Plugins + Scripts Realistic Foreskin & Erection Simulation

[RunRudolf]

Hi kim05, thanks for the explanations and the video. In this case, I agree that the foreskin should definitely move, at least as long as the hand strikes it. It's however codewise somewhat tricky, because you have three potential triggers (hand, vagina, anus) which are all very close to each other. Could you send me the scene .json so that I can debug it properly? I will check which trigger is actually active or if its in transitional state (which sometimes happens). I will then propose a solution and discuss this with you, if you want. Not sure yet whether I will add an option to select/unselect triggers (e.g. deselect anus/vagina in your case), or whether I can improve the overall targeting algorithms.
In any case, thanks for reporting this and your help.

I reproduced it. It seems it really is the vagina target preventing the hand target to act. If you deactivate vagina (and anus) (the switches are there arleady, did not remember) the hand target should start to work. Can you confirm this?

I still think it could make sense to add a slider to let the user control how much dampening there is depending on the trigger. What do you think?

 

[806387023]

Thanks @806387023 for your report. I tried to reproduce it and failed. However, I have recently implemented a few more checks to deal with gender swaps, including an automatic plugin restart after switching from female to male/altfuta and vice versa, which might help to prevent such issues as the one you reported. These changes will be in the next update soon.

One question however remains: Why would you load a plugin preset you saved on a male atom on a female atom? That does not make any sense right now in my opinion. There are a few things you can do on females now (e.g. Clothing and AltFuta tabs are usable), but everyhing in ERection and Foreskin is for AltFuta and Male use only. So you better load the preset on males or AltFuta.

I just wanted to make it easier to load the plugin, so I saved it separately as a preset. It doesn't matter whether it's saved as a male or female version. The important thing is that I can quickly and conveniently load this plugin by loading the preset. I accidentally discovered this error because I have too many var packages in my inventory, so whenever I load a plugin, I need to search for it by name.

 

[kim05]

Hi kim05, thanks for the explanations and the video. In this case, I agree that the foreskin should definitely move, at least as long as the hand strikes it. It's however codewise somewhat tricky, because you have three potential triggers (hand, vagina, anus) which are all very close to each other. Could you send me the scene .json so that I can debug it properly? I will check which trigger is actually active or if its in transitional state (which sometimes happens). I will then propose a solution and discuss this with you, if you want. Not sure yet whether I will add an option to select/unselect triggers (e.g. deselect anus/vagina in your case), or whether I can improve the overall targeting algorithms.
In any case, thanks for reporting this and your help.

Thank you for your swift and professional response.
I'm afraid that won't be productive since I just loaded the scene and it immediately results in physics explosion due to all the janky workarounds I had to do in order to position atoms like so in the first place. Plus what you see in the video was quite possibly the result of me messing with settings and then not resetting everything correctly. I can recreate this pose in an empty scene with no heavy load form CUA and miscellaneous plugins if you're interested and send you that, but then again I think previous video is most likely the result of my fiddling. My issues are not with the fact that it's not working, really, it's with the fact that even if it is working, the impact is too weak. It is also working weird with "quick insert, quick pull out" kind of poses.
Here's an example:

Here you can see it doesn't react to some thrusts an some thrusts it's being pulled up. So the default position of foreskin in this pose is pulled down to the max looking quite circumcized, then after a thrust it pulls upward with the movement of vagina going up.
This time it is default settings on a freshly added plugin (I only edited erection morphs like genital bulge and penis curves), so it can't be my fiddling. However I did fiddle after recording with the offset Y for vagina and disabled Target Activation:

This did yield a limited result as in barely noticeable decrease in foreskin being pulled up by vagina, but it is not solving any primary problems, so I set it back to default.
I added json of this scene if you're interested to see for yourself, but I never shared any scenes and the atom model is probably going require some obscure dependencies.

(By the way, I would highly advise to add option for offset gizmos like what the ExtraAutoGenitals plugin does, if you can. I felt like I was looking for the right placement of the target activation as if it was a sea-mine and I was using derelict sonar in a WW1 U-boat.)

