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Votes

0

Found in

2019.1.0a10

2019.4

2020.1

2020.1.3f1

2020.2

Issue ID

1273183

Regression

Yes

[Metal] Crash on glEnable when calling glEnable(GL_POINT_SMOOTH) in OnPreRender

Metal

-

Steps to reproduce:
1. Open the attached project ("StrippedScene.zip")
2. Open "SampleScene"
3. Enter Play mode

Reproducible with: 2019.1.0a10, 2019.4.8f1, 2020.1.4f1, 2020.2.0b2
Not reproducible with: 2018.4.23f1, 2019.1.0a9

Notes:
- Doesn't reproduce on OSX with OpenGLCore
- Doesn't reproduce on Windows with DX11, DX12, Vulkan

  1. Response avatar

    Resolution Note:

    You can't expect to lookup glEnable function manually from a system OpenGL library, store the current OpenGL renderer status into a boolean, and then call glEnable without the check in question. Some OpenGL driver implementations might give a free pass on this if there is no OpenGL context set available at all, but don't count on it.

    void OnPreRender()
    {
    if (mIsOpenGL)
    glEnable(GL_VERTEX_PROGRAM_POINT_SIZE);
    glEnable(GL_POINT_SMOOTH);
    }

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