Tutorial: Modify Texture

This guide provides a detailed walkthrough for using the Modify Texture job. This is a powerful utility job that allows you to perform a wide range of adjustments to a single texture, including transformations, color corrections, and making textures seamlessly tileable.

1. Setting Up the Modify Texture Job

1. In the main Texture Tools window, click the Add Job button.

2. From the dropdown menu, select Job: Modify Texture.

3. A new "Modify Texture" job will be added to the job queue. Select it to see its properties in the Details panel.

2. Providing the Input Texture

The Modify Texture job operates on a single input texture.

• In the Input viewport on the left, drag and drop the texture you wish to modify from the Content Browser into the INPUT TEXTURE slot.

3. Configuring the Modifications

All the settings for this job are located in the Input Settings category in the Details panel. They are grouped into several sub-categories.

Seamless Tiling

This section allows you to make a non-tiling texture seamlessly repeatable.

• Enable Seamless Tiling: Check this box to activate the seamless tiling algorithm.

• Blend Width: Controls the softness of the blend at the texture's edges. Higher values create a smoother, more gradual transition.

• Height Lerp Amount: Uses the brightness of the texture to influence the blend, which can help hide seams on textures with clear height differences.

Transform

This section contains all the tools for rotating, scaling, and positioning your texture.

• Correct Normal Map Rotation: IMPORTANT! If you are rotating a normal map, you must check this box. It correctly inverts the green channel to ensure the lighting information remains accurate after rotation. This will disable the "Seamless Tiling" option.

• Tile Amount: Repeats the texture within the frame. A value of 2 will tile the texture twice horizontally and vertically.

• Rotation (Degrees): Rotates the texture clockwise by the specified amount.

• Scale (X/Y): Stretches or squashes the texture. X=1, Y=1 is the original scale.

• Flip Horizontally / Vertically: Flips the texture along the corresponding axis.

• Shift (U/V): Moves the texture's position. A value of 0.5 in X will shift the texture halfway across the frame.

Color Adjustments

Use these settings to alter the look and feel of your texture's colors.

• Contrast: Increases or decreases the difference between light and dark areas.

• Preserve Color on Contrast: Prevents colors from shifting hue when adjusting contrast.

• Invert Color: Inverts all colors in the texture.

• Hue Shift (Degrees): Rotates the colors around the color wheel.

• Color Overlay: Tints the entire texture with the selected color. The alpha value of the color swatch controls the intensity of the overlay.

Opacity

These settings modify the texture's alpha (transparency) channel.

• Opacity Power: Adjusts the curve of the alpha channel. Values greater than 1 make the alpha more opaque, while values less than 1 make it more transparent.

• Opacity Multiply: Multiplies the overall alpha value, making it brighter or darker.

• Floor Opacity: Clamps all alpha values to either 0 (fully transparent) or 1 (fully opaque), creating a hard-edged mask.

4. Generating the Modified Texture

1. Once you have configured your input and settings, ensure the Modify Texture job is selected in the job queue.

2. Click the main Run Selected Job button.

3. The tool will process your texture with all the selected modifications. The new texture asset will be saved to the path specified in the Generate Settings category.