Branch based on shader model

SHADER_TARGET is defined to a numeric value that matches the ShaderA program that runs on the GPU. More info
See in Glossary target compilation model (that is, matching #pragma target directive). For example, SHADER_TARGET is 30 when compiling into Shader model 3.0. You can use it in Shader code to do conditional checks. For example:

#if SHADER_TARGET < 30
    // less than Shader model 3.0:
    // very limited Shader capabilities, do some approximation
#else
    // decent capabilities, do a better thing
#endif

Additional resources

• HLSL pragma directives reference
• HLSL pragma target command reference
• HLSL pragma require command reference