Contents  Introduction  What is IM?  Execute Buffers  Steps to Create  an Application  Scene Management  Sample App  IM Objects  DrawPrimitive  Comparing Modes  Summary  Printable version

Summary

Appendix A

The complete source of the sample application is presented here.

To summarise, we can say that immediate mode is a lower-level interface to providing 3D capabilities in an application. Even though it is a low-level interface, its support is well defined. An advantage of using the immediate mode is that even though it does not provide a built-in geometry engine, we can use custom algorithms, to make the application perform better. The only possible limitation of writing a custom application is that the application may have a performance hit in case the engine is not written properly and efficiently.

After covering the different features of the immediate mode, followed by a sample application, we covered some of the objects provided by the immediate mode, which can be used by an application.

References

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Mehmat Adalier. Direct3D Immediate Mode Part I. Intel, Developers Relations Group, July 1997. XDC, July 97, Session 124.

2

Microsoft Corporation. DirectX SDK (ver 3.0, 5.0) Reference. Microsoft Corporation, 1996-97.

3

Microsoft Corporation. Direct3D Reference Manual. Microsoft Corporation, 1997. Visual Studio Help.

4

Microsoft Corporation. Direct3D Specification : DrawPrimitive API Extensions, ver 0.7. Microsoft Corporation Web Page (www.microsoft.com/directx), 1 Feb 1997.

5

DrawPrimitive White Paper. DirectX Developer Pages (www.geocities.com/SiliconValley/Way/8390/draprim.html), 1997.

6

Mark Feldman. DirectX 5.0 DrawPrimitive Tutorial. DirectX Developer Pages (www.geocities.com/SiliconValley/Way/8390/drawprim.html), 1997.

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Hillarie Klempner. Direct3D Immediate Mode Part II. Intel, Developers Relations Group, July 1997. XDC, July 97, Session 224.

10

Bipin Patwardhan. Direct3D Retained Mode. National Centre for Software Technology, Mumbai, India, Aug-Sep 1997. Intel Developers Conference, Aug-Sep 97.

11

Bipin Patwardhan. Overview of Direct3D. National Centre for Software Technology, Mumbai, India, Aug-Sep 1997. Intel Developers Conference, Aug-Sep 97.

12

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David Rogers. Procedural Elements for Computer Graphics. McGraw-Hill Book Company, 1st edition, 1985.

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