shader_type spatial;
render_mode unshaded, diffuse_lambert;

uniform float amount = 3.0f;
uniform float intensity = 1.0f;
uniform vec3 fresnel_color : source_color = vec3(1,1,1);
uniform sampler2D noise_texture;
varying float flux;

float fresnel(vec3 normal, vec3 view)
{
	return pow((1.0 - clamp(dot(normalize(normal), normalize(view)), 0.0, 1.0 )), amount);
}

vec3 fresnel_glow(vec3 normal, vec3 view)
{
	return pow((1.0 - dot(normalize(normal), normalize(view))), amount) * fresnel_color * intensity;
}

void vertex()
{
	flux = .1 + .9 * texture(noise_texture, vec2(UV.x + TIME * .1, UV.y + TIME*.2)).r;
}
void fragment()
{
	
	vec3 base_color = vec3(0.0);
	vec3 basic_fresnel = fresnel_glow(NORMAL, VIEW);
	float f = texture(noise_texture, vec2(NORMAL.x + TIME * .1, NORMAL.y + TIME*.2)).r;
	ALBEDO = base_color + basic_fresnel * f;
	float fres_alpha = fresnel(NORMAL, VIEW);
	ALPHA = fres_alpha;
}

//void light() {
//	// Called for every pixel for every light affecting the material.
//	// Uncomment to replace the default light processing function with this one.
//}