The main problem for me is that what I expect is like what I said earlier "foreskin is moved by the edge of labia majora". Effectively same result as with a handjob where the index finger and thumb are a sort of border beyond which no foreskin is allowed to stay. Not unrealistic at all, if you imagine that the grip of the fingers is not rested on the foreskin itself, but on the glans, so that the index and thumb are sort of peeling the foreskin away. And if you can imagine that, also imagine the same thing, but instead of fingers it is labia majora. That is the effect I am after.
I would never even think to insist that it should be the default effect of the plugin, but I feel vexed that I cannot customize the inner settings of the plugin to make this happen.
That is my primary concern and if sometime in the future you could possibly expand the customization possibilities within the plugin settings, I'd be alight with gratitude.
Detection in my wonky, poorly made poses where there are two or three orifices involved with the same penis is far less of an issue

 

[kim05]

I reproduced it. It seems it really is the vagina target preventing the hand target to act. If you deactivate vagina (and anus) (the switches are there arleady, did not remember) the hand target should start to work. Can you confirm this?

View attachment 495224

I still think it could make sense to add a slider to let the user control how much dampening there is depending on the trigger. What do you think?

I think if I get back to that scene to fix it, it would work, yes.

 

[RunRudolf]

Thank you for your swift and professional response.
I'm afraid that won't be productive since I just loaded the scene and it immediately results in physics explosion due to all the janky workarounds I had to do in order to position atoms like so in the first place. Plus what you see in the video was quite possibly the result of me messing with settings and then not resetting everything correctly. I can recreate this pose in an empty scene with no heavy load form CUA and miscellaneous plugins if you're interested and send you that, but then again I think previous video is most likely the result of my fiddling. My issues are not with the fact that it's not working, really, it's with the fact that even if it is working, the impact is too weak. It is also working weird with "quick insert, quick pull out" kind of poses.
Here's an example:
View attachment 495284
Here you can see it doesn't react to some thrusts an some thrusts it's being pulled up. So the default position of foreskin in this pose is pulled down to the max looking quite circumcized, then after a thrust it pulls upward with the movement of vagina going up.
This time it is default settings on a freshly added plugin (I only edited erection morphs like genital bulge and penis curves), so it can't be my fiddling. However I did fiddle after recording with the offset Y for vagina and disabled Target Activation:
View attachment 495285
This did yield a limited result as in barely noticeable decrease in foreskin being pulled up by vagina, but it is not solving any primary problems, so I set it back to default.
I added json of this scene if you're interested to see for yourself, but I never shared any scenes and the atom model is probably going require some obscure dependencies.

(By the way, I would highly advise to add option for offset gizmos like what the ExtraAutoGenitals plugin does, if you can. I felt like I was looking for the right placement of the target activation as if it was a sea-mine and I was using derelict sonar in a WW1 U-boat.)

View attachment 495287


The main problem for me is that what I expect is like what I said earlier "foreskin is moved by the edge of labia majora". Effectively same result as with a handjob where the index finger and thumb are a sort of border beyond which no foreskin is allowed to stay. Not unrealistic at all, if you imagine that the grip of the fingers is not rested on the foreskin itself, but on the glans, so that the index and thumb are sort of peeling the foreskin away. And if you can imagine that, also imagine the same thing, but instead of fingers it is labia majora. That is the effect I am after.
I would never even think to insist that it should be the default effect of the plugin, but I feel vexed that I cannot customize the inner settings of the plugin to make this happen.
That is my primary concern and if sometime in the future you could possibly expand the customization possibilities within the plugin settings, I'd be alight with gratitude.
Detection in my wonky, poorly made poses where there are two or three orifices involved with the same penis is far less of an issue

Hi kim05, and thanks again for these clarifications. I will try to explain how the forsekin plugin works and, based on this, we can evaluated what's realistically possible to achieve "foreskin is moved by the edge of labia majora".

