{
	"name": "adjust_hsv",
	"node_position": {
		"x": 0,
		"y": 0
	},
	"parameters": {
		"hue": 0,
		"saturation": 1,
		"value": 1
	},
	"shader_model": {
		"code": "",
		"global": "vec3 rgb_to_hsv(vec3 c) {\n\tvec4 K = vec4(0.0, -1.0 / 3.0, 2.0 / 3.0, -1.0);\n\tvec4 p = c.g < c.b ? vec4(c.bg, K.wz) : vec4(c.gb, K.xy);\n\tvec4 q = c.r < p.x ? vec4(p.xyw, c.r) : vec4(c.r, p.yzx);\n\n\tfloat d = q.x - min(q.w, q.y);\n\tfloat e = 1.0e-10;\n\treturn vec3(abs(q.z + (q.w - q.y) / (6.0 * d + e)), d / (q.x + e), q.x);\n}\n\nvec3 hsv_to_rgb(vec3 c) {\n\tvec4 K = vec4(1.0, 2.0 / 3.0, 1.0 / 3.0, 3.0);\n\tvec3 p = abs(fract(c.xxx + K.xyz) * 6.0 - K.www);\n\treturn c.z * mix(K.xxx, clamp(p - K.xxx, 0.0, 1.0), c.y);\n}\n",
		"inputs": [
			{
				"default": "vec4($uv.x, $uv.y, 0.0, 1.0)",
				"label": "",
				"longdesc": "The input image",
				"name": "in",
				"shortdesc": "Input",
				"type": "rgba"
			}
		],
		"instance": "vec4 $(name)_f(vec4 c) {\n\tvec3 hsv = rgb_to_hsv(c.rgb);\n\treturn vec4(hsv_to_rgb(vec3(fract(hsv.x+$(hue)), clamp(hsv.y*$(saturation), 0.0, 1.0), clamp(hsv.z*$(value), 0.0, 1.0))), c.a);\n}",
		"longdesc": "A node that adjusts the Hue, Saturation and Value of its input",
		"name": "AdjustHSV",
		"outputs": [
			{
				"longdesc": "Shows the image with adjusted Hue, Saturation and Value",
				"rgba": "$(name)_f($in($(uv)))",
				"shortdesc": "Output",
				"type": "rgba"
			}
		],
		"parameters": [
			{
				"control": "None",
				"default": 0,
				"label": "Hue",
				"longdesc": "The Hue adjustment",
				"max": 0.5,
				"min": -0.5,
				"name": "hue",
				"shortdesc": "Hue",
				"step": 0,
				"type": "float"
			},
			{
				"control": "None",
				"default": 1,
				"label": "Saturation",
				"longdesc": "The Saturation adjustment",
				"max": 2,
				"min": 0,
				"name": "saturation",
				"shortdesc": "Saturation",
				"step": 0,
				"type": "float"
			},
			{
				"control": "None",
				"default": 1,
				"label": "Value",
				"longdesc": "The Value adjustment",
				"max": 2,
				"min": 0,
				"name": "value",
				"shortdesc": "Value",
				"step": 0,
				"type": "float"
			}
		],
		"shortdesc": "Adjust HSV"
	},
	"type": "shader"
}