Wuzzy/minetest_perlin_explorer-cd2025
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Rephrase the value midpoint high/low stuff

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Wuzzy 2022-04-20 15:51:06 +02:00
parent 32c1446a9d
commit 9ce4e41c95
2 changed files with 45 additions and 32 deletions
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55
README.md
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@ -181,40 +181,53 @@ Playing around with parameters isn’t very useful if you don’t
get a visual result. That’s where the node generation comes
into play. Here you specify parameters for generating nodes
from the noise.
All noise values are either high or low and are divided
by the **midpoint**: Values equal to or higher than the
midpoint are high, otherwise low.
In 2D mode, the mapgen will a flat XZ plane with nodes,
one node for every value.
one node for every value. Both low and high values
are used.
In 3D mode, the mapgen will place nodes at every position
with a value of greater than or equal to 0. Negative values
with a value of greater than or equal to the midpoint.
Only high values will create visible nodes, low values
will be air.
(Negative nodes are not placed because then the whole area
would be full of nodes and you would barely see anything! :D)
Generated nodes will be color-coded, which stands for the value:
* White to yellow to orange: High values
* Light blue to blue (with a small dot): Low values
Now, here are the parameters you can use:
There are two parameters:
* Low color at: You are supposed to enter a noise value here.
This is the value at which the color gradient of the
lower values begin.
* High color at: Same as above, but this is the upper
limit and the end of the color gradient.
* Mid color at: The noise value which will be colored
as the 'zero/mid point' between the low and the high values
* Low color at: The lowest noise value at which the
color gradient for low noise values begins.
* High color at: The highest noise value at which the
color gradient for high noise values ends.
For example, with the default parameters -1, 0 and 1,
all values below 0 will use the 'low values' color gradient
and all values above 0 will use the 'high values' color gradient.
The low color gradient begins at the “Low color at”
setting and ends right before the the midpoint.
The high color gradient begins at the midpoint
and ends at the ”High color at” setting.
For example, if 0 is the midpoint, and the “low/high color”
settings are -1 and 1, respectively, all values below 0 (the
midpoint) will use the 'low values' color gradient and all
values above 0 will use the 'high values' color gradient.
All values at -1 and below will have the "extreme low"
color and all values at 1 or above will have the "extreme high"
color.
You don’t *really* need the color coding to be setup right as
you can always use the Perlin Value Getter. But it can be
very helpful to get a feel.
color (dark blue) and all values at 1 or above will have the
"extreme high" (orange) color.
Note that the colors only serve as a visual aid and
given the limited palette, is only an estimation
of the noise values. You can always use the Perlin Value
Getter for the exact values.
If you have problems seeing color differences, feel free
to edit these files in the `textures` directory of this
mod with an image editor:
* `perlin_explorer_palette.png`: Low value colors
* `perlin_explorer_palette_neg.png`: High values colors
* X, Y, Z: Coordinates of the bottom left front corner if you
want to generate an area manually with “Apply and create”
@ -232,7 +245,7 @@ no other meaning:
* Grid Nodes: Solid see-through nodes (like glass)
* Minibox Nodes: See-thorough nodes, but smaller. You can also
walk and climb up on down in these
* Stone: Places stone for positive values, air otherwise.
* Stone: Places stone for high values, air otherwise.
This uses the stone node from the game (if it supports it).
Solid Nodes are recommend to use normally.

