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Fixed in 2020.1.X

Votes

1

Found in

2018.1.0b12

Issue ID

1195557

Regression

No

[XR][XR SDK][Oculus] In mirror view, Render viewport scale changes take effect one frame later than expected

XR SDK

-

When using XR SDK oculus 1.1.1 and higher changing the render viewport scale results in a single frame of the blit to mirror screen occurring incorrectly

1) Create a new project
2) Add Oculus Loader to XR Management standalone window
3) Add the script attached to this bug report to any game object in the scene
4) enter playmode
5) Observe every 2 seconds the render viewport scale changes
6) observe one frame where the viewport is blitted incorrectly into the mirror view on render viewport scale changes

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.XR;

public class RenderViewportScale : MonoBehaviour
{
float renderViewportScale = 1.0f;
// Start is called before the first frame update
// Update is called once per frame


private float[] values = {0.2f, 0.4f, 0.8f, 1.0f};

private float time = 0.0f;

private float changeTime = 2.0f;

private int value = 0;
// void Update()
// {
// float value = 0.5f * (1.0f + Mathf.Sin(2.0f*Mathf.PI * 0.1f* Time.time));
// XRSettings.renderViewportScale = value;
// }

void Update()
{
time += Time.deltaTime;
if (time > changeTime)
{
value++;
XRSettings.renderViewportScale = values[value % values.Length];
time = 0;
}
}
}

  1. Resolution Note (fix version 2020.1):

    This issue is fixed in Oculus XR Plugin 1.1.5

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