L3DT documentation
Large 3D terrain generator

Alpha maps

Alpha maps are images used for run-time texture blending (or 'texture splatting'), which is a technique typically used in games to achieve high-resolution terrain detail. Alpha maps consist of one or more layers (read: colours), which each represent the coverage of a texture/land type over the surface of the terrain. This is similar to the attributes map used in L3DT, and alpha maps are in-fact generated from the attributes map by L3DT.

Example map

Alpha map #1 Alpha map #2
Alpha maps for a 6-component terrain texture, rendered in RGB.

Further reading

l3dt/reference/maps/alpha.txt · Last modified: 2017/08/31 05:47 (external edit)
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