How to extract Foreground from Green Screen without having Edge issue in Nuke...

1. These are my notes about how to extract Foreground  from Green Screen without having Edge issue. 2. To key out the  Green Screen using Keylight. The Keylight seems to be more powerful and you can come up with some really good results. Then the image looks like this: 3. Add Background Because of how we multiplied the black background in the process we did earlier it left black edges on her arm. So let’s take of this problem. 4. To make an Edge Matte for Mixing the background to the Edge of the Girl.   Blur Node – size 100 Merge -Xor Grade – Multiply 4 The resulting Image of the final Alpha Channel: 5. Added Background Image to the FG using the mask we just created. Add IN with the FG and another IN for BG The resulting Image 6. Final The Edge of the girl is mixed with the background          ...

How to Create a Matte from GreenScreen in Nuke...

1. This note is how to create a matte from a Green Screen shot. You would do this if there was no alpha channel provided for the foreground   2. Get green channel and red channel from the the GreenScreen 3. Get Merge Node, using Minus to subtract from Green to Red   4. Add Grade Node and lower your whitepoint for the background. In this case it worked with the value 0.055   5. Add Invert and Clamp 6. Final...

Reflection & Highlight Flares in Nuke...

These are my notes from my nuke class with Damian Allen. Basic of Reflection & Highlight Flares 1. Passes – Robot (Chars), FG, BG, Shadow, Matt ( Vignette) 2. Bg Shadow using Grade node. 3. Reflection Flip Transform: Translate Y – put the right position this case I put “17” Scale h -> -1 Center Changing the pivot. Hold down ctrl+alt and now you can move the pivot in the 3d viewer. 4. Add HighLight Flares on Robot’s surface. Using a Keyer: mainly used for luminance-based keying or luma keying. 5. Add Vignette 6. Final Image Damian Allen’s book to read: Buy on...