Remove M_PIf to enable compilation on Windows (#272)

* Remove M_PIf to enable compilation on Windows

* Update test/src/scene/rcsAngleDistributionTest.cpp

Co-authored-by: Mateusz Szczygielski <[email protected]>

---------

Co-authored-by: Mateusz Szczygielski <[email protected]>

Author: prybicki

src/gpu/nodeKernels.cu

@@ -105,7 +105,7 @@ __global__ void kRadarComputeEnergy(size_t count, float rayAzimuthStepRad, float
 	constexpr float c0 = 299792458.0f;
 	constexpr float reflectionCoef = 1.0f; // TODO
 	const float waveLen = c0 / freq;
-	const float waveNum = 2.0f * M_PIf / waveLen;
+	const float waveNum = 2.0f * static_cast<float>(M_PI) / waveLen;
 	const thrust::complex<float> i = {0, 1.0};
 	const Vec3f dirX = {1, 0, 0};
 	const Vec3f dirY = {0, 1, 0};
@@ -142,7 +142,7 @@ __global__ void kRadarComputeEnergy(size_t count, float rayAzimuthStepRad, float
 
 	thrust::complex<float> BU = (-(apE.cross(-dirP) + apH.cross(dirT))).dot(rayDir);
 	thrust::complex<float> BR = (-(apE.cross(dirT) + apH.cross(dirP))).dot(rayDir);
-	thrust::complex<float> factor = thrust::complex<float>(0.0, ((waveNum * rayArea) / (4.0f * M_PIf))) *
+	thrust::complex<float> factor = thrust::complex<float>(0.0, ((waveNum * rayArea) / (4.0f * static_cast<float>(M_PI)))) *
 	                                exp(-i * vecK.dot(hitPos[tid]));
 
 	//	printf("GPU: point=%d ray=??: dist=%f, pos=(%.2f, %.2f, %.2f), norm=(%.2f, %.2f, %.2f), BU=(%.2f+%.2fi), BR=(%.2f+%.2fi), factor=(%.2f+%.2fi)\n", tid, hitDist[tid],

test/src/scene/rcsAngleDistributionTest.cpp

@@ -24,8 +24,8 @@ const auto minElevation = -7.5f;
 const auto maxElevation = 7.5f;
 const auto azimuthStep = 0.05f;
 const auto elevationStep = 0.05f;
-const auto azimuthRad = (maxAzimuth - minAzimuth) * M_PIf / 180.0f;
-const auto elevationRad = (maxElevation - minElevation) * M_PIf / 180.0f;
+const auto azimuthRad = (maxAzimuth - minAzimuth) * std::numbers::pi_v<float> / 180.0f;
+const auto elevationRad = (maxElevation - minElevation) * std::numbers::pi_v<float> / 180.0f;
 
 std::vector<rgl_mat3x4f> genRadarRays()
 {