SDF Ink Sketch Renderer

2x2 grid, do this for 4 famous scientists, 16:9 // 2D SDF for the subject's silhouette, but with intentional noise to create rough overlapping contours. float sdf_subject = sdBlobbyShape( pose_params($ SUBJECT) ); // Multiple offset layers: // - outer contour: where abs(sdf) < 0.01 + noise*0.005 → thick ink (charcoal) // - inner folds: where curvature of sdf is high → thin ink (grey) // - construction guides: faint lines where gradient of sdf > 0.8 (visible strokes) // Flat colour fill: inside sdf < 0 → fill with base colour; shadow patch = intersection of sdf < 0 and a slanted half‑plane. // Secondary studies: smaller SDFs positioned around the canvas, same style. // No background SDF, just white void. // Rendering: trace rays through the 2D SDF field, apply ink texture (rough brush) to contours. Output 2D vector‑like sketch.