V-Ray Render Option的一點建議

My

在這個帖子裏貼過,#9
http://bbs.rhino3d.asia/thread-3258-1-1.html

剛看了一下筆記,沒想到以前還譯的七七八八的,再整理一下,隨便發上來,
有需要的可以看一下.:down

I've been asked many times what are "good" V-Ray settings. Of course, there is no universal answer and it depends on the desired render speed and quality, but here is a set of settings that I have found to work very well for still images in many situations. Please note that these settings are not optimal, in the sense that with enough tweaking, you can probably get similar quality with faster render times. The beauty of these settings though, is that they require almost no tweaking and you are guaranteed to get a nice result in the end. 我曾多次地問過怎樣的設置才是好的設置,然而,這沒有一個標準的答案,而是取決於你所要求的渲染時間與質量(來設置參數).但還是有一些設置對大多數的情況都很合適的.但這些設置並不是最優的,最優的設置只能通過不斷地調整才能得到.通過調整,你可能得到很好的圖像品質並且渲染速度也足夠地快.以下的設置雖然易懂,但它幾乎不用太多的調整就能得到很好的圖像品質.(倒數第二句怪怪的) Provided that you start with a default V-Ray render 在默認設置中作稍微調整 In the Image sampler rollout, switch to "Adaptive QMC". 在圖像采樣卷展欄下,開啟"Adaptive QMC". Set the "Max. subdivs" to 100 (one hundred). Leave the "Min. subdivs" to 1. 將"Max. subdivs"設為100, Min. subdivs值為1不變 Set the primary GI engine to QMC GI. Do not change the subdivs. 將初次引擎設為QMC ,不要更改它的細分值 Set the secondary GI engine to Light cache. 二次引擎設為Light cache. Set the light cache interpolation samples to 5. 將Light cache的插值采樣設為5 Set the QMC Sampler "Adaptive amount" to 1.0. 將QMC采樣卷展欄下的Adaptive amount設為1 Un-check the "Clamp output" option in the Color mapping rollout. 在色彩貼圖卷展欄下不勾選Clamp output選項 Typically you will need to adjust the Noise threshold as the default produces too much noise. A good value is 0.001. 通常情況下,你可能需要調整Noise threshold,因為默認值會産生很多的躁點,比較好的Noise threshold是0.001 To control render quality vs render time: 出圖品質與渲染時間的對決 Adjust the QMC Noise threshold. Lower values reduce noise, but increase render times. 調整QMC Noise threshold,值越小躁點就越少,但會延長渲染時間 Adjust the light cache subdivs. This is scene dependent, but usually values from 1000 to 5000 are enough for most scenes. You can also adjust other light cache parameters as necessary. 調整light cache卷展欄下的細分值,這個值要取決於場景的需要,但通常在1000到5000之間已經可以滿足大部分地場景需要了.如果有必要,你也可以調整其他的light cache參數. Turn on or off reflective/refractive GI caustics as needed. 根據需要可以開啟或關閉GI的反射/折射焦散 Optionally turn on the "Use light cache for glossy rays" option to speed up glossy reflections. 可以打開"Use light cache for glossy rays選項來加速模糊反射的渲染 You may want to adjust the render region (bucket) size for faster feed-back. Notes: Leave all subdivs anywhere at their default values. They won't have any effect anyways - the 100 AA subdivs will almost certainly override everything else. 不管在任何地方,最好保留默認的細分值設置 For builds of V-Ray before 1.49.30, DO NOT use color mapping other than Linear. Otherwise, you risk to get an incorrect result in the end. If necessary, apply color correction in post. You can change the dark/bright multipliers, provided that you leave both at the same value. 這個不用理,應該修正了這個錯誤的. Avoid using sharpening AA filters. They can make the noise more apparent. 避免使用銳化的抗鋸齒過濾器,它能使躁波更明顯 Advantages of these settings: 優點: Very little parameters for controlling render quality. 使用很少參數來控制渲染質量 Work for a very large number of scenes. 適合很多的場景渲染 Typically produce high-quality results. 通常情況下能得到高品質的圖像 Disadvantages of these settings: 缺點 May be slow to render. With tweaking, you may get faster results. 可能會使渲染變慢,通過調整,可以改善並得到不錯的結果 How it works: The high AA subdivs essentially causes all the sampling to be performed by the image sampler. It will take as many samples per pixel as required to achieve the specified noise threshold. In many ways, this is similar to PPT, but is done on a per-bucket basis and the number of samples is adaptive. 以上為意譯,僅供參考! 如有錯誤,歡迎指出!謝謝!

