- Weather Sandbox timelapse viewing works best with a prepared scene and controlled simulation speed.
- Vertical resolution 300 is a strong starting point for realistic atmospheric behavior.
- Space pauses or resumes the simulation while End enables automatic iteration control.
- Display modes reveal clouds, humidity, air quality, velocity vectors, droplets, and weather stations.
- Fullscreen capture keeps the simulation area clear and makes long-form recordings easier to review.
Weather Sandbox timelapse Setup Basics
A good Weather Sandbox timelapse begins with a stable simulation rather than immediate recording. The 2D Weather Sandbox lets you choose a real-world sounding as forcing, load a save file, move around the simulation area, and inspect atmospheric behavior through several display modes.
Before capturing a sequence, decide whether you want a broad weather-development view or a close study of clouds, droplets, wind flow, or humidity. A wide scene is useful for following large cells, while a zoomed view makes small changes easier to notice.
The simulator is highly dependent on graphics performance. A dedicated GPU can provide a smoother real-time experience, and the project recommends a GTX 1070 or better for realtime gameplay. Laptop users should verify that the browser is using the dedicated GPU instead of integrated graphics.
Broad Weather View
- Use a larger horizontal resolution
- Keep the full simulation area visible
- Track converging winds and longer-lasting cells
Cloud Study
- Use the cloud-density display
- Zoom toward active formations
- Pause frequently to compare stages
Aircraft Observation
- Enable Flight Simulator Mode
- Follow the plane when needed
- Use water drops to interact with fires
| Setup Element | Recommended Starting Point | Timelapse Benefit |
|---|---|---|
| Vertical resolution | 300 | Supports more realistic results |
| Horizontal resolution | Larger values when performance allows | Encourages stronger converging winds |
| Graphics hardware | Dedicated GPU preferred | Helps maintain smoother realtime playback |
| Browser display | Fullscreen with F11 | Reduces visual distractions |
| Starting scene | Preset or save file | Makes repeated captures easier |
Start with a saved or preset scene before recording. This gives every test the same atmospheric conditions and makes comparisons more useful.
Choose Resolution and Simulation Speed
Resolution and iteration speed determine how quickly a weather pattern develops on screen. Higher horizontal resolution can produce stronger converging winds, but it may also increase the workload on the GPU. For a timelapse, the best setting is the highest stable configuration that keeps the display responsive.
The simulator provides dedicated controls for iteration speed. Use End for automatic iterations per second, Page Up to increase the rate, and Page Down to decrease it. Use Space whenever you need to freeze the current frame and inspect a formation.
A practical workflow uses three speed phases:
- Formation phase: watch the scene at a manageable speed while clouds and wind structures begin to develop.
- Acceleration phase: increase iterations per second after the main pattern is stable.
- Inspection phase: pause or slow the simulation when a cell, droplet path, or fire interaction becomes important.
Prepare the Scene
Select a real-world sounding preset or load a save file. Center the view with V, then choose a zoom level that keeps the area of interest visible.
Set a Stable Resolution
Begin around vertical resolution 300. Increase horizontal resolution only when the browser remains responsive and the resulting wind behavior is useful for your recording.
Start at a Moderate Rate
Press Space to resume, then observe the first stage without excessive acceleration. This preserves the early development that viewers often need for context.
Accelerate the Middle Section
Use End for automatic iterations per second or press Page Up to increase the rate. Adjust gradually so major formations remain readable.
Pause Key Moments
Press Space when a cloud structure, velocity pattern, or interaction deserves a closer look. Resume when the scene is ready to continue.
| Control | Function | Best Timelapse Use |
|---|---|---|
| Space | Pause or resume | Freeze important atmospheric stages |
| End | Automatic iterations per second | Maintain continuous accelerated motion |
| Page Up | Increase iteration speed | Shorten quiet development periods |
| Page Down | Decrease iteration speed | Preserve detail during rapid change |
| V | Reset view | Recover a consistent framing |
| F11 | Fullscreen mode | Improve capture clarity |
Do not raise resolution and iteration speed at the same time without checking responsiveness. A shorter, stable sequence is usually easier to follow than a faster recording with dropped visual updates.
Display Modes for Better Timelapse Analysis
A visually attractive recording becomes more informative when the right display mode is selected. The simulator includes numbered display modes along with dedicated overlays for air quality, relative humidity, cloud density, velocity vectors, droplets, weather stations, and sounding data.
Use the cloud and humidity displays when your goal is atmospheric development. The velocity-vector overlay is better for explaining convergence and circulation. Droplet visibility helps when following precipitation-like particles or water released from the aircraft.
| Display or Key | Information Shown | Recommended Focus |
|---|---|---|
| 1–9 | Numbered display modes | Compare visual interpretations of the same scene |
| K | Air quality display | Examine air-quality changes across the simulation |
| C | Relative humidity and cloud density | Follow moisture and cloud development |
| Tab | Velocity vectors | Study wind direction and convergence |
| D | Droplets | Track visible particle movement |
| G | Sounding graph | Review the selected atmospheric forcing |
| N | Weather stations | Locate or inspect station markers |
| M | Add or remove stations | Customize observation points |
A strong analysis sequence can switch displays between segments instead of changing modes constantly. For example, begin with a standard view, move to C during cloud formation, use Tab for wind structure, and finish with D if droplets become central to the scene.
Clouds
Use C to emphasize relative humidity and cloud density during formation.
