Explaination of vertex inflation: https://github.com/leapmotion/AppExperiments/blob/master/Assets/AppExperiments/AR%20Experiments/Occlusion%20Hands/InflationHand.shader

vertex_inflation_explaination.shader

v2f vert_inflation(appdata v) {
    v2f o;
    v.vertex = LeapGetLateVertexPos(v.vertex, _isLeftHand); // late-latch support
    o.vertex = UnityObjectToClipPos(v.vertex + float4(_InflationAmount * v.normal, 0));
    return o;
}

fixed4 frag(v2f i) : SV_Target{
  return _Color;
}