この記事では、男の娘下半身クローズアップ動画の生成(i2v)をWAN2.2で検証していきます。
人物の画像や動画の場合、顔の見える構図である事が一般的です。逆に、顔の見えない構図のものはレアケースです。
そして、この「レア度」がポイントで、顔の見えない構図は学習データとして使われる頻度が少ないため、画像や動画の生成に失敗する可能性が高くなります。場合によっては、まったく生成できない事もありえます。
ただ、このケースの画像生成に関しては成功例があります。
■【解説】男の娘下半身クローズアップ画像の生成
https://rarabeat.fanbox.cc/posts/9745066

# 1.はじめに この記事では、男の娘の下半身クローズアップ画像、特にアナルセックス時の画像を生成する方法を解説していきます。 画像生成AIにおけるキャラクター画像は、基本的に顔が見える構図のものになりやすいです。 これは、世にあるキャラクター画像の大半が、そのようになっている為だと思います。 通常はそれ...
しかし、動画に関しては、成功例を見た覚えがないです。
その為、今回の記事ではそれを検証していきます。
■Zuntan03/EasyWan22: EasyWan22 is an easy-to-use environment for Wan 2.2 / EasyWan22 は簡単に Wan 2.2 を試せる環境です
https://github.com/Zuntan03/EasyWan22
※素材画像は上の記事のものを使用しています。
■Hassaku XL (Illustrious) - v2.1fix [by Ikena]
https://civitai.com/models/140272?modelVersionId=1617798
## ①
■Pillow Humping - Wan2.2 - T2V - HIGH - 14B
■Pillow Humping - Wan2.2 - T2V - LOW - 14B
[by playtime_ai]
https://civitai.com/models/1534590?modelVersionId=2109542
https://civitai.com/models/1534590?modelVersionId=2109543
```
A close-up shot focusing on the lower body, with the head out of frame, captures the intimate scene of two men engaging in frottage. One man is straddling a pillow, his smooth skin glistening under soft, warm lighting. The other man is grinding on top of the pillow, their penises touching and rubbing against the pillow in a rhythmic, sensual motion. The camera slowly tracks the scene, capturing the subtle movements and the interplay of light and shadow on the bodies. The composition is centered, with a medium lens used to maintain a close-up shot. The color tone is warm with high saturation, enhancing the natural tones of the skin. The visual style is photorealistic, and the camera movement is a slow tracking shot, ensuring a smooth and continuous flow of the scene. The visual effects are subtle and natural, adding to the realism of the moment.
```
## ②
■Wan 2.2 / 2.1 - Trans & Futanari Cowgirl - i2v - t2v - v1.0 Wan 2.2 I2v 14B High
■Wan 2.2 / 2.1 - Trans & Futanari Cowgirl - i2v - t2v - v1.0 Wan 2.2 I2V 14B Low
[by pikenrover]
https://civitai.com/models/1375170/wan-22-21-trans-and-futanari-cowgirl-i2v-t2v
https://civitai.com/models/1375170?modelVersionId=2297968
```
Man's POV of him laying down with a woman facing away while riding on top and having anal sex with him. A close-up shot focusing on the lower body, with the head out of frame, captures the intimate scene of a man laying down with a woman facing away, her voluptuous buttocks prominently displayed, her smooth skin glistening under soft, warm lighting. The woman is in the process of riding on top of the man, engaging in anal sex, her hips moving in a rhythmic, sensual motion. The camera slowly tracks the scene, capturing the subtle movements and the interplay of light and shadow on the bodies. The composition is centered, with a medium lens used to maintain a close-up shot. The color tone is warm with high saturation, enhancing the natural tones of the skin. The visual style is photorealistic, and the camera movement is a slow tracking shot, ensuring a smooth and continuous flow of the scene. The visual effects are subtle and natural, adding to the realism of the moment.
