3D Falling Leaves Make individual leaves turn through face, edge, and back while drifting through the scene. The visible edge-on moment is essential to the effect. Build one convincing leaf Use a two-sided quad or lightly bent mesh with a recognizable leaf silhouette, stem, and restrained vein detail. Camera-facing point sprites cannot turn edge-on. Begin with one slow leaf before increasing the count. Give the back a slightly paler, less saturated appearance and orient its lighting normal correctly. For a custom shader, can distinguish front/back; do not flip normals twice if the engine's ma…