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docs: Added README.md and LICENSE

Sofus Albert Høgsbro Rose 2024-03-14 12:33:49 +01:00
parent f980b53348
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GPG Key ID: AD901CB0F3701434
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# Binary
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####################
# - Standard Ignores
####################
dev
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__pycache__
*.blend1
*.blend2
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####################
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proj_[1-9].pdf
hw_[1-9].pdf
notes_[1-9][1-9].pdf
proj_[1-9][1-9].pdf
hw_[1-9][1-9].pdf
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*.out
*.toc
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*.cb
*.cb2
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# Uncomment the next line to have this generated file ignored.
#*Notes.bib

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GNU AFFERO GENERAL PUBLIC LICENSE
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# Nodes
**LEGEND**:
- [-] Exists but doesn't quite work good enough.
- [x] Done to working degree (the standard is "good enough for the demo").
- See check marks underneath
- [?] Unsure whether we should do this.
# Blender Maxwell
*A tool for fast, intuitive, and real-time design and visualization of Maxwell PDE Simulations in Blender 3D*.
## Inputs
[x] Wave Constant
- [x] Implement export of frequency / wavelength array/range.
[-] Unit System
- [ ] Implement presets, including "Tidy3D" and "Blender", shown in the label row.
**WARNING: This is alpha software. Expect bugs, lacking documentation, and jankiness. Expect breaking changes without warning. Here be dragons, growl growl...**
[ ] Constants / Scientific Constant
[x] Constants / Number Constant
[ ] Constants / Physical Constant
- [ ] Pol: Elliptical plot viz
- [ ] Pol: Poincare sphere viz
[x] Constants / Blender Constant
Blender Maxwell is a tool for creating and analyzing electromagnetic PDE simulations, with a particular focus on nano-/micro-scale phenomena.
In particular, this tool seeks to make working with FDTD ("Finite-Difference Time-Domain") intuitive and fun:
[x] Web / Tidy3D Web Importer
- **Rapid Node-Based Simulation Design and Visualization**: Rapidly create and visualize complex FDTD simulations with a novel visual programming language, implemented within Blender's (<https://www.blender.org/>) Python API.
- **Deep Tidy3D Integration**: Submit, run, monitor, and retrieve FDTD simulation results from the high-performance, state-of-the-art commercial FDTD solver "Tidy3D" (<https://www.flexcompute.com/tidy3d/solver/>), leveraging their Python client library `tidy3d`.
[ ] File Import / JSON File Import
- [ ] Dropdown to choose various supported JSON-sourced objects incl.
[ ] File Import / Tidy3D File Import
- [ ] Implement HDF-based import of Tidy3D-exported object (which includes ex. mesh data and such)
[ ] File Import / Array File Import
- [ ] Standardize 1D and 2D array loading/saving on numpy's savetxt with gzip enabled.
- [ ] Implement datatype dropdown to guide format from disk, prefilled to detected.
- [ ] Implement unit system input to guide conversion from numpy data type.
- [ ] Implement a LazyValue to provide a data path that avoids having to load massive arrays every time always.
**Development of this tool is made possible with support from the Technical University of Denmark / DTU Electro / Metamaterials Department. They provided the opportunity to develop the tool as part of the author's BSc Eng thesis, and provided funding for a professional Tidy3D license.**
## Outputs
[x] Viewer
- [ ] **BIG ONE**: Remove image preview when disabling plots.
- [ ] Either enforce singleton, or find a way to have several viewers at the same time.
- [ ] A setting that live-previews just a value.
- [ ] Pop-up multiline string print as alternative to console print.
- [x] Toggleable auto-plot, auto-3D-preview, auto-value-view, (?)auto-text-view.
## Key Features
- **Parametric Design**: Leverage Blender's parametric, non-destructive geometry generator: "Geometry Nodes". <https://docs.blender.org/manual/en/latest/modeling/geometry_nodes/introduction.html>).
- **Live Processing and Visualization**: Quickly understand the nature of data flowing through the node graph, be it a simulation input or output, with the help of (soft-)real-time 2D plots and 3D visualizations tailored to each node.
- **Prioritization of UX**: Much work has gone into node graphs and workflows feeling and acting "right". Here, "right" is an ideal of optimizing for clarity, responsiveness, and features, in roughly that order.
[x] Web Export / Tidy3D Web Exporter
- [ ] We need better ways of doing checks before uploading, like for monitor data size. Maybe a SimInfo node?
- [ ] We need to be able to "delete and re-upload" (or maybe just delete from the interface).
- [x] Implement estimation of monitor storage
- [x] Implement cost estimation
- [?] Merge with the Tidy3D File Import (since both are working with HDFs; the web one only really does downloading too).
## "Free" in License and Spirit
Blender Maxwell is **free (as in freedom) software** (aka. *open source*).
It endeavors to **discourage** lock-in:
- All simulation components and results are easily imported and exported as open formats, `.json`, `.hdf`, `.png` for plots, etc.. *This is especially possible thanks to the fully open-source `tidy3d` client.*
- Simulation `.blend` files can be **freely shared and used** by absolutely anyone (with the sole exception of *running new simulations on the Tidy3D cloud*, which requires a Tidy3D license + API Key). *This is possible because Blender (and its file format `.blend`) is free (as in freedom) software, meaning the design and results of your work will never be locked up*.
