Per-vertex dynamic lighting can add significant cost to vertex transformations. Avoid multiple lights affecting single objects. Bake lighting for static objects.

逐顶点的动态照明显着增加顶点变换的开销。尽量避免多个灯照亮任何给定的物体的情况，对于静态对象，烘焙静态物体的照明。

youdao

For static objects, baked lighting is much more efficient.

对于静态物体，采用烘焙光照方法则是更为有效的方法。

youdao

Instead of the pre-canned, static lights that we see on mobile games today, NVIDIA's new hardware will make it possible to create lighting that moves, fluctuates in intensity, and responds realistically to its environment -- all rendered in real time.

ENGADGET: NVIDIA's quad-core Kal-El used to demo next-gen mobile graphics, blow minds (video)