Dennis PahunovThis article is a stub!
Unity terrain made of 4 * 4 polygons has 5 * 5 vertices.
Heightmap pixel controls each of the vertices. This way heightmap resolution is 5 * 5 as well (i.e. 4+1)
When applying a control map, Unity is making half-pixel offset from each size (possibly to align it the same way )
Unity terrain with heightmap resolution of 33 x 33 and control textures resolution 32 x 32 Note the discrepancy between wireframe and control map pixels in the middle.
Resolution artifact
Control map resolution matches heightmap resolution
Note each control map pixel is located exactly on terrain vertex position.
Still consistent if height resolution is 65 x 65, and control map resolution is 33 x 33