/**
 * Pinhole per-splat tile-coverage count.
 *
 * Reads:   screenX, screenY, radius, tsz, gox, goy,
 *          uniforms.groupTilesX, uniforms.groupTilesY
 * Defines: writes coverage[i]
 *
 * Computes the splat's clamped tile bbox and stores the area
 * (`(maxTX - minTX + 1) · (maxTY - minTY + 1)`, capped at
 * MAX_COVERAGE_PER_SPLAT) into `coverage[i]`. The emit-pairs shader
 * later walks the same clamped bbox via its own pinhole tile-walk
 * chunk.
 *
 * Embeds the per-render MAX_COVERAGE_PER_SPLAT cap via JS-template
 * substitution because the value is fixed at shader-construction time
 * (it tracks the group's tile area).
 *
 * @param maxCoveragePerSplat - Hard upper bound on per-splat tile count.
 * @returns WGSL source for the pinhole tile-coverage block.
 */
declare const tileAabbPinhole: (maxCoveragePerSplat: number) => string;
export { tileAabbPinhole };