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// https://www.youtube.com/watch?v=il_Qg9AqQkE | ||
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INPUT Point2D 'Center'; | ||
INPUT float 'Size'; | ||
INPUT Angle 'Angle'; | ||
INPUT int 'Iterations'; | ||
INPUT float 'Mask'; | ||
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vec2 u(float angle) | ||
{ | ||
return vec2(sin(angle), cos(angle)); | ||
} | ||
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UV main(UV Image) | ||
{ | ||
vec2 out_uv = Image - 'Center'; | ||
out_uv /= 'Size'; | ||
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out_uv.x = abs(out_uv.x); | ||
float fractal_angle = (5. / 6.) * PI; | ||
out_uv.y += tan(fractal_angle) * 0.5; | ||
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vec2 u_line = u(fractal_angle); | ||
float d = dot(out_uv - vec2(0.5, 0), u_line); | ||
out_uv -= u_line * max(0., d) * 2.; | ||
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u_line = u('Angle'); | ||
out_uv.x += 0.5; | ||
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float scale = 3.; | ||
for (int i = 0; i < 'Iterations'; i++) | ||
{ | ||
out_uv *= scale; | ||
out_uv.x -= scale / 2.; | ||
out_uv.x = abs(out_uv.x); | ||
out_uv.x -= 0.5; | ||
out_uv -= u_line * min(0., dot(out_uv, u_line)) * 2.; | ||
} | ||
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d = length(out_uv - vec2(clamp(out_uv.x, -1., 1.), 0.)); | ||
out_uv /= (pow(scale, float('Iterations'))); | ||
out_uv *= 'Size'; | ||
out_uv += 'Center'; | ||
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return mix(Image, out_uv, 'Mask'); | ||
} |
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{ | ||
"Presets": { | ||
"Underlying container": [ | ||
{ | ||
"first": "42282f76-8c81-410d-a961-63a914727cdd", | ||
"second": { | ||
"Name": "Default", | ||
"Values": [ | ||
{ | ||
"index": 3, | ||
"data": { | ||
"Name": "Center", | ||
"Value": { | ||
"Point2D": { | ||
"x": 0.0, | ||
"y": 0.0 | ||
} | ||
}, | ||
"Metadata": { | ||
"Drag speed": 0.00009999999747378752 | ||
} | ||
} | ||
}, | ||
{ | ||
"index": 2, | ||
"data": { | ||
"Name": "Size", | ||
"Value": 1.0, | ||
"Metadata": { | ||
"Bounds": { | ||
"Has min bound": true, | ||
"Min": 0.000009999999747378752, | ||
"Has max bound": false, | ||
"Max": 1.0, | ||
"Drag speed": 0.009999999776482582, | ||
"Use slider": false, | ||
"Is logarithmic": false | ||
} | ||
} | ||
} | ||
}, | ||
{ | ||
"index": 11, | ||
"data": { | ||
"Name": "Angle", | ||
"Value": { | ||
"Radians": { | ||
"Radians": 0.0 | ||
} | ||
}, | ||
"Metadata": { | ||
"Number of snaps": 24, | ||
"Snaps offset (in radians)": 0.0, | ||
"Always snap": false | ||
} | ||
} | ||
}, | ||
{ | ||
"index": 1, | ||
"data": { | ||
"Name": "Iterations", | ||
"Value": 4, | ||
"Metadata": { | ||
"Bounds": { | ||
"Has min bound": true, | ||
"Min": 0, | ||
"Has max bound": true, | ||
"Max": 10, | ||
"Drag speed": 0.0020000000949949028, | ||
"Use slider": false, | ||
"Is logarithmic": false | ||
} | ||
} | ||
} | ||
}, | ||
{ | ||
"index": 2, | ||
"data": { | ||
"Name": "Mask", | ||
"Value": 1.0, | ||
"Metadata": { | ||
"Bounds": { | ||
"Has min bound": true, | ||
"Min": 0.0, | ||
"Has max bound": true, | ||
"Max": 1.0, | ||
"Drag speed": 0.009999999776482582, | ||
"Use slider": true, | ||
"Is logarithmic": false | ||
} | ||
} | ||
} | ||
} | ||
] | ||
} | ||
} | ||
] | ||
} | ||
} |