First of all, the plugin follows this geometrical principles to determine the foreskin (slightly simplified, but still true): The plugin continuously measures the distance of a trigger (e.g. hand, vagina, mouth...) from both penis base and penis tip and compares the sum of these two distances to the penis length. If the sum of distances times 0.7 is larger than the penis length, the trigger is assumed to be out of range of the foreskin and no movement occurs. If the sum of distances times 0.7 is smaller than the penis length, it is assumed the trigger is actively moving the foreskin. The amoutn of foreskin retraction is then calculated by taking the ratio of distance to tip vs. distance to base. This is the very basic method, of course extended with quite a few "tunings", but thats it. Its not any physics simulation involved at all. The hand does not really move the foreskin, this is a mathematical model to approximate physics.

Knowing about the method from above, it becomes clear that it will be difficult to achieve effects like "outer labia will retract foreskin" or the like. This could be done with physical interactions, but is difficult to achieve if dealing with a variety of very different trigger (VR hands, atom hands, feet, chest, anus, vagina) and lots of possible orientations (tit fuck against vagina penetration is really different).

That said, the foreskin movement can be tuned to allow much stronger movement. However, this is something I have reduced over the many updates in the past, particularly in erect state, because the foreskin in erect state would naturally be moved back quite far due to skin tension, and it would only move forward a lot if actively grasped by a hand. If these strong foreskin movements are generally allowed (in erect state), you will get silly looking effects in other situations where such friction is not realistic.

In order to give you a chance to setup your desired effects, I will briefly test which parameters I would need to add to the UI to allow this. There is a (now hidden) dampening factor I could make available, and the (already available) foreskin tension plays an important role. I will experiment a bit and we'll see if it makes sense to add this.

Regarding the idea of somehow making the trigger offsets visible, that's a good input indeed. I'll try to figure out how this is possible. With this, you will be able to tune the entry point of foreskin movement to your specific needs (outer labia...).

 

[RunRudolf]

Target offset visualisation now works and will be useful to fine tune trigger activation more easily:

 

[kim05]

Hi kim05, and thanks again for these clarifications. I will try to explain how the forsekin plugin works and, based on this, we can evaluated what's realistically possible to achieve "foreskin is moved by the edge of labia majora".

First of all, the plugin follows this geometrical principles to determine the foreskin (slightly simplified, but still true): The plugin continuously measures the distance of a trigger (e.g. hand, vagina, mouth...) from both penis base and penis tip and compares the sum of these two distances to the penis length. If the sum of distances times 0.7 is larger than the penis length, the trigger is assumed to be out of range of the foreskin and no movement occurs. If the sum of distances times 0.7 is smaller than the penis length, it is assumed the trigger is actively moving the foreskin. The amoutn of foreskin retraction is then calculated by taking the ratio of distance to tip vs. distance to base. This is the very basic method, of course extended with quite a few "tunings", but thats it. Its not any physics simulation involved at all. The hand does not really move the foreskin, this is a mathematical model to approximate physics.

View attachment 495597

Knowing about the method from above, it becomes clear that it will be difficult to achieve effects like "outer labia will retract foreskin" or the like. This could be done with physical interactions, but is difficult to achieve if dealing with a variety of very different trigger (VR hands, atom hands, feet, chest, anus, vagina) and lots of possible orientations (tit fuck against vagina penetration is really different).

That said, the foreskin movement can be tuned to allow much stronger movement. However, this is something I have reduced over the many updates in the past, particularly in erect state, because the foreskin in erect state would naturally be moved back quite far due to skin tension, and it would only move forward a lot if actively grasped by a hand. If these strong foreskin movements are generally allowed (in erect state), you will get silly looking effects in other situations where such friction is not realistic.

In order to give you a chance to setup your desired effects, I will briefly test which parameters I would need to add to the UI to allow this. There is a (now hidden) dampening factor I could make available, and the (already available) foreskin tension plays an important role. I will experiment a bit and we'll see if it makes sense to add this.

Regarding the idea of somehow making the trigger offsets visible, that's a good input indeed. I'll try to figure out how this is possible. With this, you will be able to tune the entry point of foreskin movement to your specific needs (outer labia...).

I think I understood how the retraction works despite the fact that it made my head spin for a brief second, but I knew it was trigger-based, not physics-based. I think if it was physics-based tweaking it would be even harder.
I would really appreciate if the limits for adjustments were a bit looser in the UI to allow for some silly looking effects, since that's kind of what I'm looking for.
Thanks for explaining and actively trying to improve the plugin based on feedback, that is very much admirable! Special thanks for implementing gizmos, I think it will help a lot!

