shaders: Fix Visual Studio build

2 files changed, 4 insertions, 2 deletions

diff --git a/shaders/CMakeLists.txt b/shaders/CMakeLists.txt
index 86b6db1..437476b 100644
--- a/shaders/CMakeLists.txt
+++ b/shaders/CMakeLists.txt
@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.15 FATAL_ERROR)
-project(shaders CXX)
+project(shaders)
 
 set(DEMO_NEEDS_DEAR_IMGUI TRUE)
 set(DEMO_NEEDS_SDL3       TRUE)
diff --git a/shaders/main.cc b/shaders/main.cc
index 443f08e..11688b5 100644
--- a/shaders/main.cc
+++ b/shaders/main.cc
@@ -25,6 +25,8 @@
 // Geometry
 // --------------------------------------------------------------------------------
 
+constexpr float Pi = 3.1415926535f;
+
 template <typename T>
 static inline T Min(T lhs, T rhs)
 {
@@ -45,7 +47,7 @@ static inline T Clamp(T val, T vmin, T vmax)
 
 static inline float Radians(float degrees)
 {
-  return degrees * M_PI / 180.0f;
+  return degrees * Pi / 180.0f;
 }
 
 class Vec2