Open motion_field.pde in Processing 4.5.6 and press Run. Keep the full repository together so the sketch can load the shared files from ../p5f_sample/data/. No additional Processing library is required. For export, copy those three BVH files into this folder's data/ directory first.

Six joints from each of the three recordings become an array of eighteen vec3 uniforms: X, Y, and dancer number. One fullscreen rectangle runs data/field.frag; its pixels sum joint influence, draw logarithmic isocontours, and mix a small interference term. Screen derivatives keep contour edges smooth at different resolutions. The third uniform component chooses the restrained cyan/coral/ivory palette.

• motion_field.pde: BVH-to-uniform conversion, shader pass, controls.
• data/field.frag: field, contour spacing, antialiasing, and palette.
• MotionData.pde: legacy BVH adapter; recenters root X/Z for the side-by-side layout.
• SketchRun.pde: shader validation, deterministic capture, and smoke test.

Space pauses; + / - change contour density; J reveals the driving joints; R resets; H toggles labels; S saves a screenshot. Window resizing preserves the shape proportions. Change the six entries in jointNames to try different body landmarks, or change the influence and wave expressions to explore another field.

See the root README for deterministic CLI captures. Only the new sketch/shader code is covered by LICENSE-new-examples; the original BVH data and parser JAR retain their existing copyright status.