 

[kim05]

Hi kim05, and thanks again for these clarifications. I will try to explain how the forsekin plugin works and, based on this, we can evaluated what's realistically possible to achieve "foreskin is moved by the edge of labia majora".

First of all, the plugin follows this geometrical principles to determine the foreskin (slightly simplified, but still true): The plugin continuously measures the distance of a trigger (e.g. hand, vagina, mouth...) from both penis base and penis tip and compares the sum of these two distances to the penis length. If the sum of distances times 0.7 is larger than the penis length, the trigger is assumed to be out of range of the foreskin and no movement occurs. If the sum of distances times 0.7 is smaller than the penis length, it is assumed the trigger is actively moving the foreskin. The amoutn of foreskin retraction is then calculated by taking the ratio of distance to tip vs. distance to base. This is the very basic method, of course extended with quite a few "tunings", but thats it. Its not any physics simulation involved at all. The hand does not really move the foreskin, this is a mathematical model to approximate physics.

View attachment 495597

Knowing about the method from above, it becomes clear that it will be difficult to achieve effects like "outer labia will retract foreskin" or the like. This could be done with physical interactions, but is difficult to achieve if dealing with a variety of very different trigger (VR hands, atom hands, feet, chest, anus, vagina) and lots of possible orientations (tit fuck against vagina penetration is really different).

That said, the foreskin movement can be tuned to allow much stronger movement. However, this is something I have reduced over the many updates in the past, particularly in erect state, because the foreskin in erect state would naturally be moved back quite far due to skin tension, and it would only move forward a lot if actively grasped by a hand. If these strong foreskin movements are generally allowed (in erect state), you will get silly looking effects in other situations where such friction is not realistic.

In order to give you a chance to setup your desired effects, I will briefly test which parameters I would need to add to the UI to allow this. There is a (now hidden) dampening factor I could make available, and the (already available) foreskin tension plays an important role. I will experiment a bit and we'll see if it makes sense to add this.

Regarding the idea of somehow making the trigger offsets visible, that's a good input indeed. I'll try to figure out how this is possible. With this, you will be able to tune the entry point of foreskin movement to your specific needs (outer labia...).

I found an older scene where I was able to get near perfect effect I'm looking for with an older version of the plugin. That looks really good.

 

[RunRudolf]

I found an older scene where I was able to get near perfect effect I'm looking for with an older version of the plugin. That looks really good.

Thanks, I know what you mean. Testing and implementing math/geometry to determine this "inside" state to allow full foreskin movement in this situation while still preventing this when lip sucking from the side or just rubbing pussy. I think I am close to it, please give me a bit more time to optimise it!

 

[kim05]

Thanks, I know what you mean. Testing and implementing math/geometry to determine this "inside" state to allow full foreskin movement in this situation while still preventing this when lip sucking from the side or just rubbing pussy. I think I am close to it, please give me a bit more time to optimise it!

Oh, sure. I'm not trying to rush, I just really wanted to present an instance where I feel the plugin worked perfectly for me as I had to resort to long and wacky explanations prior to that. You take all the time you need and thank you!

 

[RunRudolf]

RunRudolf updated Realistic Foreskin & Erection Simulation with a new update entry:

Visual Offset Help, Adjustable Foreskin Dampening if Outside Orifice

View attachment 496664
Credits: Looks: Loui and Tracey (both by RiskyBizz) with poses by VamHerous (sexy body language poses)

• Foreskin: Visually displaying closest or active trigger point as a colored sphere. Yellow means closest foreskin trigger, green is the active foreskin trigger. The visual help will greatly enhance fine tuning of trigger offsets for specific animations.
• Erection: Visually displaying a colored line from the penis tip to the...

Read the rest of this update entry...

 

[806387023]

I found an older scene where I was able to get near perfect effect I'm looking for with an older version of the plugin. That looks really good.

What is the name of this older scene and who is the creator?

