-3/-2好
2 其它參數(shù)（學(xué)習(xí)VR上www.fzitv.net）
Hsph subdivs: 計算gi時的采樣值，與定義值為15，加大它肯定會增加渲染時間，但增加的不多，
Hspr細(xì)分值 默認(rèn)為15,到25~30為佳，再大也會像b razil一樣了…………
注意此值表現(xiàn)材質(zhì)及貼圖的細(xì)膩程度,
光滑程度
Clr thershold Normr thershold
根據(jù) vray原作者的回答:
that's it. Lowering these parameters will
make irradiance map calculations longer, but will capture GI detail
better
Personally I don't ajust these settings, But I guess if they
are set to high, you start loosing detajl, and if to low, it needs more
subdivs (time) to render smooth?.
There is something about the detail which is lost (small objetcs such as
the horizontal
elements on the wall seem a bit flat. I've read that by reducing the
Normal thresh that can
become better
Interp. Samples: 40
（此值為光照貼圖加入原渲染結(jié)果的精度，可設(shè)大一點，不太影響渲染時間）
此值太大 ,softing in surfaces, 一般 40即可
Secondary bounces: subd: 1, depth: 3
（注意：為達到良好的gi效果，最好不要關(guān)掉第二級反彈，節(jié)約時間的關(guān)鍵在于
max min
的值及光照貼圖的幅數(shù)）也不要輕易的動原設(shè)定值。)depth大一點,這樣,
渲染的細(xì)節(jié)就會多一點
As for sec. bounce subdivision parameter, I think it controls the
sampling of the secondary bounces, that is the higher this number is the
less noisy the image.
Depth 控制光線反射 ,反彈的次數(shù), 一般場景不超過 5
假如是玻璃, 應(yīng)該大一點.

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