請問冰同玻璃點整架？

[coca cola]

我根據大家的意見, 做?一d改進, 但都系覺得做得好唔似, 玻璃樽仲系好無重量好輕身, d水仲系好唔似水 , 請問各位高手有無高見可以幫到我ar?

另外, 我仲有幾個問題關於raytrace ga~
1. 請問個refractive index 系唔系一定要等於 or 大過1 ga? 可唔可以細過1? (我試過set做細過1, 效果超奇怪~ 會好似鏡面多過似玻璃~)

2. 請問玻璃同水除?refractive index唔同之外, setting仲會有咩唔同?

3. 請問render 玻璃同水呢d要用raytrace的野系唔系一定要用好似mentalray 呢d render engine先會render得靚?

唔該矖ar~~~ ^.^

[stantang]

A1: Refraction index 可以參考這裡:
http://www.is.kiruna.se/~cjo/d2i/REFRACTION.INDEX3.html

A2: 很多時候是它們color或形態上面的不同，但最重要是refraction setting，reflection上highlight, fresnel effects setting(可以用facing ratio attribute)，還有caustic setting。

A3: Mental ray在raytrace方面的確比Maya default render 好，特別在caustic方面

[coca cola]

其實我唔系好明白stantang所指的"caustic setting"系咩ar?~ 可唔可以解一解ar?

唔該矖ar~~~

[stantang]

coca cola,

Causic is 聚焦現象, you can find out more about caustic at here: http://www.3drender.com/light/caustics.html
here is Maya caustic (MR) tutorial in chinese:
http://www.xdu.cn/XDUMAIN/res/CG/200503/773.html
Oh, Maya default renderer doesn't render caustic....

[h2o]

依家得 key light 做光源, bg 暗左d. 可以加d fill lights, 令到個玻璃起番d highlight, 勾番個輪廓, 咁就唔會"癡地"喇