The Color picker was redesigned in Viz Engine 5.4 to match the needs for an HDR workflow. It automatically converts the selected color into the current color space.

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Colors can be represented in different formats:

  • Hue, Saturation and Value (HSV).

  • Red, Green and Blue Triple (RGB).

  • Hexadecimal value (for web colors).

These color models are available in the color picker of Viz Artist. You can either drag the sliders, or enter values manually. If the color requires an additional alpha value, it is enabled.
All values are represented as floating numbers, and not as integers, as they allow for much higher precision (for color space conversions).

The color picker shows a color spectrum wheel and a Saturation/Value mapping.

General Functions

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When opening the color selector, the current selected color is shown in the top bar, as well as the previous color. Use the undo image-20250814-083900.png button to return to the previous color.

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The color picker image-20250814-084019.png allows you to grab and apply a color from anywhere of the screen. Click the button to open a magnifier window to better select the color you wish.
The color is shown in the small lower left rectangle.

When picking in HDR or BT709 Linear, a color conversion is performed automatically, to match the selected color space.

Note: You can also pick from outside of the Viz Artist window.

Working with Different Color Spaces

The color selector is aware of the scene color space defined in the scene rendering settings. It is possible to define a color in the scene’s encoding, or also in sRGB. The color encoding selector allows you to toggle the color space for editing (this does not modify the scene color space).

Color Picker for BT.709 Linear Mode

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BT709 Linear has the same color range as sRGB, but has a linear mapping instead of the gamma curve. Therefore, the R/G/B channels have a noticeable intensity change in the lower range.

A further difference to the sRGB mode, is that values range from 0 to 1, instead of 0 to 255.

Info: Furthermore, the hexadecimal code also shows the linear representation of the color. When copy-pasting hex colors from the web, this usually means that a temporary switch to sRGB is required to get the desired color.

Color Picker for High Definition Color spaces

As HDR color spaces allow a much wider selection of colors than SDR color space, the color picker offers more functionality. If any color outside of the SDR range is selected, the selected color is labelled as HDR in the top bar.

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The SDR range is marked inside the spectrum map. As long as your selected color is inside the marked area, you are working in SDR space, a color outside is within the HDR color space.

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As color components in high definition color space allow values from 0 to 12, the SDR range is presented inside the sliders as a linear slider, whereas all higher values are shown as logarithmic.
When dragging the value, while in SDR range, your progress is linear, when you enter the HDR range, you see a logarithmic progress.

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Info: Hexadecimal color input are not available in HDR color space.