```
## ③
■Wan 2.2 / 2.1 - Anal Reverse Cowgirl POV - t2v - i2v - Wan 2.2 T2V T14B High
■Wan 2.2 / 2.1 - Anal Reverse Cowgirl POV - t2v - i2v - Wan 2.2 T2V T14B Low
[by pikenrover]
https://civitai.com/models/1400486/wan-22-21-anal-reverse-cowgirl-pov-t2v-i2v
https://civitai.com/models/1400486?modelVersionId=2322473
```
Man's POV of him laying down with a woman facing away while riding on top and having anal sex with him. A close-up shot focusing on the lower body, with the head out of frame, captures the intimate scene of a man laying down with a woman facing away, her voluptuous buttocks prominently displayed, her smooth skin glistening under soft, warm lighting. The woman is in the process of riding on top of the man, engaging in anal sex, her hips moving in a rhythmic, sensual motion. The camera slowly tracks the scene, capturing the subtle movements and the interplay of light and shadow on the bodies. The composition is centered, with a medium lens used to maintain a close-up shot. The color tone is warm with high saturation, enhancing the natural tones of the skin. The visual style is photorealistic, and the camera movement is a slow tracking shot, ensuring a smooth and continuous flow of the scene. The visual effects are subtle and natural, adding to the realism of the moment.
```
## ④
■Wan 2.2 / Wan 2.1 - Anal Sex - v1.0 Wan 2.2 I2V 14B High
■Wan 2.2 / Wan 2.1 - Anal Sex - v1.0 Wan 2.2 I2V 14B Low
[by pikenrover]
https://civitai.com/models/1426284?modelVersionId=2161023
https://civitai.com/models/1426284?modelVersionId=2161067
```
anal sex. A close-up shot focusing on the lower body, with the head out of frame, captures the intimate scene of a man engaging in anal sex. The man's smooth skin glistens under soft, warm lighting, highlighting the rhythmic motion of his hips as he moves. The camera slowly tracks the scene, capturing the subtle movements and the interplay of light and shadow on the bodies. The composition is centered, with a medium lens used to maintain a close-up shot. The color tone is warm with high saturation, enhancing the natural tones of the skin. The visual style is photorealistic, and the camera movement is a slow tracking shot, ensuring a smooth and continuous flow of the scene. The visual effects are subtle and natural, adding to the realism of the moment.
```
## ⑤
■nashikone/iroiroLoRA
* anal_piston
- high
https://huggingface.co/nashikone/iroiroLoRA/blob/main/Wan2.2_i2v_A14B/A/anal_piston_high_wan-2-2_i2v_A14B.txt
https://huggingface.co/nashikone/iroiroLoRA/blob/main/Wan2.2_i2v_A14B/A/anal_piston_high_wan-2-2_i2v_A14B.safetensors
- low (WAN2.1)
https://huggingface.co/nashikone/iroiroLoRA/blob/main/Wan2.1_i2v_720p_14B_fp16/A/anal_piston_wanvideo_i2v_v3_phe.txt
https://huggingface.co/nashikone/iroiroLoRA/blob/main/Wan2.1_i2v_720p_14B_fp16/A/anal_piston_wanvideo_i2v_v3_phe.safetensors
* anal_shake
- high
https://huggingface.co/nashikone/iroiroLoRA/blob/main/Wan2.2_i2v_A14B/A/anal_shake_high_wan-2-2_i2v_A14B.txt
https://huggingface.co/nashikone/iroiroLoRA/blob/main/Wan2.2_i2v_A14B/A/anal_shake_high_wan-2-2_i2v_A14B.safetensors
- low (WAN2.1)
https://huggingface.co/nashikone/iroiroLoRA/blob/main/Wan2.1_i2v_720p_14B_fp16/A/anal_shake_wanvideo_i2v_epoch5.txt
https://huggingface.co/nashikone/iroiroLoRA/blob/main/Wan2.1_i2v_720p_14B_fp16/A/anal_shake_wanvideo_i2v_epoch5.safetensors
```
girl is shaking ass, pistoning. A close-up shot focusing on the lower body, with the head out of frame, captures the intimate scene of a woman engaging in anal sex. The woman's smooth skin glistens under soft, warm lighting, highlighting the rhythmic motion of her hips as she shakes her ass and pistons up and down. The camera slowly tracks the scene, capturing the subtle movements and the interplay of light and shadow on the bodies. The composition is centered, with a medium lens used to maintain a close-up shot. The color tone is warm with high saturation, enhancing the natural tones of the skin. The visual style is photorealistic, and the camera movement is a slow tracking shot, ensuring a smooth and continuous flow of the scene. The visual effects are subtle and natural, adding to the realism of the moment.
