LYGIA Shader Library

Dependencies:

• lygia/geometry/triangle/triangle.glsl
• lygia/geometry/triangle/normal.glsl
• lygia/geometry/triangle/closestPoint.glsl

Use:

<vec3> closestDistance(<Triangle> tri, <vec3> _pos)

Check it on Github

#ifndef FNC_TRIANGLE_SIGNED_DISTANCE
#define FNC_TRIANGLE_SIGNED_DISTANCE

float signedDistance(Triangle _tri, vec3 _triNormal, vec3 _p) {
    vec3 nearest = closestPoint(_tri, _triNormal, _p);
    vec3 delta = _p - nearest;
    float distance = length(delta);
    distance *= sign( dot(delta/distance, _triNormal) );
    return distance;
}

float signedDistance(Triangle _tri, vec3 _p) { return signedDistance(_tri, normal(_tri), _p); }

#endif

Dependencies:

• lygia/geometry/triangle/triangle.glsl
• lygia/geometry/triangle/normal.glsl
• lygia/geometry/triangle/closestPoint.glsl

Use:

<float3> closestDistance(<Triangle> tri, <float3> _pos)

Check it on Github

#ifndef FNC_TRIANGLE_SIGNED_DISTANCE
#define FNC_TRIANGLE_SIGNED_DISTANCE

float signedDistance(Triangle _tri, float3 _triNormal, float3 _p) {
    float3 nearest = closestPoint(_tri, _triNormal, _p);
    float3 delta = _p - nearest;
    float distance = length(delta);
    distance *= sign( dot(delta/distance, _triNormal) );
    return distance;
}

float signedDistance(Triangle _tri, float3 _p) { return signedDistance(_tri, normal(_tri), _p); }

#endif

Dependencies:

• lygia/geometry/triangle/triangle.glsl
• lygia/geometry/triangle/normal.glsl
• lygia/geometry/triangle/closestPoint.glsl
• lygia/math/length.glsl
• lygia/math/sign.glsl
• lygia/math/operations.glsl

Use:

<float3> closestDistance(<Triangle> tri, <float3> _pos)

Check it on Github

#ifndef FNC_TRIANGLE_SIGNED_DISTANCE
#define FNC_TRIANGLE_SIGNED_DISTANCE

inline __host__ __device__ float signedDistance(const Triangle& _tri, const float3& _triNormal, const float3& _p) {
    float3 nearest = closestPoint(_tri, _triNormal, _p);
    float3 delta = _p - nearest;
    float distance = length(delta);
    distance *= sign( dot(delta/distance, _triNormal) );
    return distance;
}

inline __host__ __device__ float signedDistance(const Triangle& _tri, const float3& _p) { return signedDistance(_tri, normal(_tri), _p); }

#endif