Grade
Brief Description
The Grade modifier lets you change the black and white points of the image. It can also be used to match plates with a consistant grading.
Controls
| Parameter / Script Name | Type | Default | Function |
|---|---|---|---|
Enabled / enabled | Boolean | On | |
Red / process_red | Boolean | On | Enable the red channel in output. Otherwise if there's a source the content of the main source is returned instead, else 0 |
Green / process_green | Boolean | On | Enable the green channel in output. Otherwise if there's a source the content of the main source is returned instead, else 0 |
Blue / process_blue | Boolean | On | Enable the blue channel in output. Otherwise if there's a source the content of the main source is returned instead, else 0 |
Alpha / process_alpha | Boolean | Off | Enable the alpha channel in output. Otherwise if there's a source the content of the main source is returned instead, else 0 |
In Black Point / blackpoint | Color | 0, 0, 0, 0 | 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 |
In White Point / whitepoint | Color | 1, 1, 1, 1 | 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. |
Out Black Point / black | Color | 0, 0, 0, 0 | Any pixels that are black are set to this color. This allows you to, for example, match the tonal range of one clip with that of another. |
Out White Point / white | Color | 1, 1, 1, 1 | Any pixels that are white are set to this color. This allows you to, for example, match the tonal range of one clip with that of another. |
Multiply / multiply | Color | 1, 1, 1, 1 | Multiplies the result by this factor. This has the effect of lightening the result while preserving the black point. |
Offset / offset | Color | 0, 0, 0, 0 | Offsetting adds a fixed value to the result, which, in effect lightens the whole image. You can also add a negative value to the result, in which case the whole image gets darker. |
Gamma / gamma | Color | 1, 1, 1, 1 | Applies a constant gamma value to the result. This lightens or darkens the midtones. |
Invert / invert | Boolean | Off | Applies the inverse transform |
Clamp Black / clamp_black | Boolean | Off | When enabled, any output values that are lower than 0 are set to 0 |
Clamp White / clamp_white | Boolean | Off | When enabled, any output values that are higher than 1 are set to 1 |
Unpremult / predivide | Choice | If Needed | - If Needed: The image RGB channels are divided by the alpha channel before applying the effect if the image is marked as alpha-premultiplied - Never: The image RGB channels are never divided by the alpha channel before applying the effect, even if the image is marked as alpha-premultiplied |
Mask / mask | Image | - | |
Mix / mix_with_source | Float | 1 | Dissolves between the original image at 0 and the image with the effect applied at 1 |