{ "name": "quantize", "node_position": { "x": 0, "y": 0 }, "parameters": { "steps": 4 }, "shader_model": { "code": "", "global": "", "inputs": [ { "default": "vec4(2.0*vec3(length($uv-vec2(0.5))), 1.0)", "label": "", "longdesc": "The input image", "name": "in", "shortdesc": "Input", "type": "rgba" } ], "instance": "", "longdesc": "Quantizes the red, green and blue channels of its input", "name": "Quantize", "outputs": [ { "longdesc": "The quantized image", "rgba": "vec4(floor($in($uv).rgb*$steps)/$steps, $in($uv).a)", "shortdesc": "Output", "type": "rgba" } ], "parameters": [ { "control": "None", "default": 4, "label": "", "longdesc": "The number of quantization steps", "max": 32, "min": 2, "name": "steps", "shortdesc": "Steps", "step": 1, "type": "float" } ], "shortdesc": "Quantize" }, "type": "shader" }