Microsoft DirectDraw Surface (DDS) Writer Feature Type Parameters

To access feature type parameters, click the gear icon on a feature type in the workspace. This opens the Feature Type Parameter Editor.

Tip To always display the editor in FME Workbench, you can select View > Windows > Parameter Editor.

General

All feature types share similar General parameters, which may include Feature Type Name, Reader or Writer information, and Geometry.

In most Writer Feature Type parameter dialogs, you can also control Dynamic Schema Definitions. Some database formats accept Table or Index Qualifier prefixes on the output table feature type.

Important These parameters apply only to a selected feature type, not to the entire writer. If a feature type parameter listed here conflicts with a writer-level parameter, then the writer parameter will be ignored and this feature type parameter will be used.

Raster Compression

Method

Sets the compression method for the raster.

Values: DXT1, DXT1A, DXT3, DXT5, ETC1

DXT1 and ETC1 produce approximately equivalent file sizes. DXT3 and DXT5 give file sizes two times the size of DXT1 and ETC1. DXT1 and ETC1 compressed files store RGB data while DXT3 and DXT5 store RGBA data. DXT1A is simply DXT1 compression with an alpha channel that can indicate full transparency or no transparency.

Default: DXT1

Quality

Sets the quality of the raster post-compression.

Highest is the slowest but has the best Peak Signal-to-Noise Ratio (PSNR), leading to higher texture quality.

The Fastest setting can yield a tenfold increase in writing speed compared to the Highest setting, but leads to slightly lower texture quality.

Values: Fastest, Fast, Normal, High, Highest

Default: Normal