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Linux: Rendering tearing problem with opengles 2.0

Other Parts Discussed in Thread: DRA716

Tool/software: Linux

subway.rarI raised a related question before

Now I demenstrate it with a simple opengles demo

--QUESTION1--------------------

Too much triangle will create strange lines in the rendering image,and the more triangle, the more lines.

------------QUESTION2--------------

A special rendering error not hanppens frequently

------code---------------------------

The code mainly draws a plane consists of triangle which fills the whole screen.

The shader is a simple yuv2rgb shader. I used the eglimage instead, the same error as well as no texture shader

 So too much triangle will cause vertical teraing, Is it right?

Triangle_Tearing.rar