Wind
Use Tab to reveal velocity vectors and converging air movement.
Droplets
Use D to make visible particle behavior easier to follow.
Sounding
Use G to inspect the forcing profile behind the simulation.
Record the same segment twice when possible: once with the cleanest visual mode and once with an informative overlay. The pair can show both the spectacle and the underlying weather behavior.
Capture Workflow for a Clean Sequence
The simulator documentation focuses on interaction and simulation controls rather than a dedicated built-in timelapse recorder. For that reason, the most dependable approach is to prepare the scene in the browser and use a standard screen-recording tool outside the simulation.
Keep the capture area consistent from beginning to end. Avoid unnecessary panning, zooming, or tool changes unless they are part of the intended presentation. If the recording is meant for analysis, include a short opening period with the initial conditions visible before accelerating the middle section.
Before Recording:
- Select a preset or load a prepared save file
- Set vertical resolution near 300 and confirm stable performance
- Choose fullscreen mode with F11
- Select the display mode that matches the recording goal
- Confirm the view, zoom level, and simulation controls
| Recording Stage | Recommended Action | Why It Helps |
|---|---|---|
| Opening | Show the initial scene briefly | Establishes the starting conditions |
| Early development | Use moderate speed | Preserves formation details |
| Main evolution | Increase iterations gradually | Compresses uneventful periods |
| Key event | Pause or slow down | Makes the important change readable |
| Closing | Return to a clear view | Gives the sequence a clean ending |
Use the middle mouse button to drag the simulation area and the mouse wheel to zoom. If you need to adjust brush size, hold B while scrolling. Avoid accidental edits by pressing Esc to select no tool before capturing a passive observation sequence.
For interactive recordings, the simulator also supports aircraft controls. A enables Flight Simulator Mode, F toggles camera following, Shift toggles landing gear, Z drops water from the aircraft to extinguish fires, and Caps Lock activates autopilot. These features work best as focused segments rather than constant distractions.
Keep one uninterrupted master recording, then create shorter clips from it. This preserves the full weather progression while allowing separate cloud, wind, droplet, or aircraft-focused edits.
Timelapse Themes and Viewing Goals
A Weather Sandbox timelapse can serve several different purposes. Choosing the goal first helps determine the best resolution, display mode, camera position, and playback speed.
For a cinematic sequence, prioritize a stable frame and visually distinct cloud structures. For an educational sequence, show the initial sounding, velocity vectors, and humidity changes. For an aircraft-focused sequence, use camera following and keep the plane visible without losing the surrounding weather system.
| Timelapse Goal | Primary Controls | Suggested Presentation |
|---|---|---|
| Cloud formation | C, Space, Page Up | Slow opening, accelerated development, paused highlights |
| Wind convergence | Tab, zoom, larger horizontal resolution | Wide framing with visible velocity vectors |
| Droplet movement | D, zoom, Space | Close view with pauses at path changes |
| Aircraft interaction | A, F, Z, Caps Lock | Follow the aircraft during a focused event |
| Weather comparison | Presets, save files, V | Repeatable framing and consistent settings |
For long-running scenes, weather stations can provide useful reference points. Press N to show stations and M to add or remove them. The view can also be repositioned with the arrow keys, while Right Ctrl enables slower pan speed for more controlled movement.
A useful final sequence often combines three layers:
- Context: a broad view that shows the overall system.
- Mechanics: an overlay that explains humidity, clouds, or wind.
- Detail: a paused close-up of droplets, a cell, or an aircraft interaction.
Do not accelerate every part equally. Let the opening establish context, compress stable periods, and slow down whenever the weather pattern changes in a way viewers should understand.
Troubleshooting and FAQ
Common problems are usually related to performance, framing, or display selection. If the scene feels slow, lower the workload before changing the recording plan. If the weather pattern is difficult to interpret, switch overlays instead of repeatedly zooming into the same area.
| Problem | Likely Cause | Practical Adjustment |
|---|---|---|
| Choppy realtime view | GPU workload is too high | Lower resolution or iteration speed |
| Weak wind structures | Horizontal resolution is limited | Increase horizontal resolution when stable |
| Important area leaves the frame | View moved during simulation | Reset with V and use slower panning |
| Clouds are hard to read | Display mode lacks context | Try C or another numbered mode |
| Recording feels rushed | Iteration speed is too high | Use Page Down or pause with Space |
Q: Does Weather Sandbox have a dedicated timelapse button?
The in-game controls provide pause, resume, and iteration-speed adjustments rather than a dedicated timelapse recorder. Prepare the scene in the browser and use a standard screen-recording workflow for capture.
Q: What resolution should I use for a Weather Sandbox timelapse?
Vertical resolution 300 is recommended as a starting point for realistic results. Larger horizontal resolutions can support stronger converging winds, but performance should remain stable.
Q: How do I speed up a slow section?
Use End for automatic iterations per second or press Page Up to increase the rate. Press Page Down when the scene becomes too fast to interpret.
Q: Which display mode is best for cloud development?
Press C to show relative humidity and cloud density. Pair it with the standard view or velocity vectors when you want both visual context and atmospheric explanation.
For the official simulator interface, presets, controls, and performance guidance, visit the 2D Weather Sandbox project page.
Review the complete recording before publishing. Confirm that the starting scene, speed changes, display modes, and important pauses are understandable without relying on hidden controls.