本帖转自 http://www.iarch.cn/thread-10124-1-1.html，版权归作者所有
V-Ray for SketchUp不仅渲染速度快，并且操作直观简便，通过几年的发展，今天终于更新啦！
V-Ray for SketchUp 1.5新版本目前只提供给内测的正版用户下载以及新购买的用户直接升级。
本站就V-Ray for SketchUp 1.5版本的新功能主要特点测试结果简述如下：
1、增加了V-Ray代理功能。支持VRMesh的网格文件格式。
2、修复了以前版本中SketchUp默认的太阳显示错误的BUG，现在可以显示SketchUp默认
阳光的物理参数。
3、V-Ray for SketchUp 1.5不能运行以前的的许可证号，旧版本的V-Ray for SketchUp
在安装了V-Ray for SketchUp 1.5后将不能使用。
4、V-Ray for SketchUp 1.5采用加密狗和许可证服务器Dongle结合的验证许可方法。
5、最新采用精确物理真实的全局照明解决方案。
6、全屏抗锯齿，采用三种不同的光子图像采样方法以及先进的色彩映射控制。
7、支持网络渲染及多核心处理器。
8、增加物理相机型号匹配的功能，可以精确模拟运动模糊以及增加镜头的景深功能。
9、修正反射纹理的一些错误BUG。
10、修正HDRI的一些BUG。
11、较之以往任何版本而言，V-Ray for SketchUp 1.5的渲染速度是加快。
12、增加VRayLensEffects的图像处理功能，能制作镜头眩光等功能。
Migration to V-Ray 1.5
General
While there are new features in V-Ray 1.5, we have tried to keep the compatibility with older V-Ray versions where this is possible. Nevertheless, a few changes to the basic operation of the V-Ray rendering engine were made. The most important of these are outlined below. Note that there may be other changes not mentioned here.
Feature Changes
Adaptaive DMC image sampler
The Adaptive DMC image sampler in V-Ray 1.05.29 could not properly reduce noise in darker parts of the image when the Subpixel mapping and Don't affect colors options in the Color mapping section were enabled together with the Gamma setting. This was because the image that the sampler "saw" was quite different from the actual final result and the sampler did not put enough samples in these areas. Such sutiations required lowering of the DMC color threshold to produce a good result.
This is corrected in V-Ray 1.5, but it means that older scenes might render slower than with V-Ray 1.5 because more image samples will be calculated. In most cases, this can be fixed by increasing the DMC color threshold, as it no longer needs to be very low to produce a clean image.
Note that this change concerns image sampling only; other sampling routines (for exmple for GI etc) are not affected.
HDRI and V-Ray Sky gamma
In V-Ray 1.05.29 there was a bug that caused HDRI and V-Ray TexSky to have the incorrect gamma result. We no longer apply the inverse the gamma to and HDRI or TexSky because they have their own gamma value of 1.0. This could affect your final rendering. To get the same result as in V-Ray 1.05.29 you will have to correct the gamma for the HDRI in the V-Ray texture editor. We don’t have a way to correct the TexSky gamma.
Texture multiplier
The texture multiplier is no longer in the texture editor. The texture multipliers are now available by the individual color and texture controls.
SketchUp default sun
In V-Ray 1.5 we convert all SketchUp default sun used in V-Ray 1.05.29 to a SketchUp Document sun.
Reflection texture color
In V-Ray 1.05.29 there was a bug that caused the texture color for the reflection slot to be inverted. We fixed this issue in VFR 1.5. If you want to get the same result of VFR 1.05.29 you will have to invert the texture map.
Anistropic vector derivation
In V-Ray for SketchUp 1.05.29 we didn’t have this option. The default derivation was “Map channel”. The default UV vector derivation in VfR 1.5 is Local axis Z. If you want to get the same result as in VfR 1.05.29 you have to manually change the option to “Map channel”.
Licensing
V-Ray 1.5 cannot run with the license server from previous V-Ray versions - you must use the V-Ray license server and dongle provided with V-Ray 1.5 itself. Furthermore the V-Ray 1.5 license server will not work for older versions of V-Ray.
If you already own a dongle for another V-Ray product your dongle can be reprogrammed to consolidate all of your licenses.
V-Ray Features
Home
The V-Ray rendering system has many advanced features; here only some of them are listed. For a full list of all V-Ray modules and options, please see the help index. Note that all features are subject to change without special notice.
Core architecture
Multi-platform object-oriented API
Fully multithreaded core
Unified sampling system based on Schlick sampling
Distributed rendering
Efficient shading system specifically optimized for ray-tracing
Modular architecture - many components of the system can be replaced with custom ones
Geometry
Efficient geometry handling
True instance rendering
On-demand dynamic geometry creation
On-demand geometry loading from disk files
Displacement mapping
Image sampling
Three different image sampling methods
Full-scene antialiasing
Progressive path tracing
Support for additional render elements (diffuse, reflection, GI etc)
Advanced color (tone) mapping controls
Illumination
Physically accurate full global illumination solutions
Different GI algorithms: path tracing, irradiance cache, photon maps, light cache
Reusable GI solutions for accelerated rendering of walk-through animations and animations with dynamic objects
Physically accurate area lights
Efficient illumination from HDR environments
Procedural sun & sky models
Shaders
Physically plausible materials
Blurry reflections/refractions
Accurate hilights
Sub-surface scattering
Support for efficient material layering
Camera effects
Depth-of-field with bokeh effects
Accurate motion blur
Physical camera model
Extras
Toon effect
Lens effect
Frame buffer
V-Ray specific frame buffer with integrated color corrections and display of multiple rendering elements
Direct rendering to disk for extremely large images, either as OpenEXR files or as .vrimg files
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