# Visual BOM Brief — Bass Surface Drum One-paragraph brief for the visual-BOM render and final capstone shot list. ## Render brief (one paragraph) A studio-photo composition of the bass-surface-drum laid out **exploded vertically**, with the frame (matte black painted CRS cylinder, 800 mm OD × 120 mm deep, with visible rolled-in stiffening bead at the bottom and outward-curled bearing flange at the top) centered in frame. Above it: the raw natural-hide head blank (warm tan, ~920 mm finished diameter) floating ~80 mm above the bearing flange. Above the head: the clamp ring (matte black painted CRS, OD 870 mm / ID 770 mm, with 6 visible bolt holes) floating ~80 mm above the head. Six M10 bolts with washers and locknuts arranged in star pattern off to the right of the stack, each lying flat to show length and head profile. One soft cinematic mallet (felt head, dark wood handle) leaning against the lower-right corner of the composition. Lighting: warm Heifer-Zephyr-palette key light from upper-left (cedar/gold), cool fill from upper-right (lapis), shadow falling to lower-right onto a cream-paper backdrop. Camera angle: 3/4 isometric from upper-right. Negative space at bottom for caption "Bass Surface Drum · CERN-OHL-W 2.0 (hardware) · CC BY 4.0 (docs)". ## Required shots (matches `photo-shotlist.md`) 1. Exploded vertical hero (above) 2. Plan view (top-down) of frame alone showing tab/slot seam location and lug bracket spacing 3. Detail crop of bearing flange + clamp ring + head sandwich 4. Detail crop of stiffening bead at bottom edge 5. Detail crop of TIG seam + internal doubler (cut-away or mirror reflection from inside) 6. Player-scale shot: drum on stand or floor with mallet poised — establishes the *very large* read ## Style anchors (Heifer Zephyr design system) - Walnut `#3D2817` and cream `#F8F4E9` dominate the backdrop - Cedar `#B98B47` highlights warm-side metal - Lapis `#1E3A8A` cools shadows - Gold `#D4A017` accents on rolled edges - Fraunces serif for any in-frame typography; Inter for callout pills