/**
* Returns what the device's camera is capturing as a Y texture stored in the R channel.
*/
public Texture2D GetRealityYTexture()
{
if (realityYTexture != null)
{
return(realityYTexture);
}
// Create a texture
var appEnvironment = bridge.GetXRAppEnvironment();
var envTex = appEnvironment.getManagedCameraTextures().getYTexture();
IntPtr envTexPtr = (IntPtr)envTex.getPtr();
if (envTexPtr != IntPtr.Zero)
{
realityYTexture = Texture2D.CreateExternalTexture(
envTex.getWidth(),
envTex.getHeight(),
TextureFormat.R8,
false,
false,
envTexPtr);
}
else
{
int w = envTex.getWidth();
int h = envTex.getHeight();
realityYTexture = new Texture2D(w, h, TextureFormat.R8, false);
byte[] blackBytes = new byte[w * h];
for (int i = 0; i < blackBytes.Length; i++)
{
blackBytes[i] = 0;
}
realityYTexture.LoadRawTextureData(blackBytes);
realityYTexture.Apply();
}
captureAspect = envTex.getWidth() * 1.0f / envTex.getHeight();
// Set point filtering just so we can see the pixels clearly
realityYTexture.filterMode = FilterMode.Point;
// Call Apply() so it's actually uploaded to the GPU
realityYTexture.Apply();
if (envTexPtr == IntPtr.Zero)
{
// Pass texture pointer to the plugin only if it doesn't manage one itself.
bridge.SetManagedCameraYTexture(
realityYTexture.GetNativeTexturePtr(),
realityYTexture.width,
realityYTexture.height,
GetRenderingSystem());
}
return(realityYTexture);
}
