rj-action-library/Runtime/Shading/Library/Transform.gdshaderinc

vec3 localToWorld( vec3 _VERTEX, mat4 _MODEL_MATRIX )
{
  return ( _MODEL_MATRIX * vec4( _VERTEX, 1.0 ) ).xyz;  
}

vec3 worldToLocal( vec3 _VERTEX, mat4 _MODEL_MATRIX )
{
  return ( inverse( _MODEL_MATRIX ) * vec4( _VERTEX, 1.0 ) ).xyz;  
}