private void Initialize()
{
initialized = true;
surfaceFound = false;
meshFilter = gameObject.GetComponent <MeshFilter>();
meshCollider = gameObject.GetComponent <MeshCollider>();
if (deformToSurface)
{
if (meshFilter == null)
{
meshFilter = gameObject.AddComponent <MeshFilter>();
}
deformMesh = meshFilter.mesh;
if (meshCollider != null)
{
meshCollider.sharedMesh = deformMesh;
}
}
if (displayImmediately && xr.GetCapabilities().IsSurfaceEstimationFixedSurfaces())
{
InitializeForFixedSurfaces();
return;
}
if (groundOnly)
{
// Start by moving object a reasonable guess for the ground height.
groundHeightGuess = xr.GetCapabilities().IsPositionTrackingRotationAndPositionNoScale()
? 0.0f
: Camera.main.transform.position.y - GROUND_DISTANCE_GUESS;
SetHeight(groundHeightGuess);
}
// If display immediately is off, hide the object until a surface is found.
if (!displayImmediately)
{
SetHidden(true);
}
else if (onSurfaceReady != null)
{
onSurfaceReady.Invoke();
}
}
public void OnPreRender()
{
if (xr.DisabledInEditor())
{
return;
}
if (!initialized || xr.GetVideoShader() != shader)
{
Initialize();
}
if (!isCBInit)
{
buffer = new CommandBuffer();
buffer.Blit(null, BuiltinRenderTextureType.CurrentActive, xrMat);
cam.AddCommandBuffer(CameraEvent.BeforeForwardOpaque, buffer);
isCBInit = true;
}
if (xr.ShouldUseRealityRGBATexture())
{
xrMat.mainTexture = xr.GetRealityRGBATexture();
}
else
{
xrMat.SetTexture("_YTex", xr.GetRealityYTexture());
xrMat.SetTexture("_UVTex", xr.GetRealityUVTexture());
}
float scaleFactor = cam.aspect / xr.GetRealityTextureAspectRatio();
float rotation = lastRotation;
switch (xr.GetTextureRotation())
{
case XRTextureRotation.R270:
rotation = -90.0f;
scaleFactor = cam.aspect * xr.GetRealityTextureAspectRatio();
xrMat.SetInt("_ScreenOrientation", (int)ScreenOrientation.LandscapeRight);
break;
case XRTextureRotation.R0:
rotation = 0.0f;
xrMat.SetInt("_ScreenOrientation", (int)ScreenOrientation.Portrait);
break;
case XRTextureRotation.R90:
rotation = 90.0f;
scaleFactor = cam.aspect * xr.GetRealityTextureAspectRatio();
xrMat.SetInt("_ScreenOrientation", (int)ScreenOrientation.LandscapeLeft);
break;
case XRTextureRotation.R180:
rotation = 180.0f;
xrMat.SetInt("_ScreenOrientation", (int)ScreenOrientation.PortraitUpsideDown);
break;
default:
break;
}
lastRotation = rotation;
Matrix4x4 mWarp = Matrix4x4.identity;
if (scaleFactor > 1 + 1e-2)
{
float invScaleFactor = 1.0f / scaleFactor;
mWarp[1, 1] = invScaleFactor;
mWarp[1, 3] = (1 - invScaleFactor) * .5f;
}
else if (scaleFactor < 1 - 1e-2)
{
mWarp[0, 0] = scaleFactor;
mWarp[0, 3] = (1 - scaleFactor) * .5f;
}
Matrix4x4 m = Matrix4x4.TRS(
Vector3.zero,
Quaternion.Euler(0.0f, 0.0f, rotation),
Vector3.one);
Matrix4x4 nm = m * mWarp;
#if (UNITY_ANDROID && !UNITY_EDITOR)
// ARCore shader rotates internally.
if (xr.GetCapabilities().IsPositionTrackingRotationAndPosition())
{
nm = mWarp;
}
#endif
xrMat.SetMatrix("_TextureWarp", nm);
}