Yep, the remaining issue seems to be these shader functions:
dFdx()
dFdy()
fwidth()
which are from GL_OES_standard_derivatives, that is not implemented by all
drivers/platforms.
That shader code is not in Mir BTW. This bug no longer has anything to
do with Mir since the first issue was separated into bug 1458689.
We need a fallback (or to avoid uncommon extensions) for the sake of
portability.
** Changed in: mir
Status: Confirmed => Invalid
** Changed in: mir (Ubuntu)
Status: Confirmed => Invalid
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https://bugs.launchpad.net/bugs/1458694
Title:
[vivid-overlay] unity8 fails to start on the emulator
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