Blend

Blends textures together based on a mix factor and blending type.

Parameters

texture1 Texture: The first texture to be blended. Default: undefined
texture2 Texture: The second texture to be blended. Default: undefined
mixFactor Float: How much weight to give each picture in the blending. A value of 0.0 only outputs texture1, 1.0 only outputs texture2. Default: 0.5
blendingMode Int: Which blending mode to use. Below is a table of the values and their respective blend modes. Default: 1.0

blendingMode	Blend Mode
1	Additive Blending
2	Subtract Blending
3	Multiplicative Blending
4	Screen Blending
5	Overlay Blending
6	Darken Blending
7	Lighten Blending
8	Difference Blending
9	Exclusion Blending
10	Behind Blending
11	Dissolve Blending
12	Hue Blending
13	Normal Blending
Default	Linear Interpolation

Example

import fip.*;

PShader blend;

PImage ireland;
PImage bird;

void setup() {
  size(1000, 1000, P3D);

  blend = loadShader(FIP.blend);

  ireland = loadImage("ireland.jpg");
  bird = loadImage("bird.jpg");

  blend.set("texture1", ireland); // Blend requires these 2 textures to be passed into it. 
  blend.set("texture2", bird);
  blend.set("mixFactor", 0.5); // Equally blend the images
  blend.set("blendingMode", 0); // Use linear interpolation blending
}

void draw() {
  background(255);
  filter(blend);
}

Images to be blended

Blended image