LYGIA Shader Library

Use:

mirror(<vec2|float> x)

Check it on Github

#ifndef FNC_MIRROR
#define FNC_MIRROR
float mirror(in float x) {
    float f = fract(x);
    float m = floor(mod(x, 2.));
    float fm = f * m;
    return f + m - fm * 2.;
}

vec2 mirror(in vec2 v) {
    vec2 f = fract(v);
    vec2 m = floor(mod(v, 2.));
    vec2 fm = f * m;
    return f + m - fm * 2.;
}
#endif

Dependencies:

• lygia/v1.1.6/math/mod.glsl

Use:

mirror(<float2|float> x)

Check it on Github

#ifndef FNC_MIRROR
#define FNC_MIRROR
float mirror(in float x) {
    float f = frac(x);
    float m = floor(mod(x, 2.));
    float fm = f * m;
    return f + m - fm * 2.;
}

float2 mirror(in float2 xy) {
    float2 f = frac(xy);
    float2 m = floor(mod(xy, 2.));
    float2 fm = f * m;
    return f + m - fm * 2.;
}
#endif

Check it on Github

fn mirror(x: f32) -> f32 {
    let f = fract(x);
    let m = floor(x % 2.0);
    let fm = f * m;
    return f + m - fm * 2.0;
}

fn mirror2(xy: vec2<f32>) -> vec2<f32> {
    let f = fract(xy);
    let m = floor(xy % 2.0);
    let fm = f * m;
    return f + m - fm * 2.0;
}

Dependencies:

• lygia/v1.1.6/math/mod.glsl
• lygia/v1.1.6/math/frac.glsl
• lygia/v1.1.6/math/operations.glsl

Use:

mirror(<float2|float> x)

Check it on Github

#ifndef FNC_MIRROR
#define FNC_MIRROR
inline __device__ __host__ float mirror(float x) {
    float f = frac(x);
    float m = floor(mod(x, 2.0f));
    float fm = f * m;
    return f + m - fm * 2.;
}

inline __device__ __host__ float2 mirror(float2 xy) {
    float2 f = frac(xy);
    float2 m = floor(mod(xy, 2.0f));
    float2 fm = f * m;
    return f + m - fm * 2.0f;
}
#endif