Shader Model 3 Skachat Draiver -
Shader model 3 (HLSL reference) - Win32 apps - Microsoft Learn
For technical analysis and implementation details regarding Shader Model 3.0, you can refer to these papers and guides: shader model 3 skachat draiver
NVIDIA's Shader Model 3.0, Best Practices provides a deep dive into GPU/CPU bounds and hardware features like instancing and shadow maps. Shader model 3 (HLSL reference) - Win32 apps