- The entire simulation workspace is scriptable. This makes it easy to write custom scripts to fitting experimental material properties from specialized formats, auto-generating simulation node graphs for educational purposes, and more.
- The license (see License section) enables anyone to ex. to make their own nodes, examine the way certain operations are implemented, audit the source code (to comply with ex. institutional security policies), and/or make similar software by copy-pasting any useful parts of this program.
[x] File Export / JSON File Export
[ ] File Import / Tidy3D File Export
- [ ] Implement HDF-based export of Tidy3D-exported object (which includes ex. mesh data and such)
[ ] File Export / Array File Export
- [ ] Implement datatype dropdown to guide format on disk.
- [ ] Implement unit system input to guide conversion to numpy data type.
- [ ] Standardize 1D and 2D array loading/saving on numpy's savetxt with gzip enabled.
**We hope you'll consider saying hello in an Issue, reporting bugs, and/or contributing any changes you find useful!**
## Viz
[x] Monitor Data Viz
- [x] Implement dropdown to choose which monitor in the SimulationData should be visualized (based on which are available in the SimulationData), and implement visualization based on every kind of monitor-adjascent output data type (<https://docs.flexcompute.com/projects/tidy3d/en/latest/api/output_data.html>)
- [ ] Project field values onto a plane object (managed)
## Sources
[x] Temporal Shapes / Gaussian Pulse Temporal Shape
[x] Temporal Shapes / Continuous Wave Temporal Shape
[ ] Temporal Shapes / Symbolic Temporal Shape
- [ ] Specify a Sympy function to generate appropriate array based on
[ ] Temporal Shapes / Array Temporal Shape
[x] Point Dipole Source
- [ ] Consider a "real" mesh - the empty kind of gets stuck inside of the sim domain.
[-] Plane Wave Source
- [ ] **IMPORTANT**: Fix the math so that an actually valid construction emerges!!
- [x] Implement an oriented vector input with 3D preview.
[ ] Uniform Current Source
[ ] TFSF Source
# Simulator Support
Only Tidy3D is supported, via the `tidy3d` client.
[ ] Gaussian Beam Source
[ ] Astigmatic Gaussian Beam Source
`tidy3d` was chosen as the "lingua franca" client for declarative FDTD simulation definition, in large part because it is "just that good".
Other simulators are theoretically possible to integrate; however, this would involve writing a translation layer from the `tidy3d`.
[ ] Mode Source
## Why Tidy3D?
FDTD simulation can easily take days, be very complex to design, and fail in intricate ways.
[ ] Array Source / EH Array Source
[ ] Array Source / EH Equivilance Array Source
As what might be the fastest FDTD simulator on the market today, Tidy3D is the "secret sauce" of the rapid iteration loops that Blender Maxwell attempts to help realize.
It turns **days into minutes** when running useful, real-world simulation tasks.
Moreover, Tidy3D provides a very well-made and -documented open-source Python client library, `tidy3d`, which is a massively helpful resource when developing such a tool.
## Mediums
[x] Library Medium
- [ ] Implement frequency range output
[ ] PEC Medium
[ ] Isotropic Medium
[ ] Anisotropic Medium
Due to its quality, performance, and lack of "lock-in", I believe Tidy3D is an ideal and future-proof choice of simulator integration for this project.
[ ] Sellmeier Medium
[ ] Drude Medium
[ ] Drude-Lorentz Medium
[ ] Debye Medium
[ ] Pole-Residue Medium
[ ] Non-Linearity / `chi_3` Susceptibility Non-Linearity
[ ] Non-Linearity / Two-Photon Absorption Non-Linearity
[ ] Non-Linearity / Kerr Non-Linearity
[ ] Space/Time epsilon/mu Modulation
## Structures
[ ] BLObject Structure
[x] GeoNodes Structure
- [x] Rewrite the `bl_socket_map.py`
- [x] Use the modifier itself as memory, via the ManagedObj
- [?] When GeoNodes themselves declare panels, implement a grid-like tab system to select which sockets should be exposed in the node at a given point in time.
# License
This software is provided under the terms of the "AGPL software license", as specified in the `LICENSE` file.
If you would like a different license, please contact the author(s).
[ ] Primitive Structures / Plane Structure
[x] Primitive Structures / Box Structure
[x] Primitive Structures / Sphere Structure
[ ] Primitive Structures / Cylinder Structure
[ ] Primitive Structures / Ring Structure
[ ] Primitive Structures / Capsule Structure
[ ] Primitive Structures / Cone Structure
In general (*not legal advice*), AGPL means you can **use, modify, redistribute, and even sell (copies of)** this project (or simulation node graphs made with it) for any reason, **so long as you also provide these same kinds of freedoms to anyone you share it (copies) with** (including stating any changes you made).
## Monitors
- **ALL**: "Steady-State" / "Time Domain" (only if relevant).
If you wish to contribute, you must also agree to do so under the terms of this license.
For more information on AGPL, see (<https://www.gnu.org/licenses/gpl-faq.html>) or seek legal advice.
[x] E/H Field Monitor
- [x] Monitor Domain as dropdown with Frequency or Time
- [x] Axis-aligned planar 2D (pixel) and coord-aligned box 3D (voxel).
[ ] Field Power Flux Monitor
- [ ] Monitor Domain as dropdown with Frequency or Time
- [ ] Axis-aligned planar 2D (pixel) and coord-aligned box 3D (voxel).
