MatCap for Godot, looks like blender matcap

Matcap.glsl

//MatCap to Godot By ArthurAlk, Copy and Paste it in Fragment
//This shader looks like blender matcap

//Matcap texture
uniform texture MatCap;

//here the magic happens
vec2 vN = NORMAL.xy/2+vec2(0.5,0.5);
vN.y = vN.y*(-1)+1;

//This applies your MatCap to Model using the created UV
DIFFUSE = tex(MatCap,vN).rgb;

Matcap_FixBack.glsl

//MatCap to Godot By ArthurAlk, Copy and Paste it in Vertex
uniform bool Fix_Back = true;
if (NORMAL.z<0 && Fix_Back)
	{
	NORMAL.z = 0;
	}