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LightRigger is a freeware Maxscript lighting utility for Autodesk's 3ds Max.

The LightRigger script runs inside 3ds max 3-2008 and provides a draft-quality, global illumination lighting system for the default scanline renderer. Unlike full-featured global illumination renderers, LightRigger uses standard 3ds Max lights and components to simulate only the diffuse interreflection component of global illumination.

LightRigger's main advantage is speed, both in setup and rendering. The core principle on which it's founded is the well known "old-school" approach of using a light dome or rig, but LightRigger takes it much, much further. Using a little-known behavior of the default scanline renderer, LightRigger is able to convert Light Rigs into Shadow Rigs, which add shadows but no light at all to the scene. This is what allows multiple Rigs to work together in the same scene....something that is impossible using any other available light dome script.

LightRigger is also unique in that objects illuminated with its Rigs are able to move and animate freely, rather than be restricted to the scope of a single, large light dome. The amount of control in the LightRigger system is unmatched, allowing you to focus on your scene instead of continually managing a loose group of lights.

一个很不错的灯光渲染脚本，只使用默认的max灯光+scanline渲染器来模拟真实的全局光效果。