material-maker/addons/material_maker/nodes/custom_uv.mmg

{
	"name": "custom_uv",
	"node_position": {
		"x": 0,
		"y": 0
	},
	"parameters": {
		"rotate": 0,
		"scale": 0
	},
	"shader_model": {
		"code": "vec3 $(name_uv)_map = $map($uv);",
		"global": "vec2 custom_uv_transform(vec2 uv, float rotate, float scale, vec2 seed) {\n\tseed = rand2(seed);\n\tuv -= vec2(0.5);\n\tfloat angle = (seed.x * 2.0 - 1.0) * rotate;\n\tfloat ca = cos(angle);\n\tfloat sa = sin(angle);\n\tuv = vec2(ca*uv.x+sa*uv.y, -sa*uv.x+ca*uv.y);\n\tuv *= (seed.y-0.5)*2.0*scale+1.0;\n\tuv += vec2(0.5);\n\treturn uv;\n}\n",
		"inputs": [
			{
				"default": "vec4(1.0)",
				"label": "Input",
				"name": "in",
				"type": "rgba"
			},
			{
				"default": "vec3(1.0)",
				"label": "UV",
				"name": "map",
				"type": "rgb"
			}
		],
		"instance": "",
		"name": "Custom UV",
		"outputs": [
			{
				"rgba": "$in(custom_uv_transform($(name_uv)_map.xy, $rotate*0.01745329251, $scale, vec2($(name_uv)_map.z, float($seed))))",
				"type": "rgba"
			}
		],
		"parameters": [
			{
				"control": "None",
				"default": 0,
				"label": "Rotate",
				"max": 180,
				"min": 0,
				"name": "rotate",
				"step": 0.1,
				"type": "float"
			},
			{
				"control": "None",
				"default": 0.5,
				"label": "Scale",
				"max": 1,
				"min": 0,
				"name": "scale",
				"step": 0.1,
				"type": "float"
			}
		]
	},
	"type": "shader"
}