Soil

The soil, soil_replace shaders adds a layer of voxels of a color on top of voxels matching the selected colors. soil adds the voxels on top, and soil_replace replaces the voxels.

This shader is similar to the cover shader, except cover adds a layer to all voxels, where these shaders only works on the selected colours.

Arguments

Argument	Description
Color	Color index
Headroom	The number of voxels of space that must be available above the surface voxel. Setting to a higher value will stop voxels from forming in gaps

Headroom

A Headroom of 1 checks that 1 voxel higher to make sure there is room.	A Headroom of 10 checks that 10 voxels higher to make sure there is room. Resulting in gaps where there is overhang from other voxels.