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Diffstat (limited to 'doc/lua_api.txt')
| -rw-r--r-- | doc/lua_api.txt | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/doc/lua_api.txt b/doc/lua_api.txt index 96191e1be..50234473b 100644 --- a/doc/lua_api.txt +++ b/doc/lua_api.txt @@ -1206,20 +1206,25 @@ computationally expensive than any other ore. Creates a single undulating ore stratum that is continuous across mapchunk borders and horizontally spans the world. -The 2D perlin noise described by `noise_params` varies the Y co-ordinate of the +The 2D perlin noise described by `noise_params` defines the Y co-ordinate of the stratum midpoint. The 2D perlin noise described by `np_stratum_thickness` -varies the stratum's vertical thickness (in units of nodes). Due to being +defines the stratum's vertical thickness (in units of nodes). Due to being continuous across mapchunk borders the stratum's vertical thickness is unlimited. +If the noise parameter `noise_params` is omitted the ore will occur from y_min +to y_max in a simple horizontal stratum. + +A parameter `stratum_thickness` can be provided instead of the noise parameter +`np_stratum_thickness`, to create a constant thickness. + +Leaving out one or both noise parameters makes the ore generation less intensive, +useful when adding multiple strata. + `y_min` and `y_max` define the limits of the ore generation and for performance reasons should be set as close together as possible but without clipping the stratum's Y variation. -If either of the 2 noise parameters are omitted the ore will occur from y_min -to y_max in a simple horizontal stratum. As this does not compute noise -performance improves, and is ideal for placing many layers. - Each node in the stratum has a 1-in-`clust_scarcity` chance of being ore, so a solid-ore stratum would require a `clust_scarcity` of 1. @@ -4880,7 +4885,6 @@ Definition tables }, -- ^ See 'Ore types' section above. -- ^ The above 2 parameters are only valid for "puff" ore. - -- ^ Additional noise parameters needed for "puff" ore. random_factor = 1.0, -- ^ See 'Ore types' section above. -- ^ Only valid for "vein" ore. @@ -4892,9 +4896,9 @@ Definition tables octaves = 3, persist = 0.7 }, + stratum_thickness = 8, -- ^ See 'Ore types' section above. - -- ^ Only valid for "stratum" ore. - -- ^ Additional noise parameter needed for "stratum" ore. + -- ^ The above 2 parameters are only valid for "stratum" ore. } ### Biome definition (`register_biome`) |