ps渲染效果圖教程（ps怎麼做渲染效果）

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如何通過PS做出漂亮的風格化平面圖

How to Make Beautiful Stylized Floor Plans Using Photoshop

本文最初由RenderPlan發表，標題為“如何通過PS渲染從CAD匯出的平面圖”。

無論是面對客戶彙報方案還是在設計競賽中脫穎而出，通過PS來渲染平面圖都是至關重要的工作。無論何時，你出版書籍、編輯網站，抑或製作演講稿，你的平面設計的出圖質量便也是你的能力說明。讓我們一步一步慢慢學習。

This article was originally published by RenderPlan as "How to Render an AutoCAD Floor Plan with Photoshop."

Rendering plans in Photoshop is an essential part of presenting your work to your client or to convince a competition jury to pick your design as a winner. Whenever you publish your work for books, websites or presentations the design quality of your plans will be your business card to future clients and the audience you build around your practice. Let’s start step by step.

Courtesy of RenderPlan

1、在CAD中繪製平面圖

在這篇文章中，我們將說明如何將CAD最初匯出的平面圖，通過PS操作之後，變成具有美感的渲染平面圖。圖面的藝術性來源於輕微的色彩感與肌理感，為了加快你的工作流程，你應該以你自己的方式繪製出易於調整的CAD圖形，因為這樣在後期有助於PS軟體的操作。

上圖展示的是匯出前的簡單辦公樓平面圖，以下是你在CAD中應該做的事：

1.1用不同的圖層繪製你的圖形

這個步驟聽上去普通，但卻至關重要，因為這樣你能夠將CAD檔案按圖層匯出至不同的PDF檔案。

1.2將牆體設定為填充模式

正如你在CAD檔案中看到的那樣，以下幾個圖層應當單獨設定並且填充：

  • 混凝土牆
  • 輕質牆體
  • 樓梯
  • 房間
  • 走廊
  • 背景
  • 其他任何你認為應當在PS中單獨操作的圖層也可以單獨設定。

1.3為每個要單獨匯出的元素設定單獨佈局框

你可以為每個需要單獨匯出的元素設定佈局框，這些佈局視窗的比例與大小都必須相同。在佈局框中只顯示要匯出的圖層，然後凍結其他圖層。使用CAD中的“釋出”功能，你可以簡單的將佈局框導成PDF檔案。你的佈局框的匯出大小也就是最終PS的成圖大小。下面的圖顯示了我在CAD中建立的不同佈局框，然後我會將這些佈局框單獨匯出至PDF檔案。

1. Structuring your CAD drawing in AutoCAD

In this article, we will cover the principle steps of how to export a floor plan drawing from AutoCAD and render it with Adobe Photoshop. The art is to create aesthetic looking plans that are not too overloaded with colors and textures. In order to speed up your workflow, you should already structure your CAD drawing in a way that helps you to be faster in Photoshop later.

The graphic above shows the principle drawing style of a simple office floor plan in AutoCAD right before exporting. Here are the things you should do in your AutoCAD DWG:

1.1 Structure you drawing on different layers

This is of course not a magical advice but it really critical to do so and to be able to export different parts of you drawing to single PDF files later.

1.2. Use solid hatches to fill parts of your floor plan

As you see in the AutoCAD screenshot graphic above the following parts of the floor plan drawings are filled with solid hatches on unique layers:

  • Concrete walls
  • Light walls
  • Staircases
  • Rooms
  • Corridors
  • Background hatch
  • Anything else you want to have as a unique selection in Photoshop later

1.3. Create a layout window for each element you want to export separately

You should create a layout window with the same fixed size and scale for each part of the drawing you want to export. In the layout frame you show only the layer you want to export. Freeze all others. With the “Publish” function of AutoCAD you could simply export the entire layout windows to PDF files in one steps. The outcome size of your layout windows will be the size of your Photoshop document later. See the graphic below, which shows the different layout windows I created in AutoCAD to export my drawing to single PDF files.

