A New Way to Remove Moire

A New Way to Remove Moire from John Wheeler on Vimeo.

digital concept art resource

digital concept art resource http://theroundtablet.com/ http://www.artbyfeng.com/

Spaceman ICC

Sony PMW-F3 test shoot

compulsion - teaser from Jason Wingrove on Vimeo.

And here is another one:

Sony PMW F3 Camera Test from Stargate Studios on Vimeo.

超越單眼錄影-Sony推出PMW-F3交換鏡頭攝影機

Color Curves Quick Reference Guide

Thanks John Dickinson's Color Curves Quick Reference Guide....

One thing you need to keep in mind...color combine RGB...
Red(1,0,0) <> Cyan(0,1,1)
Green(0,1,0) <> Magenta(1,0,1)
Blue(0,0,1) <> Yellow(1,1,0)

So when your eyes tell you the image looks so yellow, or Magenta... you will know how to fix them base on RGB channel...

測試你的眼睛對色彩Hue的敏銳度....XD/ Online Color Challenge

Thanks co-worker Ahom's cool info>>
測試你的眼睛對色彩Hue的敏銳度, 點此網站後選取你的國家, 例如Taiwan, 然後用滑鼠遊標依照測試最左至最右色彩色相排列出你認為ok的漸變順序, wow....超緊張的....如果沒過, 豈不是沒有資格當合成師....最後我拿了零分.......XD好險.....!!!

What the hack is light diffusion??

diffusion : 【物】漫射;擴散
When light is reflected from a mirror, the angle of reflection equals the angle of incidence. When light is reflected from a piece of plain white paper; however, the reflected beam is scattered, or diffused. Because the surface of the paper is not smooth, the reflected light is broken up into many light beams that are reflected in all directions.

當光線從鏡子表面反射時, 光線反射角度是等於光線入射角度. 當光線是反射來自一張白紙時, 反射光束是以散亂不規則方向(漫射/擴散)反射, 原因是白紙表面並不光滑平整表面, 所以反射光束以各種角度進行反射(參考右圖). 簡單的國中物理...XD

Reference link 01

Reference link 02

Shake中的EdgeDetect可以使CG render pass 模擬部份光線打在CG surface的 light diffusion效果, 並減少CG render的過度銳利情形.

補充: 在After Effects裡的Find Edge plugin 也具備類似功能.

同時回應Drake:

原CG render


EdgeDetect 結果


在EdgeDetect中啟動 rgbEdge 與 addEdgeToImage 功能啟動.
以合成手段去模擬自然界光線落在物體上的光線漫射效果, 特別是在物體邊緣亮度有亮面暗面相差大的區域. 由於CG render透過EdgeDetect的模擬light diffusion幫忙把CG render的過度銳利情形中和許多.
個人淺見並歡迎提出不同看法與或其他更好解決辦法...thanks

What the hell of Color value and Color luminance??

最近老是思考些平常已經習慣很久的東西
Color value: 簡單說就是明暗度, value的數值(0~1)是根據RGB三數值中最高的數值就是value, 例如:R>1.15, G>0.8231, B>1.1025的color value就是1.15
Color luminance: 簡單說就是把色彩轉成灰度Grayscale,它的數學運算式為
Y = 0.3*R + 0.59*G + 0.11*B
運算式中的0.3/ 0.59/ 0.11是根據人類眼睛對RGB不同敏感度而來的.