Haihua Hu 8a92c66440 gleffects: fix little rectangle that appears at the center of squeeze and tunnel effects ... These two shader will calculate the vector length and use it as denominator. But length could be zero which will cause undefine behaviour. Add protection for this condition https://bugzilla.gnome.org/show_bug.cgi?id=767635		2017-12-09 19:32:20 +00:00
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gl	gleffects: fix little rectangle that appears at the center of squeeze and tunnel effects	2017-12-09 19:32:20 +00:00