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Question by DanOrgan · Oct 11, 2019 at 10:07 AM · webgl resolution fullscreen

Upscaling in fullscreen mode in WebGL build. How to disable it?

Hi! I am getting an upscale image when running my WebGL build on mobile device or using desktop Chrome browser with mobile emulator mode.

It is strange, but this upscale effect appears only on mobile browsers, on desktop everything looks fine.

Also, I am getting an error message in browser console when changing to fullscreen:

WebGL: INVALID_OPERATION: drawBuffers: BACK or NONE

How to fix it? I've already tried:

1) Switching from WebGL 2.0 to WebGL 1.0

2) Switching color space (linear/gamma).

3) Disabling MSAA.

4) Changing default canvas resolution.

Example: alt text

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