AutoCAD Tutorial

AutoCAD 3D Modeling: Render Window

February 24, 2004

The output image of the render operation can be diverted to a special window called Render Window. You can use the Render Preferences dialog box and alter the destination to Render Window. The following tutorial shows you how to benefit from the window.

Note: This tutorial is designed for AutoCAD 2004 though might be applicable to other releases.

1. Download and then open r16_render_window.dwg. The file contains the model of an armchair on a flat circular plane [Figure 1].

Note: If you are using AutoCAD 2002 or an earlier release download r15_render_window.dwg.

Figure 1

2. Invoke the RPREF command (select View > Render > Preferences). The Render Preferences dialog box appears [Figure 2].

Figure 2

3. Make sure that Skip Render Dialog option is selected. The destination is set to Render Window and the Apply Materials option is deselected. Click OK.

4. Invoke the RENDER command (Select View > Render > Render). The Render Window shows the rendered image [Figure 3]. Maximize the window.

Figure 3 -
click on image to enlarge

5. Click the first button on the right side of the Render window toolbar to enable the Options dialog box [Figure 4]. You could alternatively select Options on the File menu.

Figure 4

6. In Size in Pixels section, select the 1024768 option. Deselect the Fit in Window option and then click OK.

7. From Window menu click the Reuse Window option to deselect it. Also close the current open image.

8. Back to AutoCAD invoke the RENDER command. The result appears in the Render Window as shown here [Figure 5]. The result that you get may be different from the following image.

Figure 5 -
click on image to enlarge

9. Back to AutoCAD window. Invoke the RPREF command (select View > Render > Preferences). Select the Apply Materials option and then click OK.

10. Repeat the Render.

11. In the Render window, from the Window menu select Tile. From the Files menu select Options. Select the Fit in Window option and then click OK. You can compare the results as shown in figure 6.

Figure 6 -
click on image to enlarge

12. Click the window to the left. Click the Save button on the toolbar (i.e. the second button to the left of the toolbar). The Save BMP dialog box appears. Save the image as a bitmap file.

About the Author

Alireza Parsai is the founder of He is a mechanical engineer with more than 12 years experience with AutoCAD. Alireza is an Autodesk Authorized Author, the AutoCAD consultant for Al Khawarizmi Institute, a contributing editor for Augiworld magazine, a writer for CAD Digest, and an instructor for AUGI Training Program. He has written 8 books in Farsi, 3 booklets in English, and more than 100 articles for different magazines and newsletters. You can reach Alireza at or visit his website  

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