42 lines
1.4 KiB
Plaintext
42 lines
1.4 KiB
Plaintext
{
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"name": "fill_iterate",
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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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"s": 8
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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": "rgba"
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}
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],
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"instance": "vec4 $(name)_fill(vec2 uv) {\n\tfloat size = $s;\n\tvec4 color = $in(fract(uv));\n\tif (color.z+color.w < 1.0/size) {\n\t\treturn vec4(0.0);\n\t}\n\tvec2 offsets[8] = { vec2(1.0, 0.0), vec2(-1.0, 0.0), vec2(0.0, 1.0), vec2(0.0, -1.0), vec2(1.0, 1.0), vec2(-1.0, 1.0), vec2(-1.0, 1.0), vec2(-1.0, -1.0) };\n\tfor (int o = 0; o < 8; ++o) {\n\t\tvec2 uv2 = uv;\n\t\tvec2 offset = offsets[o]/size;\n\t\tfor (int i = 1; i < int(size); i += 1) {\n\t\t\tuv2 += offset;\n\t\t\tvec4 color2 = $in(fract(uv2));\n\t\t\tif (color2.z+color2.w == 0.0) {\n\t\t\t\tbreak;\n\t\t\t}\n\t\t\tvec2 p1 = color.xy+floor(uv-color.xy);\n\t\t\tvec2 p2 = color2.xy+floor(uv2-color2.xy);\n\t\t\tvec2 p = min(p1, p2);\n\t\t\tvec2 s = max(p1+color.zw, p2+color2.zw)-p;\n\t\t\tcolor = mix(vec4(0.0, 0.0, 1.0, 1.0), vec4(fract(p), s), step(s.xyxy, vec4(1.0)));\n\t\t}\n\t}\n\treturn floor(color*size)/size;\n}\n",
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"name": "Fill iterate",
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"outputs": [
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{
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"rgba": "$(name)_fill($uv)",
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"type": "rgba"
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}
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],
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"parameters": [
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{
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"default": 9,
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"first": 6,
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"label": "",
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"last": 12,
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"name": "s",
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"type": "size"
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}
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]
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},
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"type": "shader"
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} |