FOUND OUT THE REASON.
Added 2023-06-12 05:57:50 +0000 UTC我尝试改变皮肤的透明度，修改照明技术，调整纹理本身，以及比较"Haku"模型的材质信息等等。经过各种尝试和反复思考，我终于找到了原因。
原因是纹身纹理和皮肤纹理的位置。由于纹身纹理微妙地嵌入在皮肤中，导致了那种现象的发生。为了验证，我把纹身纹理放在前面，并施加光照，但并未发生该现象。
我从中学到了一次教训！让我们考虑一下虫子纹身设计。
I tried changing the transparency of the skin, altering the lighting technique, modifying the texture itself, and comparing the material information of the "Haku" model. After various trial and error, I finally figured out the cause.
The cause was the positioning of the tattoo texture and the skin texture. The tattoo texture was slightly embedded in the skin, which caused that phenomenon. As an experiment, I exaggeratedly brought the tattoo texture to the forefront and applied light to it, but the phenomenon did not occur.
I've learned another lesson from this! Let's think about a bug tattoo design.
