[DirectX 8.1 C/C++ Programmer's Reference] texdp3 (50.5227272727273%)

DirectX 8.1 (C++) > DirectX Graphics > Reference > Pixel Shader Reference > Instructions

[DirectX 8.1 Visual Basic Programmer's Reference] texdp3 (50.5227272727273%)

DirectX 8.1 (Visual Basic) > DirectX Graphics > Reference > Pixel Shader Reference > Instructions