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  • Passthrough production feedback and improvements thread

I have been watching the latest AR PT scene with Trinity Olsen on VRP from presumably Simsense. While there was still the major scaling issue along the depth axis (the scale seems to get larger the farther the image is away from the viewer), the image quality as such was absolutely stunning. Especially in those parts in which the performer was close to the viewer and the scale was alright, I forgot I was watching a video because it looked so real. Really hope to see this kind of image quality also in future SLR AR PT productions.

    SchnuppiLilac agree 1000% when done right (as that video is) that is by far the most immersive. No hands by the performer, slower movement (I reduced speed to 90%) which make it look extremely real. The shots done right without the floating dick are much better and SLR should definitely try this moving forward.

      5 days later

      So I've been watching a lot of Ai passthrough (which I think is awesome) and having the dick out made me realize that some positions are much more enjoyable like that (even though I still prefer some positions whit it in because it just doesn't work well).

      Like anything where the guy does the thrusting or is on top it should be out. I never watched the doggy parts or missionary in the alpha passthrough because you get what I call floating dick syndrome. You know a floating dick that doesn't align with your own unit. However when it's out these positions can be super immersive. Maybe the most immersive. It also works well when the girl is riding you (if the camera angle is good) and I prefer it out in these cases too.

      Blowjobs and handjobs are much more tricky though as the dick is often tilted and fully visible. Also, as opposed to the previously mentioned positions it will often give you sort of a outline cutout of the dick on top of the girl / behind her hand. This cutout will move a lot be angled etc.
      Your own dick will seem to be floating behind the cutout due to the differences in focus and perspective of the video and the quest passthrough feed. Also, you have to be lucky not to have a different size or shape as the performer. Then there is the fact that not a lot will be covered up by her body occluding your hand or toy. Hope Ai will fix this at some point but I think keeping it out doesn't work here.

      Anyways, looking forward to having this as a toggle in the next update. Also, I think having this toggle for alpha passthrough would be useful (dick in / out)

      5 days later

      I am totally blown away by AI Passthrough and noticed you have now started to somehow masks the gaps between a girls arm etc. which although not perfect still looks great, thanks.

      The one thing the i think would be a game changer as an addict 🙂 to this tech is a 'Feather / Soften edge' option of the mask, if you can mangage that without being to processor intense then i think it would improve the blending immensley.

      I have faith 🙂

      SchnuppiLilac thank you. I missed the part about it being on another site. I'll check their stuff out.

        5 days later

        The last couple of SLR passthrough scenes are top tier, especially in terms of casting and acting, which is ironic considering English isn't their main language. However, you could still improve the chroma keying a bit. I don't remember what the setting is, but essentially you should make it so that the gray outline around the girl is a few pixels smaller

        Oh, and don't even think about switching to a green plastic micropenis like VRPorn's AR porn studio did. It's horrible. Porn already looks too fake. There's no need to make it even faker by not even showing real sex

        Also, please remember to add AI passthrough to the old SLR passthrough that didn't use a green bodysuit. That way you can remove the male body from those scenes

        https://www.sexlikereal.com/scenes/strategic-locks-and-riddles-40591

        https://www.sexlikereal.com/scenes/personal-attention-34753

        https://www.sexlikereal.com/scenes/not-her-first-rodeo-35583

        There isn't a thread for Euro PT casting, but can I please suggest some current faves?

        Ohana Petite, Clara Mia, Era Queen, Leya DeSantis (aka Bella Blue), Ria Sunn, Fanta Sie, Chloe Heart, Mina Von D, Milan Cheek, Lya Cutie

        Era Queen is new to the biz I think, and is going to be a star

          Manny_S Will check it out. One thing to note though is that content closer to the camera is usually the biggest issue. So a video where her head is close to the camera would have made more sense for a test I think.

            Manny_S I like the 45, but I had to turn that force mono switch on cuz it was to double vision and using vertical or horizontal didn't help fix it.