 

[JonyPink]

Hi Rudolf...
Visually displaying closest trigger point is a huge help for adjust offsets, thanks for the update!!

 

[kim05]

What is the name of this older scene and who is the creator?

I am. I do not post scenes and looks publicly, I'm afraid.

 

[806387023]

I am. I do not post scenes and looks publicly, I'm afraid.

I just want to know the author's name and the title of the work.

 

[kim05]

I just want to know the author's name and the title of the work.

I am the author and there is no name.

 

[806387023]

I am the author and there is no name.

okay

 

[mikeriko]

any1 else also notice this line when using the plugin? its nothing serious maybe just a little annoying that its there
edited : seem likes it only happen for the foreskin plugin (not the erection) and even after removing it the line still exist
another edited... : somehow the line still exist after loading other scenes

 

[RunRudolf]

any1 else also notice this line when using the plugin? its nothing serious maybe just a little annoying that its there
edited : seem likes it only happen for the foreskin plugin (not the erection) and even after removing it the line still exist
another edited... : somehow the line still exist after loading other scenes

View attachment 498366
View attachment 498367

Hi @mikeriko, I see your point, I also see this line now. Thanks for reporting. The reason why it does not disappear after loading another scene is that these rendered lines are persistent once drawn - if the corresponding inactivation order does not occur. I have checked the code and removed the line(s). These where intended for testing and not properly removed.

 

[RunRudolf]

RunRudolf updated Realistic Foreskin & Erection Simulation with a new update entry:

Bugfixes Based on User Feedback and UI Cleaning

View attachment 498461
Without (left) and With Stopper.BodyMeshColliders (penis tip collider)

• ControlCenter: Removed separate “Enable Orgasm” Button. When loading the SexyFluids plugin, orgasm will now automatically be activated, thus this button is not needed any more.
• ControlCenter: Added Stopper.BodyMeshColliders plugin (penis tip collider) to be added and enabled together with the balls colliders. This plugin prevents clipping of the penis tip...

Read the rest of this update entry...

 

[kim05]

RunRudolf updated Realistic Foreskin & Erection Simulation with a new update entry:

Bugfixes Based on User Feedback and UI Cleaning



Read the rest of this update entry...

If it's getting a bit boring, you could switch to making female genitals gloriously realistic

 

[MDKSBG]

If you are bored, could you try to make Altfuta implement the physics ball?

 

[Virtamales]

Well, you said you're getting bored with the last update, so here's one suggestion: when you load the plug-in on a character, the default morph values that come with the plug-in are loaded on the character as well... Some of us (who see male looking figures as something more than a mere ugly, expressionless, muted extension of an average or "petite" penis) we, I say, like to fiddle the shaft, glans and scrotum morphs to make them more appealing.

Could be a way to save genital morph presets to load with your plug-in, or, as another alternative, could the plug-in read which gental morphs values does the character already have, and keep them as they are for that specific look?

A third option, I guess that much easier, would be removing completelly the "Static Morph Config", because I can keep record of what penis length / shaft girth does my guy have before I load the plug-in on him, and restore its values after loading the plug-in, but I usually gotta write down all involved morph values (spongiosum, glans slope, glans length, etc, for restoring them after loading your great plug-in... These are just some ideas, if you cannot do it, it's OK, but please don't get bored, we're all here for the fun

 

[RunRudolf]

If you are bored, could you try to make Altfuta implement the physics ball?

Interesting point, I thought it already does? Doesn't it?

 

[RunRudolf]

If it's getting a bit boring, you could switch to making female genitals gloriously realistic

That's kind of a really different story. I think you are talking about female arousal, fluids integration, nipple erection, vagina twitching, dynamic clitoris erection, squirting, orgasm integration coupled to VAMMoan arousal etc. These are some of the points you already mentioned. That could be interesting. Lets shape that a bit further.

For the morphs , there are already quite sophisticated plugins around:
- https://hub.virtamate.com/resources/autolabia.139/
- https://hub.virtamate.com/resources/extra-auto-genitals-plus.45383/
- https://hub.virtamate.com/resources/orifice-dynamics.56967/

What else would you miss there?
If others want to join in, please freely contribute to the wishlist.