63 lines
1.5 KiB
Plaintext
63 lines
1.5 KiB
Plaintext
{
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"name": "truchet",
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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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"shape": 0,
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"size": 4
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},
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"shader_model": {
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"code": "",
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"global": "float truchet1(vec2 uv, vec2 seed) {\n vec2 i = floor(uv);\n vec2 f = fract(uv)-vec2(0.5);\n return 1.0-abs(abs((2.0*step(rand(i+seed), 0.5)-1.0)*f.x+f.y)-0.5);\n}\n\nfloat truchet2(vec2 uv, vec2 seed) {\n vec2 i = floor(uv);\n vec2 f = fract(uv);\n float random = step(rand(i+seed), 0.5);\n f.x *= 2.0*random-1.0;\n f.x += 1.0-random;\n return 1.0-min(abs(length(f)-0.5), abs(length(1.0-f)-0.5));\n}\n",
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"inputs": [
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],
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"instance": "",
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"longdesc": "Generates a truchet pattern",
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"name": "Truchet",
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"outputs": [
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{
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"f": "truchet$shape($uv*$size, vec2(float($seed)))",
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"longdesc": "Shows a greyscale image of the truchet pattern.",
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"shortdesc": "Output",
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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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"default": 0,
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"label": "Shape",
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"longdesc": "The base shape of each tile of the truchet pattern",
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"name": "shape",
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"shortdesc": "Shape",
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"type": "enum",
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"values": [
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{
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"name": "Line",
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"value": "1"
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},
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{
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"name": "Circle",
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"value": "2"
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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": 4,
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"label": "Size",
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"longdesc": "The number of rows and columns of the truchet pattern",
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"max": 64,
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"min": 2,
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"name": "size",
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"shortdesc": "Size",
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"step": 1,
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"type": "float"
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}
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],
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"shortdesc": "Truchet pattern"
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},
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"type": "shader"
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} |