Introduction to AutoCAD 2009 2D and 3D Design- P7

Introduction to AutoCAD 2009 2D and 3D Design- P7: The purpose of writing this book is to produce a text suitable forstudents in Further and/or Higher Education who are required to learnhow to use the CAD software package AutoCAD 2009. Studentstaking examinations based on computer-aided design will fi nd thecontents of the book of great assistance.
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Introduction to AutoCAD 2009 2D and 3D Design- P7 288 CHAPTER 15 Introduction to AutoCad 2009 Fig. 15.25 First example – Rendering a 3D model – two-view projection Fig. 15.26 Place the model in the ViewCube/Top view Fig. 15.27 The Point Light icon in the Visualize/Lights panel Fig. 15.28 The Lighting – Viewport Lighting Mode warning windowPlease purchase PDF Split-Merge on www.verypdf.com to remove this watermark. Rendering 289 of click at center of model (need Z): enter 500 CHAPTER 15 right-click Enter an option to change [Name/Intensity/Status/ shadoW/Attenuation/Color/eXit] eXit : enter n (Name) right-click Enter light name Pointlight1 : right-click Enter an option to change [Name/Intensity/ Status/shadoW/Attenuation/Color/eXit] eXit : right-click Command: 5. There are several methods by which Distant lights can be called: by selecting Default Distant Light from the Generic Lights palette (Fig. 15.29); with a click the on the Distant icon in the Vizualise/Lights panel; or by entering distantlight at the command line. No matter which method is adopted, the Lighting – Photometric Distant Lights dialog (Fig. 15.30) appears. Click Allow Distant lights and the command line shows: Fig. 15.29 The Generic Command: _distantlight Lights palette showing the Default Distant Light Specify light direction FROM 0,0,0 or [Vector]: selected enter .xy right-click of click to the left and below the 3D model (need Z) enter 400 right-click Specify light direction TO 1,1,1 : enter .xy right-click of click at center of mode (need Z) enter 70 right-click Command: Fig. 15.30 The Lighting – Photometric Distant Lights dialogPlease purchase PDF Split-Merge on www.verypdf.com to remove this watermark. 290 Introduction to AutoCad 2009 6. Place another Distant Light (Distantlight2) in the same position TO CHAPTER 15 and FROM the front and below the model at Z of 300. 7. When the model has been rendered if a light requires to be changed in intensity, shadow, position or colour, click the Light List icon in the Visualize/Lights panel (Fig. 15.31) and the Lights in Model palette appears. Double-click a light name and the Properties palette for the light appears in which modifications can be made (Fig. 15.32). Amendments can be made as thought necessary. Fig. 15.31 Selecting the Lights icon from the Visualize/Lights panel Fig. 15.32 The Lights in Model and Properties palettesPlease purchase PDF Split-Merge on www.verypdf.com to remove this watermark. Rendering 291 CHAPTER 15 Note In this example the Intensity factor has been set at 1 for lights. This is possible because the lights are close to the model. In larger size models the Intensity factor may have to be set to a higher figure. ...