Rift & Project Cars

Nicholas Ewalt edited this page Apr 20, 2017 · 1 revision

A lot of users are trying to use OVRdrop with Project Cars on their Oculus Rift, only to find it won't work. Here is an explanation as to why it doesn't work, and how to fix it. I just tested this fix myself, so I know it works.

This fix probably only works with the Steam version of Project Cars

Why doesn't it work?

OVRdrop doesn't utilize the Oculus SDK. Certain games, such as Project Cars, even when booted up through Steam/SteamVR, will insist on using the Oculus SDK when you are using an Oculus Rift.

Thankfully, there are certain ways to work around this.

How do I fix it?

For unknown reasons, setting the Project Cars EXEs to run with Compatibility for Windows 7 will allow them to be booted up through SteamVR. Because they render to SteamVR instead of the Oculus SDK, you can see and interact with OVRdrop!

The basic idea is to set the pCARS64.exe and pCARS.exe to run with Compatibility for Windows 7. That's it! Now when you boot up Project Cars through Steam/SteamVR it should render to SteamVR instead of rendering directly to the Oculus SDK.

Steps to set 64 bit version to compatibility mode:

  1. Right click Project Cars in your Steam Library
  2. Click Properties
  3. Click the LOCAL FILES tab
  4. Click Browse Local Files...
  5. Right click pCARS64.exe
  6. Click Properties
  7. Click the Compatibility tab
  8. Check the box next to Run this program in compatibility mode for:
  9. Select Windows 7 in the dropdown.
  10. Click Ok to close the properties window.

Now the 64 bit exe will work with OVRdrop when launched through Steam in SteamVR mode. You should also make the 32 bit version compatible.

Steps to set 32 bit version to compatibility mode:

  1. Continue from Step 4 from the 64 bit steps.
  2. Right click pCARS.exe
  3. Click Properties
  4. Click the Compatibility tab
  5. Check the box next to Run this program in compatibility mode for:
  6. Select Windows 7 in the dropdown.
  7. Click Ok to close the properties window.

Now both executables will work with OVRdrop when launched through Steam in SteamVR mode!

To confirm this is working, pop open the SteamVR Display Mirror. If you can see Project Cars in the Display Mirror, it should be rendering through SteamVR! When you launch up Project Cars normally, it does not appear in the Display Mirror, because it is rendering direct to headset.

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