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This is a creased displaced catmull-clark subdivision surface. Increasing the micropolygon length is equivalent to making the object's size smaller in the image. - When the object is large, it is finely tesselated into milions of micropolygons.
- When the object becomes smaller than a pixel, only the control mesh remains.
This works a bit like an automatic level of detail and preserves memory when an object is so small in screen that it doesn't need an fully detailed representation. |
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Model detailing
Often, it is better to rely on displacement and bump mapping to add details.
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