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Re-implemented vec3 constructor to allow for uninitialized declaration (cuda does not allow dynamic intialization)

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Martin Opat 2024-12-30 12:08:08 +01:00
parent 41cb852a29
commit 8e4c5290d7
1 changed files with 11 additions and 10 deletions
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21
src/linalg/vec.h
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@ -3,26 +3,27 @@
#include <cuda_runtime.h> #include <cuda_runtime.h>
#include <cmath> #include <cmath>
struct Vec3 { // TODO: Maybe make this into a class struct Vec3 { // TODO: Maybe make this into a class ... maybe
double x, y, z; double x, y, z;
__host__ __device__ Vec3() : x(0), y(0), z(0) {} static __host__ __device__ Vec3 init(double x, double y, double z) {Vec3 v = {x, y, z}; return v;}
__host__ __device__ Vec3(double x, double y, double z) : x(x), y(y), z(z) {} static __host__ __device__ Vec3 zero() { return Vec3::init(0, 0, 0); }
__host__ __device__ Vec3(const double (&arr)[3]) : x(arr[0]), y(arr[1]), z(arr[2]) {} static __host__ __device__ Vec3 init() { return zero(); }
static __host__ __device__ Vec3 init(const double (&arr)[3]) { return Vec3::init(arr[0], arr[1], arr[2]); }
__host__ __device__ Vec3 operator+(const Vec3& b) const { return Vec3(x + b.x, y + b.y, z + b.z); } __host__ __device__ Vec3 operator+(const Vec3& b) const { return Vec3::init(x + b.x, y + b.y, z + b.z); }
__host__ __device__ Vec3& operator+=(const Vec3& b) { x += b.x; y += b.y; z += b.z; return *this; } __host__ __device__ Vec3& operator+=(const Vec3& b) { x += b.x; y += b.y; z += b.z; return *this; }
__host__ __device__ Vec3 operator-() const { return Vec3(-x, -y, -z); } __host__ __device__ Vec3 operator-() const { return Vec3::init(-x, -y, -z); }
__host__ __device__ Vec3 operator-(const Vec3& b) const { return Vec3(x - b.x, y - b.y, z - b.z); } __host__ __device__ Vec3 operator-(const Vec3& b) const { return Vec3::init(x - b.x, y - b.y, z - b.z); }
__host__ __device__ Vec3& operator-=(const Vec3& b) { x -= b.x; y -= b.y; z -= b.z; return *this; } __host__ __device__ Vec3& operator-=(const Vec3& b) { x -= b.x; y -= b.y; z -= b.z; return *this; }
__host__ __device__ Vec3 operator*(double b) const { return Vec3(x * b, y * b, z * b); } __host__ __device__ Vec3 operator*(double b) const { return Vec3::init(x * b, y * b, z * b); }
__host__ __device__ Vec3& operator*=(double b) { x *= b; y *= b; z *= b; return *this; } __host__ __device__ Vec3& operator*=(double b) { x *= b; y *= b; z *= b; return *this; }
__host__ __device__ double dot(const Vec3& b) const { return x * b.x + y * b.y + z * b.z; } __host__ __device__ double dot(const Vec3& b) const { return x * b.x + y * b.y + z * b.z; }
__host__ __device__ Vec3 cross(const Vec3& b) const { return Vec3(y * b.z - z * b.y, z * b.x - x * b.z, x * b.y - y * b.x); } __host__ __device__ Vec3 cross(const Vec3& b) const { return Vec3::init(y * b.z - z * b.y, z * b.x - x * b.z, x * b.y - y * b.x); }
__host__ __device__ Vec3 normalize() const { double len = sqrt(x * x + y * y + z * z); return Vec3(x / len, y / len, z / len); } __host__ __device__ Vec3 normalize() const { double len = sqrt(x * x + y * y + z * z); return Vec3::init(x / len, y / len, z / len); }
}; };
typedef Vec3 Point3; typedef Vec3 Point3;