d912pxy - "DirectX9 to DirectX12 API proxy for Guild Wars 2"

d912pxy is a way to make games that use DirectX 9, use DirectX 12 instead, without changing any game code.

This is specifically designed for Guild Wars 2. You can try to use it in other games, it might work.

This project is in early development, expect bugs, crashes, hangs, stalls and some other fun stuff.

Showcase

Profiling shows that API overhead for d912pxy is up to 70% less than for plain DirectX9. Real performance differs depending on the scene and the hardware.

For example, running Mistlock Sanctuary in Guild Wars 2 on i7-7700/GTX960 results in:

@6.3k batches, all max, 1080p

dx9
  min FPS: 5,5
  max FPS: 21,5
dx12
  min FPS: 17,6
  max FPS: 26,6
boost:
  min FPS: +220%
  max FPS: +23%

DX12:

https://cdn.discordapp.com/attachments/477036595019644928/539417113593380865/unknown.png

DX9:

https://cdn.discordapp.com/attachments/477036595019644928/539417612501647360/unknown.png

Requirements

You will obviously need a DirectX12 capable GPU, with 12.1 feature level and 3GB+ VRAM. 16 GB of RAM is recommended.

Requirements will become more precise in the future based on feedback and code optimization.

Installing

1. Recommended: Set your resolution to Fullscreen Windowed or Windowed mode.
2. Disable all overlay software.
3. Download latest release from here.
4. Unpack it into the game folder, so d912pxy folder is in game root folder. (Next to Gw2-64.exe)
5. Run the game.

Uninstalling

You can uninstall by simply deleting the d912pxy folder and bin64/d3d9.dll. Don't remove any files other than those specified above.

Known bugs

• Screenshot functionality not working

Troubleshooting

Case 1

Things are loading part-by-part.

Solution

d912pxy loads shaders asynchrounosly, because there is no efficient way to load them instantly.

This can create some visual errors, but results in much better performance.

Case 2

Game crashes/hangs

Solution

Do not ask game support about these crashes!

If your game crashes without d912pxy don't ask about this here because d912pxy does zero modification to the game data.

Make sure that the game runs without d912pxy!

Next, update your driver and directx9.

(link to dx9 https://www.microsoft.com/en-us/download/details.aspx?id=34429)

Then, if you are still here, post your issue here with

1. Log file form P7logs
2. Crash.dmp and d912pxy_crash.txt if you have it    
3. Version number of d912pxy you used

If you are asked to run debug version do this

0. Debug version writes ton of data, do not run it for a long time!
1. Install Release_d version from here
2. Run the game and reproduce the error
3. Send the log file or/and Crash.dmp to github

Case 3

Visual errors

Solution

0. Update GPU drivers first!
1. Install Release_ps version from here
2. Run the game and reproduce the visual error
3. Exit the game and remove d912pxy/pck/shaders_cso.pck
4. Install the regular version
5. Run the game again and wait for the shaders to recompile (this will take some time)
6. If the error is not fixed post your issue here with a description on how to reproduce the visual error

Support developer

WMZ 442298672293