SV_POSITION과 POSITION 의 차이?

https://forum.unity.com/threads/what-is-the-difference-between-float4-pos-sv_position-and-float4-pos.165351/

what is the difference between "float4 pos:SV_POSITION"and "float4 pos;"

 

SV_POSITION은 의미체계(sementic)이다 

그래픽 파이프라인을 통해 데이터들이 어떻게 이동하는지 엔진에게 알려준다 

 

참고

https://docs.unity3d.com/Manual/SL-ShaderSemantics.html

https://mgun.tistory.com/1848

https://blog.naver.com/lifeisforu/80072891298

https://docs.microsoft.com/en-us/windows/win32/direct3dhlsl/dx-graphics-hlsl-semantics?redirectedfrom=MSDN