[ ] \epsilon Tensor Monitor
- [ ] Axis-aligned planar 2D (pixel) and coord-aligned box 3D (voxel).
[ ] Diffraction Monitor
- [ ] Axis-aligned planar 2D (pixel)
## Do's and Don'ts
It can sometimes be a bit confusing to figure out exactly what you're allowed to do with a piece of software.
If in doubt, don't hesitate to ask.
[ ] Projected E/H Field Monitor / Cartesian Projected E/H Field Monitor
- [ ] Use to implement the metalens: <https://docs.flexcompute.com/projects/tidy3d/en/latest/notebooks/Metalens.html>
[ ] Projected E/H Field Monitor / Angle Projected E/H Field Monitor
[ ] Projected E/H Field Monitor / K-Space Projected E/H Field Monitor
**Do**: Anything you want with exported simulation output, ex. plots, images, arrays/fields (as ex. HDF, OpenVDB, text, etc.), renders, and so on.
To be very clear, and to dispel a common misunderstanding: AGPL doesn't apply to exported results; exported results are NOT subject to AGPL(-compatible) terms.
In general, when you share something you made **using** Blender Maxwell, AGPL DOESN'T apply; if you share something you made **including** part (or all) of Blender Maxwell, AGPL DOES apply.
- **TODO**: "Modal" solver monitoring (seems to be some kind of spatial+frequency feature, which an EM field can be decomposed into using a specially configured solver, which can be used to look for very particular kinds of effects by constraining investigations of a solver result to filter out everything that isn't these particular modes aka. features. Kind of a fourier-based redimensionalization, almost).
**Don't**: Share `.blend` files containing a Blender Maxwell node graph **without an AGPL(-compatible) license**.
Since node graphs are *source code* (visual code is also code) for software that *includes part of Blender Maxwell*, sharing a node graph requires *sharing a part of Blender Maxwell*.
Therefore, the AGPL applies.
## Simulations
[-] FDTDSim
**Do**: Take a moment to explore the dependencies, including Blender and `tidy3d` of course, but also `numpy`, `sympy`, `xarray`, `networkx`, `pydantic`, `jax` etc.!
They are not only fantastic pieces of engineering, but are themselves licensed under similar "open source" terms that made this tool possible.
[x] Sim Domain
- [ ] By-Medium batching of Structures when building the td.Simulation object, which can have significant performance implications.
[x] Boundary Conds
- [x] Rename from Bounds / BoundBox
[ ] Boundary Cond / PML Bound Face
- [ ] Implement dropdown for "Normal" and "Stable"
[ ] Boundary Cond / PEC Bound Face
[ ] Boundary Cond / PMC Bound Face
[ ] Boundary Cond / Bloch Bound Face
[ ] Boundary Cond / Periodic Bound Face
[ ] Boundary Cond / Absorbing Bound Face
[ ] Sim Grid
[ ] Sim Grid Axes / Auto Sim Grid Axis
[ ] Sim Grid Axes / Manual Sim Grid Axis
[ ] Sim Grid Axes / Uniform Sim Grid Axis
[ ] Sim Grid Axes / Array Sim Grid Axis
## Converters
[ ] Math
- [ ] Implement common operations w/secondary choice of socket type based on a custom internal data structure
- [ ] Implement angfreq/frequency/vacwl conversion.
[ ] Separate
[ ] Combine
- [ ] Implement concatenation of sim-critical socket types into their multi-type
# GeoNodes
[ ] Tests / Monkey (suzanne deserves to be simulated, she may need manifolding up though :))
[ ] Tests / Wood Pile
[ ] Primitives / Plane
[ ] Primitives / Box
[ ] Primitives / Sphere
[ ] Primitives / Cylinder
[ ] Primitives / Ring
[ ] Primitives / Capsule
[ ] Primitives / Cone
[ ] Array / Square Array **NOTE: Ring and cylinder**
[ ] Array / Hex Array **NOTE: Ring and cylinder**
[ ] Hole Array / Square Hole Array: Takes a primitive hole shape.
[ ] Hole Array / Hex Hole Array: Takes a primitive hole shape.
[ ] Cavity Array / Hex Array w/ L-Cavity
[ ] Cavity Array / Hex Array w/ H-Cavity
[ ] Crystal Sphere Lattice / Sphere FCC Array
[ ] Crystal Sphere Lattice / Sphere BCC Array
# Benchmark / Example Sims
[ ] Research-Grade Experiment
- Membrane 15nm thickness suspended in air
- Square lattice of holes period 900nm (900nm between each hole, air inside holes)
- Holes square radius 100nm
- Square lattice
- Analysis of transmission
- Guided mode resonance
[ ] Tunable Chiral Metasurface <https://docs.flexcompute.com/projects/tidy3d/en/latest/notebooks/TunableChiralMetasurface.html>
# Sockets
## Basic
[x] Any
[x] Bool
[x] String
- [ ] Rename from "Text"
[x] File Path
[x] Color
## Number
[x] Integer
[x] Rational
- [ ] Implement constrained SympyExpr check for Rational.
[x] Real
- [ ] Implement min/max for ex. 0..1 factor support.
- [ ] Implement constrained SympyExpr check for Rational.
