Fix transparent viewport for Godot Engine

fix_transparent_viewport.shader

/**
* Fix Godot transparent  viewport.
* License: CC0
* https://creativecommons.org/publicdomain/zero/1.0/
*/
shader_type canvas_item;

void fragment(){
	vec4 color = texture(TEXTURE,UV);
	if (color.a!=0.0){
		vec3 color_fix = color.rgb/color.a; //Must be applied each time you get texture(), one row fix: color.rgb/=color.a
	}
	COLOR = vec4(color_fix,color.a);
}