pub fn preliminary_surface_level<N: DimensionNoises>(
noises: &N,
cache: &mut N::ColumnCache,
x: i32,
z: i32,
) -> i32Expand description
Evaluate preliminary surface level at quart-quantized coordinates.
Vanilla’s NoiseChunk.preliminarySurfaceLevel() quantizes X/Z to quart
positions before lookup, matching FlatCache’s 4-block grid.