Advanced 3D Game Programming with DirectX 9.0 by Peter Walsh

By Peter Walsh

Textual content is an replace to the previous textual content, complex 3D video game Programming utilizing DirectX 8.0; concentrating on implementation alterations to DirectX 9.0. For programmers who're new to pictures and online game programming. Softcover. DLC: computing device games--Programming.

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Direct3D was further split into two groups—Immediate Mode, which provided a low-level interface to the 3D graphics hardware that was generally considered very complex but fast. Retained Mode provided a higher-level, easy to use interface to the hardware, but it was bloated, inflexible, and slow. 0. There was just nothing left to do with it, and most resources were being focused on Direct3D. The learning curve for DirectDraw was too steep; it was too complicated and required too many tedious steps to set up in code.

Short) LOWORD(lParam) The x-location of the mouse, relative to the upper left corner of the client area. (short) HIWORD(lParam) The y-location of the mouse, relative to the upper left corner of the client area. LOWORD(wParam) Key flags. This helps you tell what the keyboard state is for special clicks (such as Alt-left click, for example). Test the key flags to see if certain flags are set. The flags are: MK_CONTROL: Indicates the Control key is down. MK_LBUTTON: Indicates the left mouse button is down.

A COM object is basically a block of code that implements one or more COM interfaces. (I love circular definitions like this. ") A COM interface is just a set of functions. Actually, it's implemented the same way that almost all C++ compilers implement virtual function tables. In C++, COM objects just inherit one or more abstract base classes, which are called COM interfaces. Other classes can get a COM object to do work by calling functions in its interfaces, but that's it. There are no other functions besides the ones in the interfaces, and no access to member variables outside of Get/Set functions existing in the interfaces.

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