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[DirectX 8.1 C/C++ Programmer's Reference] Volume Texture Resources (18.6792378241619%)

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[DirectX 8.1 Visual Basic Programmer's Reference] Volume Texture Resources (18.6792378241619%)

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[DirectX 8.1 C/C++ Programmer's Reference] Volume Envelope Effect (17.3739516051287%)

DirectX 8.1 (C++) > DirectShow > DirectShow Editing Services C++ Reference > Transitions and Effects