Some questions about light rendering

moss

hi！大家好，我想问一下室内灯光布置，这是我在其他讨论组找到的一个效果图，这个虚实的处理方法，怎么做的，还有这个灯光效果，这个图很通透，应该怎么做。

zombietaggerung

The lighting from outside is possibly an HDRi. As for the softness of the female figure's hair, that is either caused by the hair shader or some postwork to make the entire image look soft like that.