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| { | |
| "title": "Neural Canvas", | |
| "created": "2026-09-06", | |
| "scope": "Official MaleCNS brain and nerve cord connectivity with an adapted spiking model. Computed neural activity drives crafted, illustrative movements; this is not a validated whole-fly emulation.", | |
| "data": { | |
| "dataset": "MaleCNS v1.0", | |
| "neurons": 166700, | |
| "directedEdges": 25582938, | |
| "synapses": 124177617, | |
| "paintableSomaPositions": 139662, | |
| "selection": "All annotation rows with non-null superclass, induced graph without an additional edge threshold", | |
| "source": "https://male-cns.janelia.org/download/", | |
| "license": "CC BY 4.0", | |
| "audit": "./data/manifest.json", | |
| "identifiers": "bodyId is a unique dataset identifier, not a sequential neuron number; 166700 unique records, IDs10001\u20131471062202." | |
| }, | |
| "neuralModel": { | |
| "reference": "https://www.nature.com/articles/s41586-024-07763-9", | |
| "dtMs": 0.1, | |
| "membraneTauMs": 20, | |
| "synapticTauMs": 5, | |
| "thresholdMv": -45, | |
| "restMv": -52, | |
| "delayMs": 1.8, | |
| "refractoryMs": 2.2, | |
| "synapseWeightMv": 0.275, | |
| "poissonVoltageMv": 68.75, | |
| "seed": 1, | |
| "signs": { | |
| "acetylcholine": 1, | |
| "gaba": -1, | |
| "glutamate": -1, | |
| "dopamine": 1, | |
| "octopamine": 1, | |
| "serotonin": 1, | |
| "histamine": 0, | |
| "unknown": 0 | |
| }, | |
| "omittedFastOutputNeurons": 11068, | |
| "pulse": { | |
| "initialHz": 180, | |
| "holdMs": 80, | |
| "decayTauMs": 180, | |
| "maximumMs": 1000, | |
| "rateFloorHz": 1, | |
| "updateMs": 10, | |
| "turnPreset": { | |
| "holdMs": 650, | |
| "decayTauMs": 220, | |
| "maximumMs": 2500, | |
| "replaceExternalInputs": true, | |
| "preserveRecurrentState": true, | |
| "directDescendingInput": true | |
| }, | |
| "actionTargets": { | |
| "walk": "Bilateral LC9", | |
| "left": "Left LC9 and DNa02", | |
| "right": "Right LC9 and DNa02", | |
| "fly": "Bilateral LC4", | |
| "turnRationale": "Direct ipsilateral DNa02 input keeps turn readout active when LC9 recruitment is weak; spikes still pass through the neural model and rate decoder." | |
| } | |
| } | |
| }, | |
| "controller": { | |
| "kind": "Crafted animation driven by computed firing rates; no direct brush or preset input", | |
| "readouts": [ | |
| "DNp09/DNg100/DNg97 left and right", | |
| "DNa02/DNa11/DNg13 left and right", | |
| "MDN", | |
| "DNp01" | |
| ], | |
| "filterMs": 80, | |
| "units": "millimetres, seconds, radians", | |
| "walkingGainMmS": 8, | |
| "yawGainRadS": 3.8, | |
| "jumpLaunchMmS": 80, | |
| "gravityMmS2": 9810, | |
| "movement": "Smoothed rate-to-speed and rate-to-yaw mapping, authored tripod foot trajectories, joint-limited IK, and a bounded flight/landing controller. No contact, muscle or aerodynamic simulation.", | |
| "sensoryFeedback": "None; body motion does not feed back into the neural network.", | |
| "escapeFlight": { | |
| "triggerHz": 100, | |
| "rearmHz": 45, | |
| "minimumPoweredSeconds": 0.35, | |
| "maximumPoweredSeconds": 0.9, | |
| "quietBeforeLandingSeconds": 0.06, | |
| "heightTargetMm": [ | |
| 2.2, | |
| 3 | |
| ], | |
| "speedTargetMmS": [ | |
| 16, | |
| 24 | |
| ], | |
| "altitudeOmega": 24, | |
| "landingOmega": 16, | |
| "maxSubstepSeconds": 0.002, | |
| "contactThresholdMm": 0.025, | |
| "postLandingCooldownSeconds": 0.2, | |
| "wingDeploymentTauSeconds": 0.022, | |
| "wingFoldingTauSeconds": 0.065, | |
| "sequenceReference": "https://journals.biologists.com/jeb/article/211/3/341/18097/Performance-trade-offs-in-the-flight-initiation-of", | |
| "scope": "Authored bounded flight controller triggered by computed DNp01 rates. Numerical movement gains are illustrative, not fitted physiology." | |
| } | |
| }, | |
| "body": { | |
| "source": "https://github.com/NeLy-EPFL/fly-svg-maker/tree/152506d3471646f009480c81f34aefbaec29a6e5", | |
| "description": "Official NeuroMechFly micro-CT-derived female specimen meshes and kinematic tree used to visualize the male-connectome experiment", | |
| "segments": 69, | |
| "uniqueMeshes": 39, | |
| "meshLicense": "Apache-2.0", | |
| "kinematicCodeLicense": "MIT", | |
| "wings": { | |
| "foldedDegrees": { | |
| "pitch": 30, | |
| "leftRoll": 0, | |
| "rightRoll": 0, | |
| "leftYaw": 5, | |
| "rightYaw": -5 | |
| }, | |
| "extendedDegrees": { | |
| "pitch": 10, | |
| "leftRoll": -75, | |
| "rightRoll": 75, | |
| "leftYaw": 20, | |
| "rightYaw": -20 | |
| }, | |
| "flapAmplitudeDegrees": 35, | |
| "flapStartsAboveExtension": 0.7, | |
| "wingbeatHz": 277, | |
| "temporalExposures": 3, | |
| "hinges": "Original measured positions, unchanged", | |
