The Precompute Process 预计算过程 In Unity, precomputed lighting is calculated in the background - either as an automatic process, or it is initiated manually. In either case, it is possible to continue working in the editor while these processes run be…

1.前言 写这篇文章一方面是因为unity的微博最近出了关于预计算光照相关的翻译文章,另一方面一些美术朋友一直在抱怨烘培速度慢 所以抱着好奇的心态来学习一下unity5的PRGI预计算实时光照 2.基本参数与使用 2.1 常规介绍 使用预计算光照需要在Window/Lighting面板下找到预计算光照选项,保持勾选预计算光照并保证场景中有一个光照静态的物体 此时在编辑器内构建后,预计算光照开始生效. 相关的文章有很多,unity官方有一系列文章不错: https://unity3d.com/cn…

1.基本参数与使用 1.1 常规介绍 使用预计算光照需要在Window/Lighting面板下找到预计算光照选项,保持勾选预计算光照并保证场景中有一个光照静态的物体 此时在编辑器内构建后,预计算光照开始生效. 相关的文章有很多,unity官方有一系列文章不错: https://unity3d.com/cn/learn/tutorials/topics/graphics/introduction-precomputed-realtime-gi 在Lighting面板的Scene页签下可以设置全局光…

目录 基于图像的光照(Image Based Lighting,IBL) The Split Sum Approximation 过滤环境贴图 预计算BRDF积分 预计算辐射度传输(Precomputed Radiance Transfer,PRT) 球谐(Spherical Harmonics,SH) 球谐光照(Spherical Harmonic Lighting) Diffuse 物体的球谐光照 Glossy 物体的球谐光照 球谐光照预计算 Transfer 球谐函数的旋转(SH Rota…

  Choosing a Lighting Technique 选择照明技术 https://unity3d.com/cn/learn/tutorials/topics/graphics/choosing-lighting-technique?playlist=17102   Broadly speaking, lighting in Unity can be considered as either ‘realtime’ or ‘precomputed’ in some way and bot…

  Light Probes 光照探针 Only static objects are considered by Unity’s Baked or Precomputed Realtime GI systems. In order for dynamic objects such as interactive scene elements or characters to pick up some of the rich bounced light that our static geomet…

Lighting overview 照明概述     In order to calculate the shading of a 3D object, Unity needs to know the intensity, direction and color of the light that falls on it. 为了计算3D物体的阴影,Unity需要知道落在它上面的光的强度,方向和颜色. These properties are provided by Light objects i…

  Emissive Materials 自发光材质 Whilst Area Lights are not supported by Precomputed Realtime GI, similar soft lighting effects are still possible using ‘Emissive Materials.’ Like Area Lights, emissive materials emit light across their surface area. They c…

  Light Types 灯光类型 We have now covered some of the project settings which need to be considered before beginning work on lighting your scenes in Unity. Hopefully at this point you should have your project configured appropriately for your target plat…

1. 论数据立方体预计算的多种策略的优弊 (1)计算完全立方体:需要耗费大量的存储空间和不切实际的计算时间. (2)计算冰山立方体:优于计算完全立方体,但在某种情况下,依然需要大量的存储空间和计算时间. 因为冰山立方体的确定在于最小支持度的确定,所以例如:如果基本立方体单元(a1,.....a60)则,他将至少产生2的60次方个冰山立方体单元:另外最小支持度这个值是难于确定的,小的话将导致巨大的立方体,大的话可能无法用于许多有意义的运用.在实际运用的过程中,应用数据随时间的变化不断增加,之前剪枝…