[x] Complex
## Blender
[x] Object
- [ ] Implement default SocketDef object name
[x] Collection
- [ ] Implement default SocketDef collection name
[x] Image
- [ ] Implement default SocketDef image name
[x] GeoNodes
- [ ] Implement default SocketDef geonodes name
[x] Text
- [ ] Implement default SocketDef object name
## Maxwell
[x] Bound Conds
[ ] Bound Cond
[x] Medium
[ ] Medium Non-Linearity
[x] Source
[ ] Temporal Shape
- [ ] Sane-default pulses for easy access.
[ ] Structure
[ ] Monitor
[ ] FDTD Sim
[ ] Sim Domain
- [?] Toggleable option to sync the simulation time duration to the scene end time (how to handle FPS vs time-step? Should we adjust the FPS such that there is one time step per frame, while keeping the definition of "second" aligned to a unit system?)
[ ] Sim Grid
[ ] Sim Grid Axis
[ ] Simulation Data
## Tidy3D
[x] Cloud Task
- [ ] Implement switcher for API-key-having config filconfig file vs. direct entry of API key. It should be auto-filled with the config file when such a thing exists.
## Physical
[x] Unit System
- [ ] Implement more comprehensible UI; honestly, probably with the new panels (<https://developer.blender.org/docs/release_notes/4.1/python_api/>)
[x] Time
[x] Angle
[ ] Solid Angle (steradian)
[x] Frequency (hertz)
[ ] Angular Frequency (`rad*hertz`)
### Cartesian
[x] Length
[x] Area
[x] Volume
[ ] Point 1D
[ ] Point 2D
[x] Point 3D
[ ] Size 2D
[x] Size 3D
[ ] Rotation 3D
- [ ] Implement Euler methods
- [ ] Implement Quaternion methods
### Mechanical
[ ] Mass
[x] Speed
[ ] Velocity 3D
[x] Acceleration Scalar
[ ] Acceleration 3D
[x] Force Scalar
[ ] Force 3D
[ ] Pressure
### Energy
[ ] Energy (joule)
[ ] Power (watt)
[ ] Temperature
### Electrodynamical
[ ] Current (ampere)
[ ] Current Density 3D
[ ] Charge (coulomb)
[ ] Voltage (volts)
[ ] Capacitance (farad)
[ ] Resistance (ohm)
[ ] Electric Conductance (siemens)
[ ] Magnetic Flux (weber)
[ ] Magnetic Flux Density (tesla)
[ ] Inductance (henry)
[ ] Electric Field 3D (`volt*meter`)
[ ] Magnetic Field 3D (tesla)
### Luminal
[ ] Luminous Intensity (candela)
[ ] Luminous Flux (lumen)
[ ] Illuminance (lux)
### Optical
[ ] Jones Polarization
[ ] Polarization (Stokes)
# Style
[ ] Rethink the meaning of color and shapes in node sockets, including whether dynamic functionality is needed when it comes to socket shape (ex. it might be nice to know whether a socket is array-like or uses units).
[ ] Rethink the meaning of color and shapes in node sockets, including whether dynamic functionality is needed when it comes to socket shape.
# Architecture
## Registration and Contracts
[x] Finish the contract code converting from Blender sockets to our sockets based on dimensionality and the property description.
[ ] Refactor the node category code; it's ugly.
[?] Would be nice with some kind of indicator somewhere to help set good socket descriptions when using geonodes and wanting units.
## Managed Objects
[x] Implement modifier support on the managed BL object, with special attention paid to the needs of the GeoNodes socket.
- [x] Implement preview toggling too, ex. using the relevant node tree collections
- Remember, the managed object is "dumb". It's the node's responsibility to react to any relevant `on_value_change`, and forward all state needed by the modifier to the managed obj. It's only the managed obj's responsibility to not update any modifier value that wouldn't change anything.
[ ] Implement loading the xarray-defined voxels into OpenVDB, saving it, and loading it as a managed BL object with the volume setting.
[ ] Implement basic jax-driven volume voxel processing, especially cube based slicing.
[ ] Implement jax-driven linear interpolation of volume voxels to an image texture, whose pixels are sized according to the dimensions of another managed plane object (perhaps a uniquely described Managed BL object itself).
## Utils or Services
[ ] Dedicated module for managing the interaction with the tidy3d cloud, to help nuke all the random caches out of existance.
## Node Base Class
[ ] Dedicated `draw_preview`-type draw functions for plot customizations.
- [ ] For now, previewing isn't something I think should be part of the node
[ ] Custom `@cache`/`@lru_cache`/`@cached_property` which caches by instance ID (possibly based on `beartype` or `pydantic`).
[ ] When presets are used, if a preset is selected and the user alters a preset setting, then dynamically switch the preset indicator back to "Custom" to indicate that there is no active preset
[ ] It seems that `node.inputs` and `node.outputs` allows the use of a `move` method, which may allow reordering sockets dynamically, which we should expose to the user as user-configurable ordering rules (maybe resolved with a constraint solver).
[?] Mechanism for dynamic names (ex. "Library Medium" becoming "Au Medium")
[-] Mechanism for selecting a blender object managed by a particular node.
[ ] Mechanism for ex. specially coloring a node that is currently participating in the preview.
[ ] Custom callbacks when deleting a node (in `free()`), to ex. delete all previews with the viewer node.
