| Time |
Nick |
Message |
| 00:20 |
OldCoder |
Someday Sapier will come, of this I am sure, Until this blessed fay, We all must endure |
| 00:21 |
OldCoder |
Fain would I with Sapier speak, This marvelous boon I seek, Network or animals code, Must I for Saper wait in my abobe |
| 00:21 |
OldCoder |
:P |
| 00:21 |
OldCoder |
* day |
| 00:40 |
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| 01:13 |
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| 01:16 |
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| 01:17 |
ShadowNinja |
Sokomine: git fetch --tags |
| 01:23 |
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| 01:35 |
ShadowNinja |
OldCoder: Sapier still comes on IRC, he just doesn't have this channel on auto-join. Try checking `/ison sapier` every once in a while, he was last on 11 hours ago. |
| 01:37 |
ShadowNinja |
kahrl: I don't see any security issues with that (Unless you can modify the environment, in which case your system is already exploited). |
| 01:38 |
ShadowNinja |
I'm not a security specialist or anything like that though. |
| 01:40 |
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| 01:41 |
paramat |
hmmmm, help ` |
| 01:41 |
paramat |
= |
| 01:42 |
paramat |
`=P |
| 01:44 |
paramat |
could you take a quick look at my code? links and bug info are here https://forum.minetest.net/viewtopic.php?p=158982#p158982 |
| 02:00 |
Sokomine |
ShadowNinja: thanks. i somehow had managed to get a second repro entangled. once i removed that, the version number increased as desired |
| 02:02 |
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| 02:06 |
hmmmm |
paramat, that's because the new noise is lacking the 'absolute value' option |
| 02:06 |
paramat |
i've missed a math.abs(noise) somewhere? |
| 02:06 |
hmmmm |
i personally removed it because it simply wasn't used anymore, but that doesn't mean that it's useless |
| 02:07 |
hmmmm |
you didn't miss it, it's that the current noise implementation is lacking it |
| 02:07 |
paramat |
the original code defined abs(noise) but didn't seem to use it |
| 02:08 |
hmmmm |
??? I thought the original mapgen v5 used absolute value noise for caves |
| 02:08 |
paramat |
ah hm ... |
| 02:08 |
hmmmm |
did it not? |
| 02:08 |
paramat |
ah it uses 'contour' |
| 02:08 |
hmmmm |
it's very different |
| 02:08 |
hmmmm |
and requires adding more stuff to noise.cpp |
| 02:09 |
paramat |
which i kept. and one uses 'flip YZ' which seems pointless |
| 02:09 |
* hmmmm |
scratches head |
| 02:09 |
hmmmm |
could you show me the code that you're basing this mapgen v5 on? |
| 02:09 |
paramat |
yes ... |
| 02:10 |
paramat |
https://github.com/celeron55/minetest/commits/mgv5 last 3 commits |
| 02:10 |
paramat |
i'm guessing this is a simple silly mistake, because it is very close to working |
| 02:10 |
OldCoder |
http://minetest.org/141019-network.txt |
| 02:11 |
OldCoder |
patch eventually to be submitted for upstream ^ |
| 02:11 |
paramat |
it's just the terrain is all low smooth rolling hills |
| 02:11 |
OldCoder |
Without the patch, MT is vulnerable to massive lockups |
| 02:12 |
* OldCoder |
spent 1.5 weeks on this patch |
| 02:17 |
paramat |
hmmmm, i also integrated 'add dirt/sand/gravel/lava blobs' into the base terran loop for simplicity, there was no point having 2 separate passes of the data |
| 02:17 |
paramat |
*terrain |
| 02:18 |
hmmmm |
welll |
| 02:19 |
hmmmm |
the structure of a mapgen is now supposed to be on first pass, write only air, water, and stone |
| 02:19 |
hmmmm |
the air is a marker for air, the water is a marker for that biome's liquid, and the stone is a marker for the actual ground terrain |
| 02:19 |
paramat |
ah okay i can change it back |
| 02:19 |
hmmmm |
in mapgen v7, at least, there are specific references to those three contents |
| 02:19 |
hmmmm |
i believe, anyway. |
| 02:19 |
hmmmm |
it might be safe, i'm not sure |
| 02:20 |
paramat |
that might solve the problem, since that's when the problem appeared |
| 02:20 |
Zeno` |
ShadowNinja, is the change keys dialog not closing with escape like all the other dialogs intended or a bug? |
| 02:20 |
hmmmm |
that would in theory have nothing to do with the shape of the generated terrain, though |
| 02:21 |
hmmmm |
