The efficient rendering of navigation maps on the tile-based deferred rendering architecture of the PowerVR chipset families.
Visualization of navigation data is a complex task. The graphics should be appealing, informative, running at a high frame rate, and utilizing low power consumption at the same time. This whitepaper deals with the efficient rendering of navigation maps on the tile-based deferred rendering architecture of the PowerVR chipset families. The navigation demo, which can be found in the PowerVR SDK, implements the optimization techniques described in the following sections. Particular attention is given to the various restrictions found in navigation systems for memory constraints, paging, and suchlike. The geometry generation techniques described in the first few sections illustrate a possible approach. There may be other, more suitable solutions depending on the input data. For further reading and a more comprehensive overview, it is recommended to look at the documents packaged in the PowerVR SDK, particularly the application development recommendation whitepapers. These offer a good understanding of performance pitfalls and general purpose optimizations when developing for mobile graphics solutions.
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