## Socket Base Class
[ ] A feature `use_array` which allows a socket to declare that it can be both a single value and array-like (possibly constrained to a given shape). This should also allow the SocketDef to request that the input socket be initialised as a multi-input socket, once Blender updates to support those.
- [ ] Implement a shape-selector, with a dropdown for dimensionality and an appropriate `IntegerVectorProperty` for each kind of shape (supporting also straight-up inf), which is declared to the node that supports array-likeness so it can decide how exactly to expose properties in the array-like context of things.
[ ] Make `to_socket`s no-consent to new links from `from_socket`s of differing type (we'll see if this controls the typing story enough for now, and how much we'll need capabilities in the long run)
- [?] Alternatively, reject non matching link types, and red-mark non matching capabilities?
## Many Nodes
[ ] Implement LazyValue stuff, including LazyParamValue on a new class of constant-like input nodes that really just emit ex. sympy variables.
[?] Require a Unit System for nodes that construct Tidy3D objects
[ ] Medium Features
- [ ] Accept spatial field. Else, spatial uniformity.
- [ ] Accept non-linearity. Else, linear.
- [ ] Accept space-time modulation. Else, static.
[ ] Modal Features
- [ ] ModeSpec, for use by ModeSource, ModeMonitor, ModeSolverMonitor. Data includes ModeSolverData, ModeData, ScalarModeFieldDataArray, ModeAmpsDataArray, ModeIndexDataArray, ModeSolver.
## Development Tooling
[ ] Implement `rye` support
[ ] Setup neovim to be an ideal editor
## Version Churn
[ ] Implement real StrEnum sockets, since they appear in py3.11
[ ] Think about implementing new panels where appropriate (<https://developer.blender.org/docs/release_notes/4.1/python_api/>)
[ ] Think about using the new bl4.1 file handler API to enable drag and drop creation of appropriate nodes (for importing files without hassle).
[ ] Keep an eye on our manual `__annotations__` hacking; python 3.13 is apparently fucking with it.
[ ] Plan for multi-input sockets <https://projects.blender.org/blender/blender/commit/14106150797a6ce35e006ffde18e78ea7ae67598> (for now, just use the "Combine" node and have seperate socket types for both).
[ ] Keep an eye out for volume geonodes in 4.2 (July 16, 2024), which will better allow for more complicated volume processing (we might still want/need the jax based stuff after, but let's keep it minimal just in case)
## Packaging
[ ] Allow specifying custom dir for keeping pip dependencies, so we can unify prod and dev (currently we hard-code a dev dependency path).
[ ] Refactor top-level `__init__.py` to check dependencies first. If not everything is available, it should only register a minimal addon; specifically, a message telling the user that the addon requires additional dependencies (list which), and the button to install them. When the installation is done, re-check deps and register the rest of the addon.
[ ] Use a Modal and multiline-text-like construction to print `pip install` as we install dependencies, so that the user has an idea that something is happening.
[ ] Test on Windows
## Node Tree Cache Semantics
# TIDY3D BUGS
- Directly running `SimulationTask.get()` is bugged - it doesn't return some fields, including `created_at`. Listing tasks by folder is not broken.
**Don't**: Worry about whether your `.blend` file is licensed correctly.
By default, Blender Maxwell should include license information in the node graph (feel free to change the license, just mind that your choice is AGPL-compatible).
When you do share simulation `.blend`s, it's probably a good idea to briefly communicate the terms anyway, just to everyone's on the same page.

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# Nodes
**LEGEND**:
- [-] Exists but doesn't quite work good enough.
- [x] Done to working degree (the standard is "good enough for the demo").
- See check marks underneath
- [?] Unsure whether we should do this.
## Inputs
[x] Wave Constant
- [x] Implement export of frequency / wavelength array/range.
[-] Unit System
- [ ] Implement presets, including "Tidy3D" and "Blender", shown in the label row.
[ ] Constants / Scientific Constant
[x] Constants / Number Constant
[ ] Constants / Physical Constant
- [ ] Pol: Elliptical plot viz
- [ ] Pol: Poincare sphere viz
[x] Constants / Blender Constant
[x] Web / Tidy3D Web Importer
[ ] File Import / JSON File Import
- [ ] Dropdown to choose various supported JSON-sourced objects incl.
[ ] File Import / Tidy3D File Import
- [ ] Implement HDF-based import of Tidy3D-exported object (which includes ex. mesh data and such)
[ ] File Import / Array File Import
- [ ] Standardize 1D and 2D array loading/saving on numpy's savetxt with gzip enabled.
- [ ] Implement datatype dropdown to guide format from disk, prefilled to detected.
- [ ] Implement unit system input to guide conversion from numpy data type.
- [ ] Implement a LazyValue to provide a data path that avoids having to load massive arrays every time always.
## Outputs
[x] Viewer
- [ ] **BIG ONE**: Remove image preview when disabling plots.
- [ ] Either enforce singleton, or find a way to have several viewers at the same time.
- [ ] A setting that live-previews just a value.
- [ ] Pop-up multiline string print as alternative to console print.
- [x] Toggleable auto-plot, auto-3D-preview, auto-value-view, (?)auto-text-view.
[x] Web Export / Tidy3D Web Exporter
- [ ] We need better ways of doing checks before uploading, like for monitor data size. Maybe a SimInfo node?
- [ ] We need to be able to "delete and re-upload" (or maybe just delete from the interface).