            But it's gonna work 👍

                Manny_S Tried it out and I prefer the 45 degree one as well. The sweet spot for the angle you can keep your head in seems pretty narrow for this clip though and I don't think it has to be (see example below). However, maybe it's also related to the position of the girl, I find this hard to say since I've never seen spooning in this position in VR before. Also, I tried the clip on both Deovr and Heresphere and noticed the auto focus will bug out with this one where it doesn't in other similar scenes I've seen in the past. Not sure why really.

                When compared to https://www.sexlikereal.com/scenes/picnic-at-the-house-21289?t=1171 at 19:30. Both Deovr and Heresphere with and without autofocus play this perfectly when tilting your head slightly with a seemingly larger sweet spot (again could be due to the position of her head).

                Also, notice how when you keep your head upright in Heresphere in this scene with autofocus off you get horrible double vision but as soon as you turn on autofocus the image is next to perfect again. This was what I was referring to before regarding auto focus. Autofocus in Deovr does have a marginal effect but doesn't fix it.

                    Manny_S Cool, looking forward to trying this. I have been looking for more angles like these. I have seen attempts where they don't rotate the camera, which of course doesn't work. There are some nice ones mainly in the JAV category. I can only find this one at the moment https://www.sexlikereal.com/scenes/suzu-honjo-slow-and-luxurious-pleasure-looking-into-your-lovers-eyes-15246. If you haven't seen it it is worth checking out for a rotated camera shot.

                    I'll let you know once I checked the sample scene, but I predict I'd like the 45 degree angle better. Laying down on one ear, and with the headset on matching 90 degrees is impractical and uncomfortable. I'll let you know once I had a chance to check it out.

                      fenderwq The sweet spot for the angle you can keep your head in seems pretty narrow

                      But isn't it always narrow, even when it's horizontal? I think I am more used to the horizontal shots so I don't notice it as much. But when I turn even slightly I'll get the "double vision". I suppose it's easier or more natural to match up horizontally.

                        On another note and something I think would be especially interesting in PT, would it be possible to get an extra channel with the video stream that has depth data? It could be encoded in the alpha mask red parts, or however it works with the separate mask data used with the AI PT.

                        Having depth data opens up a whole range of possibilities from depth clipping your virtual hands (which unfortunately are not enabled for pico4 in deovr) with the model to more realistic perspective re-projection on head movements where you have actual perspective changes instead of the 2d warping what we now have with the 6DOF. And more.

                        The hands clipping would add a big level of immersion, I have implemented this in a VR viewer for Gaussian splatting where I have some scenes with human models and I was amazed by the immersion it provides. Of course there is no haptic feedback, but the visual feedback alone tricks me into a sensation of touching.

                        As for how to get the depth (estimation) data, I don't think this can be done in realtime on the device itself. But if preprocessing like the AI image segmentation for PT masks infra can be leveraged, then there are options like https://depth-anything.github.io/ which I believe is the current state of the art for monocular depth estimation. Of course here we have stereo and we can use that extra information and then I believe state of the art is https://haofeixu.github.io/unimatch/ although I haven't really been following the progress that closely.

                          YKBnqkvq
                          Yes, we have experimented with depthmaps a lot. As for depth the more precise estimators arise from stereoscopic estimators, rather then monocular. And definitely that may be useful. But during testing we found that even on precomputed depth the 6dof reconstruction looks bad and have too much artifacts for comfortable watching (you can see that kind of artifacts on lifecast demos for example, which uses same idea). At closeups the dephmap-based 6dof is becoming nearly unwatchable... But still we are keeping watch over video inpainting, splatinngs and other volumetric videos progress.
                          Another problem is streaming - 8 bit is not enough for accurate depth representation and most of codecs loose some info during compression which is ok for video, but not for depthmap.
                          As for on-device calculations, we found it possible to calculate low-quality (128x128) depthmap on device, which is potentially enough for occlusions both in room objects for AR (Quest only yet) and hands in VR