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Real-Time Body Physics (DirectX 11)

CPVC

By CPVC,
in Downloads - The Sims 4

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CPVC

CPVC

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On 1/6/2026 at 12:00 PM, catk1775 said:

so this is the only logs i could find for this crash. i realized that the directx 9 version is now considered legacy but its far for more stable the dx11(probably more of an issue with the directx version of the game than your mod) for my heavy modded game. i dont know why this happens but its been happening alot. the mod is functional until this happens, when your mod does produce its own error message it'll allow me to still save and looks functional. i do have other crash logs from the event viewer pointing to d3d9.dll. i played sims years ago when it was far more stable with your mod install. i cant say for certain if other mods are doing it. i do have better exceptions install but i fixed the issues it was complaining about so it stopped alerting me to issues. i can play for several hours some times before this happens sometimes its only less than an hour. i did try to keep any personal info out of the the screenshots

Screenshot 2026-01-06 124635.png

Screenshot 2026-01-06 124735.png

Screenshot 2026-01-06 124743.png

 

So no RTBP log was generated? That'll be in "...\Documents\Electronic Arts\The Sims 4\RTBP\Log.txt" if it exists. Usually at the end of the log it'll write a stack trace of what went wrong. That's what I'd like to see.

 

RTBP isn't a traditional mod so the game won't report any issues with the mod in-game. Something like Better Exceptions won't help either. The only way for RTBP to report errors is through it's log file.

LeoTheImmortal

LeoTheImmortal

Posted
Posted
13 minutes ago, CPVC said:

 

So no RTBP log was generated? That'll be in "...\Documents\Electronic Arts\The Sims 4\RTBP\Log.txt" if it exists. Usually at the end of the log it'll write a stack trace of what went wrong. That's what I'd like to see.

 

RTBP isn't a traditional mod so the game won't report any issues with the mod in-game. Something like Better Exceptions won't help either. The only way for RTBP to report errors is through it's log file.

ohhhhh, this might be a crash log or its a close game log

Log.txt

Vel707

Vel707

Posted
Posted (edited)

For me unless i hit the test either x,y or z nothing happens during normal gameplay, i change the mass and nothing changes. I'm on DX11 and use reshade

 

Log.txt

Edited by Vel707
CPVC

CPVC

Posted
  • Author
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9 hours ago, catk1775 said:

ohhhhh, this might be a crash log or its a close game log

Log.txt 3 MB · 0 downloads

 

What the... An outside source is trying to connect to RTBP like it was a HTTP server:

  

[RTBP.INFO (CommandServer) 50:59.724] New command sent from client #23748: GET / HTTP/1.1

Host: 97.91.70.46:8008

User-Agent: cypex.ai/scanning Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) Chrome/126.0.0.0 Safari/537.36

Accept: */*

Accept-Encoding: gzip

 

Something sending unexpected data to RTBP could cause it to crash. Not sure what that's about. Antivirus? Later in the log it starts sending binary data.

 

50 minutes ago, Vel707 said:

For me unless i hit the test either x,y or z nothing happens during normal gameplay, i change the mass and nothing changes. I'm on DX11

Log.txt 81.71 kB · 1 download

 

Your initial distance limits are set pretty low. Try increasing them. To completely disable distance limiting, press "F11" to open the GUI, click the "Debug Flags" tab on the bottom left, check "disableDistLimits" in the list of debug flags.

Johnnykill

Johnnykill

Posted
Posted

I put everything according to the instructions. But nothing is working. Help!!!

[RTBP.DBUG 00:00:24.62 1] D3D11CreateDevice called:
    DriverType: Hardware
    Flags: 0
    FeatureLevels: 9
    SDKVersion: 7
    ppDevice? false
    ppImmediateContext? false
[RTBP.INFO 00:00:24.62 1] No usable custom D3D11 DLL found. Using system DLL

LeoTheImmortal

LeoTheImmortal

Posted
Posted (edited)
57 minutes ago, CPVC said:

 

What the... An outside source is trying to connect to RTBP like it was a HTTP server:

 

  

[RTBP.INFO (CommandServer) 50:59.724] New command sent from client #23748: GET / HTTP/1.1

Host: 97.91.70.46:8008

User-Agent: cypex.ai/scanning Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) Chrome/126.0.0.0 Safari/537.36

Accept: */*

Accept-Encoding: gzip

 

 

Something sending unexpected data to RTBP could cause it to crash. Not sure what that's about. Antivirus? Later in the log it starts sending binary data.

