[Alax翻译] V-Ray Settings Overview

                
                
A lot of you have been asking for V-Ray settings and so I am going to spend a little time going over the settings that I used to create the base rendering of the main street perspective in the previous post. I have been using V-Ray for over a year now and I am in no way paid by V-Ray or affiliated with the company. I simply tried out a lot of different programs and found V-Ray was the best at meeting a lot of my needs. The most important of these were simplicity and flexibility. Right out of the box, V-Ray generates nice renderings. You will notice that I don’t vear too far from the default settings, but instead use settings that will provide the best ratio of fast rendering times and good outputs. Another very important point that I want to make is that I am not trying to produce the perfect V-Ray rendering each time. I am simply trying to get close to what I want and then refine the lighting and colors in Photoshop. This way of thinking maintains my sanity and minimizes the amount of test renderings and setting adjustments that need to be made.
许多人问 v-ray 渲染因此我现在花一点时间回顾一下以前的街道透视的渲染例子 我现在使用 v-ray 一年多了但我没有通过的V-Ray与本公司支付或挂靠方式 我用过其他软件发现 v-ray 很好而且满足我的许多需要 其中最重要的，具有简单性和灵活性。正确的开箱即用，V射线产生很好的效果图 你会发现，我不设置从默认设置太远，而是使用的设置，将提供快速的渲染时间和良好输出的最佳比例 另一个重要的一点是我每次从不试图产生完美的 v-ray 渲染图 我只是简单的试图接近我想要的和重新再ps里面的灯光和颜色 这种思维方式保持我的理智，减少测试渲染和需要进行设置调整量
Render settings are obviously a big topic to cover and there are many different rendering situations like interior shots, dusk shots, and daytime shots that require different setups. To keep things manageable, this first post will be an overview of the basic concepts that I use for setting up a daytime rendering scene. Things like material setup, AO passes, dusk and interior shot setup will come later.
渲染明显是个大主题而且有许多不同的渲染情况如室内渲染 黄昏渲染 白天渲染都需要不同的设置
为了保持管理，这第一篇文章将是我将它用于建立一个白天渲染场景中的基本概念的概述。像材质设置，AO通行证，黄昏和室内拍摄设置以后还会来
Before getting into the settings, there are a few more notes. I am using V-Ray for Sketchup. This means the V-Ray interface is running inside of Sketchup. Things like the sun, cameras, and materials all speak to each other between the two programs. Changing the sun angle in Sketchup will change the sun angle in V-Ray. I typically adjust the sun angle in Sketchup to get the shadows exactly where I want them before moving to V-Ray. I also save the Sketchup scene that I plan to render in V-Ray by going to “View>Animation>Add Scene”. This is especially important if I am going to overlay Sketchup image exports on top of the V-Ray renderings or if I need to render the same view later on down the road.
在设置这里有一些笔记 我用v-ray for sketchup. 这意味着 v-ray 在sketchup 里面运行 像天光 相机和材质 在su里面改变天光角度在渲染时也有改变 我保存场景这步异常重要我在今后su输出图像和再次渲染
V-Ray Dialogue Box
                
                
The V-Ray settings dialogue box uses tabs that expand and contract keeping the settings a little more manageable to navigate. An important button to be familiar with is the “Load Defaults” button. This will take everything to the default V-Ray settings when the program was first installed. If I have been experimenting with settings and things are getting weird with the outputs, I will often hit this button to start from scratch. Next to that is the “Load” button which allows you to load past settings which have become a big time saver in our studio.
在V-Ray设置对话框中使用标签，膨胀和收缩，保持设置更易于管理导航 一个重要的按钮，熟悉的是“加载默认值”按钮 这将需要的一切到默认的V-Ray设置首次安装程序时 如果我一直在尝试设置，事情越来越怪异的输出，我会经常打这个按钮，从头开始 旁边的是“Load”按钮，让您加载这已成为一个大的节省时间在我们的演播室过去设置
Global Settings Tab
                
                
In this tab, I really only use the “Override Materials” check box. This will override all materials in the model and replace them with a single material color. This is the box I check when I create clay model renderings.
在这个选项卡中，我真的只能用“替代材料”复选框。这将覆盖所有的材料模型，并用单一材料的颜色代替。这是我检查时，我创建油泥模型效果图框
Camera Tab
                
                
                
                
This tab controls things like exposure of the rendering similar to how an SLR camera works. I usually leave the default settings the same except for the F-number which I change from “8” to “10”. This slightly darkens the final output so that the white materials don’t get washed out. For interior shots or dusk scenes where there is low light, these settings will need to be adjusted accordingly.
此选项卡控制之类的东西类似于如何单反相机作品的渲染曝光。我通常保留默认设置相同，除了F数这是我从“8”到“10”改变。这稍微变暗最终输出，使白材料没有得到淘汰。对于室内拍摄或黄昏场景中有弱光，这些设置都需要进行相应的调整
Environment Tab
                
