Spectral Dynamics Lab presents two synchronized views of the same GPU-resident state. The physical view renders the height field as an illuminated surface, while the Fourier view magnifies the low-frequency spectrum that drives the visible motion.
The initial disturbance is transformed once with GPUFFT2D. Every frame then evolves each complex
Fourier coefficient analytically according to the wave equation, renders the spectrum directly,
and performs a two-dimensional inverse FFT to reconstruct the physical field. Both views consume
the resulting storage buffers without reading the full simulation back to JavaScript.
The shared luma.gl panel explains the relationship between the views and exposes the simulation's grid, transform, and dispatch statistics. Its sections can be expanded independently, and the website InfoBox can be collapsed or resized without covering the visualization.