DuBaron YATT - Yet Another Terragen Terrain Tool

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YATT - Yet Another Terrain Tool

Yatt is a tool that allows easy manipulation of STRM and terragen terrain data.It can import and export those filetypes.
Status: Alpha

Load from and save to terrain and srtm (.hgt, .ter) files
Merge .hgt files to a single larger file
Leveling tools - special functionality to alter terrain levels
Statistical filters
Common tools like resize (resample), crop, select, brush, flip
Polyline selection allows detailed sub-picture selection and altering
Multiple sections ("layers") allow different operations on subparts of the main image
Full support for non-existing data (unsampled pixels)
Undo, undo levels customizable. Seperate undo for each section.
Zoomed view and editing
Preview of water level

Download latest version of YATT
Download your STRM data from the nasa . Make sure you know geographical coordinates of the area you want.
Use terragen to convert your terrain into a realistic 3D representation.

Yatt has been used to convert heightmaps to use with the Lake Geneva massive rendering project.

Licensed as freeware for personal, educational ("non-commercial") use. For commercial use, you can buy a site license. Contact rene