Winter Special: Part 2

由专筑网刘庆新编译

追随我的帖子一段时间的人会发现我去年的这个时候曾制作了一个冬景渲染图，描述了怎样将一些渲染转变为雪景。那是我曾经制作的为数不多的雪景图之一。自此，我又制作了另一个冬景图，所以按照惯例，我以一个新的sketchup模型作为开始，当然新模型还需要进一步改进，但是在这张冬景图中够用了。

开始我对场景的制作完全没有想法。这也许解释了为什么我开始仅用典型的日景kerkythea渲染图进行渲染。

Those of you who have followed my site for a while may remember that I created a winter scene post last year right around this time describing how to turn any rendering into a snow scene. It was one of the few snow scenes that I had ever created. Since then,  I have yet to produce another winter scene so I thought I would start a tradition. I have been working on a new sketchup model (seen in last weeks post) which still needs to be developed further but decided it was far enough along to be used in this winter scene illustration.
I initially didn’t have any idea what look/atmosphere I was going for. That may explain why I started out with just a typical daytime kerkythea rendering.

但是当我在Photoshop中进行后期制作时，图象变得比较暗，场景也阴暗了。因为现在图正在逐渐变成夜景，我开始新的Kerkythea渲染，将塔建筑内部渲染上灯光。我并没有尝试将周围建筑也点亮，因为我知道这样会增加渲染时间。

However, once I entered into Photoshop post processing, the illustration moved to a darker, overcast scene. Since the illustration was essentially going to be a night scene now, I started a new Kerkythea rendering with my tower design lit up from the inside. I didn’t even try to light up the surrounding buildings because I knew that it would significantly add to the rendering time.

如果你看上面两个渲染图，你会发现我渲染的日景中，塔建筑立面的玻璃上充满着反射光。而夜景中，塔建筑立面的玻璃上则没有反射光。

If you look at the above two renderings, you will notice that I rendered the daytime scene with full reflection in the glass (just for the tower), while I rendered the night time scene with almost no reflection. This allowed me to combine the two and give me full control of how much reflection to add to the tower. I did this by cutting out the lit tower, and copying it to the daytime rendering. I then adjusted the opacity of the lit tower layer  until I found the rigtalance of relection and transparency in the glass.

这步操作完成后，我开始给周围建筑的玻璃和门进行光渲染。然后，我用第二个路径高显了被窗户透出的光照亮的石路表面。为了确保表现出窗户里也有一些反射光的效果，我在玻璃上叠加了另一个深度的图层。在这张图里，我也开始给地面叠加雪。这很容易，我通过在谷歌上搜索“雪路面”找到一些图，然后把它们抠出来粘贴在我的图里面。

Once I had that down, I began painting in light to the surrounding building windows and doors. I then did a second pass highlighting the surfaces on the stone that were being lit by the windows. I also made sure to keep some of the reflection in the windows to add another level of depth to the glass. Also in this image, I began adding snow to the ground. This was much easier than it looks. I did some google image searches for “snowy roads” and then cut and paste.

我想在图中添加一些被雪覆盖的汽车，想不到，这却很难找到。因为车的摆放角度要合适，上面还要有雪覆盖着。我也花了一些时间在建筑的一些边缘处渲染了雪，添加了一些波士顿当地的灯柱和交通信号灯。

I knew that I wanted to add some snow covered cars to the illustration. It was surprisingly hard to find cars at the correct angle with snow on them for this illustration. I also spent some time painting in snow on some of the ledges of the buildings and adding local Boston lamp posts and traffic lights.

最后，我添加了落雪，完成了这张冬景图。你也许注意到了我纠正了垂直透视，因此建筑不会再向建筑中心倾斜。就像是上面提到的，在去年的博文里，我创建了一个教程来创建雪，你可以点击这里找到。冬景图的渲染要比想象中容易。我强烈建议亲自体验一下这些技术手法，看看能制作出什么效果的图。

Finally, I added falling snow to complete the winter scene. You may also notice that I corrected the verticals so that the buildings no longer lean into the center of the image. As mentioned above, I created a tutorial on creating snow in last years post which can be found HERE. These winter scenes are easier to create than you might think. I strongly suggest experimenting with these techniques and seeing what you can come up with.

节日快乐！

Happy Holidays！

出处：本文译自visualizingarchitecture.com/，转载请注明出处。