22
init.lua
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@ -271,7 +271,7 @@ if COLORIZE_NODES then
end
minetest.register_node("perlin_explorer:node", {
description = S("Solid Perlin Test Node"),
description = S("Perlin Test Node (High Value)"),
paramtype = "light",
sunlight_propagates = true,
paramtype2 = paramtype2,
@ -282,7 +282,7 @@ minetest.register_node("perlin_explorer:node", {
drop = "perlin_explorer:node",
})
minetest.register_node("perlin_explorer:node_negative", {
description = S("Solid Negative Perlin Test Node"),
description = S("Perlin Test Node (Low Value)"),
paramtype = "light",
sunlight_propagates = true,
paramtype2 = paramtype2,
@ -294,7 +294,7 @@ minetest.register_node("perlin_explorer:node_negative", {
})
minetest.register_node("perlin_explorer:grid", {
description = S("Grid Perlin Test Node"),
description = S("Grid Perlin Test Node (High Value)"),
paramtype = "light",
drawtype = "allfaces",
use_texture_alpha = "clip",
@ -306,7 +306,7 @@ minetest.register_node("perlin_explorer:grid", {
drop = "perlin_explorer:grid",
})
minetest.register_node("perlin_explorer:grid_negative", {
description = S("Grid Negative Perlin Test Node"),
description = S("Grid Perlin Test Node (Low Value)"),
paramtype = "light",
drawtype = "allfaces",
sunlight_propagates = true,
@ -319,7 +319,7 @@ minetest.register_node("perlin_explorer:grid_negative", {
})
minetest.register_node("perlin_explorer:mini", {
description = S("Minibox Perlin Test Node"),
description = S("Minibox Perlin Test Node (High Value)"),
paramtype = "light",
drawtype = "nodebox",
climbable = true,
@ -337,7 +337,7 @@ minetest.register_node("perlin_explorer:mini", {
drop = "perlin_explorer:mini",
})
minetest.register_node("perlin_explorer:mini_negative", {
description = S("Minibox Negative Perlin Test Node"),
description = S("Minibox Perlin Test Node (Low Value)"),
paramtype = "light",
drawtype = "nodebox",
climbable = true,
@ -1199,18 +1199,18 @@ local show_noise_formspec = function(player, noiseparams, profile_id)
box[0,0;9.5,2.9;]]..FORMSPEC_BOX_COLOR..[[]
box[0,0;9.5,0.4;]]..FORMSPEC_HEADER_COLOR..[[]
label[0.15,0.2;]]..F(S("Node generation"))..[[]
field[0.25,0.75;1.5,0.75;value_min;]]..F(S("Low color at"))..[[;]]..value_min..[[]
field[2.25,0.75;1.5,0.75;value_mid;]]..F(S("Mid color at"))..[[;]]..value_mid..[[]
field[0.25,0.75;1.5,0.75;value_mid;]]..F(S("Midpoint"))..[[;]]..value_mid..[[]
field[2.25,0.75;1.5,0.75;value_min;]]..F(S("Low color at"))..[[;]]..value_min..[[]
field[4.25,0.75;1.5,0.75;value_max;]]..F(S("High color at"))..[[;]]..value_max..[[]
button[6.25,0.75;0.75,0.75;autocolor;]]..F(S("Auto"))..[[]
dropdown[7.55,0.75;1.75,0.75;nodetype;]]..nodetypes_list_str..[[;]]..nodetype_index..[[;true]
]]..xyzsize..[[
tooltip[value_min;]]..F(S("The lowest noise value to be represented by the node color gradient."))..[[]
tooltip[value_mid;]]..F(S("The noise value which is represented as the midpoint of the node color gradient."))..[[]
tooltip[value_mid;]]..F(S("Noise values equal to or higher than the midpoint are treated as “high”, otherwise as “low” values. Used for node colorization. In 3D mode, low values will become air."))..[[]
tooltip[value_min;]]..F(S("The lowest noise value to be represented by the node color gradient. Not used in 3D mode."))..[[]
tooltip[value_max;]]..F(S("The highest noise value to be represented by the node color gradient."))..[[]
tooltip[autocolor;]]..F(S("Set the low, mid and high color values automatically according to the theoretical noise value boundaries."))..[[]
field_close_on_enter[value_min;false]
field_close_on_enter[value_mid;false]
field_close_on_enter[value_min;false]
field_close_on_enter[value_max;false]
container_end[]