光线跟踪 Raytrace ; [光] ray tracing ; Light Tracer ; Ray casting
光线跟踪阴影 raytraced shadows ; Ray Trace Shadow ; Rav-Traced Shadow ; ray traced shadows
光线跟踪器 Light Tracer ; Raytracer ; ray tracing apparatus
全局光线跟踪参数 Global Raytracing Parameters
光线跟踪贴图 Raytrace
全局光线跟踪排除列表 Global Raytracing exclude list
光线跟踪渲染 raytraced renderer
光线跟踪材质 Raytrace ; Raytrace material ; raymtl
光线跟踪阴影参数 Ray-Traced Shadow Parameters
引力随距离减少的程度，跟光线随距离减弱有相同的规律，这个规律我们不久前刚刚讲过，即强度的减弱跟距离的平方成正比。
The attractive force decreases with the distance in the same proportion as light, which, we saw a little while ago, decreases in intensity as the square of the distance increases.
随之而来经过放大的电子跟空穴很容易检测到，这就表明有光线经过。
The resulting cascade of electrons and holes is easy to detect, showing that light has struck .
如果光线对他们的吸引力太强，他们就会笔直走向那里，而不会去跟真正的蟑螂交流。
If they have too strong an attraction for the light they will go straight there and not interact with the real cockroaches.
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