Color Warper 101 Part 2: Managing Points & Pins + Chroma-Luma Panel

January 23, 2021

In part 2 of his series, Peder Morgenthaler dives deeper into the controls in DaVinci Resolve's Color Warper.


Series
Day 23: 24 Insights in 24 Days New Year Marathon

Color Warper 101 Part 2: Diving Deeper Into Advanced Controls

In the first part of this series we dipped our toes in the Color Warper, covering the basic concepts & the overall interface.

Now in Part 2, we’re taking a deep dive! We’ll take a look at the toolset for managing point selections and pins, the range selector, and working directly with hue, sat & luma values on a per-point basis using the control sliders.

Together, these tools enable finer, more nuanced control over specific areas of the Color Warper mesh and form the foundation for the creation of detailed looks.

Then, we’ll do a deeper exploration of the mysterious Luma-Chroma panel & see what kind of operations make sense there.  It’s a lot of content, and a long Insight, so settle in but rest assured in part 3, we’ll put all we’ve learned into action to build some creative looks.

The Various Point & Pin Tools To Target Specific Hue & Saturation ranges

The Color Warper provides a handful of ways to select, pin & move specific ranges of points in the mesh.  Using these tools, we can limit and tune our corrections in various ways to achieve more detailed results.  Specific tools, such as Select/Pin Column & Select/Pin Ring – I’ll show you these in action in the video.

The Direct Control Sliders For Specific Types Of Operations

The hue, sat & luma sliders can be used on a per-point basis, or on groups of points. Combining these with the various point selection tools, we can achieve corrections that are not possible through direct manipulation of the mesh alone. In the Insight video we’ll explore these controls in more detail as away to manipulate the mesh with precision.

The Chroma-Luma Panel Is Great For Adjustments Along Opposing Color Axes

Due to the planar nature of two grids in the Chroma-Luma panel, we’re always working along opposing color axes.  Those axes can be changed using the Axis Angle slider, allowing us to target any opposing axis on the color wheel.

And since the y-axis on the grid always represents luma, we can make those chroma adjustments at specific tonal ranges without affecting the rest of the image.  Conversely, adjustments in the y-axis can be made to adjust the luminance of specific color ranges to achieve interesting tonal looks.

Caveat: The Color Warper In R17 Beta 7 Currently Breaks Resolve’s 32bit Float Image Pipeline

In the comments section of the first Insight in this series, Mixing Light member Jean Paul Sneider alerted us to a critical issue with the Color Warper tool.

Currently, in Resolve 17 b7, the Color Warper breaks Resolve’s 32bit float image pipeline, resulting in potential clipping.  Basically, any information that is clipped before or in the Color Warper node will be unrecoverable afterwards.

I expect that this issue will be solved by the official release of Resolve 17, but in the meantime, I recommend that the Color Warper be used with caution. It’s probably best to use it near the end of node chains, after you’ve set overall exposure and contrast and won’t need to recover any clipped data.

Comments & Questions

Please leave any questions or comments you have in the discussion below!

-Peder


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Comments

Homepage Forums Color Warper 101 Part 2: Managing Points & Pins + Chroma-Luma Panel

Viewing 4 reply threads

    • Jamie Dickinson
      Guest

      I did a little visualisation of the Colour Warper, just for fun https://twitter.com/dickij10/status/1348927374960840705


    • Nick R
      Guest

      The reset is actually working according to the manual, “If you have one or more control points selected, clicking this
      button resets their position to the original default position in the warping grid, without
      de-selecting them.” Great for keeping complex selections intact, they’ll reset when you make a new one.

      Thanks for giving such an in-depth look at this, the new tools are definitely going to be changing workflows, very powerful additions.


    • James L
      Guest

      Has the clipping issue been fixed in the full release of Resolve 17?


    • Peder Morgenthaler
      Guest

      Unfortunately it looks like the clipping issue is still present in the full release R17. I’m hoping they fix it soon, but am wondering if its endemic to the way the CW works. I’ll update these posts if it changes.


    • KEITH S
      Guest

      under auto lock the Hue and Sat display — instead of a number value until you click on it to change values. Any changes resets the calibration (not the change) to zero. I want to see the values so I can see the amount of change. Is possible? Luma shows a number value but not Hue and Sat.

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