shader_type canvas_item;
uniform vec4 ground_tint : source_color = vec4(0.4,0.35,0.25,1.0);
varying vec4 vertex_tint;

void vertex() {
	vertex_tint = COLOR;
}

void fragment() {
	vec4 art = texture(TEXTURE,UV);
	float light = dot(art.rgb,vec3(0.299,0.587,0.114));
	vec3 color = mix(vec3(light),art.rgb,0.78)*0.9;
	float footing = smoothstep(0.55,0.9,UV.y);
	color = mix(color,ground_tint.rgb*(0.45+light),0.12+footing*0.16);
	COLOR = vec4(color,art.a)*vertex_tint;
}