DaVinci Resolve 19 Color Grading: Enhancing Your Workflow with DCTR Color Space Transformation and Optimizing Starting Positions

Director Qim

Understanding Color Grading Starting Positions [0:00:13]

The video begins by highlighting a significant challenge in color grading: establishing the correct "startup positions."

• Defining Startup Positions [0:00:22]
  • Startup positions refer to the foundational settings that dictate how the final output will look.
  • These settings influence the desired aesthetic, such as high dynamic range, cinematic, commercial, high key, or low key looks.
• Importance of Knowing Final Output [0:00:32]
  • Before beginning the actual color grading process, it's crucial to have a clear vision of the final desired output.
  • Understanding the output allows for a more organized and efficient workflow.
• Consequences of Blind Grading [0:03:46]
  • Working "blind" without a defined output leads to an unnecessarily difficult and unpredictable grading journey.
  • It often results in aimless tweaking and unsatisfactory results.

Traditional DaVinci Resolve Color Management [0:01:23]

The presenter first demonstrates the conventional approach to setting up color management in DaVinci Resolve.

• Initial Color Correction [0:01:33]
  • The first step is to correctly manage the color space, specifying the output color space (e.g., Rec.709, sRGB, Rec.2020).

    

  • For footage shot in Log (e.g., Slog3), it's converted to a standard display color space like Rec.709 2.4.
• Applying Film Look Emulations [0:03:01]
  • After the initial conversion, some colorists might directly apply film look emulations to achieve a specific aesthetic.
  • However, this method can sometimes lead to color casting issues, especially with certain blue or neon lights, resulting in unwanted distortions.
  • The goal is to provide a better starting point than default film look emulations within DaVinci Resolve.

Revolutionizing Workflow with DCTR Color Space Transformation [0:04:09]

The core of the video introduces a powerful alternative for setting the starting position: the DCTR (Digital Color Transformation Reactor) color space transformation tool.

• Introducing the DCTR Tool [0:04:18]
  • The DCTR tool provides a superior initial transformation, offering a robust foundation for color grading.
  • It’s presented as a better starting point compared to the native color space transformation within DaVinci Resolve.
• Benefits of DCTR [0:04:30]
  • Offers a "free" color space transformation with a natural film look.
  • Addresses and minimizes color cast issues commonly associated with digital camera footage.
  • Provides more "room" for creative grading and corrections.
• Comparison: DCTR vs. Traditional Rec.709 [0:05:10]
  • A side-by-side comparison reveals significant differences between a standard Slog conversion to Rec.709 and the DCTR output.
  • The DCTR output typically presents better skin tones, a wider and more balanced color range, and an overall more pleasing aesthetic from the outset.

    

Exploring DCTR Options [0:06:16]

The DCTR tool offers a variety of presets and adjustments for customizing the starting point.

• 1. Film Presets [0:07:37]
  • Colorful [0:07:43]: For outputs desiring vibrant and rich colors.
  • Umbra [0:07:47]: Provides a subtle film tone, offering a free color space with a cinematic feel.
  • Base [0:07:58]: A neutral preset, similar to the normal look.

    

• 2. Tone Scale Presets [0:08:16]
  • Offers options for adjusting contrast:
    • High Contrast
    • Low Contrast
  • Includes various other artistic looks (e.g., Marvelous).

    

• 3. Creative White Options [0:08:48]
  • These settings control the "printing style" of the white point in the image.
  • Options include:
    • B5 (Pure White) [0:09:23]: Achieves a very clean, pure white.
    • Bluish Whites
    • Warm Whites (D50, D55, D60) [0:09:45]: Provides warmer white tones.

      

• 4. Output Display Options [0:10:01]
  • Rec.709 2.4 [0:10:04]: A common standard, similar to Gamma 2.4.
  • sRGB 2.2 [0:10:15]: A favorite for its dynamic contrast, offering a slightly different look than Rec.709 2.4.
  • Rec.2020 (similar to HG 2020) [0:10:27]: Suitable for HDR output, often used for TV broadcasts.
  • Display P3 2.2 [0:10:49]: Similar in characteristics to sRGB.
  • Red 22 RGB [0:11:29]: Offers a more contrasted look but with reduced saturation.

    

Practical Application and Advantages [0:11:40]

The DCTR tool serves as a powerful starting point, enabling more effective and visually appealing color grades.

• DCTR as the Optimal Starting Point [0:11:40]
  • By correctly setting the initial transformation with DCTR, subsequent corrections are simplified and more impactful.
  • The tool helps achieve a professional look with minimal effort.

    

• Achieving a Film Look with DCTR [0:13:18]
  • DCTR facilitates obtaining a cinematic film look, often outperforming built-in film emulation tools by providing a cleaner base.
• Avoiding Color Casting with DCTR [0:13:56]
  • The tool helps prevent unwanted color casts, especially in scenes with challenging lighting, which can be a persistent problem with other methods.
• Demonstration of a Final Grade [0:14:42]
  • The presenter showcases a fully graded example, demonstrating how DCTR provides a strong foundation that pairs well with creative LUTs and minor corrections.

    

• Less Twisting, Better Output [0:17:03]
  • With DCTR, less aggressive manipulation of color wheels and curves is required to achieve a desired aesthetic.
  • The result is a more natural and refined image.
• Extra Detail and Sharpness [0:16:38]
  • Beyond color, the DCTR transformation also appears to enhance image details, leading to a sharper overall look.