HD SPECIFICATIONS

In order to detail our NEXTMesh specifications, it should be recalled what a mesh is and which parameters are used to describe it.

NEXTMESH ULTRA HD SPECIFICATIONS

In FSX, a mesh is a horizontal grid of the Earth’s surface for supporting the numerical description of the relief. The smaller the grid, the finer terrain relief will be. The global mesh in FSX has a 4.8 km resolution. Europe regions have improved resolution with a 76m mesh resolution. Our HD mesh “whole Europe” is a 19m resolution. NEXTMesh EUROPE – Domestic products at Ultra High Definition are designed with the very best data currently available which is a 5m grid allowing the finest restitution.

NEXTMESH ULTRA HD SPECIFICATIONS

On the other hand, the quality of a mesh can also be measured by its vertical resolution. That is, the precision of measured elevation of each point of the grid. Basic FSX has a vertical resolution of 1m. Our data is accurate to less than 10cm

NEXTMESH ULTRA HD SPECIFICATIONS

Finally the data have to be compiled to be usable by FSX. They are resampled according FSX world grid index system called LOD. This can lead to abuses (see below). Our Ultra HD products are resampled with 4.75m resolution and a vertical accuracy of 12.5cm. Compression rates are optimized to reduce files sizes and preserve data.
Also the files are devided in areas of 0.5° x 1° to optimize the memory occupation and loading time.

NEXTMESH ULTRA HD SPECIFICATIONS

Horizontal data precision : 5m
Vertical data precision : 6.25cm
Ultra HD mesh resolution : 4.75m
HD mesh resolution : 19m
Vertical HD and Ultra HD mesh resolution : 12.5cm

NEXTMESH ULTRA HD SPECIFICATIONS

Sometimes you can find on the internet some mesh files introduced as 4.75m mesh. Most of the times this is kind of fraud. Very often, they they get 30m or 50m Digital Elevation Models and they oversample to 4.75m. As a result you get heavy files with poor data and bad vertical precision. And that can inhibit other good products.