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Topics - alex4d

#1
Post-processing Workflow / Final Cut Pro X plug-in
September 10, 2012, 06:38:57 PM
December 18 2012 update: The Final Cut Pro 10.0.6 update broke this version of the plug-ins. I've come up with a replacement, see later post...




I've updated my plug-in for Final Cut Pro X to be much more flexible when it comes to how the under- and over-exposed frames are combined.

For each kind of frame (under-exposed or over-exposed) you can
- Set blend mode (darken, lighten, multiply etc.)
- Set opacity
- Choose a luma key - select which parts of the frame to use based on luminance values. You can use the brightest or darkest parts of the frame for example
- Set overall brightness, contrast and gamma using PhotoShop-style levels controls



You can choose to overlay the under-exposed frames on the over-exposed frames or vice versa.



If you want to combine the frames in other ways, you can choose to display the source frames in more than one copy of generator and use Final Cut Pro X to do your composition.

Visit my blog post to find out more.
http://alex4d.wordpress.com/2012/09/10/ml-hdr-compose-plus-fcpx-generator/

Due to constraints in the way Final Cut Pro X (and Motion) do effects, I had to make a generator for each HDR frame rate. I've started with 59.94 and 50 fps. I'll make different frame rates on request.


Alex4D
#2
Hello!

Some of you may know my prototype HDR tool for Final Cut Pro X that I uploaded back in January. It automates some of the post-processing workflow. Using the tool, you can control how the second of each frame pair is composited on top of the first. You can control the opacity curve (select which parts of the frame are overlaid based on their brightness) and gamma/levels of the overlaid frame.

For more information, instructions, demo video and download link, go to
http://alex4d.wordpress.com/2012/01/03/ml-u-hdr-compose-fcpx-plug-in/

Since then I've worked on a much more flexible tool.

Given that
1. I haven't updated my 5D2
2. I have no experience of coming up with different HDR recipes (depending on different kinds of shot)
3. I know a lot about creating Final Cut Pro X effects (50+ so far)

...I was wondering if anyone would like to help test my effect?

The beta version only works with 29.97fps source footage, producing a clip that effective plays at 14.99fps. Eventually I'll create versions for other frame rates once I'm happy with this version.

Proposed new features:
1. Choose whether underexposed frames are overlaid on top of overexposed frames or vice versa
2. Different transfer modes for under- and over- frames - such as lighten, darken, overlay, etc.
3. The ability to show under- and over- frames before and after blending is applied.



A few 2-3 sec sample videos would be helpful, as well as some suggestions of settings combinations for different lighting conditions (streets at night, dark room with bright window etc.).


If you're interested in getting a beta copy please send me an email: ml at alex4d.com




Alex Gollner