160 lines
3.6 KiB
Plaintext
160 lines
3.6 KiB
Plaintext
{
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"name": "pattern",
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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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"mix": 0,
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"x_scale": 4,
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"x_wave": 0,
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"y_scale": 4,
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"y_wave": 0
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},
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"shader_model": {
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"code": "",
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"global": "float wave_constant(float x) {\n\treturn 1.0;\n}\n\nfloat wave_sine(float x) {\n\treturn 0.5-0.5*cos(3.14159265359*2.0*x);\n}\n\nfloat wave_triangle(float x) {\n\tx = fract(x);\n\treturn min(2.0*x, 2.0-2.0*x);\n}\n\nfloat wave_sawtooth(float x) {\n\treturn fract(x);\n}\n\nfloat wave_square(float x) {\n\treturn (fract(x) < 0.5) ? 0.0 : 1.0;\n}\n\nfloat wave_bounce(float x) {\n\tx = 2.0*(fract(x)-0.5);\n\treturn sqrt(1.0-x*x);\n}\n\nfloat mix_mul(float x, float y) {\n\treturn x*y;\n}\n\nfloat mix_add(float x, float y) {\n\treturn min(x+y, 1.0);\n}\n\nfloat mix_max(float x, float y) {\n\treturn max(x, y);\n}\n\nfloat mix_min(float x, float y) {\n\treturn min(x, y);\n}\n\nfloat mix_xor(float x, float y) {\n\treturn min(x+y, 2.0-x-y);\n}\n\nfloat mix_pow(float x, float y) {\n\treturn pow(x, y);\n}",
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"inputs": [
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],
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"instance": "float $(name)_fct(vec2 uv) {\n\treturn mix_$(mix)(wave_$(x_wave)($(x_scale)*uv.x), wave_$(y_wave)($(y_scale)*uv.y));\n}",
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"name": "Pattern",
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"outputs": [
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{
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"f": "$(name)_fct($(uv))",
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"longdesc": "A greyscale image that combines the horizontal and vertical patterns",
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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": "Combiner",
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"longdesc": "The operation used to combine the horizontal and the vertical patterns",
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"name": "mix",
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"shortdesc": "Combine",
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"type": "enum",
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"values": [
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{
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"name": "Multiply",
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"value": "mul"
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},
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{
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"name": "Add",
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"value": "add"
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},
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{
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"name": "Max",
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"value": "max"
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},
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{
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"name": "Min",
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"value": "min"
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},
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{
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"name": "Xor",
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"value": "xor"
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},
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{
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"name": "Pow",
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"value": "pow"
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}
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]
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},
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{
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"default": 5,
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"label": "X",
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"longdesc": "Pattern generated along the X axis",
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"name": "x_wave",
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"shortdesc": "X Pattern",
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"type": "enum",
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"values": [
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{
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"name": "Sine",
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"value": "sine"
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},
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{
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"name": "Triangle",
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"value": "triangle"
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},
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{
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"name": "Square",
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"value": "square"
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},
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{
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"name": "Sawtooth",
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"value": "sawtooth"
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},
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{
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"name": "Constant",
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"value": "constant"
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},
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{
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"name": "Bounce",
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"value": "bounce"
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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": "2:",
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"longdesc": "Repetitions of the pattern along X axis",
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"max": 32,
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"min": 0,
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"name": "x_scale",
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"shortdesc": "X Repeat",
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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": 5,
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"label": "Y",
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"longdesc": "Pattern generated along the Y axis",
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"name": "y_wave",
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"shortdesc": "Y Pattern",
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"type": "enum",
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"values": [
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{
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"name": "Sine",
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"value": "sine"
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},
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{
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"name": "Triangle",
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"value": "triangle"
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},
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{
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"name": "Square",
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"value": "square"
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},
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{
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"name": "Sawtooth",
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"value": "sawtooth"
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},
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{
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"name": "Constant",
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"value": "constant"
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},
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{
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"name": "Bounce",
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"value": "bounce"
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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": "3:",
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"longdesc": "Repetitions of the pattern along Y axis",
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"max": 32,
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"min": 0,
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"name": "y_scale",
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"shortdesc": "Y Repeat",
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"step": 1,
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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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} |