Controlling Rendering Quality

The JavaTM Tutorial

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Trail: 2D Graphics
Lesson: Displaying Graphics with Graphics2D

## Controlling Rendering Quality

> You can use the `Graphics2D` rendering hints attribute to specify whether you want objects to be rendered as quickly as possible or whether you prefer that the rendering quality be as high as possible.

> To set or change the rendering hints attribute in the `Graphics2D` context, you can construct a `RenderingHints` object and pass it into `Graphics2D` `setRenderingHints.` If you just want to set one hint, you can call `Graphics2D` `setRenderingHint` and specify the key-value pair for the hint you want to set. (The key-value pairs are defined in the `RenderingHints` class.)

> For example, to set a preference for antialiasing to be used if possible, you could use `setRenderingHint`:

> >     g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,aliasing);

> > Note: Not all platforms support modification of the rendering mode, so specifying rendering hints does not guarantee that they will be used.

> `RenderingHints` supports the following types of hints:

> - Alpha interpolation--default, quality, or speed
> - Antialiasing--default, on, or off
> - Color rendering-default, quality, or speed
> - Dithering--default, disable, or enable
> - Fractional metrics--default, on, or off
> - Interpolation--nearest-neighbor, bilinear, or bicubic
> - Rendering--default, quality, or speed
> - Text antialiasing--default, on, or off

> When a hint is set to default, the platform rendering default is used is used.

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