对于平行光，Unity可以使用级联阴影贴图(或成为平行分割阴影贴图)有很好的阴影质量，特别是远距离观看。
For Directional lights Unity can use so called Cascaded shadow Maps (alternatively called "Parallel Split shadow Maps") which give very good shadow quality, especially for long viewing distances.
光在光纤中传输，能量会逐渐衰退，造成远距离信号的消失，因此就要对光在中间进行放大和提高光注入光纤的能力。
With light propagating in the optic fiber, energy will decline gradually and the remote signal will disappear. Thus, signal should be enlarged and the ability of light - coupling will be improved.
飞行器草图强调了概念上和物理上各自的功能——从远距离的激光源收集激光、光集中在烧蚀材料上和自主操纵方向。
The flyer design emphasizes conceptually and physically separate functions of light collection at a distance from the laser source, light concentration on the ablator, and autonomous steering.
采用匀光棒、反光棱镜和反光碗的组合，可以比较好地实现远距离的照明要求。
The model uses a uniform light stick, reflective prism and reflector to meet a longrange requirements.
采用匀光棒、反光棱镜和反光碗的组合，可以比较好地实现远距离的照明要求。
The model uses a uniform light stick, reflective prism and reflector to meet a longrange requirements.
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