Commit graph

24 commits

Author SHA1 Message Date
1310dae884
Refactor: Split up terrain.lua, make subtable wea.terrain
This is just the start, if my plans work out.

The eventual aim here is to implement a generic Heightmap2D class, just 
like Vector3.

This will make interacting with heightmaps much easier.
2021-12-31 02:42:32 +00:00
db5d25d1de
//convolve: update matrix & kernel to use Vector3
A lot of the maths remains in the old style, but at least it doesn't 
take a zero-indexed table
2021-12-28 18:31:46 +00:00
c6bae3b7e0
//erode river: fix redefining i in nested loop 2021-07-30 19:44:02 +01:00
ecb846fcfe
//erode river: fix undefined global variable 2021-07-30 18:03:39 +01:00
fa2c0642c1
Fix typo in comment 2021-07-18 20:11:10 +01:00
db7b20d485
Refactor table functions into subtable of wea
Also, you can return a value from dofile()!!!!

This changes everything.
2021-06-28 00:56:29 +01:00
9b53b73bc9
//erode river: Update docs,rename some parameters for consistency 2021-05-30 02:09:52 +01:00
74bde4e60c
//erode river: comment debug
...we might need them again in the future
2021-05-30 01:44:00 +01:00
ccf27c8629
Bugfix new //erode river implementation
next stop: docs!
2021-05-30 01:42:06 +01:00
00a60eba17
//erode → river: Change only 1 height at a time for extra granularity
this also simplifies it a bit too
2021-05-30 00:04:01 +01:00
9ecdd01914
//erode: initial river algorithm implementation 2021-05-30 00:02:21 +01:00
17b8f8a555
erode/snowballs: correct comment 2021-05-29 23:20:34 +01:00
87b7254350
erode: add future comment 2021-05-22 02:36:56 +01:00
75a5f14f01
//erode snowballs: Fix assignment to global variable; slightly refactor changelog
Sincce we've got a number of bugfixes here and the changelog is getting 
a bit longer, I've split bugfixes up.
2021-05-22 01:39:59 +01:00
8877e356f0
refactor: refactor utils/strings.lua into multiple files 2021-03-20 01:48:56 +00:00
56380f149b
heightmap_size: refactor to use { x, z } instead of [0] / [1] 2021-02-26 02:20:53 +00:00
39103a046f
//maze: fix some areas of generated mazes not being explored 2020-09-28 01:30:15 +01:00
b303f8758a
//erode snowballs: make tweaks & add new noconv param 2020-08-21 22:01:24 +01:00
07588e0940
erode/snowballs: Add comment 2020-08-21 21:00:45 +01:00
fd5804dd9c
//erode: Finish the initial round of bugfixing, but I'm on the fence about it.
Specifically, I'm unsure about whether I'm happy with the effects of the 
algorithm.
Also, we convolve with a 3x3 gaussian kernel after erosion is complete - 
and we have verified that the erosion is having an positive effect at 
"roughening up" a terrain surface.
It seems like the initial blog post was correct: the algorithm does tend 
to make steep surfaces steeper.
It also appears that it's more effective on larger areas, and 'gentler' 
curves. THis might be because the surface normals are more conducive to 
making the snowballs roll.
Finally, we need to decide whether we want to keep the precomputed 
normals as we have now, or whether we want to dynamically compute them 
at the some of request.
2020-08-21 20:59:50 +01:00
997eb4d101
fix all the crashes with the new erosion algorithm
......but it doesn't look like it's functioning as intended just yet
2020-08-21 15:21:10 +01:00
acb288b984
Fix a ton of bugs but there are lots more to go..... 2020-08-21 13:27:40 +01:00
cdba38d37d
Start implementing snowball erosion algorithm.
There's still a long way to go - we're only just getting warmed up!
2020-08-20 01:53:26 +01:00
20ccf321ce
Start setting things out to implement erosion
First up, we're going to attempt to implement a snowballs-based 
algorithm.
Reference: https://jobtalle.com/simulating_hydraulic_erosion.html
2020-08-18 02:11:37 +01:00