material-maker/addons/material_maker/nodes/noise.mmn

{"global":"float dots(vec2 uv, float size, float density, int seed) {\n\tvec2 seed2 = rand2(vec2(float(seed), 1.0-float(seed)));\n\tuv /= size;\n\tvec2 point_pos = floor(uv)+vec2(0.5);\n\tfloat color = step(rand(seed2+point_pos), density);\n    return color;\n}","instance":"\n\t\tfloat $(name)_f(vec2 uv) {\n\t\t\treturn dots(uv, 1.0/$(size), $(density), $(seed));\n\t\t}","name":"Noise","outputs":[{"f":"$(name)_f($(uv))"}],"parameters":[{"default":8,"first":2,"label":"Grid Size:","last":8,"name":"size","type":"size"},{"default":0.5,"label":"Density:","max":1,"min":0,"name":"density","step":0,"type":"float"}]}