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List:       mesa3d-users
Subject:    [Mesa-users] osmesa renders artifacts and demo app problem for mesa versions 10.6 - 11.1
From:       Jacek Blumenfeld <jacek.blumenfeld () gmail ! com>
Date:       2015-09-30 16:48:58
Message-ID: CAF=2CiAikop8pUMsEcRCX4HNdLMHrs9mc6-JsQsN8V+20kHwhA () mail ! gmail ! com
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Hi,
I'm quite new to mesa3d and openGL. I'm trying to make off-screen rendering
with osmesa. First I've build mesa 10.5.9 with MSVC 12 and it almost
worked. I'm drawing triangles using glBegig(GL_TRIANGLES) and for osmesa I
received artifacted renders (comapred to freeglut, osmesa renders have some
lines of 0 value - both render examples are attached in this message). I
was using exactly the same algorithm but changed freeglut to osmesa
library.

I've also tried to build new mesa versions 10.6.x and 11.0.1 (also with
MSVC 12.0) but I have problems with running osmesa demo project:
glGetIntegerv(GL_DEPTH_BITS, &z); glGetIntegerv(GL_STENCIL_BITS, &s);
glGetIntegerv(GL_ACCUM_RED_BITS, &a); gives -858993460 values, and
application doesn't render anything (empty buffer).

Do You know what can couse this two problems? Do You need any other
informations?
-- 
Best regards
Jacek Blumenfeld

[Attachment #5 (text/html)]

<div dir="ltr">Hi,<div>I&#39;m quite new to mesa3d and openGL. I&#39;m trying to make \
off-screen rendering with osmesa. First I&#39;ve build mesa 10.5.9 with MSVC 12 and \
it almost worked. I&#39;m drawing triangles using glBegig(GL_TRIANGLES) and for \
osmesa I received artifacted renders (comapred to freeglut, osmesa renders have some \
lines of 0 value - both render examples are attached in this message). I was using \
exactly the same algorithm but changed freeglut to osmesa library.  \
</div><div><br></div><div>I&#39;ve also tried to build new mesa versions 10.6.x and \
11.0.1 (also with MSVC 12.0) but I have problems with running osmesa demo project:  \
<br></div><div><div>glGetIntegerv(GL_DEPTH_BITS, &amp;z); \
glGetIntegerv(GL_STENCIL_BITS, &amp;s); glGetIntegerv(GL_ACCUM_RED_BITS, &amp;a); \
gives  -858993460 values, and application doesn&#39;t render anything (empty \
buffer).</div><div><br></div><div>Do You know what can couse this two problems? Do \
You need any other informations?</div>-- <br><div class="gmail_signature">Best \
regards<br>Jacek Blumenfeld</div> </div></div>

--f46d0444e9e91f1b9f0520f9b6ee--


["osmesa_render.jpg" (image/jpeg)]
["freeglut_render.jpg" (image/jpeg)]

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