Fast jet
simulators represent the pinnacle of simulator technology. XPI Simulation training systems deliver real world operational capabilities
for day and night missions in all weather conditions.
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There
are a number of issues that fast jet simulator manufacturers
should be aware of, in particular the issue of low latency (the
response time between pilot input and video output) is crucial
to the level of realism for a pilot. Handling latency puts a
lot of visual systems under strain but XPI Simulation’s high-end
products are more than capable of dealing with the issue of
latency.
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XPI Simulation offers geo-specific texturing and databases as well as
a high texture memory capability. XPI Simulation can also animate
databases of any size in real time so it is now conceivable
that terrain databases representing the entire world can be
paged in real time. Previously this information would have been
too large to be held in memory, but the database can be cut
into tiles thus ensuring that the computer only has to handle
the details of each separate tile as the area comes into view.
It is now possible to visualise gigabytes of data. This provides
many advantages to the user; Tiles can be brought in beyond
the horizon and gradually faded into view to prevent unsightly
popping.
XPI Simulation also offers Worldstore a solution designed by XPI Simulation, ideal for fast jet sim. It has been designed to provide
virtually unlimited space for 3D database storage. This allows
for the generation and the use of geo-specific terrain databases
of global size. So customers now no longer need to worry about
being hindered by the size of databases that they actually want
to use. With Worldstore it is possible to simulataneously update
the database whilst the image generator is being used without
affecting the frame rate, ensuring there is no need to stop
training or interrupt operations.
As databases
get larger, the standard representation for co-ordinates, single
precision floating point is no longer good enough. XPI Simulation's
software solves the problem by the inclusion of double precision
values within the API and the database. It is the API that then
handles the internal conversion from double precision to the
single precision values required by OpenGL without the loss
of any accuracy.