HPL2/AMFP/ColorGr

Color grade texture creation

Overview

Color grading is a way to map the color of a pixel to another color. This can be used to change the brightness, contrast, hue, saturation, … of a whole image.
It is possible to smoothly fade between two different grading templates.
It uses a small 3D texture with a color as input and another color as output.

Requirements

• Photoshop or any other image editing software

Setup

1. Take a screenshot of the game with color grading disabled
2. Open the screenshot in Photoshop
3. Drag and drop the default grading texture on the canvas (\textures\gradingmaps\colorgrading_base.png)
4. Place the color strip anywhere in the image
5. Flatten the image to merge all the layers
6. Select “Image > Mode > 16 Bits/Channel” in the top menu

Adjustments

• Use any of the options in “Image > Adjustments”
• These can be used to change the brightness, saturation, contrast and so on
• Any changes you see on the image in Photoshop will carry over to the game

Layers

• It is also possible to use the any of the layer blend modes
• There are two kinds of layers allowed:

1. Solid color
2. Dupilcate of the first layer

• It is possible to duplicate the first layer and make adjustments to it and then blend it
• The use of Layer Masks is allowed as long as they are generated from the image and not hand painted

[1]

Saving

1. Crop the color strip from the canvas, make sure the resulting image is 256×16 px
2. Select “Save As…” and set the format as “PNG" and save it in the folder “\textures\gradingmaps”
3. [2]