WebGL vertex shader gl_PointSize ignored when using gl.drawElements

Fixed Issue #7447870


Tarek S.
May 5, 2016
This issue is public.
Found in
  • Microsoft Edge
  • Internet Explorer
Reported by 1 person

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Steps to reproduce

Both IE 11 and Edge ignore values assigned to the WebGL vertex shader’s gl_PointSize variable when using gl.drawElements. When using gl.drawArrays, the points are rendered correctly.

I created a minimal example showing the issue here: http://tsherif.github.io/ie-edge-pointsize-bug/

The two canvases should render identically, but the one on the right, which is drawn with gl.drawElements, ignores the fact that gl_PointSize was set to 10.

Browser versions used:
Edge 25.10586.0.0
IE 11.212.10586.0


Comments and activity

  • Microsoft Edge Team

    Changed Assigned To to “Brad E.”

    Changed Status to “Fixed”

  • Hello,

    This has been fixed in the latest internal builds. I have attached a screenshot showing the results of my testing in build 38.14339.1000.  Since this has been fixed the item will be closed out to reflect this. We welcome any future feedback you have for Edge.

    All the best,
    The MS Edge Team

  • Please also note that IE feature bugs are not being worked on any longer unless they are security related. 

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