Abstract - Introduction
3.7.1 Variable Declaration ....................................................................................................... 30
3.7.2 Structures ....................................................................................................................... 31
3.7.3 Functions ........................................................................................................................ 31
3.7.4 Variable Components ..................................................................................................... 31
3.7.5 Samplers ......................................................................................................................... 32
3.7.6 Effects ............................................................................................................................. 32
3.7.7 Techniques ..................................................................................................................... 32
3.8 Conclusion .............................................................................................................................. 32
4 Alternative Solutions ............................................................... 33
4.1 Introduction ........................................................................................................................... 33
4.2 Water Representations .......................................................................................................... 33
4.2.1 3D Grids .......................................................................................................................... 33
4.2.2 2D Grids - Hightmaps ..................................................................................................... 33
4.3 Performance Optimization ..................................................................................................... 34
4.3.1 Classical LOD Algorithms ................................................................................................ 34
4.3.2 LOD Algorithms on Water Surfaces ................................................................................ 35
4.3.3 Using Projected Grid ...................................................................................................... 37
4.4 Water Simulation Approaches ............................................................................................... 38
4.4.1 Coherent Noise Generation - the Perlin Noise ............................................................... 38
4.4.2 Fast Fourier Transformations ......................................................................................... 39
4.4.3 The Navier-Stokes Equations ......................................................................................... 39
4.4.4 Particle Systems ............................................................................................................. 41
4.5 Rendering Reflections ............................................................................................................ 42
4.5.1 Static Cube-map Reflections .......................................................................................... 42
4.5.2 Dynamic Cube-maps ...................................................................................................... 43
4.5.3 Reflection Rendering to Texture .................................................................................... 43
4.6 Calculating the Fresnel Term ................................................................................................. 44
4.6.1 Accurate Approximation of the Fresnel Term ................................................................ 44
4.6.2 Simpler Solution ............................................................................................................. 45
4.6.3 A Realistic Compromise.................................................................................................. 46
4.6.4 Using Texture Lookup..................................................................................................... 46
4.7 Rendering Various Water Phenomena .................................................................................. 46
4.7.1 Generating Spays Using Particle Systems ...................................................................... 46
4.7.2 Creating Choppy Waves ................................................................................................. 47
4.7.3 Rendering Caustics ......................................................................................................... 49
rohnaw2013-11-15看看实现原理，不过还是有参考性，先试着实现一个看看效果！
pengshupan2013-08-26这本书，早下过了，不过写的挺好
lordvampire2012-07-126分太贵了。介绍性的资料最好是免费。有源码还差不多
