| Time |
Nick |
Message |
| 02:37 |
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[MatrxMT] joined #luanti-dev |
| 03:39 |
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| 04:00 |
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MTDiscord joined #luanti-dev |
| 05:30 |
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| 08:57 |
sfan5 |
merging #17614, #17615, #17602, #17595 in 15m |
| 08:57 |
ShadowBot |
https://github.com/luanti-org/luanti/issues/17614 -- Verify paths passed to `load_schematic` with `CHECK_SECURE_PATH` by user333dev |
| 08:57 |
ShadowBot |
https://github.com/luanti-org/luanti/issues/17615 -- [don't squash] Some refactoring + Lua CLI proof of concept by sfan5 |
| 08:57 |
ShadowBot |
https://github.com/luanti-org/luanti/issues/17602 -- Use texture pack name from conf when present by ZenonSeth |
| 08:57 |
ShadowBot |
https://github.com/luanti-org/luanti/issues/17595 -- Fix light for liquid source faces below solid nodes by Desour |
| 08:58 |
sfan5 |
uhh I'm not merging #17615 of course. meant #17582 |
| 08:58 |
ShadowBot |
https://github.com/luanti-org/luanti/issues/17615 -- [don't squash] Some refactoring + Lua CLI proof of concept by sfan5 |
| 08:58 |
ShadowBot |
https://github.com/luanti-org/luanti/issues/17582 -- [no sq] Update Android stuff and other fixes by sfan5 |
| 09:27 |
[MatrxMT] |
<Zughy> Ping sfan5 |
| 09:29 |
sfan5 |
pong |
| 15:19 |
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jstein joined #luanti-dev |
| 17:28 |
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Panquesito7 joined #luanti-dev |
| 19:37 |
sfan5 |
it tried to implement a new collision feature and got stuck with a hard to solve backwards-compatibility problem. also my code doesn't even work. |
| 19:37 |
sfan5 |
s/^it/I/ |
| 19:38 |
Krock |
welcome to physics |
| 19:38 |
MTDiscord |
<luatic> oh hi Krock |
| 19:38 |
Krock |
been there, was hurt. |
| 19:38 |
Krock |
hello @luatic |
| 19:38 |
MTDiscord |
<luatic> i'm thinking we should try to move to strictly linear interpolation with smaller dtimes |
| 19:39 |
MTDiscord |
<paradust> new collision feature? |
| 19:39 |
MTDiscord |
<luatic> this will require optimizing the physics step, but it should be highly parallelizable |
| 19:40 |
Krock |
The current physics are already quite good. Executing it on "best possible" dtime intervals seems to be the largest challenge |
| 19:41 |
MTDiscord |
<luatic> commented on #17612 re possibility of too small dtime steps |
| 19:41 |
ShadowBot |
https://github.com/luanti-org/luanti/issues/17612 -- Collision: Run parabola movement in two iterations by SmallJoker |
| 19:42 |
MTDiscord |
<luatic> Krock: mhm i don't think the current physics are good in comparison to what dedicated physics engines offer |
| 19:42 |
MTDiscord |
<luatic> quite honestly we don't have much physics except for SUVAT and AABB collisions at all |
| 19:43 |
MTDiscord |
<luatic> proper physics means more colliders for example |
| 19:43 |
MTDiscord |
<luatic> a concept of mass, of forces, of energy and of collisions actually resulting in changes to velocity beyond "an axis gets zero'd" |
| 19:43 |
MTDiscord |
<luatic> also rotational velocity, for example |
| 19:43 |
Krock |
the client code did steps of 0.1 * BS or so, which introduced such precision issues |
| 19:44 |
Krock |
ah still. > f32 position_max_increment = 0.1*BS; |
| 19:44 |
MTDiscord |
<luatic> Krock: my worry is that if you have a peak very close to the start or end of the interval, you can get an arbitrarily small "epsilon-step" |
| 19:45 |
MTDiscord |
<.zenonseth> there was an issue a while back about this, iirc, and i left comments - but i personally think adding a sphere collider, without adding mass, forces, energy, etc is doable, and can result in sliding/slip by on abitrary axis of collision somewhat easily |
