wip Real-Time Body Physics (DirectX 11)

[ReconUnitZero]

42 minutes ago, CPVC said:

 

Not yet. This mesh is kinda funky. The left and right breasts don't have identical blend weights, so each breast is going to deform differently.

 

Examining the mesh in Blender, I see that the right breast is influenced by it's CAS bone much more than than the left is influenced by its bone. For example, at the tip of the nipple on the right breast, the right CAS bone weight is 0.578595. The corresponding vertex on the left breast for its CAS bone is only 0.5. This imbalance is consistent across most of the right breast, which is probably why it sags more.

 

Odd stuff. Maybe there's something I can do.

Strange. Hopefully it can be corrected.

As for the other issue with the floating collars and other dress parts unaffected by physics on some non-eve outfits. should I link you to some of them via Direct Message to investigate ?

[SimsTrigger]

 can anyone help me when i open the RTBP Commander it says unable to connect its not working for me

RTBP Installer Log.txt

[JaidenRccn]

Hey! Hope that this isn't a question asked to often.

Everything works fine. The only issue I have is that the image for the gallery always looks wonky.

 

 

Is there a way to prevent this from happening? 

 

 

[Leeraa]

On 3/17/2025 at 9:36 AM, ReconUnitZero said:

Wanted to check in if there's any hotfix for Eve.9 issue from earlier, as most new shirts or dresses I download from SMsims use the current Eve.v9 chest mesh which have the same problem with the physics, causing one of them to droop lower than the other. There are some other shirts and dresses which also have some similar issue of not fully having physics, leaving a detached clothing collar or neck area unaffected by the physics.

I have the same issue

 

[alexlll]

You can make a similar mod for inZOI ?

[CPVC]

On 3/22/2025 at 2:12 PM, SimsTrigger said:

 can anyone help me when i open the RTBP Commander it says unable to connect its not working for me

RTBP Installer Log.txt 6.98 kB · 1 download

 

I see "OneDrive" in some of your pathes. I don't think RTBP plays well with OneDrive. If I remember correctly, someone else had a problem like this. I wish I could be more helpful, but I really don't know how OneDrive works. I've never used it.

 

On 3/22/2025 at 2:44 PM, JaidenRccn said:

Hey! Hope that this isn't a question asked to often.

Everything works fine. The only issue I have is that the image for the gallery always looks wonky.

 

 

Is there a way to prevent this from happening? 

 

 

 

This is a known problem. There might be something I can do. I have a couple ideas. Maybe a slight delay before the simulators take effect? I'll play around with them.

[jONHHN]

Been using this since the very beggining of this mod.    Love this mod!          But I can't seem to find any update on the dx11 support apart from a statement which a support update is coming soon, and that's years ago,  is the plan obsolete? Because for my instance dx11 does give me a noticeable performance boost when I had thounds of mods installed (mainly stuttering).

Edited March 27, 2025 by jONHHN
adding info

[CPVC]

2 hours ago, jONHHN said:

Been using this since the very beggining of this mod.    Love this mod!          But I can't seem to find any update on the dx11 support apart from a statement which a support update is coming soon, and that's years ago,  is the plan obsolete? Because for my instance dx11 does give me a noticeable performance boost when I had thounds of mods installed (mainly stuttering).

 

 

I'm still working on it. It's been a little tougher than I thought, but I've made a lot of progress. As you can see in the above image, I've successfully isolated the breast bones on this sim. It works for a lot of meshes, but not all. Once I can reliably control the breasts, it shouldn't take long to do the rest of the porting.

[DonJulione]

On 11/25/2024 at 4:41 AM, CPVC said:

 

 

This usually means that RTBP doesn't have write permission to it's log file. You can try changing the permissions, but it might be easier to just delete your RTBP folder (located at "...\[MY_DOCUMENTS]\Electronic Arts\The Sims 4\RTBP"). RTBP will recreate the folder with the correct permissions the next time you launch the game.

I having the same issue. Deleting the RTBP folder didn't lead to success. I also gave full access to the folder for all users etc. but that also didn't work. Any other suggestions for a solution?

 

Thank you very much

[DonJulione]

1 hour ago, DonJulione said:

I having the same issue. Deleting the RTBP folder didn't lead to success. I also gave full access to the folder for all users etc. but that also didn't work. Any other suggestions for a solution?

 

Thank you very much

in addition to that: 

 

Due to the fact that the programm is not writing a log file I can't post one. However I'm using the Sims x64 version via EA app with the -dx9 parameter setting

[jONHHN]

12 hours ago, CPVC said:

 

 

I'm still working on it. It's been a little tougher than I thought, but I've made a lot of progress. As you can see in the above image, I've successfully isolated the breast bones on this sim. It works for a lot of meshes, but not all. Once I can reliably control the breasts, it shouldn't take long to do the rest of the porting.

Kudos to you man, even without the dx11 support, you and this mod is already a legend to me. 

[JaidenRccn]

On 3/27/2025 at 7:43 AM, CPVC said:

 

I see "OneDrive" in some of your pathes. I don't think RTBP plays well with OneDrive. If I remember correctly, someone else had a problem like this. I wish I could be more helpful, but I really don't know how OneDrive works. I've never used it.

 

 

This is a known problem. There might be something I can do. I have a couple ideas. Maybe a slight delay before the simulators take effect? I'll play around with them.

 

Hey! Thanks for your reply! Sorry for bothering you with an already known issue. :]]

[BakunyuuWaifu]

Yeah... I need that Direct X 11 version ASAP!

