77 lines
2.0 KiB
Plaintext
77 lines
2.0 KiB
Plaintext
{
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"name": "sdf3d_repeat",
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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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"r": 0.3,
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"rx": 3,
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"ry": 3
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},
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"shader_model": {
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"code": "",
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"global": "vec3 repeat(vec3 p, vec3 r, float seed, float randomness) {\n\tvec3 a = (rand3(floor(mod((p.xy+0.5*r.xy)/r.xy, 1.0/r.xy)+vec2(seed)))-0.5)*6.28*randomness;\n\tp = mod(p+0.5*r,r)-0.5*r;\n\tvec3 rv;\n\tfloat c;\n\tfloat s;\n\tc = cos(a.x);\n\ts = sin(a.x);\n\trv.x = p.x;\n\trv.y = p.y*c+p.z*s;\n\trv.z = -p.y*s+p.z*c;\n\tc = cos(a.y);\n\ts = sin(a.y);\n\tp.x = rv.x*c+rv.z*s;\n\tp.y = rv.y;\n\tp.z = -rv.x*s+rv.z*c;\n\tc = cos(a.z);\n\ts = sin(a.z);\n\trv.x = p.x*c+p.y*s;\n\trv.y = -p.x*s+p.y*c;\n\trv.z = p.z;\n\treturn rv;\n}\n",
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"inputs": [
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{
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"default": "vec2(100, 0.0)",
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"label": "",
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"longdesc": "The input shape, defined as a signed distance function",
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"name": "in",
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"shortdesc": "Input",
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"type": "sdf3dc"
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}
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],
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"instance": "",
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"longdesc": "Repeats its input shape on a grid.\nThis node does not support overlapping between instances.",
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"name": "Repeat",
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"outputs": [
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{
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"longdesc": "The shape generated by the repeat operation",
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"sdf3dc": "$in(repeat($uv, vec3(1.0/$rx, 1.0/$ry, 0.0), float($seed), $r))",
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"shortdesc": "Output",
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"type": "sdf3dc"
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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": 4,
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"label": "X",
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"longdesc": "The number of columns in the grid",
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"max": 32,
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"min": 1,
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"name": "rx",
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"shortdesc": "Columns",
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"step": 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": 4,
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"label": "Y",
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"longdesc": "The number of lines in the grid",
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"max": 32,
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"min": 1,
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"name": "ry",
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"shortdesc": "Lines",
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"step": 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": 0.5,
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"label": "R",
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"longdesc": "The amount of random rotation on each instance of the input shape",
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"max": 1,
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"min": 0,
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"name": "r",
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"shortdesc": "Rotation",
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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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"shortdesc": "Repeat"
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},
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"type": "shader"
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} |