```
## ⑥
■nashikone/iroiroLoRA
* anal_cum_in_ass
- high
https://huggingface.co/nashikone/iroiroLoRA/blob/main/Wan2.2_i2v_A14B/A/anal_cum_in_ass_high_wan-2-2_i2v_A14B_v2.txt
https://huggingface.co/nashikone/iroiroLoRA/blob/main/Wan2.2_i2v_A14B/A/anal_cum_in_ass_high_wan-2-2_i2v_A14B_v2.safetensors
- low
https://huggingface.co/nashikone/iroiroLoRA/blob/main/Wan2.2_i2v_A14B/A/anal_cum_in_ass_low_wan-2-2_i2v_A14B.txt
https://huggingface.co/nashikone/iroiroLoRA/blob/main/Wan2.2_i2v_A14B/A/anal_cum_in_ass_low_wan-2-2_i2v_A14B.safetensors
- low (WAN2.1)
https://huggingface.co/nashikone/iroiroLoRA/blob/main/Wan2.1_i2v_720p_14B_fp16/A/anal_cum_in_ass_wanvideo_i2v_epoch5.txt
https://huggingface.co/nashikone/iroiroLoRA/blob/main/Wan2.1_i2v_720p_14B_fp16/A/anal_cum_in_ass_wanvideo_i2v_epoch5.safetensors
```
cum in ass. A close-up shot focusing on the lower body, with the head out of frame, captures the intimate scene of a woman engaging in anal sex. The woman's smooth skin glistens under soft, warm lighting, highlighting the rhythmic motion of her hips as she shakes her ass and pistons up and down. The camera slowly tracks the scene, capturing the subtle movements and the interplay of light and shadow on the bodies. The composition is centered, with a medium lens used to maintain a close-up shot. The color tone is warm with high saturation, enhancing the natural tones of the skin. The visual style is photorealistic, and the camera movement is a slow tracking shot, ensuring a smooth and continuous flow of the scene. The visual effects are subtle and natural, adding to the realism of the moment. As the scene reaches its climax, the man's ejaculation is depicted with cum flowing into the woman's ass, the camera capturing the intense and intimate moment with a slow motion effect, emphasizing the details and the emotional connection between the two individuals.
```
結論としては、顔の見えない構図の動画も生成できるようです。私見とはなりますが、重心移動が滑らかに再現されているように見えます。
この理由は推測にはなりますが、WAN2.2が従来のモデルと比べて、骨格情報や動作パターンの学習に重点を置いている為だと考えられます。
顔の有無に関係なく、身体のポーズや関節の位置から動作を推定する能力が高く、部分的な情報からでも全体の動きを補完できる設計になっていると思われます。
また、実写系のデータセットを多く取り込んでいる事も影響しているかもしれません。現実の映像では、顔が映っていない構図も存在する為、そうしたデータがモデルの汎用性を高めている可能性もあります。
生成AIが顔の見えない構図でも自然なモーションを生成できる事実は、今後の動画生成の在り方に大きな影響を与える可能性があります。
これまで「顔が見える事」が前提で動画生成の素材画像やプロンプトを用意していましたが、より自由度の高い構図や演出へシフトできるようになりました。
特に、局部の強調が求められる場面では、顔を映さない構図を積極的に活用できるかもしれません。
今回は「顔の見えない構図」での動作生成に関する疑問点を解消しました。これに限らず、制作過程における疑問点は様々なものがあると思います。
それらの疑問点を疑問点のままにしない態度が、あなたの表現力をアップグレードさせます。
(おわり)