| "clock": "Interpolated neural time; no animation progress beyond computed simulation time" | |
| }, | |
| "gaitPosture": { | |
| "method": "Damped Jacobian null-space posture correction around standing pose calibrated once from measured skeleton; foot targets and measured joint limits preserved", | |
| "timeConstantMs": 120, | |
| "maximumElapsedMs": 50, | |
| "settledJointToleranceRad": 0.001, | |
| "skipJacobianWhenFootAndPostureConverged": true | |
| } | |
| }, | |
| "compute": { | |
| "runtime": "@huggingface/kernels 0.0.1-preview.1, pinned npm dependency", | |
| "sparseOperator": "Outgoing CSR with 19 sparse delayed spike queues, indirect four-source workgroups and fused integration/event/reset on the kernel runtime GPUDevice", | |
| "deviceBridge": "Pinned and guarded tensor.runtime.host.device implementation interface", | |
| "decoder": "Official MatMul on 18 gathered resident motor-neuron counts (6x18); single readback fence for full counts and motor rates; all six outputs compared to JavaScript each batch", | |
| "kernels": { | |
| "Identity": "88a09b2fc38107f00e33af195ca4507df772967e", | |
| "MatMul": "16a3da1933ef99f9daf823f87569cd12b6429d66" | |
| }, | |
| "fallback": "JavaScript reference; runtime GPU failure restarts from reset state" | |
| }, | |
| "limitations": [ | |
| "Model transfer from female brain research to male CNS is unvalidated.", | |
| "Unknown/histamine fast signaling, intrinsic heterogeneity, receptor-specific dynamics, gap junctions and neuromodulation omitted.", | |
| "Some pulses lead to sustained recurrent activity even after the input and body motion settle.", | |
| "Body mesh comes from a female specimen. Movement gains, activation thresholds, pulse envelopes, gait and flight are authored for the demo, not fitted or validated against animal behavior.", | |
| "Computed spikes drive an illustrative controller rather than individual muscles. Ground contact, aerodynamics and body-to-neural sensory feedback are omitted." | |
| ], | |
| "rendering": { | |
| "interface": "Reference split layout with responsive toolbars and a single enlarged fly canvas beneath title, transport/camera controls and specimen/scale overlays", | |
| "surfaceDetail": "Authored compound-eye facets, cuticle variation, illustrative wing veins and 319 attached bristles; source scan geometry and hinges unchanged", | |
| "depthOfField": { | |
| "method": "One scene render, beauty depth texture, alpha-preserving BokehShader and MacroOutputPass (always enabled)", | |
| "focus": "Head centre in camera-space depth", | |
| "aperture": 0.0012, | |
| "maximumBlur": 0.004, | |
| "transparentWingDepthWrite": false, | |
| "optional": true | |
| }, | |
| "maximumPixelRatio": 1.5, | |
| "maximumRenderPixels": 1200000, | |
| "camera": { | |
| "fieldOfViewDegrees": 30, | |
| "sideOffsetMm": [ | |
| 3.2, | |
| -5.7, | |
| 1.9 | |
| ], | |
| "bodyTargetMm": [ | |
| -0.4, | |
| 0, | |
| 0.68 | |
| ], | |
| "flightDistanceMultiplier": 1.5, | |
| "following": "Side has a fixed world viewing angle with full position tracking; Top fixed overhead; Follow rear three-quarter chase camera with 160 ms neural-time heading smoothing. Manual orbit releases heading tracking.", | |
| "followOffsetMm": [ | |
| -5.5, | |
| -4.8, | |
| 2.8 | |
| ], | |
| "overlayFraming": "Vertical projection offset centers camera target between header/camera and specimen overlays" | |
| }, | |
| "fontLicense": "SIL Open Font License 1.1", | |
| "brainView": { | |
| "rotationAboutXDegrees": 25, | |
| "cameraBounds": "0.01%\u201399.99% projected coordinate quantiles; framing only, membership unchanged", | |
| "members": 124296, | |
| "visibleAt920By460": 124295, | |
| "projection": "Rigid orthographic view with uniform scale; all official positions and hit tests retained" | |
| }, | |
| "backdrop": { | |
| "edgeSRGB": "#10171d", | |
| "centerSRGB": "#202a35", | |
| "composite": "Unpremultiply linear scene before tone mapping; composite against encoded gradient after color-space transform", | |
| "groundFade": "Camera-space depth; start=max(9 mm,camera target distance+2 mm), end=start+15 mm" | |
| }, | |
| "icons": "Official Lucide paintbrush, eraser and footprints; bundled ISC/MIT license notices", | |
| "setup": { | |
| "initial": "Blocking native modal with Download & start; no anatomy or weight download before explicit action", | |
| "ready": "Unlock painting only after anatomy, fly meshes and compute initialization finish", | |
| "recovery": "Progress, checked cached weight reuse, asset/worker retry and automatic CPU fallback", | |
| "labels": { | |
| "presets": "Actions", | |
| "escapeAction": "Fly", | |
| "escapeReadout": "Escape drive" | |
| } | |
| } | |
| } | |
| } | |