- [x] Implement estimation of monitor storage
- [x] Implement cost estimation
- [?] Merge with the Tidy3D File Import (since both are working with HDFs; the web one only really does downloading too).
[x] File Export / JSON File Export
[ ] File Import / Tidy3D File Export
- [ ] Implement HDF-based export of Tidy3D-exported object (which includes ex. mesh data and such)
[ ] File Export / Array File Export
- [ ] Implement datatype dropdown to guide format on disk.
- [ ] Implement unit system input to guide conversion to numpy data type.
- [ ] Standardize 1D and 2D array loading/saving on numpy's savetxt with gzip enabled.
## Viz
[x] Monitor Data Viz
- [x] Implement dropdown to choose which monitor in the SimulationData should be visualized (based on which are available in the SimulationData), and implement visualization based on every kind of monitor-adjascent output data type (<https://docs.flexcompute.com/projects/tidy3d/en/latest/api/output_data.html>)
- [ ] Project field values onto a plane object (managed)
## Sources
[x] Temporal Shapes / Gaussian Pulse Temporal Shape
[x] Temporal Shapes / Continuous Wave Temporal Shape
[ ] Temporal Shapes / Symbolic Temporal Shape
- [ ] Specify a Sympy function to generate appropriate array based on
[ ] Temporal Shapes / Array Temporal Shape
[x] Point Dipole Source
- [ ] Consider a "real" mesh - the empty kind of gets stuck inside of the sim domain.
[-] Plane Wave Source
- [ ] **IMPORTANT**: Fix the math so that an actually valid construction emerges!!
- [x] Implement an oriented vector input with 3D preview.
[ ] Uniform Current Source
[ ] TFSF Source
[ ] Gaussian Beam Source
[ ] Astigmatic Gaussian Beam Source
[ ] Mode Source
[ ] Array Source / EH Array Source
[ ] Array Source / EH Equivilance Array Source
## Mediums
[x] Library Medium
- [ ] Implement frequency range output
[ ] PEC Medium
[ ] Isotropic Medium
[ ] Anisotropic Medium
[ ] Sellmeier Medium
[ ] Drude Medium
[ ] Drude-Lorentz Medium
[ ] Debye Medium
[ ] Pole-Residue Medium
[ ] Non-Linearity / `chi_3` Susceptibility Non-Linearity
[ ] Non-Linearity / Two-Photon Absorption Non-Linearity
[ ] Non-Linearity / Kerr Non-Linearity
[ ] Space/Time epsilon/mu Modulation
## Structures
[ ] BLObject Structure
[x] GeoNodes Structure
- [x] Rewrite the `bl_socket_map.py`
- [x] Use the modifier itself as memory, via the ManagedObj
- [?] When GeoNodes themselves declare panels, implement a grid-like tab system to select which sockets should be exposed in the node at a given point in time.
[ ] Primitive Structures / Plane Structure
[x] Primitive Structures / Box Structure
[x] Primitive Structures / Sphere Structure
[ ] Primitive Structures / Cylinder Structure
[ ] Primitive Structures / Ring Structure
[ ] Primitive Structures / Capsule Structure
[ ] Primitive Structures / Cone Structure
## Monitors
- **ALL**: "Steady-State" / "Time Domain" (only if relevant).
[x] E/H Field Monitor
- [x] Monitor Domain as dropdown with Frequency or Time
- [x] Axis-aligned planar 2D (pixel) and coord-aligned box 3D (voxel).
[ ] Field Power Flux Monitor
- [ ] Monitor Domain as dropdown with Frequency or Time
- [ ] Axis-aligned planar 2D (pixel) and coord-aligned box 3D (voxel).
[ ] \epsilon Tensor Monitor
- [ ] Axis-aligned planar 2D (pixel) and coord-aligned box 3D (voxel).
[ ] Diffraction Monitor
- [ ] Axis-aligned planar 2D (pixel)
[ ] Projected E/H Field Monitor / Cartesian Projected E/H Field Monitor
- [ ] Use to implement the metalens: <https://docs.flexcompute.com/projects/tidy3d/en/latest/notebooks/Metalens.html>
[ ] Projected E/H Field Monitor / Angle Projected E/H Field Monitor
[ ] Projected E/H Field Monitor / K-Space Projected E/H Field Monitor
- **TODO**: "Modal" solver monitoring (seems to be some kind of spatial+frequency feature, which an EM field can be decomposed into using a specially configured solver, which can be used to look for very particular kinds of effects by constraining investigations of a solver result to filter out everything that isn't these particular modes aka. features. Kind of a fourier-based redimensionalization, almost).
## Simulations
[-] FDTDSim
[x] Sim Domain
- [ ] By-Medium batching of Structures when building the td.Simulation object, which can have significant performance implications.
[x] Boundary Conds
- [x] Rename from Bounds / BoundBox
[ ] Boundary Cond / PML Bound Face
- [ ] Implement dropdown for "Normal" and "Stable"
[ ] Boundary Cond / PEC Bound Face
[ ] Boundary Cond / PMC Bound Face
[ ] Boundary Cond / Bloch Bound Face
[ ] Boundary Cond / Periodic Bound Face
[ ] Boundary Cond / Absorbing Bound Face
[ ] Sim Grid
[ ] Sim Grid Axes / Auto Sim Grid Axis
[ ] Sim Grid Axes / Manual Sim Grid Axis
[ ] Sim Grid Axes / Uniform Sim Grid Axis
[ ] Sim Grid Axes / Array Sim Grid Axis
## Converters
[ ] Math
- [ ] Implement common operations w/secondary choice of socket type based on a custom internal data structure
- [ ] Implement angfreq/frequency/vacwl conversion.
