Creating Terrains with Satellite Data, Volume 2 focuses on techniques that allow the artist to effectively ‘up-rez’ regions of the terrain. Adding ZBrush to the workflow, Alex identifies areas that would benefit from digital sculpting. New geometry is created from the initial satellite DEM file (Digital Elevation Model) that is topologized, UV’d, then sculpted using ZBrush’s HD Geometry. The procedural rock textures generated in Volume One are now used as ZBrush Alphas to quickly sculpt rock and cliff details. In addition to HD ZBrush workflows, Alex also shows an alternate approach that allows us to utilize DEMs directly in ZBrush, as well as how to use Decimation Master and XNormal to generate high-quality results. For the full description, click here.
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