Search TipsGrade
The Grade node enables you to set black and white points of the camera.
This node has an equivalent in Nuke.
Inputs and Controls
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Connection Type |
Connection Name |
Function |
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Input |
src |
The image sequence to which the Grade is applied. |
|
mask |
An optional image to use as a mask. By default, the effects are applied according to the value in the alpha channel of the mask. |
|
Control (UI) |
Knob (Scripting) |
Default Value |
Function |
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|
Type name |
TypeName |
Grade |
The node type. |
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| Enabled | Enabled | ticked | If unchecked, this node will be omitted from the compiled image processing graph. Any incoming connections will be forwarded to the first output port, if any. | |||
| Label | Label | N/A | An optional label to display on the node. | |||
| Parameters | ||||||
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Reset parameters to default value using the reset icon:
Switch between a single channel and separate channels:
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| Blackpoint | Blackpoint | 0.000 | Sets the black point (typically the darkest pixel). Any pixels of this value are set to 0. In other words, this color is turned into pure black. | |||
| Whitepoint | Whitepoint | 1.000 | Sets the white point (typically the lightest pixel). Any pixels of this value are set to 1. In other words, this color is turned into pure white. | |||
| Lift | Lift | 0.000 | Any pixels that are black are set to this color. | |||
| Gain | Gain | 1.000 | Any pixels that are white are set to this color. | |||
| Multiply | Multiply | 1.000 | Multiplies the result of the Grade node by this factor. This has the effect of lightening the result while preserving the black point. | |||
| Offset | Offset | 0.000 |
Offsets the result of the Grade node. Offsetting is to add a fixed value to the result, which lightens the whole image. |
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| Gamma | Gamma | 1.000 | Applies a constant gamma value to the result of the Grade node. This lightens or darkens the midtones. | |||
| Reverse | Reverse | unticked | When enabled, this feature allows you to copy and paste this node and invert its effect further downstream. This performs the opposite gamma correction, followed by the opposite linear ramp. | |||
| Black clamp | BlackClamp | ticked | When enabled, any output values that are lower than 0 are set to 0. | |||
| White clamp | WhiteClamp | unticked | When enabled, any output values that are higher than 1 are set to 1. | |||
