O plikach TGA

TGA (TGA Image · Format obrazu)

Rok wydania 1984 Twórca: Truevision Inc.

TGA Image (.tga) to standardowy format plików obsługiwany przez KaijuConverter do wymiany danych, archiwizacji i szybkiej konwersji wieloplatformowej.

Kategoria

Raster & Vector Images

Rozszerzenie

.tga

Typ MIME

image/x-tga

Dostępny jako

Wejście Wyjście

Historia powstania

JAK FORMAT TGA
POWSTAŁ.

1984

2005

TGA — Truevision Advanced Raster Graphics Adapter — shipped in 1984 as the native format for Truevision’s TARGA and Vista graphics cards, the first affordable boards that could display 24-bit color on a PC. Before TARGA, PC graphics maxed at 256 colors; after it, the prosumer 3D and video-production markets boomed. Every early 3D rendering package (3D Studio, Wavefront, LightWave) defaulted to TGA output.

TGA is simple and robust: uncompressed or RLE-compressed raster pixels, optional alpha channel, no metadata to speak of. That simplicity made it the default inter-app format for the game industry for 15 years — texture pipelines for Quake, Unreal, Half-Life, and every pre-2005 3D game ran on TGA files. Today TGA survives in legacy game modding communities and 3D rendering pipelines where someone wants a "just pixels, no surprises" file.

CIEKAWOSTKI I
FAKTY.

Every texture in the original Quake (1996), Half-Life (1998), and Unreal (1998) was a TGA file.

Truevision's TARGA board (1987) let PC users display 16.7 million colors — an extravagance at the time.

TGA's optional alpha channel is why the format became the default for texture work before PNG existed.

The format stores pixels bottom-to-top by default, confusing anyone writing their first parser.

NASA used TGA extensively in the 1990s for rendering spacecraft animations — many public-domain archive shots are TGA files.

ZALETY I
OGRANICZENIA.

Zalety

Extremely simple — trivially easy to read and write.
Lossless with optional RLE compression.
Supports 8, 16, 24, and 32-bit color with alpha channel.
Universal in legacy game development and 3D rendering pipelines.

Ograniczenia

No metadata, no color profile, no gamma correction.
Aging — PNG and EXR cover its use cases with better compression.
Bottom-up pixel order trips up newcomer parsers.
Not a web format — browsers don't display TGA natively.

Typowe rozmiary i waga plików

512×512 game texture (uncompressed)

~768 KB

2K render output (uncompressed)

~12 MB

4K render with alpha (RLE)

20-40 MB

Specyfikacja techniczna

MIME type: image/x-targa
Extensions: .tga, .icb, .vda, .vst
Compression: None or Run-Length Encoding (RLE)
Bit depths: 8, 16, 24, 32 bits per pixel
Byte order: Little-endian

KONWERTUJ Z
TGA

tga jpg tga png tga webp tga avif tga gif tga bmp tga tiff tga ico tga pdf

KONWERTUJ NA
TGA

jpg tga png tga webp tga gif tga bmp tga tiff tga

Typowe zastosowania

Game textures, video post-production