“oh I meant using the freetrack.dll as you were trying initially (but getting null values), so TG writes to it and your Blender script reads from it (without any added layer/networking stuff).”

That’s a very good idea, so it will work also with Freetrack, and any other tool that uses the Freetrack protocol/dll

“Just tried FreeTrack, it uses almost the same functions and structs as FreePIE, but strangely it causes blender game engine to crash immediately on calling the read function while the Gyre is running. While it’s not, it returns null results.”
With the Trinus DLL, FreePIE DLL, or both ?

FreePIE’s FreetrackClient.dll must be using some kind of shared memory that Blender doesn’t like, but the IO pluging should do the same …

The Struct yo have mapped from ctypes, has ALL this fields ?

typedef struct __FTData

It must have them, even if you don’t use them all, because FreePIE writes the entire struct, and if the struct you pointed to is too small, it will write outside the struct, somewhere unknown in the Blender memory space, so it can result in a crash, especially if the struct was in the stack instead of the heap.

When FreePIE is not running, the DLL see that the shared memory is not initialized, and it doesn’t write anything on your struct, so it doesn’t crash.

typedef struct __FTData {
    int DataID;
    int CamWidth;
    int CamHeight;
    /* virtual pose */
    float Yaw;   /* positive yaw to the left */
    float Pitch; /* positive pitch up */
    float Roll;  /* positive roll to the left */
    float X;
    float Y;
    float Z;
    /* raw pose with no smoothing, sensitivity, response curve etc. */
    float RawYaw;
    float RawPitch;
    float RawRoll;
    float RawX;
    float RawY;
    float RawZ;
    /* raw points, sorted by Y, origin top left corner */
    float X1;
    float Y1;
    float X2;
    float Y2;
    float X3;
    float Y3;
    float X4;
    float Y4;
} FTData;

• This reply was modified 7 years, 8 months ago by cercata.
• This reply was modified 7 years, 8 months ago by cercata.
• This reply was modified 7 years, 8 months ago by cercata.

@Jackii I was unable to unzip your testgame.zip

I tried the last release and while this one actually does something (it actually sees the phone’s sensor, before only freepie did), I still need freepie to be running, and more importantly the tracking is all over the place. It looks like if you were the Flash having a seizure (though it’s VERY useful for inducing projectile vomiting).