To invert a mask in Premiere Pro, you need to use the "Inverted" checkbox within the Effect Controls panel. Here's a step-by-step guide based on the provided reference:
Steps to Invert a Mask:
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Apply an Effect that Uses Masks: Start by dragging an effect, such as Gaussian Blur, onto the clip you want to modify.
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Access Effect Controls: Select the clip in your timeline and then navigate to the Effect Controls panel. This panel displays all the settings and options for the effects you have applied.
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Create a Mask: In the Effect Controls panel, under the applied effect (e.g., Gaussian Blur), you will see mask creation options. You can create an ellipse, a 4-point polygon, or a free draw bezier mask according to your requirement.
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Adjust the Mask: Modify the mask's position and shape to select the area you initially want to affect (or not affect).
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Apply the Effect: In our example of Gaussian blur, increase the blur amount to see the effect on the masked area. By default, the effect will be applied only to the area inside of the mask.
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Invert the Mask: To invert the mask, locate the "Inverted" check box within the mask settings in Effect Controls panel, and click it. By doing so, the effect will now be applied outside of the mask area instead of inside.
Example using Gaussian Blur
Based on the reference, let’s use the Gaussian blur as an example:
- Initially, you create a mask around a face, for example. When you increase the Gaussian blur, only the face inside the mask is blurred.
- If you now invert the mask, the face will be clear while everything outside of the face mask will be blurred.
Summary:
| Step | Action | Description |
|---|---|---|
| 1 | Apply an Effect | Drag an effect (e.g., Gaussian Blur) to a clip in your timeline. |
| 2 | Open Effect Controls | Select the clip, and navigate to the Effect Controls panel. |
| 3 | Create a Mask | Add an ellipse, 4-point polygon, or free draw bezier mask under the applied effect. |
| 4 | Adjust Mask | Modify the mask's position and size to your desired selection. |
| 5 | Check Effect Application | See how the effect is applied inside the mask by default. |
| 6 | Invert the Mask | Click the "Inverted" checkbox to apply the effect to areas outside of the mask. |
By using the "Inverted" checkbox, you can quickly switch which area of the footage the effect should target, whether it's inside or outside the masked area, providing flexibility in your editing process.
