tint() / Reference / Processing.org

Name

tint()

Description

Sets the fill value for displaying images. Images can be tinted to specified colors or made transparent by including an alpha value.

To apply transparency to an image without affecting its color, use white as the tint color and specify an alpha value. For instance, tint(255, 128) will make an image 50% transparent (assuming the default alpha range of 0-255, which can be changed with colorMode()).

When using hexadecimal notation to specify a color, use "#" or "0x" before the values (e.g., #CCFFAA or 0xFFCCFFAA). The # syntax uses six digits to specify a color (just as colors are typically specified in HTML and CSS). When using the hexadecimal notation starting with "0x", the hexadecimal value must be specified with eight characters; the first two characters define the alpha component, and the remainder define the red, green, and blue components.

The value for the gray parameter must be less than or equal to the current maximum value as specified by colorMode(). The default maximum value is 255.

The tint() function is also used to control the coloring of textures in 3D.

Examples

```
size(400,400);
PImage img;
img = loadImage("yuya-onsen.jpg");
image(img, 0, 0);
tint(0, 153, 204);  // Tint blue
image(img, width/2, 0);
```
```
size(400,400);
PImage img;
img = loadImage("yuya-onsen.jpg");
image(img, 0, 0);
tint(0, 153, 204, 126);  // Tint blue and set transparency
image(img, width/2, 0);
```
```
size(400,400);
PImage img;
img = loadImage("yuya-onsen.jpg");
image(img, 0, 0);
tint(255, 126);  // Apply transparency without changing color
image(img, width/2, 0);
```