shader_type spatial;

#include "res://vfx/util.gdshaderinc"

UNIVERSAL_SOLID_PARAMS
uniform sampler2D image: TEXTURE_HINTS;
uniform float hue_precision = 0.075;
uniform float saturation_threshold = 0.25;
uniform float glass_hue = -1.0;
uniform float chrome_hue = -1.0;
uniform float glow_hue = -1.0;
uniform float neon_hue = -1.0;
uniform float wax_hue = -1.0;
uniform float gloss_hue = -1.0;

void fragment() {
	vec3 rgb = texture(image, UV).rgb;
	ALBEDO = rgb;
	vec3 hsv = rgb2hsv(rgb);
	if (hsv.y >= saturation_threshold) {
		if (abs(hsv.x - glass_hue) <= hue_precision) {
			CLEARCOAT = 1.0;
			CLEARCOAT_ROUGHNESS = 0.05;
			ROUGHNESS = 0.05;
			SPECULAR = 1.0;
			METALLIC = 1.0;
		}
		if (abs(hsv.x - chrome_hue) <= hue_precision) {
			CLEARCOAT = 1.0;
			CLEARCOAT_ROUGHNESS = 0.05;
			ROUGHNESS = 0.05;
			SPECULAR = 1.0;
			METALLIC = 1.0;
		}
		if (abs(hsv.x - glow_hue) <= hue_precision) {
			EMISSION = ALBEDO/4.0;
		}
		if (abs(hsv.x - neon_hue) <= hue_precision) {
			EMISSION = ALBEDO;
		}
		if (abs(hsv.x - wax_hue) <= hue_precision) {
			CLEARCOAT = 0.05;
			CLEARCOAT_ROUGHNESS = 0.95;
		}
		if (abs(hsv.x - gloss_hue) <= hue_precision) {
			CLEARCOAT = 0.25;
			CLEARCOAT_ROUGHNESS = 0.25;
		}
	}
	UNIVERSAL_SOLID_PROCESSING
}