How can I change the strength/opacity of the 3D LUTs in Affinity Photo?

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Introduction

3D LUTs in Affinity Photo are applied in adjustment layers. Therefore, changing their properties is just like changing any layer’s properties.

Reducing LUT’s opacity/strength in Affinity Photo

In order to reduce the strength of a 3D LUT, you should reduce the opacity of the 3D LUT adjustment layer.

1. First learn how to apply a 3D LUT in Affinity Photo by visiting document “How do I apply 3D LUTs in Affinity Photo” above.

2. Inside the 3D LUT window, you can change the opacity to a lower value.

Reduce Opacity

3. Alternatively you can change the opacity of the 3D LUT adjustment layer in the Layers Panel.

Reduce Opacity Under Layers Panel

4. You’ve successfully lowered 3D LUT’s opacity.

Increasing LUT’s opacity/strength in Affinity Photo

There are several ways to increase the strength of a 3D LUT. We’ll cover the following two:

1. Duplicating the 3D LUT adjustment layer
2. Changing the 3D LUT adjustment layer blending mode

Duplicating the 3D LUT adjustment layer

1. Go to Layers Panel tab.

Layers Panel

2. Select the 3D LUT adjustment layer by clicking on it.

Select 3D LUT Adjustment Layer

3. Go to Layer > Duplicate or press Command + J (Mac) or Control + J (PC).

Duplicated 3D LUT Adjustment Layer

4. Repeat the process if necessary.

5. Reduce the opacity of the top most 3D LUT adjustment layer if the last layer duplication makes the effect to strong.

Reduce opacity of the top most 3D LUT Adjustment Layer

Changing the 3D LUT adjustment layer blending mode

1. Select the 3D LUT adjustment layer in the Layers panel by clicking on it

Select 3D LUT Adjustment Layer

2. Change the blending mode of the selected 3D LUT adjustment layer until you reach the desired effect.

Change Blending Mode of the 3D LUT Adjustment Layer

Please note that changing the blending mode will change other characteristics such as contrast, brightness, etc. Please refer to official Affinity Photo documentation for detailed explanation about different blending modes and their effects.

If you’d like to reduce the strength of the effect, reduce the opacity of the 3D LUT adjustment layer. Under Opacity, reduce the opacity of the 3D LUT adjustment layer until desired.

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