Extensions are a means to extend maxwell capabilities in several areas: geometry loaders, geometry modifiers, procedural geometry , scene modifiers and procedural textures.
Geometry loaders allow geometry to be loaded at the beginning of the render process. Proxy objects and external referencing can be implemented using these extensions.
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Procedural geometry extensions enable maxwell to render mathematically defined primitives. It is geometry created on-the-fly.Scene modifiers are able to change elements in the scene just before the render starts.
Procedural textures generate texture colors on-the-fly while rendering.
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