Courtesy of RenderPlan

2、將CAD檔案匯出至PDF檔案

你是否按照上面的步驟完成了CAD部分的工作？那麼我們繼續往下：

2.1將CAD檔案匯出至多個PDF檔案

為什麼需要分別匯出？因為在渲染平面的過程中，你可以按照需要建立不同的PSD檔案。為了實現這一目的，你可以凍結其他圖層，只操作需要的圖層資訊。在這個辦公樓案例中，我匯出了10個PDF檔案。這聽起來有些繁瑣，但實際上是後期節約時間的必要步驟。

2.2在PS中開啟PDF檔案，解析度設定為200dpi

如果你將PDF在PS中開啟，就會彈出一個視窗詢問你需要將開啟檔案設定為多少畫素，我一般設定為200dpi，因為這個資料能夠在保證高質量列印效果的同時，又不過分佔用電腦記憶體。如果你的電腦足夠快，或者你想要特別高清的影象，可以按照書中所說設定為300dpi，但事實上沒有必要設定過高的解析度，因為這會導致檔案過大，從而降低電腦執行速度。

2.3將所有的PDF檔案放置在一個PSD檔案中

現在，你的PS裡有10個不同的PDF檔案，下一步是將這些檔案放置在同一個PSD檔案當中，由於所有的PDF檔案的大小完全相同，你便可以直接將這些圖層複製到一個檔案中，再右鍵單擊該圖層，選擇你想要收集所有元素的檔案。我總是將檔案命名為Lines.pdf。完成後，你應該將該文件儲存至PSD檔案，然後關閉其他檔案。下圖是我建立PSD檔案時的圖層，這是為之後的上色和製作肌理做準備。

2. Exporting your DWG drawing to PDF files

Have you finished your CAD work and structured your drawing the way explained above? Great, now you are ready for the next step:

2.1 Export your drawing to multiple PDF files

Why multiple? Because this is necessary to structure your Photoshop PSD file into the elements you need for rendering your plan. In order to do so, you should export single layers of your DWG by freezing all others layers and using the layout window you created for the object. I exported 10 different PDF files for this office floor plan case study. Sounds a lot, but you will save the time later when it comes to photoshopping.

2.2 Open your PDF Files in Photoshop with 200 dpi

If you open your exported PDF Files with Photoshop you will see a pop-up screen that will ask you with how many pixels you want to open the file. I always use 200 dpi because it is enough for high-quality printing and keeps the files size manageable. If you have a fast Mac or PC engine and want a really high quality, let’s say for a book publishing, then 300 dpi would be good for you. But there is no need to go higher because your file size will explode and your computer will slow down.

2.3. Layer all PDF files in one PSD file

You have 10 different PDF files opened in Photoshop now. Next step is to layer those files in one file. Since all of the documents have the exact same image size you can simply duplicate layers into one master file by right-clicking on the layer and choosing the file you want to collect all of the elements. I always use the Lines.pdf as my master document. Once finished you should save that file to a PSD file and close all the others. The following graphic shows how my raw layered PSD file looks and how I sort the layers in order to get ready for coloring and texturing.

Courtesy of RenderPlan

3、在PS中渲染你的平面圖

下面的步驟十分有趣。你已經把未處理的PDF檔案放置在同一個PSD檔案中，接下來你該準備新增色彩與肌理，這樣你的平面圖將會看起來更棒。

3.1新增色彩與肌理

在PS中新增色彩與肌理的方法很多，接下來的步驟將會很快。你已經單獨將牆體、地板以及傢俱等元素列出來，接下來你可以為這些不同的圖層新增不同的色彩。進入你的圖層面板，雙擊任意一個圖層房間或者走廊，此時螢幕將彈出以下視窗：

3. Rendering your plan in Photoshop

Now we are coming to the fun part. You have sorted your raw PDF elements in one Photoshop PSD file. This is the point where you are ready to add colors and textures so your plan will look great for publishing.

3.1 Adding textures and colors

There are of course many ways to add colors and textures with Photoshop. But you are prepared to be really fast now. Why? Because you have already all the selections for the separate plan elements like walls, floor or furniture. Let me show you how simply you could add different colors to your floor plan. Go to your layer palette and double click on the hatch layers of the rooms or corridors. The following window will pop up:

Courtesy of RenderPlan

為了建立一個精緻與抽象的平面，你可以用混凝土紋理圖片疊加到圖層中，為圖層新增肌理。如果你想要新增更多不同的肌理型別，你可以從cgtextures.com網路上按照需求下載不同的肌理元素。為了使平面圖呈現紅色的效果，我將色彩疊加到圖層中，並且將圖層混合模式設定為“正片疊底”，再將房間的不透明度設定為30%，走廊的不透明度設定為10%，這時將呈現如下效果：

In order to create a subtle and abstract looking surface you can use a concrete pattern and overlay it on your layer. If you want to choose from a wide range of textures just browse cgtextures.com and you will find everything you need. For the red look I use a color overlay and put the blend mode on “multiply” and the opacity on 30% for the office rooms. The corridors are on 10% opacity. The layers will look like this then:

Courtesy of RenderPlan

以下是各圖層的設定引數，列出來以供參考：

  • 線框圖層：正片疊底、不透明度75%
  • 文字圖層：正片疊底、不透明度75%
  • 傢俱填充圖層：圖層效果—顏色疊加：白色、RGB 255/255/255
  • 混凝土牆體填充圖層：圖層效果—顏色疊加：黑色、RGB 0/0/0、不透明度70%
  • 分隔牆體填充圖層：圖層效果—顏色疊加：黑色、RGB 0/0/0、不透明度50%
  • 欄杆填充圖層：圖層效果—顏色疊加：白色、RGB 255/255/255
  • 樓梯填充圖層：圖層效果—顏色疊加：紅色、RGB 255/0/0、不透明度30%、圖層效果：肌理模式
  • 房間填充圖層：圖層效果—顏色疊加：紅色、RGB 255/0/0、不透明度30%、圖層效果：肌理模式
  • 走廊填充圖層：圖層效果—顏色疊加：紅色、RGB 255/0/0、不透明度10%、圖層效果：肌理模式
  • 背景填充圖層：白色填充

圖層的順序與PSD中的順序相同。下圖呈現的是當前的結果，最終的成圖便是這樣，我們唯一需要做的就是新增陰影。

Here is a list of the layers of the floor plan PSD with the layer settings I use to create the style below:

  • Lines Layer Layer Setting: Multiply, 75% Opacity
  • Text Layer Layer Setting: Multiply, 75% Opacity
  • Furniture Filling Layer Layer Effect > Color overlay: White, RGB 255/255/255
  • Concrete Wall Filling Layer Layer Effect > Color overlay: Black, RGB 0/0/0, 70% Opacity
  • Dry Wall Filling Layer Layer Effect > Color overlay: Black, RGB 0/0/0, 50% Opacity
  • Balustrade Filling Layer Layer Effect > Color overlay: White, RGB 255/255/255
  • Stair Case Filling Layer Layer Effect > Color overlay: Red, RGB 255/0/0, 30% Opacity Layer Effect > Pattern overlay: Concrete Pattern
  • Room Filling Layer Layer Effect > Color overlay: Red, RGB 255/0/0, 30% Opacity Layer Effect > Pattern overlay: Concrete Pattern
  • Corridor Filling Layer Layer Effect > Color overlay: Red, RGB 255/0/0, 10% Opacity Layer Effect > Pattern overlay: Concrete Pattern
  • Background Filling Layer Just a white filling

The order of the layers is like you can sort them in your PSD. See the outcome of those easy steps below. This is the final rendered floor plan. The only thing you still have to do is to add shadows!

Courtesy of RenderPlan

3.2為你的平面圖建立陰影

我們需要通過陰影讓圖面更有立體感。陰影對於凸顯空間、高度以及設計的深度具有強大的作用。我一般習慣於直接在CAD檔案中新增陰影，然後將陰影圖層直接匯出至PDF檔案。然後你可以將它置於其他圖層之上，並填充為黑色，圖層混合模式設定為正片疊底，不透明度設定為15%至25%，這個步驟就完成了。

另一種方法是直接在PS中建立陰影。你可以用矩形選框工具選擇出陰影的區域，然後填充黑色。事實上，直接在CAD中建立陰影更加準確快捷，但這取決於個人的喜好。

3.2 Creating shadows for your floor plan

We still have to create the shadows, so the floor plan will look more plastic. Shadows are great for understanding the different spaces, heights, and depths of the design. I am a huge fan of drawing my shadows already in AutoCAD and exporting them in a single PDF file like the method explained above. You can then easily import them on a layer above all other layers. Fill the shadow hatch with black color, set the layer on multiply and 15-25% Opacity. And you are ready.

The other way is to create them in Photoshop on a new layer with the rectangular marquee tool (M) and the paint bucket for filling them with black. I like the AutoCAD way more because it is more accurate and faster for me but this would depend on your skills of course.

Courtesy of RenderPlan

3.3選擇你想要的圖面效果

完成上述步驟後，你建立出了一個PSD檔案，你便可以輕鬆地運用圖層效果來改變你的平面效果。下圖是我設計的平面圖，如果你不喜歡紅色，你可以換成其他的色彩。

3.3 Choose the graphical style you want

Once you are done with the steps described above you have created a PSD file with which you could easily play around to change the output styles of your floor plan graphic. By just changing the layer effects I created the following design styles shown in the graphic below. You might want to do the same in caseattachimg]Courtesy of RenderPlan

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