Что такое формат файла PVR?
.pvr files are used by mobile devices based on PowerVR chips.
.pvr files are used for storing textures optimized for PowerVR graphics chips used by such devices as the Sega Dreamcast console and various mobile devices. .pvr files compress texture data for better performance on weaker hardware, storing it in formats a GPU can sample directly - bypassing CPU decompression at runtime. Two distinct lineages share the .pvr extension: the classic Dreamcast PVRT format (sometimes preceded by a GBIX global-index block), and the modern PVR3 container specified by Imagination Technologies, which supports PVRTC (2 bpp/4 bpp), ETC1/ETC2, ASTC, and uncompressed RGBA pixel formats.
.pvr files can be converted to other formats using dedicated conversion tools such as PVRTexTool (Imagination's official SDK). Many such tools are available as plugins for various image editing applications. For cross-vendor texture workflows, the KTX container and DDS format are common alternatives.
Aside from the Sega Dreamcast game console, PowerVR chips are installed on many Apple devices, including the iPhone series. PowerVR is a very efficient technology that offers great performance at a low cost. MediaTek also uses PowerVR graphics in their SoC products.
Безопасность и защита
РИСК: LOWA genuine .pvr texture is image data, not executable code, so it is safe to open in a texture tool. The practical cautions are: a file named "texture.pvr.exe" from an untrusted source could be disguised malware (check the real extension); and avoid random "PVR viewer/converter" downloads that bundle adware - Imagination's official PVRTexTool and the open-source PuyoTools are the trustworthy choices.
Детали формата
в двух словахПОЛНОЕ НАЗВАНИЕPowerVR Texture Fileтакже известен как POWERVR Texture File, PVR texture
РАЗРАБОТЧИКImagination Technologies (PowerVR); the Dreamcast variant originated with NEC/VideoLogic PowerVR hardware used in the SEGA Dreamcastс Late 1990s (PowerVR/Dreamcast PVRT); modern PVR3 container specified by Imagination Technologies (PVR File Format v3.0.0)
КАТЕГОРИЯФайлы растровых изображений
MIME-ТИПimage/x-pvr
ТИПGPU texture container (binary); header + (often block-compressed) pixel data
СТАНДАРТОткрытый · без роялти
Это расширение также используется в…
- TiVo / DVR recording (.pvr) - Some PVR/DVR set-top boxes save recorded TV as .pvr video files - an unrelated proprietary recording, not a texture (decode with the box's own software or VLC if the codec is standard).
MAGIC BYTES · СИГНАТУРА ФАЙЛА
СМЕЩЕНИЕ
00010203
HEX
50565203
ASCII
PVR·
Two lineages share the .pvr extension. The modern Imagination PVR3 container begins with a 4-byte version field that reads "PVR" + 0x03 (the magic resolves to 0x03525650 and is endianness-aware so readers can detect byte order). The older SEGA Dreamcast / classic PowerVR texture begins with the ASCII tag "PVRT" (50 56 52 54), sometimes preceded by a "GBIX" global-index block (47 42 49 58). Earlier PVR2 files used a "PVR\\x02" version. Identify by the first four bytes.
Программы, открывающие файлы PVR
Windows3 apps
PVRTexTool (Imagination)
Бесплатно Open the .pvr in the PVRTexTool GUI to preview the texture and its mipmaps; File > Save As to export to PNG or another format.
Adobe Photoshop (with NVIDIA/texture plugin)
Платно Photoshop does not open PVR natively; use a texture import plugin or convert with PVRTexTool first, then edit the PNG. Demote - not a native PVR opener.
PuyoTools (Dreamcast PVRT)
Открытый код Open/extract classic SEGA PVR (PVRT/GBIX) textures from Dreamcast games and export them to PNG; built for the Dreamcast variant. 
macOS1 app
PVRTexTool (Imagination)
Бесплатно Open the .pvr in the PVRTexTool GUI to preview the texture and its mipmaps; File > Save As to export to PNG or another format. 
Linux2 apps
PVRTexTool (Imagination)
Бесплатно Open the .pvr in the PVRTexTool GUI to preview the texture and its mipmaps; File > Save As to export to PNG or another format.
