Jun 27, 2007

testing Sky Light - Cheetah3D

設定にこつがありそうなので、設定やパラメータを変えてテストしてみた。

レンダリングは全て G4 Dual です。


とりあえず Sky Light のみ、geometry On で、

  • sample 1 / geometry On - 13.06 secs

  • sample 2 / geometry On - 97.09 secs

  • sample 4 / geometry On - 169.82 secs

  • sample 8 / geometry On - 231.90 secs

  • sample 16 / geometry On - 198.82 secs

  • sample 32 / geometry On - 190.79 secs

  • sample 64 / geometry On - 269.61 secs


次に Ambient Occlusion を追加、

  • sample 1 / geometry On / AO- 41.40 secs

  • sample 2 / geometry On / AO - 218.10 secs

  • sample 4 / geometry On / AO - 244.88 secs

  • sample 8 / geometry On / AO - 205.78 secs

  • sample 16 / geometry On / AO - 149.77 secs

  • sample 32 / geometry On / AO - 178.12 secs

  • sample 64 / geometry On / AO - 277.32 secs


Radiosity で、

  • sample 1 / geometry On / radiosity - 58.88 secs

  • sample 2 / geometry On / radiosity - 224.61 secs

  • sample 4 / geometry On / radiosity - 233.56 secs

  • sample 8 / geometry On / radiosity - 191.94 secs

  • sample 16 / geometry On / radiosity - 151.67 secs

  • sample 32 / geometry On / radiosity - 171.16 secs

  • sample 64 / geometry On / radiosity - 295.01 secs


geometry Off

  • sample 1 / geometry Off - 12.35 secs

  • sample 32 / geometry Off - 188.77 secs

geometry Off で AO

  • sample 1 / geometry Off / AO - 32.33 secs

  • sample 32 / geometry Off / AO - 143.71 secs

geometry Off で raidosity

  • sample 1 / geometry Off / AO - 43.68 secs

  • sample 32 / geometry Off / AO - 213.50 secs


Sky Light - まとめ

  • sample 数を上げれば、比例してレンダリング時間がかかるわけではない。
  • sample 数 2 - 8 は使えない、ノイズが出る・レンダリングに時間がかかる。

どうも Sky Light の shadow sample 1 っていうのは、特別な設定が適応されてるっぽいですね。sample 1 の場合と、それ以上では明るさが違うので、注意が必要です。

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