[ ] Separate
[ ] Combine
- [ ] Implement concatenation of sim-critical socket types into their multi-type
# GeoNodes
[ ] Tests / Monkey (suzanne deserves to be simulated, she may need manifolding up though :))
[ ] Tests / Wood Pile
[ ] Primitives / Plane
[ ] Primitives / Box
[ ] Primitives / Sphere
[ ] Primitives / Cylinder
[ ] Primitives / Ring
[ ] Primitives / Capsule
[ ] Primitives / Cone
[ ] Array / Square Array **NOTE: Ring and cylinder**
[ ] Array / Hex Array **NOTE: Ring and cylinder**
[ ] Hole Array / Square Hole Array: Takes a primitive hole shape.
[ ] Hole Array / Hex Hole Array: Takes a primitive hole shape.
[ ] Cavity Array / Hex Array w/ L-Cavity
[ ] Cavity Array / Hex Array w/ H-Cavity
[ ] Crystal Sphere Lattice / Sphere FCC Array
[ ] Crystal Sphere Lattice / Sphere BCC Array
# Benchmark / Example Sims
[ ] Research-Grade Experiment
- Membrane 15nm thickness suspended in air
- Square lattice of holes period 900nm (900nm between each hole, air inside holes)
- Holes square radius 100nm
- Square lattice
- Analysis of transmission
- Guided mode resonance
[ ] Tunable Chiral Metasurface <https://docs.flexcompute.com/projects/tidy3d/en/latest/notebooks/TunableChiralMetasurface.html>
# Sockets
## Basic
[x] Any
[x] Bool
[x] String
- [ ] Rename from "Text"
[x] File Path
[x] Color
## Number
[x] Integer
[x] Rational
- [ ] Implement constrained SympyExpr check for Rational.
[x] Real
- [ ] Implement min/max for ex. 0..1 factor support.
- [ ] Implement constrained SympyExpr check for Rational.
[x] Complex
## Blender
[x] Object
- [ ] Implement default SocketDef object name
[x] Collection
- [ ] Implement default SocketDef collection name
[x] Image
- [ ] Implement default SocketDef image name
[x] GeoNodes
- [ ] Implement default SocketDef geonodes name
[x] Text
- [ ] Implement default SocketDef object name
## Maxwell
[x] Bound Conds
[ ] Bound Cond
[x] Medium
[ ] Medium Non-Linearity
[x] Source
[ ] Temporal Shape
- [ ] Sane-default pulses for easy access.
[ ] Structure
[ ] Monitor
[ ] FDTD Sim
[ ] Sim Domain
- [?] Toggleable option to sync the simulation time duration to the scene end time (how to handle FPS vs time-step? Should we adjust the FPS such that there is one time step per frame, while keeping the definition of "second" aligned to a unit system?)
[ ] Sim Grid
[ ] Sim Grid Axis
[ ] Simulation Data
## Tidy3D
[x] Cloud Task
- [ ] Implement switcher for API-key-having config filconfig file vs. direct entry of API key. It should be auto-filled with the config file when such a thing exists.
## Physical
[x] Unit System
- [ ] Implement more comprehensible UI; honestly, probably with the new panels (<https://developer.blender.org/docs/release_notes/4.1/python_api/>)
[x] Time
[x] Angle
[ ] Solid Angle (steradian)
[x] Frequency (hertz)
[ ] Angular Frequency (`rad*hertz`)
### Cartesian
[x] Length
[x] Area
[x] Volume
[ ] Point 1D
[ ] Point 2D
[x] Point 3D
[ ] Size 2D
[x] Size 3D
[ ] Rotation 3D
- [ ] Implement Euler methods
- [ ] Implement Quaternion methods
### Mechanical
[ ] Mass
[x] Speed
[ ] Velocity 3D
[x] Acceleration Scalar
[ ] Acceleration 3D
[x] Force Scalar
[ ] Force 3D
[ ] Pressure
### Energy
[ ] Energy (joule)
[ ] Power (watt)
[ ] Temperature
### Electrodynamical
[ ] Current (ampere)
[ ] Current Density 3D
[ ] Charge (coulomb)
[ ] Voltage (volts)
[ ] Capacitance (farad)
[ ] Resistance (ohm)
[ ] Electric Conductance (siemens)
[ ] Magnetic Flux (weber)
[ ] Magnetic Flux Density (tesla)
[ ] Inductance (henry)
[ ] Electric Field 3D (`volt*meter`)
[ ] Magnetic Field 3D (tesla)
### Luminal
[ ] Luminous Intensity (candela)
[ ] Luminous Flux (lumen)
[ ] Illuminance (lux)
### Optical
[ ] Jones Polarization
[ ] Polarization (Stokes)
# Style
[ ] Rethink the meaning of color and shapes in node sockets, including whether dynamic functionality is needed when it comes to socket shape (ex. it might be nice to know whether a socket is array-like or uses units).
[ ] Rethink the meaning of color and shapes in node sockets, including whether dynamic functionality is needed when it comes to socket shape.
