Question cmd.DrawMesh and camera.WorldToViewportPoint

Hi all! I have a problem. I'm writing a custom simplified Lens Flare for VR, and I just want to draw a texture at certain coordinates.

I used the standard example
https://docs.unity3d.com/Packages/c...tainers/create-custom-renderer-feature-1.html
and it worked, it only worked in the editor.

I modified the code and now I pass the eye index to the custom shader (in the shader itself I do the division into the left and right eyes using unity_StereoEyeIndex). The shader works fine, there are no questions to it.

But the question arose about the transmission of Viewport coordinates - in VR it behaves inadequately and draws LensFlare only in Quaternion.identity rotation and in some undefined coordinates. Moreover, I tried to pass to camera.WorldToViewportPoint(lensFlare.transform.position, eye) and eye = Camera.MonoOrStereoscopicEye.Mono and normal eyes, everything is the same.

What am I doing wrong?

Code (CSharp):

1. ref var cameraData = ref renderingData.cameraData;
2. var camera = cameraData.camera;
3.  
4. cmd.SetViewProjectionMatrices(Matrix4x4.identity, Matrix4x4.identity);
5. var scale = new Vector3(1, camera.aspect, 1);

Code (CSharp):

1. var position = camera.WorldToViewportPoint(lensFlare.transform.position, eye) * 2 - Vector3.one;
2. position.z = 0;
3.  
4. var matrix = Matrix4x4.TRS(position, Quaternion.identity, scale * lensFlare.Scale);
5. cmd.DrawMesh(_mesh, matrix, _lensFlareMaterial, 0, 0);