                
This tab controls the overall lighting of the scene. The GI (Skylight) box controls the sun specifically. Again, the default V-Ray settings are tied to the Sketchup sun. Therefore, changing the sun angle in Sketchup changes the sun angle here in V-Ray. If you have a dusk shot, then you can tweak the sun color or use an HDRI image to generate the light. For this daytime rendering, I left everything at the default settings.
The “Reflection/Refraction (background)” controls what you see in the background/sky. Here, I often add a sky image so that it will be seen in the reflections of my model.
To add a sky, I choose the “M” in the “Reflection/Refraction(background)” box. In the drop down under the preview, I choose “TexBitmap”, and load a spherical sky image. I also make sure to choose “UVWGenEnvironment” in the drop down next to UVW Type. You can find spherical skies online and through Google image searches.
此选项卡控制现场的整体照明。在GI（天窗）框控制太阳特别。此外，默认的V-Ray设置绑SketchUp的太阳。因此，改变太阳的角度在SketchUp中改变这里的太阳角度的V-Ray。如果你有一个黄昏出手的话，你可以调整颜色的太阳或者使用HDRI图像来产生光。对于这个白天渲染，我离开了所有默认设置。
而“反射/折射（背景）”控制你的背景/天空看到。在这里，我常常添加的天空图像，它会在我的模型的反映可以看出。
要添加的天空，我选择了“反射/折射（背景）”中的“M”。在降预览下下来，我选择“TexBitmap”，并加载一个球形的天空图像。我也请务必在下拉列表中选择“UVWGenEnvironment”下来旁边UVW类型。您可以通过网上和谷歌图片搜索找到球的天空。
VFB Channels Tab
                
                
                
                
Here, you can set up extra channels to be generated along with the rgb color image. In other words, you create images that separate out information such as reflections, lighting, and shadows, which can then be used as separate layers in Photoshop. For example, I often select Reflection, Refraction, ZDepth, and Material ID for almost every rendering I do. The Material ID is especially helpful to make quick selections of materials.
在这里，你可以设置要随着RGB彩色图像生成额外的通道。换句话说，您创建分离出来的信息，如反射，灯光和阴影，然后可以用作独立的Photoshop图像图层。例如，我经常选择反射，折射，ZDepth和材质ID，几乎每一个渲染我做的。材质ID是特别有用做出快速选择材料。
Output Tab
                
                
This is where the resolution is set and where I tell V-Ray to save the file. For quick test renderings, I set the resolution to 1200×800. For final renderings, I will bump up the resolution to somewhere between 4500 and 5000 px though I often suggest students can get away with 3000 px images to save time.
If I need the proportions of my renderings to exactly match my Sketchup window, I will select the “Get view aspect” button. This grabs the aspect ratio of the Sketchup model space and applies it to the V-Ray aspect ratio. This is useful if you are overlaying Sketchup line work exports over the V-Ray rendering and want things to match up perfectly.
Finally, under “Render Output”, I check the box next to “Save Output”. Under that, I browse to a location where I want the files to be saved and save them as Tiffs. By choosing these options, V-Ray will automatically save the final images along with the channels once everything is finished rendering.
这是将分辨率设置在哪里，我告诉了V-Ray来保存文件。对于快速测试渲染，我将分辨率设置为1200×800。对于最终渲染，我会碰到了分辨率为4500之间和5000像素的地方，虽然我常常建议学生可以逃脱3000像素的图像，以节省时间。
如果我需要我的渲染比例，以我的Sketchup的窗口完全一致，我会选择“获取视图方面”按钮。此把持SketchUp的模型空间的纵横比，并将其应用到V - 射线宽高比。如果要叠加Sketchup的老本行出口过的V-Ray渲染和想要的东西完美地匹配起来，这非常有用。
最后，在“渲染输出”，我检查旁边的“保存输出”的框。在这一点，我浏览到我想要的文件保存的位置，并保存为TIFF格式。通过选择这些选项，的V-Ray会自动随一旦一切都完成渲染通道保存最终图像。
Indirect Illumination GI
                
                
                
                
In this tab, the only thing I am concerned with is the “Ambient Occlusion” box. Ambient occlusion will add shadows into the corners of the geometry which adds realism and clarity to the renderings. This is one of the reasons why I moved to V-Ray. Here, I check the box next to “On”, set the “Amount” to 1 (controls how dark the shadows are), change “Subdivs” to 16 (controls how smooth the shadows are), and set the “Radius” to 35 (how much the geometry will influence the shadows).
As I mentioned above, this is meant to be a brief overview of a typical daytime scene setup that I use. Sometime in the future, I will go over more complex stuff like night scenes, interior scenes, AO passes, dome lights, HDRI, etc. I will try to update this post as the software evolves or if there is information that I forgot to include.
在这个选项卡中，我所关心的唯一事情是“环境光遮蔽”框,即”环境阻光“框。环境闭塞会添加阴影在其中增加了真实感和清晰度的效果几何的角落。这就是为什么我搬到了V-Ray的原因之一。在这里，我检查（如何顺利的阴影控制），并设置“半径”下一个“开”，设置了“数量”为1（控制阴影多么黑暗的），变“细分值”为16箱35（几何多少会影响阴影）。
正如我上面提到的，这是命中注定的，我用一个典型的白天场景设置的简要概述。在将来某个时候，我将在更复杂的东西，如夜间场景，室内场景，AO通行证，顶灯，HDRI，等我会尽量为软件的发展来更新这个帖子，或者如果有，我忘了，包括信息。