Gael-de-Sailly
4edd1a946e
Horizontal shifting according to 3D noises:
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makes slopes more irregular and natural-looking, allows overhanging.
This is done by generating an intermediate 2D elevation map and, for each node in 3D, add a 2D offset vector to the position, and seek this position on the heightmap.
2020-05-23 15:52:16 +02:00
Gael-de-Sailly
f56857e804
Fix water not being set at lower chunk borders
2020-05-08 10:02:04 +02:00
Gael-de-Sailly
a73a0dd80b
Avoid some redundant calculation on corners
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(not very significant, but why not)
2020-04-27 21:08:15 +02:00
Gael-de-Sailly
a9ab0e53d3
Change folder structure: data files are now in a directory.
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Also added a demo 400x400 map, that is overriden on pre-processing.
2020-04-26 23:29:36 +02:00
Gaël de Sailly
b429b302e1
Rewritten part of code to calculate river depth
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Fixes bathymetry problems on turns or confluences, as well as abrupt riverbanks.
2020-04-26 22:19:05 +02:00
Gael-de-Sailly
cd4b517585
terrain_rivers.py: mapsize is now the number of intervals
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instead of the number of nodes.
2020-04-26 19:51:21 +02:00
Gael-de-Sailly
cd90a21df4
Enhanced visualization code to display colormaps, and reuse the same code for initial and further viewing, in view_map.py
2020-04-26 18:30:29 +02:00
Gael-de-Sailly
206c68813e
Switch again to using river direction and flux instead of table of bounds
2020-04-26 18:10:23 +02:00
Gael-de-Sailly
6af6795d90
Comment and clarify
2020-04-26 17:13:38 +02:00
Gael-de-Sailly
49bc397718
Fix parameters for Simplex noise, to make sure the last octave has not a greater scale than 1
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Also use a 401x401 grid instead of 400, so that there are 400 intervals
2020-04-26 16:52:40 +02:00
Gael-de-Sailly
9700e948b9
Position should be strictly beyond river threshold to be a river
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Prevents some wrongly placed water pixels.
2020-04-14 21:54:05 +02:00
Gael-de-Sailly
55725ad94b
Re-organized the code. All polygon-related calculations go to polygons.lua.
2020-04-14 21:11:54 +02:00
Gael-de-Sailly
43211fc31b
Removed useless functions get_point_location and geometry.area
2020-04-14 20:26:15 +02:00
Gael-de-Sailly
14163681cc
Use settings from minetest.conf
2020-04-14 18:40:51 +02:00
Gael-de-Sailly
af7a7ce26d
Compress data files (reduces size by a factor 3-4)
2020-04-13 15:59:34 +02:00
Gael-de-Sailly
da98a538bb
Draw outer corners of river turns.
2020-04-13 15:01:54 +02:00
Gael-de-Sailly
b5db63d267
Re-added river flow data because needed for map preview
2020-04-13 15:01:44 +02:00
Gael-de-Sailly
1adb4fbece
Added an offset of 0.5 on terrain elevation
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This prevents rounding errors and improves interpolation on nearly flat areas
2020-04-13 12:27:24 +02:00
Gael-de-Sailly
13d3e70b66
Implemented variable river width.
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Also changed the river data exported by terrain_rivers.py. They will not be compatible with what's generated by older versions.
2020-04-13 12:15:10 +02:00
Gael-de-Sailly
4b63ed371e
Add more information in the polygon table
2020-04-13 10:31:38 +02:00
Gael-de-Sailly
eba90803fe
Removed useless debug print
2020-04-13 10:01:23 +02:00
Gael-de-Sailly
34de4269ee
Add directly a reference to the polygon table in the polygon list, instead of adding an index
2020-04-13 09:54:04 +02:00
Gael-de-Sailly
4e8288afbe
Added screenshot in README
2020-04-13 09:27:41 +02:00
Gael-de-Sailly
56cebecb13
More robust and faster code for grid twisting on the Lua side.
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At chunkgen init, build a list of the polygons instead of calculating them for every node.
2020-04-13 09:27:41 +02:00
Gael-de-Sailly
b7c6f71635
Implemented grid twisting. Still many possible bugs, potentially clumsy implementation, but it seems to work.
2020-04-13 09:27:41 +02:00
Gael-de-Sailly
6314117642
Added bounds.py: twists the grid as if the rivers were elastic bounds. Unused for now.
2020-04-13 09:27:41 +02:00
Gael-de-Sailly
ed34dec4fa
Adjust number of octaves in function of map size
2020-04-12 17:26:37 +02:00
Gael-de-Sailly
538bfb6d6d
Added script to view map, using matplotlib
2020-04-12 16:44:29 +02:00
Gael-de-Sailly
ecba126983
Add a small random number to DEM when calculating flow direction, to smooth flat areas
2020-04-11 14:27:56 +02:00
Gael-de-Sailly
8b78f6c5b4
Implemented isostatic rebound: loss of weight due to erosion will compensate at regional scale
2020-04-10 19:37:27 +02:00
Gael-de-Sailly
6752ffa91d
Added README
2020-04-10 17:29:32 +02:00
Gael-de-Sailly
0bf351b2f6
Initial commit: working example using a basis of Simplex noise and implementing river flowing, lakes, and erosion
2020-04-09 21:15:41 +02:00
