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add hand model de-scaling #344

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add hand model de-scaling #344

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35 changes: 35 additions & 0 deletions KerbalVR_Mod/KerbalVR/InteractionSystem/KerbalVR_Hand.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -465,6 +465,33 @@ public bool IsFingerTrackingPinching()

return false;
}

private float GetSteamVRWorldScale()
{
try
{
var chaperone = OpenVR.Chaperone;
if (chaperone != null)
{
float x = 0f, z = 0f;
chaperone.GetPlayAreaSize(ref x, ref z);

// Baseline play area is 2x2 meters at 100% scale
// World scale is inversely proportional to play area size
const float baseline = 2.0f;
float worldScale = baseline / x;

return worldScale;
}
}
catch (System.Exception e)
{
Utils.LogError($"[WorldScale] Error: {e.Message}");
}

// Utils.LogWarning("[WorldScale] Could not get play area, using 1.0");
return 1.0f;
}

protected void Update()
{
Expand Down Expand Up @@ -525,6 +552,14 @@ protected void Update()
handObject.SetActive(isRendering);

}

// Compensate for world scale
if (isRendering && isRenderingHands.IsChanged())
{
float worldScale = GetSteamVRWorldScale();
transform.localScale = Vector3.one / worldScale;
}

}

private void UpdateCollider()
Expand Down