 

 

Your initial distance limits are set pretty low. Try increasing them. To completely disable distance limiting, press "F11" to open the GUI, click the "Debug Flags" tab on the bottom left, check "disableDistLimits" in the list of debug flags.

i only have windows security install. and if we're talking mozilla firefox i dont have that install

Edited by catk1775
HentaiGai

HentaiGai

Posted
Posted
15 hours ago, catk1775 said:

should be this one v0.4-p8 2024-04-12 should be latest? i'm not certain to be honest the files arent stamped with the file version in properties, could be the p9-e3 file
better exceptions has already been install before this issue
installing S4MM now.
switch out rtbp yesterday for the tonic's bouncing mod i didn't experience any crashes, but going to do more testing cause i know it has very weird crash intervals 

 

Ok, according to your log, you are using v0.4-p8. Try version v0.4-p9-e3 from the bottom of the post for RTBP here on LL

HentaiGai

HentaiGai

Posted
Posted
1 hour ago, CPVC said:

 

What the... An outside source is trying to connect to RTBP like it was a HTTP server:

 

  

[RTBP.INFO (CommandServer) 50:59.724] New command sent from client #23748: GET / HTTP/1.1

Host: 97.91.70.46:8008

User-Agent: cypex.ai/scanning Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) Chrome/126.0.0.0 Safari/537.36

Accept: */*

Accept-Encoding: gzip

 

 

Something sending unexpected data to RTBP could cause it to crash. Not sure what that's about. Antivirus? Later in the log it starts sending binary data.

 

 

Your initial distance limits are set pretty low. Try increasing them. To completely disable distance limiting, press "F11" to open the GUI, click the "Debug Flags" tab on the bottom left, check "disableDistLimits" in the list of debug flags.

 

 

That's not antivirus, the user-Agent is listed as "cypex.ai/scanning".

 

It looks like someone is hitting them with a port scanner trying to identify vulnerable ports. It might be a good idea to add a check to ensure all requests are coming from localhost and drop any external requests.

 

On the user end, if you have access to your router/firewall rules, you'll want to set up a rule to drop all requests from the IP "97.91.70.46" as that appears to be the only IP they are scanning from.

HentaiGai

HentaiGai

Posted
Posted
3 minutes ago, RealSiViX said:

 

 

That's not antivirus, the user-Agent is listed as "cypex.ai/scanning".

 

It looks like someone is hitting them with a port scanner trying to identify vulnerable ports. It might be a good idea to add a check to ensure all requests are coming from localhost and drop any external requests.

 

On the user end, if you have access to your router/firewall rules, you'll want to set up a rule to drop all requests from the IP "97.91.70.46" as that appears to be the only IP they are scanning from.

 

After a little more research, it appears cypex.ai is an independent cybersecurity research company who claim to specialize in "Predictive Threat Intelligence" through real-time global IP monitoring to "predict threats, identify malicious actors, and provide deep context on IP addresses, helping security teams automate defenses and gain insights beyond traditional tools. It offers predictive intelligence, detects threats hidden by VPNs/proxies, and centralizes data to simplify complex tasks for SOC analysts and CISOs, reducing reliance on fragmented tools"

LeoTheImmortal

LeoTheImmortal

Posted
Posted
11 hours ago, RealSiViX said:

 

 

That's not antivirus, the user-Agent is listed as "cypex.ai/scanning".

 

It looks like someone is hitting them with a port scanner trying to identify vulnerable ports. It might be a good idea to add a check to ensure all requests are coming from localhost and drop any external requests.

