This sample demonstrates how to create a mountain from a painted mask.
Select Help > Samples to open
your local folder where the samples are installed.
The sample folder is read-only. Save the project in a different folder to update it.
This sample shows how you can dynamically view the creation of a mountain while painting a mask. You can watch the corresponding video tutorial here.
First, lock the Mountain erosion node: select this node and press the space bar to lock the view on this node.
To start painting your own mask, disconnect the mask used in the tutorial and connect your own mask to the "Mask to Terrain" component. Select the painted mask node and click Set to black to reset the mask.
At this step, a flat terrain is displayed and you are ready to start painting your mountain.
Select Edit mask and the
Set the Hardness parameter to the minimum: we need a smooth brush here.
Start with a medium Size brush and a medium Intensity. For example in this tutorial, we start with a size of 115 and an intensity of 0.111.
Paint your mask and watch your terrain being created.
When you get the final rough shape of your mountain, you can add two steps to refine the terrain.
You can see several nodes between the painting mask and the
Erosion node used to view the resulting terrain.
First, a Mask to Terrain component is used to change the mask into a terrain. It takes into account two parameters: the minimum and maximum elevation for the result terrain. The minimum elevation will be used at the places where the mask is black (value 0) and the maximum elevation is used at the places where the mask is white (value 1).
If you are curious to know how this works, right-click the Mask to Terrain component and select Edit component.
Then, we smooth the terrain to get rid of the sharp edges.
The Mountain erosion node has been added at this step. You may not need it, or just use very low settings, depending on the previous result and your expectations.
Place your mountain in a larger terrain using a Full composition node.
Now you can find other ways to use your mountain. Try using it as a stamp with the Stamping node, for example.
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