mirror of
https://github.com/Relintai/material-maker.git
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94 lines
2.1 KiB
Plaintext
94 lines
2.1 KiB
Plaintext
{
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"name": "splatter",
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"node_position": {
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"x": 0,
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"y": 0
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},
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"parameters": {
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"count": 30,
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"rotate": 0,
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"scale": 0,
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"select_inputs": 0
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},
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"shader_model": {
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"code": "",
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"global": "",
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"inputs": [
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{
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"default": "0.0",
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"function": true,
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"label": "",
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"name": "in",
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"type": "f"
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},
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{
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"default": "1.0",
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"function": true,
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"label": "",
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"name": "mask",
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"type": "f"
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}
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],
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"instance": "float splatter_$(name)(vec2 uv, int count, vec2 seed) {\n\tfloat c = 0.0;\n\tfor (int i = 0; i < count; ++i) {\n\t\tseed = rand2(seed);\n\t\tfloat mask = $mask(seed+vec2(0.5));\n\t\tif (mask > 0.01) {\n\t\t\tvec2 pv = fract(uv - seed)-vec2(0.5);\n\t\t\tseed = rand2(seed);\n\t\t\tfloat angle = (seed.x * 2.0 - 1.0) * $rotate;\n\t\t\tfloat ca = cos(angle);\n\t\t\tfloat sa = sin(angle);\n\t\t\tpv = vec2(ca*pv.x+sa*pv.y, -sa*pv.x+ca*pv.y);\n\t\t\tpv *= (seed.y-0.5)*2.0*$scale+1.0;\n\t\t\tpv += vec2(0.5);\n\t\t\t$select_inputs\n\t\t\tc = max(c, $in(pv)*mask);\n\t\t}\n\t}\n\treturn c;\n}",
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"name": "Splatter",
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"outputs": [
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{
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"f": "splatter_$(name)($uv, int($count), vec2($seed))",
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"type": "f"
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}
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],
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"parameters": [
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{
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"control": "None",
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"default": 10,
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"label": "Count",
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"max": 100,
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"min": 1,
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"name": "count",
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"step": 1,
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"type": "float"
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},
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{
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"default": 0,
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"label": "Inputs",
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"name": "select_inputs",
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"type": "enum",
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"values": [
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{
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"name": "1",
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"value": " "
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},
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{
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"name": "4",
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"value": "pv = clamp(0.5*(pv+floor(rand2(seed)*2.0)), vec2(0.0), vec2(1.0));"
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},
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{
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"name": "16",
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"value": "pv = clamp(0.25*(pv+floor(rand2(seed)*4.0)), vec2(0.0), vec2(1.0));"
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}
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]
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},
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{
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"control": "None",
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"default": 0,
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"label": "Rotate",
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"max": 180,
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"min": 0,
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"name": "rotate",
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"step": 0.1,
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"type": "float"
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},
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{
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"control": "None",
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"default": 0,
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"label": "Scale",
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"max": 1,
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"min": 0,
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"name": "scale",
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"step": 0.01,
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"type": "float"
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}
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]
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},
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"type": "shader"
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} |