{ "name": "sdbox", "node_position": { "x": 0, "y": 0 }, "parameters": { "cx": 0, "cy": 0, "h": 0.2, "w": 0.3 }, "shader_model": { "code": "vec2 $(name_uv)_d = abs($uv-vec2($cx+0.5, $cy+0.5))-vec2($w, $h);\n", "global": "", "inputs": [ ], "instance": "", "longdesc": "A rectangle described as a signed distance function", "name": "sdBox", "outputs": [ { "longdesc": "The generated signed distance function", "sdf2d": "length(max($(name_uv)_d,vec2(0)))+min(max($(name_uv)_d.x,$(name_uv)_d.y),0.0)", "shortdesc": "Output", "type": "sdf2d" } ], "parameters": [ { "control": "Rect1.x", "default": 0.5, "label": "Width", "longdesc": "The width of the box", "max": 1, "min": 0, "name": "w", "shortdesc": "Width", "step": 0.01, "type": "float" }, { "control": "Rect1.y", "default": 1, "label": "Height", "longdesc": "The height of the box", "max": 1, "min": 0, "name": "h", "shortdesc": "Height", "step": 0.01, "type": "float" }, { "control": "P1.x", "default": 0, "label": "Center X", "longdesc": "The position of the center of the box on the X axis", "max": 1, "min": -1, "name": "cx", "shortdesc": "Center.x", "step": 0.01, "type": "float" }, { "control": "P1.y", "default": 0, "label": "Center Y", "longdesc": "The position of the center of the box on the Y axis", "max": 1, "min": -1, "name": "cy", "shortdesc": "Center.y", "step": 0.01, "type": "float" } ], "shortdesc": "sdBox" }, "type": "shader" }