Difference between revisions of "Texture formats overview"

From FSDeveloper Wiki
Jump to: navigation, search
m (Notes)
m
Line 1: Line 1:
 +
<!-- Remove this line once completed. --> {{:Ambox-Content-WIP}}
 
Placeholder text for a Texture Types overview doc.
 
Placeholder text for a Texture Types overview doc.
  

Revision as of 17:48, 6 February 2008

Placeholder text for a Texture Types overview doc.

Edit for FS applicability.

S3TC Format Comparison

S3TC (aka DXTn or DXTC)

DXT4/5 use an interpolated alpha scheme, they generally produce superior results for alpha (transparency) gradients than DXT2/3.
Some consider DXT5 to be the most flexible general purpose compression codec.

FOURCC FS versions Description Alpha premultiplied? Compression ratio Texture Type
DXT1 All ¹ 1-bit Alpha / Opaque N/A 8:1 Simple non-alpha
DXT2 Not supported Explicit alpha Yes 4:1 Sharp alpha
DXT3 All Explicit alpha No 4:1 Sharp alpha
DXT4 Not supported Interpolated alpha Yes 4:1 Gradient alpha
DXT5 FSX only Interpolated alpha No 4:1 Gradient alpha

Notes

  • ¹ DXT1 with an alpha may cause transparency issues in FSX SP2.
  • Mixing DXT1 & DXT3 textures may cause performance problems.
  • For any packages requiring dual FS9 & FSX compatibility, to minimize any transparency issues, recommend using DXT3 type .

Tools

Tool Description Rating Availability URL
Tool Name Descriptive blurb * * * * * Payware Download Page (SizeMb)
Tool Name Descriptive blurb * * * * * Freeware Download Page (SizeMb)
Tool Name Descriptive blurb * * * * * Payware Download Page (SizeMb)
Tool Name Descriptive blurb * * * * * Freeware Download Page (SizeMb)