 

On the user end, if you have access to your router/firewall rules, you'll want to set up a rule to drop all requests from the IP "97.91.70.46" as that appears to be the only IP they are scanning from.

i think i have access to everything, i think its blocked now but uncertain, i'll test it out with the current update for d3x9

1
LeoTheImmortal

LeoTheImmortal

Posted
Posted
1 hour ago, catk1775 said:

i think i have access to everything, i think its blocked now but uncertain, i'll test it out with the current update for d3x9

did both fixes(d3d9.dll and firewall settings). might still be early in testing but seems to be holding, i think something is bugged with the ball physics(no crotch meshes/textures) in this update so i disabled them.

CPVC

CPVC

Posted
  • Author
Posted
16 hours ago, RealSiViX said:

 

After a little more research, it appears cypex.ai is an independent cybersecurity research company who claim to specialize in "Predictive Threat Intelligence" through real-time global IP monitoring to "predict threats, identify malicious actors, and provide deep context on IP addresses, helping security teams automate defenses and gain insights beyond traditional tools. It offers predictive intelligence, detects threats hidden by VPNs/proxies, and centralizes data to simplify complex tasks for SOC analysts and CISOs, reducing reliance on fragmented tools"

 

Ah, ok. Well, I fixed this right after I found out that RTBP was listening on all IPs. I don't know why I had it set to do that in the first place. I think this might have been from the early days when I was thinking about possibly developing RTBP on one PC and testing on another. Either that or I just assumed everyone would be behind a router. Anyway, I've fixed it. The next version of RTBP will listen on loopback only.

2
LeoTheImmortal

LeoTheImmortal

Posted
Posted
33 minutes ago, CPVC said:

 

Ah, ok. Well, I fixed this right after I found out that RTBP was listening on all IPs. I don't know why I had it set to do that in the first place. I think this might have been from the early days when I was thinking about possibly developing RTBP on one PC and testing on another. Either that or I just assumed everyone would be behind a router. Anyway, I've fixed it. The next version of RTBP will listen on loopback only.

will the update be included with directx 9 version of this tool?

CPVC

CPVC

Posted
  • Author
Posted
1 hour ago, catk1775 said:

crash with multiple popups, only crashed after i clicked the yes/okay button but was unplayable with the pop up forcing to go to desktop. this might be why i had the older version on

 

Log.txt 2.58 MB · 0 downloads

 

1 hour ago, catk1775 said:

will the update be included with directx 9 version of this tool?

 

I think I might know what's going on. Here try this one. I did include the server fix here, too. This build of RTBP will only listen on localhost.

RTBP v0.4-p9-e4 2026-01-08.zip

CPVC

CPVC

Posted
  • Author
Posted
On 1/8/2026 at 8:50 PM, LeoTheImmortal said:

had nothing to do with tabbing out

Screenshot 2026-01-08 214914.png

 

 

Hmmm... I'm not sure what the problem is exactly, but I did notice something interesting in your log:

  

[RTBP.DBUG (Direct3DCreate9) 00:00:4.25] Direct3D 11.1 is supported on this machine

 

Looks like your machine can handle the DirectX 11 version of RTBP. Maybe try that and see if it is more stable?

LeoTheImmortal

LeoTheImmortal

Posted
Posted
10 hours ago, CPVC said:

 

 

Hmmm... I'm not sure what the problem is exactly, but I did notice something interesting in your log:

 

  

[RTBP.DBUG (Direct3DCreate9) 00:00:4.25] Direct3D 11.1 is supported on this machine

 

 

Looks like your machine can handle the DirectX 11 version of RTBP. Maybe try that and see if it is more stable?

yes it can support DirectX 11 but it was very crashy on it. it didnt like to launch the game, it would be able to launch on the 3rd try but if i tabbed out of the game it would crash. i have a heavily modded play through

LeoTheImmortal

LeoTheImmortal

Posted
Posted
3 minutes ago, LeoTheImmortal said:

yes it can support DirectX 11 but it was very crashy on it. it didnt like to launch the game, it would be able to launch on the 3rd try but if i tabbed out of the game it would crash. i have a heavily modded play through

i will test it though

 

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