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https://www.youtube.com/watch?v=LJ39zm1Ehzo&feature=youtu.be
READ THE TECHINCAL PAPER : CLOUDLIGHTThis weekend i put my hands on the Nuke Development Kit. I remember that i few time ago some friend show me an amazing video from vfxguidetv showing a mate from image engine , that was using a plugin developed around “district 9” to allow point-cloud 3D relighting on nuke.
http://media.fxguide.com/fxguidetv/fxguidetv-ep071.mov
I did a quick research and i found around some techniques using GL_POINTS to create the cloud points, but unable to render on scanline for the same reason.
As far as i can notice, scanline render works as a surface shader, and is unable to handle hardware like attributes like GL_POINTS .
So im not sure about how the guys of image engine did it, but i came with the idea of instancing little 3D pixels, or cubes instead of points.It works very well, but quickly turns a bit hard to handle on non high-end computers. So i did some optimizations, like avoid handling non-alpha pixels, and allowing user to select wich faces of the pixel-cube ( aka:cloudlet ) want to have visible.
With this approach is posible to use standar lights and render through scanline.
For further development i need some of your support.
1. I did the plugin open source ( just remember to mention hassanvfx when you use it ) get in my github and fork on it :
https://github.com/randominteractive/cloudLight
2. I need another images to built an all-in-one cool shader around this :
(images im currently working on comes from http://www.pxfactory.eu/ )
so please ! share me :
A 2K EXR image ( preferable a character ) in:
color pass
point pass
specular pass
diffuse pass
reflection pass
bump pass3. Please some LINUX and UNIX friend wants to compile the source on that platforms.
(or at least go to your Nuke6/Documentation folder and send me the “Makefile*” file in there to try to compile it on my mac )Hi folks !
Yesterday i worked updating the plugin, it some times don’t plot the z chaneel, using the standar point pass, now its working fine.
If someone could share me a multipass frame to keep researching it could be very nice.
As a final update i added a function that allow to take a grayscale image, as a depth map. so you can do relighting using the 3D cloud version as you can see in this example. ( also it could work een better rendering in orthographic mode )
https://www.youtube.com/watch?v=eWULiz9u5lg
By the way, not the main intention, but you could achieve the FX in this video “The Time” from Black Eyed Peas.
https://www.youtube.com/watch?v=kuFSjlnF2kw
Depending on your footage, you could use it in lumma mode as the example above, or if it doen’t work, modelling the characters copying the animation and then rendering point passes and using cloudlight animating the Resolution slider. -> look.
The download link is still the same but with the updated plugins, examples and media.
Tecnical paper cloudLight
OSX VERSION v1.2 + EXAMPLESAny chance of getting a windows version – would love to try this on a current project.
Mark Holman-Harris
VFX Supervisor
Kojo- South Australia
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