paramat, are you sure the contour works the way you think it does? :)... |
| 02:21 |
hmmmm |
you need to do that call per octave |
| 02:21 |
paramat |
per octave ... ah |
| 02:21 |
hmmmm |
this is going to require modifications to noise.cpp for sure; I'm going to have to add new noise params |
| 02:21 |
hmmmm |
do you mind holding off until I do that |
| 02:21 |
paramat |
no problem |
| 02:23 |
paramat |
the code didn't suggest per octave, it just fed noise values into that contour function |
| 02:24 |
paramat |
(however this is v.probably my error) |
| 02:26 |
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| 02:29 |
paramat |
i'll continue to try to get this working, since the terrain height bug seems separate from the contour/caves bug. thanks for the help |
| 02:30 |
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| 02:52 |
paramat |
ah there's actually a 'float contour(float v)' already in noise.cpp |
| 02:57 |
hmmmm |
oh you're right |
| 02:57 |
hmmmm |
hrmmmmmm |
| 02:58 |
hmmmm |
okay, so the only type of noise where the modification is applied per octave seems to be absolute noise |
| 02:58 |
hmmmm |
what the hell is the point of contour exactly? the world may never know |
| 02:59 |
paramat |
seems a good idea, folding over the signal that goes past 1 |
| 02:59 |
hmmmm |
so, basic perlin noise has a gaussian distribution |
| 02:59 |
paramat |
so contour limits noise to 0-1 but 'folds over' the information that would otherwise get lost |
| 03:03 |
hmmmm |
the max value of perlin_noise2d(seed, x, y, octaves, persistence) == sum(n = 0..octaves-1, persistence^n) so for example, 1 + .6 + .6^2 + .6^3 = 2.176 for octaves = 4 and persistence = 0.6 |
| 03:04 |
paramat |
yes |
| 03:04 |
hmmmm |
if you wanted to make that all positive, what you'd do is add half that max value to it and divide by 2 |
| 03:04 |
hmmmm |
in fact I do this sort of operation implicitly in the noise params in several mapgen v7 noises |
| 03:04 |
paramat |
yes i noticed that |
| 03:05 |
hmmmm |
so it ranges from -2.176 to 2.176, add the max as the offset, and then set the factor to 0.5 |
| 03:05 |
hmmmm |
that way you get a gaussian distribution from 0 to 2.176 |
| 03:05 |
hmmmm |
what contour does on the other hand is... |
| 03:06 |
hmmmm |
so let's say your noise is -2.176; then it'd be greater than 1.0, so it'd be 0 |
| 03:06 |
hmmmm |
sorry I'm just trying to visualize a graph of this function in my head |
| 03:07 |
hmmmm |
so contour is like this: |
| 03:07 |
hmmmm |
_____/\_____ |
| 03:07 |
hmmmm |
-...... -1.0, 0, 1.0, .... + |
| 03:08 |
hmmmm |
how would a gaussian distribution look after being transformed by that |
| 03:08 |
hmmmm |
grr if I had matlab installed on this computer... |
| 03:17 |
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| 03:17 |
paramat |
in the meantime i might start a simple mgv8 so i have at least one core mapgen working. MT is getting a lot of interest recently, it needs a variety of mind-blowing core mapgens |
| 03:17 |
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| 03:17 |
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| 03:17 |
hmmmm |
i don't know. hrm, i'll have to take a better look at this |
| 03:19 |
paramat |
no problem, i'll work on it |
| 03:38 |
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| 04:07 |
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| 07:18 |
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| 07:27 |
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| 07:33 |
paramat |
mgv5 is now working with new faster noise code https://github.com/paramat/minetest/commits/mgv5 the problem is 'noise scale' set in params is being ignored and always set to 1 instead. temporary fix is by multiplying noise value in the code |
| 07:34 |
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| 07:35 |
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| 07:45 |
Zeno` |
OpenAL has unfixable mem leaks? |
| 07:46 |
Zeno` |
I'm going to have to create a suppression file at this rate |
| 07:48 |
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| 07:50 |
rubenwardy |
celeron55, what to do about thumbnails on minetest.net? Images link to, say, http://www.minetest.net/_media/screen2.png?w=200, but the width of that image isn't 200 px |