| 19:45 |
MTDiscord |
<luatic> say the parabola peaks at dt=1e-7, the proposed change will issue a collisionMoveSimple with that dt then which might be a problem |
| 19:45 |
Krock |
extreme cases already filtered out with the stupid simple (acceleration * speed < -0.1f), where I could raise the bar a bit |
| 19:45 |
Krock |
it might be a problem for 1% of the simulation steps, which I do honestly not consider a problem |
| 19:46 |
MTDiscord |
<luatic> Zenon Seth: absolutely, these issues can be solved somewhat independently, and it makes sense to approach it like that. |
| 19:46 |
MTDiscord |
<luatic> though personally i don't care as much about spheres as i care about boxes and triangles ;) |
| 19:47 |
sfan5 |
does anyone have any thoughts on introducing collision groups so that objects can choose to collide with? |
| 19:48 |
MTDiscord |
<luatic> it's a good feature, didn't we have an issue for that? |
| 19:48 |
sfan5 |
I wanted to make a set_properties({collide_with_players=false}) work but it basically boils down to this |
| 19:48 |
sfan5 |
dunno |
| 19:48 |
MTDiscord |
<luatic> i'm pretty sure someone linked how godot does it in some issue |
| 19:49 |
sfan5 |
https://github.com/godotengine/godot/issues/7793 I suppose |
| 19:50 |
sfan5 |
...which is pretty much exactly what chatgpt suggested ... and I then tried to implement but got some detail wrong |
| 19:51 |
MTDiscord |
<.zenonseth> er tangentially related btw but a while back (so its out of date) I wasted like 4 hours with claude making summaries of all issues: - Summaries: https://contentdb.milcho.org/misc/all_summaries.md - And high confidence duplicates: https://contentdb.milcho.org/misc/verified_high_confidence.md |
| 19:58 |
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k327- joined #luanti-dev |
| 19:59 |
k327- |
my server (luplay.k327.eu:30000) has had issues with being temporarily online on the server list for a while, getting a 409 error from servers.luanti.org/announce in the logs, but today that's been happening non-stop since 7 hours and still going on. I asked about it on the matrix room and got redirected by wsor to ask sfan5 here on irc |
| 20:00 |
k327- |
offline* |
| 20:00 |
sfan5 |
well, did you read the error messagE? |
| 20:01 |
sfan5 |
because it should say what the problem is |
| 20:02 |
k327- |
HTTPFetch for https://servers.luanti.org/announce returned response code 409 |
| 20:02 |
k327- |
Response body: |
| 20:02 |
k327- |
Request has been filed, but the previous one encountered an error: |
| 20:02 |
k327- |
Server luplay.k327.eu port 30000 did not respond to ping (tried 212.127.78.214) |
| 20:03 |
Krock |
@.zenonseth It seems the AI is also a little bit drunk in some places "- #6527 - Move interact code from game.cpp to an own file" |
| 20:03 |
ShadowBot |
https://github.com/luanti-org/luanti/issues/6527 -- Formspec replacement |
| 20:04 |
sfan5 |
k327-: yes. did you ensure that your server is reachable on this IP and port? |
| 20:05 |
k327- |
yes, you can even try joining it yourself |
| 20:06 |
MTDiscord |
<.zenonseth> Krock: possibly, i ran it with the intention of finding duplicates, I have a much much longer jsonl (~2mb) with all summaries of first posy budy which could also be used for finding duplicates or seraching |
| 20:06 |
MTDiscord |
<wsor4035> lol, it doesnt work |
| 20:07 |
MTDiscord |
<wsor4035> my bad for assuming you actually checked |
| 22:02 |
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k327- joined #luanti-dev |
| 22:28 |
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panwolfram joined #luanti-dev |
