At first, I give the character a rough Lambert material.
Then, I start to UV mapping.
Import Maya file into Substance painter: maya和Substance Painter模型材质互导_哔哩哔哩_bilibili
Make hair texture in SP: 【三渲二】利用substance painter快速生成风格化渐变头发_哔哩哔哩_bilibili
maya和Substance Painter模型材质互导_哔哩哔哩_bilibili
【SP全教程】基础讲解+材质贴图制作案例，零基础入门到精通，次世代新手学建模必备，Substance Painter，_哔哩哔哩_bilibili