bodypaint 3D里面把材質球的alpha通道打開畫就行了。添加材質球---->選擇貼圖的通道：Materials ---->File---->New Material材質球圖標---->右鍵---->Texture Channels---->選擇需要打開的通道Color (C) ---------------------------------------Diffusion (D) ---------------------------------Luminance (L) ----------------------------------Transparency (T) ----------------------------Reflection (R) ----------------------------------Environment (E) ----------------------------Bump (B) -----------------------------------------Alpha (A) -----------------------------------------Specular Color (S) -----------------------------Displacement (D) -----------------------------