LYGIA Shader Library

Dependencies:

• lygia/math/dot.cuh
• lygia/math/operations.cuh
• lygia/math/math.cuh

Check it on Github

////////////////////////////////////////////////////////////////////////////////
// normalize
////////////////////////////////////////////////////////////////////////////////

#ifndef FNC_NORMALIZE
#define FNC_NORMALIZE

#ifndef __CUDACC__
inline float rsqrtf(float x) { return 1.0f / sqrtf(x); }
#endif

inline __host__ __device__ float2 normalize(float2 v) {
    float invLen = rsqrtf(dot(v, v));
    return v * invLen;
}

inline __host__ __device__ float3 normalize(float3 v) {
    float invLen = rsqrtf(dot(v, v));
    return v * invLen;
}

inline __host__ __device__ float4 normalize(float4 v) {
    float invLen = rsqrtf(dot(v, v));
    return v * invLen;
}

#endif