PI in HLSL | GameDev.net

Original Post

Mar 30, 2009 at 2:32 PM

Hi there, I'm currently a bit stomped about how to use PI in a pixel shader... I would have assumed that HLSL has PI defined but that doesn't seem to be the case and searching the net unfortunately doens't yield useful results... anyone know a method other than passing PI into the shader through a constant buffer? Thanks Marcel

MJP

Mar 30, 2009 at 2:36 PM

Uhhhh...you mean other than doing this?

static const float PI = 3.14159265f;

GoodFun

Mar 30, 2009 at 5:15 PM

yup, other than doing that :) somehow I would have expected HLSL to have PI defined to the maximum precision it can handle... but I guess I'll just go with a const then

Topic Locked