# Architecture
## Registration and Contracts
[x] Finish the contract code converting from Blender sockets to our sockets based on dimensionality and the property description.
[ ] Refactor the node category code; it's ugly.
[?] Would be nice with some kind of indicator somewhere to help set good socket descriptions when using geonodes and wanting units.
## Managed Objects
[x] Implement modifier support on the managed BL object, with special attention paid to the needs of the GeoNodes socket.
- [x] Implement preview toggling too, ex. using the relevant node tree collections
- Remember, the managed object is "dumb". It's the node's responsibility to react to any relevant `on_value_change`, and forward all state needed by the modifier to the managed obj. It's only the managed obj's responsibility to not update any modifier value that wouldn't change anything.
[ ] Implement loading the xarray-defined voxels into OpenVDB, saving it, and loading it as a managed BL object with the volume setting.
[ ] Implement basic jax-driven volume voxel processing, especially cube based slicing.
[ ] Implement jax-driven linear interpolation of volume voxels to an image texture, whose pixels are sized according to the dimensions of another managed plane object (perhaps a uniquely described Managed BL object itself).
## Utils or Services
[ ] Dedicated module for managing the interaction with the tidy3d cloud, to help nuke all the random caches out of existance.
## Node Base Class
[ ] Dedicated `draw_preview`-type draw functions for plot customizations.
- [ ] For now, previewing isn't something I think should be part of the node
[ ] Custom `@cache`/`@lru_cache`/`@cached_property` which caches by instance ID (possibly based on `beartype` or `pydantic`).
[ ] When presets are used, if a preset is selected and the user alters a preset setting, then dynamically switch the preset indicator back to "Custom" to indicate that there is no active preset
[ ] It seems that `node.inputs` and `node.outputs` allows the use of a `move` method, which may allow reordering sockets dynamically, which we should expose to the user as user-configurable ordering rules (maybe resolved with a constraint solver).
[?] Mechanism for dynamic names (ex. "Library Medium" becoming "Au Medium")
[-] Mechanism for selecting a blender object managed by a particular node.
[ ] Mechanism for ex. specially coloring a node that is currently participating in the preview.
[ ] Custom callbacks when deleting a node (in `free()`), to ex. delete all previews with the viewer node.
## Socket Base Class
[ ] A feature `use_array` which allows a socket to declare that it can be both a single value and array-like (possibly constrained to a given shape). This should also allow the SocketDef to request that the input socket be initialised as a multi-input socket, once Blender updates to support those.
- [ ] Implement a shape-selector, with a dropdown for dimensionality and an appropriate `IntegerVectorProperty` for each kind of shape (supporting also straight-up inf), which is declared to the node that supports array-likeness so it can decide how exactly to expose properties in the array-like context of things.
[ ] Make `to_socket`s no-consent to new links from `from_socket`s of differing type (we'll see if this controls the typing story enough for now, and how much we'll need capabilities in the long run)
- [?] Alternatively, reject non matching link types, and red-mark non matching capabilities?
## Many Nodes
[ ] Implement LazyValue stuff, including LazyParamValue on a new class of constant-like input nodes that really just emit ex. sympy variables.
[?] Require a Unit System for nodes that construct Tidy3D objects
[ ] Medium Features
- [ ] Accept spatial field. Else, spatial uniformity.
- [ ] Accept non-linearity. Else, linear.
- [ ] Accept space-time modulation. Else, static.
[ ] Modal Features
- [ ] ModeSpec, for use by ModeSource, ModeMonitor, ModeSolverMonitor. Data includes ModeSolverData, ModeData, ScalarModeFieldDataArray, ModeAmpsDataArray, ModeIndexDataArray, ModeSolver.
## Development Tooling
[ ] Implement `rye` support
[ ] Setup neovim to be an ideal editor
## Version Churn
[ ] Implement real StrEnum sockets, since they appear in py3.11
[ ] Think about implementing new panels where appropriate (<https://developer.blender.org/docs/release_notes/4.1/python_api/>)
[ ] Think about using the new bl4.1 file handler API to enable drag and drop creation of appropriate nodes (for importing files without hassle).
[ ] Keep an eye on our manual `__annotations__` hacking; python 3.13 is apparently fucking with it.
[ ] Plan for multi-input sockets <https://projects.blender.org/blender/blender/commit/14106150797a6ce35e006ffde18e78ea7ae67598> (for now, just use the "Combine" node and have seperate socket types for both).
[ ] Keep an eye out for volume geonodes in 4.2 (July 16, 2024), which will better allow for more complicated volume processing (we might still want/need the jax based stuff after, but let's keep it minimal just in case)
## Packaging
[ ] Allow specifying custom dir for keeping pip dependencies, so we can unify prod and dev (currently we hard-code a dev dependency path).
[ ] Refactor top-level `__init__.py` to check dependencies first. If not everything is available, it should only register a minimal addon; specifically, a message telling the user that the addon requires additional dependencies (list which), and the button to install them. When the installation is done, re-check deps and register the rest of the addon.
[ ] Use a Modal and multiline-text-like construction to print `pip install` as we install dependencies, so that the user has an idea that something is happening.
[ ] Test on Windows
## Node Tree Cache Semantics
# TIDY3D BUGS
- Directly running `SimulationTask.get()` is bugged - it doesn't return some fields, including `created_at`. Listing tasks by folder is not broken.