Space Engineers

Space Engineers

Atmospheric Drag & Re-Entry Effects
comfyfutons  [developer] 10 Dec, 2015 @ 4:55am
Thoughts, Requests, and Bugs discussion
Once you have tested the mod please let me know what you think and if you find anything wrong with it.
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Showing 1-15 of 49 comments
VeryDead 11 Dec, 2015 @ 4:23pm 
This is most likely intended (as wheels are different grids to the main ship), but if you attach wheels to a ship (for landing if you're using Digi's wings mod, or for multipurpose craft) it will increase the already-present acceleration drag to a ridiculous level. If it's possible for the drag force for wheels to be applied to the ship with the wheel suspension instead of the wheels themselves, this would solve the problem.
Last edited by VeryDead; 11 Dec, 2015 @ 4:28pm
comfyfutons  [developer] 11 Dec, 2015 @ 6:04pm 
@Meta_K It will not fix it to apply the force to the main grid because the problem is that the surface area algorithm might not calculate the surface area correctly in this specific scenario. I did not think about multiple connected grids this when designing the way my surface area algorithm works so I'll think about how I can fix this.

Thanks so much for the observation and comment.
comfyfutons  [developer] 11 Dec, 2015 @ 8:07pm 
@Meta_K I believe I fixed wheels or at least it worked in my testing after my latest change.
Last edited by comfyfutons; 11 Dec, 2015 @ 8:08pm
Ludwichs 12 Dec, 2015 @ 12:21pm 
I don't know if you knew, but there is a line in the source in MyFakes.cs that says:
ENABLE_ATMOSPHERIC_ENTRYEFFECT = false
If you really add visual effects, Keen might beat you to it. Just something I thought you might want to know.

comfyfutons  [developer] 12 Dec, 2015 @ 12:54pm 
@Sebastitan Thanks for the heads up... I've heard particle effects aren't moddable right now anyway so in that case keen will deffinately beat me to it =)
Last edited by comfyfutons; 12 Dec, 2015 @ 12:55pm
Calzone 13 Dec, 2015 @ 8:09am 
Perhaps... maybe a heat shield block can be implemented so you can take much less damage from drag (Most likely will be needed if drag will do damage to blocks)
comfyfutons  [developer] 13 Dec, 2015 @ 8:13am 
@hybrid Most likely heavy armor will be immune to compression heating damage... I'm a fan vanilla with few important mods and dont want to add lots of new fluff to the game and I think they will perform that role very well reused in that role.
Last edited by comfyfutons; 13 Dec, 2015 @ 8:14am
Fallegon 13 Dec, 2015 @ 8:28am 
Hey this is a sweet mod. I'm so glad this finally hit SE. In my opinion it will make this game more balanced. I dont know if you want these numbers or not but i did some tests with some of my ww2 aircraft and I immediatly noticed a difference. However I think the friction is a little too high in my opinion. Here are the number compaired to real life if this means anything to you.

The mustang P-51 repllica only made it to a top speed of 300 mk\h - 186mph.
a real Mustang will top speed at 400mph

The B-25j Mitchell replica toped out at 100m\s -223mph
a reall B-25j will top speed at 272 mph

Granite the power to weight ratio is going to be a little scewed due to the 1 size engine I have to use. Also I dont know if you have less drag on angled blocks or if it consideres all block the same amount of drag.
Last edited by Fallegon; 13 Dec, 2015 @ 8:28am
DoctorPC 13 Dec, 2015 @ 9:32am 
Hello! I am absolutely loving the mod, however, I am having an issue with it. On my dedicated server, the mod seems to be inactive. Is this by intention? Considering the amount of talk you have about multiplayer, I find dedicated server compatability fair to be expected.Thanks! :)
comfyfutons  [developer] 13 Dec, 2015 @ 10:52am 
@DoctorPC I have not tested on a server yet. It works when joining friend's games but I deffinately would like it to work on dedicated servers too and wasn't aware that it did not. Can I join your server for testing?
comfyfutons  [developer] 13 Dec, 2015 @ 11:01am 
@fallegon Speeds are intentionally scaled down from what is acieveable in real life because the scale of almost everything in this game is also scaled down... I recommend the 500m/s speed mod because anything more and the physics start to decay quickly. So if you were using the 500m/s mod and you could reach close to those speeds on the planet then you would have no reason to go into space to travel quickly arond the planet.
Phantom Xavier 13 Dec, 2015 @ 1:43pm 
I have an issue with this mod and my private multiplayer game. I'm not sure if its my connectivity to my friend or what, but it seems that with this mod on he is dying in random places and at random times while using his jetpack on planets. I have turned the mod off for our survival game and he hasnt succumbed to any random deaths since. Is this an issue with connectivity or does this mod not play well with multiplayer in general? Is there a fix on my side? Any help would be appreciated. I have no other mods for physics besides 256 L and 460 S speed mods. He hasnt exceeded the speeds and he's died at even 10 m/s using his jetpack. All my other mods are block mods/skins/gestures/respawnships.
comfyfutons  [developer] 13 Dec, 2015 @ 2:10pm 
@Phantom Xavier I have not experienced this when having people join my game or joining other people's games. I know that there are issues with planets where when simulation speed drops and it gets laggy then characters start taking damage randomly because the game thinks you hit a wall too hard... My mod might cause this if there are a large number of moving ships or a very large ship moving in an atmosphere and it makes the game lag then as a result of the lag you might hit walls too fast. Press shift + f11 and it should bring up a menu that displays lot of stats... what does it say your simulation speed is?
Last edited by comfyfutons; 13 Dec, 2015 @ 2:11pm
DoctorPC 13 Dec, 2015 @ 3:15pm 
@comfyfutons Sure, here you go: 62.67.42.156:27065
Fallegon 13 Dec, 2015 @ 8:44pm 
Right.. and I am using a 400 m/s speed mod but I still cant reach anyting thats accurate to the aircraft Im replicating. Either the drag is too high or the engines dont provide enough power to gain the proper speed. I posted those number to see if you wanted to scale your drag equation down to the games power limits or simply just say the engines will never be powerful enough, get another mod for that.

Also I dont think you mentioned anything on the angle of the block or if that is possible to accommodate for. Anyway just wondering, It would be kool if aerodynamics made a difference instead of just for aesthetics.

(side note) I was doing more tests with top speed and whatnot. Since most of my planes use landing gear or rotors and have multiple grids I did a few test flights where I detached all other grids and had the same results as before.
Last edited by Fallegon; 13 Dec, 2015 @ 9:21pm
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