已知Shadow Maps名称汇总

最近给3D引擎写室外阴影支持，上网收集了一下各种Shadow Maps技术文章、示例程序之类。今天一上Google，输入"OpenGL Shadow Map"，发现前十页所有的链接已经全部变成暗红(最近看过)。于是整理了一下手里的文档，便得出了以下列表。

所有名词按字母顺序排序

SM: Shadow Maps
ASM: Adaptive Shadow Maps
ASM/AFSM: Alias-free Shadow Maps
ASSM: High-Quality Adaptive Soft Shadow Mapping
BSM: Bitmap Shadow Maps
CSM: Cascaded Shadow Maps
CSM: Coherent Shadow Maps
DASM: Dynamic Adaptive Shadow Maps
ESM: Exponential Shadow Maps
LogSM: Logarithmic Shadow Maps
LogPSM: Logarithmic Perspective Shadow Maps
LogTSM: Logarithmic Trapezoidal Shadow Maps
LSPSM/LispSM: Light Space Perspective Shadow Maps (在OpenSceneGraph 2.7/2.8中有见到使用)
LVSM: Layered Variance Shadow Maps
MDSM: Multiple-Depth Shadow Maps
MTSM: Multilayer Transparent Shadow Maps
PLSM: Practical Logarithmic Shadow Maps
PSM: Perspective Shadow Maps
PSSM: Parallel-Split Shadow Maps (中国人发明，见《nvidia GPU Gems 3》第10章)
PSVSM Parallel-Split Variance Shadow Maps
QVSM: Queried Virtual Shadow Maps
RMSM: Resolution-Matched Shadow Maps
RSM: Robust Shadow Maps
SPPSM: Separating Plane Perspective Shadow Mapping
SSM: Standard Shadow Maps
SSM: Subdivision Shadow Maps
SSM: Soft Shadow Maps
SAVSM: summed-area variance shadow maps
SSSM: Simpler Soft Shadow Mapping
TSM: Trapezoidal Shadow Maps
VSM: Variance Shadow Maps
XPSM: Extended Perspective Shadow Maps