HDR Color Grading Component

The HDR Color Grading component is a post-process effect that enables users to color grade scenes to match a desired look and feel. This component uses a shader behind the scenes to perform the color grading logic on each frame’s pixel.

To reduce compute time:

  1. Generate a look-up texture (LUT) from the current color grading settings by clicking the Generate LUT button on the component.

    HDR Color Grading Generate LUT

  2. Then, activate the generated LUT by clicking the Activate LUT button.

    HDR Color Grading Activate LUT

Upon activation, a Look Modification component is added to the current entity and subsequently the HDR Color Grading component is disabled.

Provider

Atom Gem

Dependencies

PostFX Layer component

Properties

Color Adjustment

HDR Color Grading Color Adjustment

PropertyDescriptionValuesDefault
WeightStrength of the color adjustment properties.Float: 0.0 - 1.01.0
ExposureControls the amount of light entering the camera.Float: -Infinity to Infinity0.0
ContrastControls the clarity of detail.Float: -100.0 - 100.00.0
Pre SaturationControls the intensity of colors during color adjustment.Float: -100.0 - 100.00.0
Filter SwatchApplies a color filter.Eight bits per channel color: 0 - 255255,128,128
Filter MultiplyStrength of the color filter effect.Float: 0.0 - 1.00.0
Filter IntensityControls the intensity of the color filter swatch.Float: -Infinity to Infinity1.0

White Balance

HDR Color Grading White Balance

PropertyDescriptionValuesDefault
WeightStrengh of the white balance.Float: 0.0 - 1.00.0
TemperatureControls the warmness or coolness of the white balance.Float: 1000.0 - 40000.06600.0
TintShifts the white balance from magenta to green.Float: -100.0 - 100.00.0
Luminance PreservationPreserves the apparent brightness when manipulating the white balance.Float: 0.0 - 1.01.0

Split Toning

HDR Color Grading Split Toning

PropertyDescriptionValuesDefault
WeightStrength of the split toning properties.Float: 0.0 - 1.00.0
BalanceControls how shadow and highlight colors are mixed.Float: -1.0 - 1.00.0
Shadows ColorControls the color of areas classified as shadows.Eight bits per channel color: 0 - 255255,128,128
Highlights ColorControls the color of areas classified as highlights.Eight bits per channel color: 0 - 25526,255,26

Shadows Midtones Highlights

HDR Color Grading Shadows Midtones Highlights

PropertyDescriptionValuesDefault
WeightStrength of the Shadow Midtones Highlights properties.Float: 0.0 - 1.00.0
Shadows StartControls the start of pixel brightness values that constitute as shadows.Float: 0.0 - 16.00.0
Shadows EndControls the end of pixel brightness values that constitute as shadows.Float: 0.0 - 16.00.3
Highlights StartControls the start of pixel brightness values that constitute as highlights.Float: 0.0 - 16.00.55
Highlights EndControls the end of pixel brightness values that constitute as highlights.Float: 0.0 - 16.01.0
Shadows ColorColor to apply to shadows.Eight bits per channel color: 0 - 255255,64,64
Midtones ColorColor to apply to midtones, which are the pixel brightness values in between shadows and highlights.Eight bits per channel color: 0 - 25526,26,255
Highlights ColorColor to apply to highlights.Eight bits per channel color: 0 - 255255,0,255

Channel Mixing

HDR Color Grading Channel Mixing

PropertyDescriptionValuesDefault
Channel Mixing RedTransforms the red color channel into a different color.Vector3: 0.0 to infinityX:1,Y:0,Z:0
Channel Mixing GreenTransforms the green color channel into a different color.Vector3: 0.0 to infinityX:0,Y:1,Z:0
CHannel Mixing BlueTransforms the blue color channel into a different color.Vector3: 0.0 to infinityX:0,Y:0,Z:1

Final Adjustment

HDR Color Grading Final Adjustment

PropertyDescriptionValuesDefault
WeightStrength of the Final Adjustment properties.Float: 0.0 - 1.01.0
Post SaturationControls the intensity of colors applied at the end of the color grading process.Float: -100.0 - 100.00.0
Hue ShiftTransforms colors into a different hue.Float: 0.0 - 1.00.0

LUT Generation

HDR Color Grading LUT Generation

PropertyDescriptionValuesDefault
LUT ResolutionSets the resolution of the generated LUT. The higher the resolution, the more accurate the results are to the original color graded settings.16x16x16, 32x32x32, or 64x64x6416x16x16
Shaper TypeApplies a shaper function during LUT generation to match a monitor’s brightness.Linear Custom Range, Log2 48 Nits, Log2 1000 Nits, Log2 2000 Nits, log2 4000 Nits, Log2 Custom Range, PQ (SMPTE ST 2084)None