[HpMpAp]

I installed it and the transparency of the game broke, with objects disappearing, bugged ghosts... but uninstalling it didn´t fix it, changing again to DX11 did. I´ve never opened the game in DX9 before, so probably that was the problem (not the mod but DX9). Does it happen to anyone else? Graphical glitches when using DX9 but not with DX11. Is there any mod that causes that? It´s a problem, because now that I have tried it can´t come back to the rigid sims hahaha, but seems like the DX11 version will take some time.

[alexlll]

HpMpAp - ReShade?

[HpMpAp]

2 hours ago, alexlll said:

HpMpAp - ReShade?

That was my first thought, but I don't have it installed, although after looking it up and seeing how the game looks with it, I'll probably try it hahaha, and hopefully that fixes the problem with DX9 and can play with this mod, we'll see.

 

Oh, and a message to the creator of the mod: The spanish version of the sims 4 uses a folder named "los sims 4" in "documents", but the mod doesn't recognise that folder and creates a new one called "the sims 4". It´s not a problem per se, but the config file that the mod creates if it doesn't detect anything, at least for me, was broken, with the parts stretching when pausing or accelerating the game. Again, not a problem as it´s as easy as changing the file in that folder with the one provided in the download, but it would be great if it was made more clear in the install instructions and the "readme", as in "if your sims 4 "documents" folder is not called "the sims 4", create a new one with that name and place the "RTBP" folder inside".

[HpMpAp]

I found the problem. The D3D9.dll from this mod is what is causing the visual glitches. Installing ReShade fixed the problem, but just because I removed that archive from this mod. After reinstalling it (and naming the other reshade) the problem came back. I even removed every mod except this one, and the problem remained. It´s only clearly visible while in ravenwood (it happens everywhere, but in a much smaller scale than there) and on ghost sims. The progressive disappearance of the objects when getting the camera close flashes, and the ghost sims flash nonstop when moving the camera, with their legs cut clean, instead of the usual progression. The most strange thing is that partially removing the mod (as in delete the folder in the mods folder) doesn't fix the problem, only removing D3D9.dll does. And it's breaking other mods too, at least "Long-Term Relationship Building".

Edited April 6, 2025 by HpMpAp

[HpMpAp]

On 1/30/2025 at 2:46 AM, yeasgz said:

Ty

 

Seems this hasn't been asked tho so i'm wondering if its a new bug or my game just being weird.

But it does go away when I stop simulating the physics.

I have the same problem.

 

On 2/23/2025 at 2:21 AM, j87 said:

Anyone else having graphical glitches with shadows and reflections? I have tested removing the mod and the glitches are gone.

 

Same.

 

Edit: Looks like it's a known bug. All these things should be stated in the main post, that way everything is more clear.

 

But in any case, it's an incredible mod, congratulations. Looking forward to the release of the DX11 version.

Edited April 6, 2025 by HpMpAp

[Qwert_yyy]

Spoiler

 

Edited April 10, 2025 by Qwert_yyy

[Auron364]

I need some guidance and what is make the game not start when the D3D9.dll is in bin. Ive installed the mod on a 8 gb Dell laptop before, no issues. I just tried to run on a 16gb version of the same laptop and it just refuses to load. Does anyone know exactly what security setting is stopping d3d9.dll from loading on windows 11? I've already troubleshot my install files so I'm positive this is a security issue.

[l0ngdickj0hns0n]

The April 29 sims update stopped this mod from working. an error message pops up. I tried to snip a screenshot of the error message but windows wont allow snip to work during sims.

[l0ngdickj0hns0n]

2 hours ago, l0ngdickj0hns0n said:

The April 29 sims update stopped this mod from working. an error message pops up. I tried to snip a screenshot of the error message but windows wont allow snip to work during sims.

This may have been sims4 trying to change settings back to dx11 even though i had it turned off. I uninstalled/re-installed sims4. re-set all my settings. then reinstalled RTBP and everything is now fine. sorry for the false alarm.

[CPVC]

I'm making progress on the D3D11 version of RTBP. Attached is a demonstration. For testing purposes, every 5 seconds the location of the breasts is moved up by 0.01. The D3D11 renderer is much more complex. It's multi-threaded and there are restrictions on what you can do with buffers, likely for performance reasons.

 

There is still much to be done. It's unstable at this time and it needs refining.

 

Sorry this is taking so long. I wasn't expecting it to be so different. Also, life gets in the way.

D3D11 Progress 2.zip

[Fionnachree]

2 hours ago, CPVC said:

I'm making progress on the D3D11 version of RTBP. Attached is a demonstration. For testing purposes, every 5 seconds the location of the breasts is moved up by 0.01. The D3D11 renderer is much more complex. It's multi-threaded and there are restrictions on what you can do with buffers, likely for performance reasons.

 

There is still much to be done. It's unstable at this time and it needs refining.

 

Sorry this is taking so long. I wasn't expecting it to be so different. Also, life gets in the way.

D3D11 Progress 2.zip 827.96 kB · 3 downloads

Thank you so much for this mod (and the progress update). I am sure the wait will be worth it, it’s already astonishing that the mod is completely free.

[RealSiViX]

17 hours ago, CPVC said:

I'm making progress on the D3D11 version of RTBP. Attached is a demonstration. For testing purposes, every 5 seconds the location of the breasts is moved up by 0.01. The D3D11 renderer is much more complex. It's multi-threaded and there are restrictions on what you can do with buffers, likely for performance reasons.

 

There is still much to be done. It's unstable at this time and it needs refining.

 

Sorry this is taking so long. I wasn't expecting it to be so different. Also, life gets in the way.

D3D11 Progress 2.zip 827.96 kB · 9 downloads

Thank you for the update and no need to apologize, you're doing something none of the rest of us are capable of and it is immensely appreciated!!!