| 07:52 |
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| 08:11 |
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| 08:15 |
paramat |
https://cdn.mediacru.sh/WTYIuHJld6V5.png |
| 09:10 |
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| 09:16 |
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| 09:41 |
Zeno` |
rubenwardy: In reference to reference arguments not being able to be optional I am assuming that you're referring to https://github.com/rubenwardy/minetest/commit/24a7cb008867d61f30c398ebe311cc6b441ea7b9#diff-2d01836e6c0329cf2b516efb9b407661R112 ? |
| 09:43 |
Zeno` |
Two things (and these may be just my opinion)... a) I don't think that should be passed by reference anyway, but passed as a pointer (mainly because it's being modified in the function and passing a reference kind of hides that). b) If it were a pointer then the argument could be optional without overloading by passing NULL and checking that error != NULL... you could even make the default value for that argument NULL |
| 09:44 |
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| 13:38 |
kahrl |
what? no celebrations for having >100 open pull requests? |
| 13:44 |
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| 13:46 |
Zeno` |
yeah, I celebrated |
| 13:47 |
Zeno` |
By celebrated I really mean I have booked an appointment with my psychiatrist |
| 13:48 |
shadowzone |
Huh? |
| 13:48 |
Zeno` |
kahrl, WIP: https://github.com/Zeno-/minetest/tree/refactor_the_game |
| 13:48 |
Zeno` |
also, meshes seem to be leaking? |
| 13:49 |
kahrl |
if something is leaking, go to a plumber not a psychiatrist :P |
| 13:49 |
Zeno` |
yeah, but I get confused as to who does who |
| 13:50 |
shadowzone |
kahrl: lol |
| 13:50 |
kahrl |
I like the refactoring |
| 13:51 |
Zeno` |
kahrl, it'll take me another 3 days to get it where I want it most likely |
| 13:51 |
Zeno` |
maybe 8 days.... who knows |
| 13:52 |
shadowzone |
Zeno`, good luck. |
| 13:52 |
Zeno` |
surprisingly it's already faster |
| 13:53 |
Zeno` |
maybe less cache misses... not sure, will look at cachegrind tomorrow |
| 13:53 |
Zeno` |
s/less/fewer |
| 13:53 |
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| 13:56 |
Zeno` |
thanks shadowzone |
| 13:56 |
shadowzone |
:) |
| 14:05 |
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| 14:10 |
kahrl |
Zeno`, fix incoming |
| 14:10 |
Zeno` |
fix? /me panics |
| 14:11 |
kahrl |
lol |
| 14:11 |
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| 14:15 |
Zeno` |
ahh thanks :) |
| 14:16 |
Zeno` |
now I can be (more) sure I'm not creating more issue |
| 14:16 |
Zeno` |
s |
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| 16:18 |
OldCoder |
Suggestion for future: Portal or API to jump as seamlessly as possible from one world (server) to another. |
| 16:18 |
OldCoder |
For example, one could travel from the Moon in Moontest to perhaps Jupitertest |
| 16:19 |
OldCoder |
Or Lord of the Test to Cimmeriatest |
| 16:19 |
OldCoder |
|
| 16:19 |
sol_invictus |
is anyone else getting segfault in HEAD (on client)? |
| 16:26 |
PenguinDad |
sol_invictus: yes but randomly |
| 16:27 |
sol_invictus |
right now I'm getting it soon after joining |
| 16:28 |
sol_invictus |
some of last two commits are to blame |
| 16:29 |
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| 16:46 |
RealBadAngel |
hi |
| 16:50 |
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| 16:52 |
kahrl |
sol_invictus: works for me |
| 16:52 |
kahrl |
unless you mean the OnPostRender crash that happens very rarely right when clicking the Play or Connect button |
| 16:53 |
sol_invictus |
no, it's new |
| 16:53 |
sol_invictus |
I'm gonna try getting bt |
| 16:56 |
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| 17:08 |
sol_invictus |
okay, false alarm; did clean and it's fine now |
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| 18:26 |
RiZom-91 |
Hi everyone! https://github.com/minetest/minetest/pull/1752 |
| 18:26 |
RiZom-91 |
thx to Calinou and RealBadAngel for the help =) |
| 18:27 |
RiZom-91 |
It seems to work in game (my mob can see me through glass blocks) |
| 18:33 |
Calinou |
cool |
| 18:42 |
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