This sample imports a terrain from a file, tweaks it, computes a flow map, and extracts a color map from it to apply to an output terrain.
See Importing a terrain from a file - Extracting a color map - Applying a color map.
- The first step imports a 1024 x 1024 k terrain from a file.
- The imported terrain's data is cleaned through a series of mask transformation and terrain transformation nodes, a Mask from slopes node and a Perlin noise generator, and the results are summed.
- The result is tweaked to generate the desired effect.
- The terrain size is increased to 2048 x 2048 K.
- Hydraulic erosion is applied and a mask from the heights of the terrain is created. The Apply curve node modifies the mask profile by changing the values of the vertices on a curve that define the mask values.
- Lastly, the color map is extracted from the flow map and applied to the resized terrain.
