阴影贴图是基于纹理的方式，最简单的方法把它看作是“阴影纹理”，从灯光投射阴影到场景。

Shadow mapping is a texture based approach, it's easiest to think of it as "shadow textures" projecting out from lights onto the scene.

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通过改变激光器投射的方向，在物体表面得到一系列曲线纹理。

The structure lighting, which is projected on the object by laser, is used as the texture for matching.

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并用体元投射和三维纹理映射方法分别实现了混合八叉树的体绘制与多分辨率绘制。

Volume rendering and multi-resolution rendering for hybrid octree via cell projection and 3D-texture mapping are implemented.

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