[GAME_GFX] Shading models of Drake at Uncharted4

• Uncharted 4: A Thief's End Full Info Blowout From Dev Panel: "Graphics Tech, Drake's Character Model, Physical Based Shading"
  • http://www.gamepur.com/news/17264-uncharted-4-thiefs-end-full-info-blowout-dev-panel-graphics-tech-drakes.html
• Uncharted 4 Dev Explains How Drake’s Incredible Shaders Were Made; Shows Direct Feed WIP Screenshots
  • http://www.dualshockers.com/2014/12/16/uncharted-4-dev-explains-how-drakes-incredible-shaders-were-made-shows-direct-feed-wip-screenshots/

• アンチャーテッド 4 のキャラのシェーディングモデルについてです.

• Drake
  • Face 顔
    • Using Disney Diffuse model, GGX Brdf model and Screen Space Subsurface.
    • ディズニーディフューズモデル, スペキュラ GGX, スクリーンスペースサブサーフェス
  • Hair 髪
    • Kajiya-kay Brdf model.
    • Kajiya-kay モデル
  • Cloth 布
    • Using Disney Diffuse Model, recreated Brdf model just for the fabric, also added special cheap Sub-surface Scatter.
    • All the fabric details, stitches, small wrinkles, wear and tears were built in shader.
    • ディズニーディフューズモデル, 布用のシェーディングモデル, 処理が軽いサブサーフェススキャッター
    • 布のディティール, ステッチ, 小さいしわ, すりきれ, 裂けはシェーダで対応