7mm
pixel pitch panels that are the same size as the 5mm panels, and a 15mm pixel pitch panel
that is 1000mm x 500mm.
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