Texture formats overview: Difference between revisions
From FSDeveloper Wiki
Jump to navigationJump to search
m (→Notes) |
mNo edit summary |
||
| Line 18: | Line 18: | ||
! style="background:#C0C090;" | Texture Type | ! style="background:#C0C090;" | Texture Type | ||
|----- align="left" | |----- align="left" | ||
| DXT1 || All ''' | | DXT1 || All '''¹''' || 1-bit Alpha / Opaque || N/A || 8:1 || Simple non-alpha | ||
|----- align="left" | |----- align="left" | ||
| DXT2 || Not supported || Explicit alpha || Yes || 4:1 || Sharp alpha | | DXT2 || Not supported || Explicit alpha || Yes || 4:1 || Sharp alpha | ||
| Line 45: | Line 45: | ||
=== Notes === | === Notes === | ||
* ''' | * '''¹''' DXT1 with an alpha may cause transparency issues in FSX SP2. | ||
* Mixing DXT1 & DXT3 textures may cause performance problems. | * Mixing DXT1 & DXT3 textures may cause performance problems. | ||
Revision as of 15:45, 5 February 2008
Placeholder text for a Texture Types overview doc.
Edit for FS applicability.
S3TC Format Comparison
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.
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) |
