Purpose
Alphatable files appear to control the strength (alpha) of each of the four terrain textures for every heightmap vertex.
General Format Overview
Alphatable files consist of a size followed by a 32-bit bitmap, where each color channel corresponds to the strength of
the terrain texture. The dimensions of the bitmap are gridinfo.gridwidth * 2 + 1 wide by
gridinfo.gridlength * 2 + 1 tall.
Alphatable Format
| Name | Data Type | Value | Description |
|---|---|---|---|
| Entry count |
UINT32
|
Varies | Number of vertices. Should be equal to the corresponding `gridinfo.ini`'s (width + 1) * (height + 1). |
| Data points |
UINT32[entryCount]
|
Varies | An array of data points for each vertex, with each of the 4 textures taking 1 byte. |