I've been asked many times what are "good" V-Ray settings. Of course, there is no universal answer and it depends on the desired render speed and quality, but here is a set of settings that I have found to work very well for still images in many situations. Please note that these settings are not optimal, in the sense that with enough tweaking, you can probably get similar quality with faster render times. The beauty of these settings though, is that they require almost no tweaking and you are guaranteed to get a nice result in the end.
我曾多次地問過怎樣的設置才是好的設置,然而,這沒有一個標準的答案,而是取決於你所要求的渲染時間與質量(來設置參數).但還是有一些設置對大多數的情況都很合適的.但這些設置並不是最優的,最優的設置只能通過不斷地調整才能得到.通過調整,你可能得到很好的圖像品質並且渲染速度也足夠地快.以下的設置雖然易懂,但它幾乎不用太多的調整就能得到很好的圖像品質.(倒數第二句怪怪的)

Provided that you start with a default V-Ray render
在默認設置中作稍微調整
In the Image sampler rollout, switch to "Adaptive QMC".
在圖像采樣卷展欄下,開啟"Adaptive QMC".

Set the "Max. subdivs" to 100 (one hundred). Leave the "Min. subdivs" to 1.
將"Max. subdivs"設為100, Min. subdivs值為1不變

Set the primary GI engine to QMC GI. Do not change the subdivs.
將初次引擎設為QMC ,不要更改它的細分值

Set the secondary GI engine to Light cache.
二次引擎設為Light cache.

Set the light cache interpolation samples to 5.
將Light cache的插值采樣設為5

Set the QMC Sampler "Adaptive amount" to 1.0.
將QMC采樣卷展欄下的Adaptive amount設為1

Un-check the "Clamp output" option in the Color mapping rollout.
在色彩貼圖卷展欄下不勾選Clamp output選項

Typically you will need to adjust the Noise threshold as the default produces too much noise. A good value is 0.001.
通常情況下,你可能需要調整Noise threshold,因為默認值會産生很多的躁點,比較好的Noise threshold是0.001

To control render quality vs render time:
出圖品質與渲染時間的對決
Adjust the QMC Noise threshold. Lower values reduce noise, but increase render times.
調整QMC Noise threshold,值越小躁點就越少,但會延長渲染時間
Adjust the light cache subdivs. This is scene dependent, but usually values from 1000 to 5000 are enough for most scenes. You can also adjust other light cache parameters as necessary.
調整light cache卷展欄下的細分值,這個值要取決於場景的需要,但通常在1000到5000之間已經可以滿足大部分地場景需要了.如果有必要,你也可以調整其他的light cache參數.

Turn on or off reflective/refractive GI caustics as needed.
根據需要可以開啟或關閉GI的反射/折射焦散

Optionally turn on the "Use light cache for glossy rays" option to speed up glossy reflections.
可以打開"Use light cache for glossy rays選項來加速模糊反射的渲染

You may want to adjust the render region (bucket) size for faster feed-back.


Notes:
Leave all subdivs anywhere at their default values. They won't have any effect anyways - the 100 AA subdivs will almost certainly override everything else.
不管在任何地方,最好保留默認的細分值設置

For builds of V-Ray before 1.49.30, DO NOT use color mapping other than Linear. Otherwise, you risk to get an incorrect result in the end. If necessary, apply color correction in post. You can change the dark/bright multipliers, provided that you leave both at the same value.
這個不用理,應該修正了這個錯誤的.

Avoid using sharpening AA filters. They can make the noise more apparent.
避免使用銳化的抗鋸齒過濾器,它能使躁波更明顯

Advantages of these settings:
優點:
Very little parameters for controlling render quality.
使用很少參數來控制渲染質量
Work for a very large number of scenes.
適合很多的場景渲染
Typically produce high-quality results.
通常情況下能得到高品質的圖像

Disadvantages of these settings:
缺點
May be slow to render. With tweaking, you may get faster results.
可能會使渲染變慢,通過調整,可以改善並得到不錯的結果

How it works:
The high AA subdivs essentially causes all the sampling to be performed by the image sampler. It will take as many samples per pixel as required to achieve the specified noise threshold. In many ways, this is similar to PPT, but is done on a per-bucket basis and the number of samples is adaptive.




以上為意譯,僅供參考!
如有錯誤,歡迎指出!謝謝!

沙发~~~哈哈

:soso 先收着，下班了再看。

很好的东东,收下了.

哈哈!!!终于看到了

学习学习~~

看得有点点晕.

得顶啊!!

真的不错啊