ImageMagick (some PVR variants)
Открытый код May read/convert certain uncompressed PVR variants; for PVRTC/compressed data use PVRTexTool instead. Технические подробности
глубокая спецификация| Container type | Binary GPU texture container: fixed header + optional metadata blocks + raw or block-compressed texture data |
| Encoding | Binary |
| Byte order | Little-endian by default; the PVR3 header version field is endianness-aware, allowing readers to detect file byte order |
| Magic bytes / identification | PVR3: 0x03525650 at offset 0 (reads as "PVR\x03" LE); Dreamcast PVRT: ASCII "PVRT" (50 56 52 54), optionally preceded by a "GBIX" block (47 42 49 58) |
| Format versions | PVR v1/v2 (legacy, "PVR\x02" magic), PVR v3 (current Imagination specification), and the separate Dreamcast PVRT chunk format |
| Supported pixel / compression formats | PVRTC 2 bpp and 4 bpp, PVRTC2, ETC1, ETC2, ASTC (variable bpp), VQ compression (Dreamcast), plus uncompressed RGB/RGBA variants |
| Color depth | 2-128 bpp: PVRTC at 2-4 bpp; ETC1/ETC2 at ~4-8 bpp; ASTC variable; uncompressed up to 32-bit RGBA8888 or 128-bit float RGBA32 |
| Mipmap support | Yes - full mipmap chains can be embedded within a single .pvr file |
| Texture types supported | 2D textures, cube maps, texture arrays, and volume (3D) textures (PVR3 container); 2D and VQ cube map textures (Dreamcast PVRT) |
| Dimension constraints | PVRTC requires square, power-of-two dimensions (e.g., 64×64 up to 4096×4096 or 8192×8192 depending on target GPU); PVR3 with other formats allows non-square sizes |
| Typical file size | 4 KB - 16 MB for a single texture; larger with embedded mipmap chains or texture arrays |
| MIME type | image/x-pvr (also served as application/octet-stream) |
| Target platforms | iOS, Android, Windows, macOS, Linux (modern PVR3); Sega Dreamcast (legacy PVRT, native hardware format) |
| Developer / specification owner | Imagination Technologies (PVR3/modern SDK specification); NEC/VideoLogic and SEGA (original Dreamcast PVRT format) |
| GPU compression method | PVRTC uses a lossy two-bit-rate block scheme unique to PowerVR hardware; PVR3 also wraps Khronos formats (ETC, ASTC) enabling cross-vendor use |
| Выпущен | Late 1990s (PowerVR/Dreamcast PVRT); modern PVR3 container specified by Imagination Technologies (PVR File Format v3.0.0) |
| Последняя версия | PVR File Format v3.0.0 (PVR3 header; current Imagination specification) |
| Открыть стандартное | Да · без роялти |
| Спецификация | docs.imgtec.com |
Конвертации PVR
Возможно
.PVR .PNGРУКОВОДСТВО
Да - откройте .pvr в PVRTexTool (бесплатно от Imagination Technologies) и экспортируйте в PNG.
Как конвертировать
.PVR .DDSРУКОВОДСТВО
Да - PVRTexTool (бесплатно, Windows/macOS/Linux) конвертирует PVR в DDS напрямую и является самым быстрым…
Как конвертировать
.PVR .KTXРУКОВОДСТВО
Да - PVRTexTool (бесплатно, от Imagination Technologies) конвертирует PVR в KTX напрямую.
Как конвертировать
.PVR .JPGРУКОВОДСТВО
Да, вы можете конвертировать PVR в JPG - самый быстрый путь через бесплатный PVRTexTool от Imagination,…
Как конвертировать
Вопросы и ответы сообщества
спрошено пользователямиВопросов пока нет - станьте первым, кто спросит о файлах PVR.
Часто задаваемые вопросы
How do I open a PVR file?
Use Imagination's free PVRTexTool - it opens PVR textures, previews them and exports to PNG. For SEGA Dreamcast .pvr (PVRT) textures, the open-source PuyoTools opens and extracts them too.
Why does my PVR look garbled or won't open in an image viewer?
PVR is a GPU texture format, not a normal image. Ordinary photo viewers can't decode PVRTC/ETC compression. Open it in PVRTexTool (or PuyoTools for Dreamcast files), which decodes the texture properly.
How do I convert a PVR to PNG?
Open the .pvr in PVRTexTool and choose Save As / export to PNG (PuyoTools does the same for Dreamcast PVRT textures). The compressed texture is decoded to a standard image.
What is a Dreamcast PVR file?
It's the native texture format of the SEGA Dreamcast (a PowerVR-powered console), using a 'PVRT' chunk sometimes preceded by 'GBIX'. Game modders extract them with PuyoTools and export to PNG.
Is .pvr the same as a video recording?
No - that's a different, unrelated use of the extension. Some DVR/TiVo set-top boxes save recorded TV as .pvr video. A PowerVR .pvr is a GPU texture image; check the file's source to tell which you have.
Can I edit a PVR texture?
Convert it to PNG in PVRTexTool, edit the PNG in any image editor, then re-encode it back to PVR (with the right compression for your target GPU) using PVRTexTool.
Ссылки
1Wikipedia - PVRTC (PowerVR texture compression)en.wikipedia.org
2Imagination Technologies - PVR File Format header specificationdocs.imgtec.com
