3.2.0-preview 1 labels won't recover after scale is being set to 0

Unity Engine
1

As described in the title, if you set a label’s scale to (0,0,0) and then set it back to something correct, it’s still showing blank squares without other modification (enable/disable for example). This is new to 3.2.0-preview1.

In the frame debugger, it says canvas renderer does not have a texture assigned. I am going to do more debugging and see what’s missing/changed.

2 
if (m_havePropertiesChanged == false)
{
    float lossyScaleY = m_rectTransform.lossyScale.y;
    if (m_previousLossyScaleY != 0 && m_TextProcessingArray[0].unicode != 0)
    {
        float scaleDelta = lossyScaleY / m_previousLossyScale;
        // Only update SDF Scale when lossy scale has changed by more than 20%
        if (scaleDelta < 0.8f || scaleDelta > 1.25f)
        {
            UpdateSDFScale(scaleDelta);
            m_previousLossyScaleY = lossyScaleY;
        }
    }
}

This is the current code in TMPro_UGUI_Private.cs.InternalUpdate()

if (m_havePropertiesChanged == false)
{
    float lossyScaleY = m_rectTransform.lossyScale.y;
    if (lossyScaleY != m_previousLossyScaleY && m_text != string.Empty && m_text != null)
    {
        float scaleDelta = lossyScaleY / m_previousLossyScale;
        UpdateSDFScale(scaleDelta);
        m_previousLossyScaleY = lossyScaleY;
    }
}

And this is the code i think in version we use previously

So when m_previousLossyScaleY being set to 0, there is no way to make UpdateSDFScale called again.

3 
if (m_havePropertiesChanged == false)
{
    float lossyScaleY = m_rectTransform.lossyScale.y;
    if (m_TextProcessingArray[0].unicode != 0)
    {
        if (m_previousLossyScaleY != 0)
        {
            float scaleDelta = lossyScaleY / m_previousLossyScaleY;
            // Only update SDF Scale when lossy scale has changed by more than 20%
            if (scaleDelta < 0.8f || scaleDelta > 1.25f)
            {
                UpdateSDFScale(scaleDelta);
                m_previousLossyScaleY = lossyScaleY;
            }
        }
        else if (lossyScaleY > 0)
        {
            UpdateSDFScale(float.PositiveInfinity);
            m_previousLossyScaleY = lossyScaleY;
        }
        else if (lossyScaleY < 0)
        {
            UpdateSDFScale(float.NegativeInfinity);
            m_previousLossyScaleY = lossyScaleY;
        }
    }
}

Fix the issue by changing it to this

4

Known issue that will be addressed in preview 2.

1 Like
5

Is there a list of known issues somewhere? And also do you have an ETA for preview 2? Great thanks!

I really like the dynamic OS feature but wasn’t too sure we can release with this preview version if it has many issues.

6

This issue is kind of the only regression that has been reported. There are a few reported issues related to the Input Field but those are not specific to the new preview releases. Nothing major reported about the new features from users but a few that I caught (but nothing major).

I will try to get preview 2 released next week. I had a potential preview 2 ready to go but then decided to add support for Ligatures so that pushed it back.