Anti-aliasing
Page 1: Anti-aliasing vs Resizing

In addition to the anti-aliasing options available on Terragen, an image can be anti-aliased by rendering in larger size and then resampling to target size with an image manipulation program.

On this page, different anti-aliasing methods are compared, in combination with different resampling ratios.
- The images in the first column were rendered without antialiasing.
- The images in second and third column were rendered with "fast" and "ultra" anti-aliasing methods, respectively.
- The images in the first row were rendered directly into the target size, 256x256 pixels.
- In the following rows, larger render sizes were used and then resampled with different resamping ratios. Both integer and non integer ratios were used for comparison.

The render time of each image is given in the "alt" text.  (On IE, hold cursor on the image to see the alt text).
Click "Zoom 2x" link to see the images in larger size.  (This does not download new images, just zooms the existing ones.)

Normal size - Zoom 2x

	No anti-aliasing	"Fast" anti-aliasing	"Ultra" anti-aliasing
Rendered size 256 x 256
Rendered size 512 x 512
Rendered size 600 x 600
Rendered size 1024 x 1024

As you can see, rendering at 2x size gives better quality than you can get with anti-aliasing in normal size. Using higher size increases the render time but does not give noticeably better results.

Next page: Resampling methods ->