Re: Problem with glDepthMask

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On Wed, Jan 20, 2016 at 12:02 PM, Nicolas P. Rougier <
[email protected]> wrote:

> Thanks for your question Ian ! While trying to make a screenshot I found
> the answer.
>
> The rotating cube is displayed partially and it comes worse and worse, as
> if the depth buffer was not cleared.
>
> And it is actually the case. I was not aware that the glClear takes the
> depth mask into account
>
=E2=80=8BI see the problem now. Yeah, glClear counts as a change to the dep=
th
buffer, so it should be affected by the depth mask.

Ian=E2=80=8B

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<div dir=3D"ltr"><div class=3D"gmail_extra">On Wed, Jan 20, 2016 at 12:02 P=
M, Nicolas P. Rougier <span dir=3D"ltr">&lt;<a href=3D"mailto:Nicolas.Rougi=
[email protected]" target=3D"_blank">[email protected]</a>&gt;</span> wrot=
e:<br><div class=3D"gmail_quote"><blockquote class=3D"gmail_quote" style=3D=
"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Thanks for =
your question Ian ! While trying to make a screenshot I found the answer.<b=
r>
<br>
The rotating cube is displayed partially and it comes worse and worse, as i=
f the depth buffer was not cleared.<br>
<br>
And it is actually the case. I was not aware that the glClear takes the dep=
th mask into account<span class=3D"HOEnZb"></span><br></blockquote><div><di=
v class=3D"gmail_default" style=3D"font-family:times new roman,serif;displa=
y:inline">=E2=80=8BI see the problem now. Yeah, glClear counts as a change =
to the depth buffer, so it should be affected by the depth mask.<br></div><=
div class=3D"gmail_default" style=3D"font-family:times new roman,serif;disp=
lay:inline"><br></div><div class=3D"gmail_default" style=3D"font-family:tim=
es new roman,serif;display:inline">Ian=E2=80=8B</div>=C2=A0</div></div></di=
v></div>

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