This node creates an alpha composition between two terrains at locations defined by a mask.
The principle of the Alpha blend is as follows:
When upgrading from Instant Terra v1.0 to v1.5, you need to modify your projects if they contain Alpha blend nodes to achieve the same result. If both entry terrains are the same size, simply swap them around. If they are not the same size, you need to invert the mask, which can be done by adding an Invert mask node.
To add a node, right click in the Graph Editor and select Create Node > Terrain Composition > Alpha blend.
Link the Alpha blend node to three input nodes: two terrain generators and a mask.
At each vertex:
Both input terrains and the input mask may have different sizes and resolutions. The size and resolution of the output terrain are determined by those of the first terrain, and the second terrain and the mask are enlarged or reduced so that their size corresponds exactly to the size of the output terrain.
Watch our Alpha blend node video tutorial.
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