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* The library component of Source 2 Viewer is called ValveResourceFormat (VRF).
Valve's Source 2 resource file format parser, decompiler, and exporter.
Source 2 files usually end with _c, for example .vmdl_c.
This repository is split into four components:
- Command-line utility - File data viewer, decompiler and a playground for testing new formats and features.
- GUI Viewer - A vpk archive viewer and extractor. Also supports viewing resources such as sounds, textures, models, maps, and much more.
- Renderer - OpenGL-based rendering engine for Source 2 game assets.
- Library - Provides public API to parse resource files and some helpers.
View the official website for . i View the library documentation here.
Join our Discord
Eye catchy screenshots
What's supported?
- VPK viewer which supports opening and exporting files
- Creating new vpk archives
- Model viewer and decompiler to glTF and modeldoc
- Map viewer and decompiler to glTF and vmap
- Material decompiler to vmat
- Sound player
- Binary KeyValues3 parser
- NTRO support
Limitations
This tool is based entirely on a reverse engineered effort because Valve does not provide any documentation or Source 2 code (SDK or engine code), while the Source 1 SDK and leaked engine code are helpful, a lot of systems and formats have changed.
The code contained in this repository is based on countless hours of reverse engineering Source 2 games and not all intricate details have been figured out.
If you are interested in helping, take a look at the open issues and join our Discord.
Not all formats are 100% supported, some parameters are still unknown and not fully understood.
Supported resource types
| Ext | Name | Support |
|---|---|---|
| vagrp | Animation Group | |
| vanim | Animation | |
| vanmgrph | Animation Graph | |
| vcd | Choreo | |
| vcdlist | Choreo Scene File Data | |
| vcompmat | Composite Material | |
| vcss | Panorama Style | |
| vdata | Data | |
| vents | EntityLump | |
| vjs | Panorama Script | |
| vmap | Map | |
| vmat | Material | |
| vmdl | Model | |
| vmesh | Mesh | |
| vmix | VMix | |
| vmorf | MorphSet | |
| vnmclip | NmClip | |
| vnmgrph | NmGraph | |
| vnmskel | NmSkeleton | |
| vnmvar | NmGraph Variation | |
| vpcf | Particle System | |
| vpdi | Panorama Dynamic Images | No |
| vphys | Physics Collision Mesh | |
| vpost | Postprocessing Settings | |
| vpram | Processing Graph Instance | |
| vpsf | Particle Snapshot | |
| vpulse | Pulse Graph Definition | |
| vrman | ResourceManifest | |
| vrmap | Resource Remap Table | No |
| vrr | Response Rules | |
| vseq | Sequence Group | No |
| vsmart | Smart Prop | Partially |
| vsnap | Particle Snapshot | |
| vsnd | Sound | |
| vsndevts | Sound Event Script | |
| vsndstck | Sound Stack Script | |
| vsurf | Surface Properties | No |
| vsvg | Panorama Vector Graphic | |
| vtex | Compiled Texture | |
| vts | Panorama TypeScript | |
| vvis | World Visibility | No |
| vwnod | World Node | |
| vwrld | World | |
| vxml | Panorama Layout | |
| csgoitem | CSGO Item | |
| econitem | CSGO Economy Item | |
| herolist | Dota Hero List | |
| item | Artifact Item | |
| vdpn | Dota Patch Notes | |
| vdvn | Dota Visual Novels | |
| bin | Tools Asset Info | Handled by ToolsAssetInfo |
| dat | Closed Captions | Handled by ClosedCaptions |
| vcs | Compiled Shader | Handled by CompiledShader |
| vdacdefs | DAC Game Defs Data | No |
| vfe | Flex Scene File | Handled by FlexSceneFile |
| vfont | Bitmap Font | Decrypts VFONT1, supported in Source 1 and Source 2. |
| vpk | Pak (package) | Handled by ValvePak |
List of supported magics
| Magic | Description |
|---|---|
0x03564B56 |
VKV\x03 - First binary keyvalues 3 encoding with custom block compression |
0x4B563301 |
KV3\x01 - Binary keyvalues 3 (version 1) |
0x4B563302 |
KV3\x02 - Binary keyvalues 3 (version 2) |
0x4B563303 |
KV3\x03 - Binary keyvalues 3 (version 3) |
0x4B563304 |
KV3\x04 - Binary keyvalues 3 (version 4) |
0x4B563305 |
KV3\x05 - Binary keyvalues 3 (version 5) |
0x564B4256 |
VBKV - binary keyvalues 1 (handled by ValveKeyvalue) |
0x55AA1234 |
VPK - valve package (handled by ValvePak) |
0x44434356 |
VCCD - closed captions |
0xC4CCACE8 |
tools asset info |
0xC4CCACE9 |
tools asset info (newer version) |
0x32736376 |
vcs2 - compiled shader |
0x31415926 |
murmurhash2 seed used by StringToken |
0xEDABCDEF |
murmurhash64 seed used to encode resource IDs |
VFONT1 |
"encrypted" font file |
0x00564645 |
VFE - flex scene file |
GUI
Source 2 Viewer keeps its settings in %LocalAppData%/Source2Viewer/settings.vdf.
Misc
License
Contents of this repository are available under MIT license, except for Tests/Files folder contains files which have likely come from Valve's games.
Code signing policy
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