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Hi Chris,
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<div id="divRpF988592" style="direction: ltr;"><font face="Tahoma" size="2" color="#000000"><b>From:</b> osg-users [osg-users-bounces@lists.openscenegraph.org] on behalf of Chris Hanson [xenon@alphapixel.com]</font></div>
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<div id="divRpF988592" style="direction: ltr;"><font face="Tahoma" size="2" color="#000000"><b>Sent:</b> Monday, March 14, 2016 12:09 PM</font></div>
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<div id="divRpF988592" style="direction: ltr;"><font face="Tahoma" size="2" color="#000000"><b>To:</b> OpenSceneGraph Users</font></div>
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<div id="divRpF988592" style="direction: ltr;"><font face="Tahoma" size="2" color="#000000"><b>Subject:</b> Re: [osg-users] Running OSG models on OpenGLES2.0</font></div>
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<div dir="ltr">So, to really help you any further, we'd probably need to see the model and how it renders on desktop and GLES2. Otherwise, it's too non-specific of a question to have a singular answer.
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<div>Remember, desktop FFP GL has a LOT of features, many of which may not be emulated by whatever shader you've attached to make GLES2 work.</div>
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<font face="Times New Roman"><span style="font-size: 16px;">I agree, but some information can not be disclosed here. So, from what I understood so far, if someone like me integrated the OSG layer into some OpenGLES system, there's not much way (examples) to
validate the platform. In that way, I thought I'd be able to isolate problems at least.</span></font></div>
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<div><font face="Times New Roman"><span style="font-size: 16px;">Thanks,</span></font></div>
<div><font face="Times New Roman"><span style="font-size: 16px;">-hyun</span></font></div>
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<div class="gmail_quote">On Mon, Mar 14, 2016 at 12:48 PM, Hyun Kwon <span dir="ltr">
<<a href="mailto:hyun.kwon@xilinx.com" target="_blank">hyun.kwon@xilinx.com</a>></span> wrote:</div>
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<div style="direction:ltr; font-family:Tahoma; color:#000000; font-size:10pt">Hi,
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<div style="direction:ltr"><font face="Tahoma" size="2" color="#000000"><span class=""><b>From:</b> osg-users [<a href="mailto:osg-users-bounces@lists.openscenegraph.org" target="_blank">osg-users-bounces@lists.openscenegraph.org</a>] on behalf of Chris Hanson
[<a href="mailto:xenon@alphapixel.com" target="_blank">xenon@alphapixel.com</a>]</span></font></div>
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<div style="direction:ltr"><font face="Tahoma" size="2" color="#000000"><b>Sent:</b> Monday, March 14, 2016 9:58 AM</font></div>
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<div style="direction:ltr"><font face="Tahoma" size="2" color="#000000"><span class=""><b>To:</b> OpenSceneGraph Users</span></font></div>
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<div style="direction:ltr"><font face="Tahoma" size="2" color="#000000"><span class=""><b>Subject:</b> Re: [osg-users] Running OSG models on OpenGLES2.0</span></font></div>
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<div bgcolor="#FFFFFF">"The fragment language has no default precision qualifier for floating point types. Hence for float, floating</div>
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<div bgcolor="#FFFFFF">point vector and matrix variable declarations, either the declaration must include a precision qualifier or
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<div bgcolor="#FFFFFF">the default float precision must have been previously declared. Similarly, there is no default precision
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<div bgcolor="#FFFFFF">qualifier for any of the image types, or any of the following sampler types in any of the languages:"</div>
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<div bgcolor="#FFFFFF">So basically I always had the luck to have sloppy drivers :-) and one must indeed add the precision qualifiers or define the default precision.
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<div> I think the NVidia drivers play sloppy. Others may be the same way. </div>
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<div>Thanks for the input. Now it comes back to my original question. I've added precision qualifiers to compile shaders, but the models from OpenSceneGraph-Data still don't get rendered correctly (similar to the model that I have). I can run all of those fine
on desktop with OpenGL. Maybe most of those are not OpenGLES2.0 compatible. I guess there's some incompatibility between pieces.</div>
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<div>Thanks,</div>
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<div>-hyun</div>
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<div bgcolor="#FFFFFF"><span><font color="#888888">Sebastian.</font></span></div>
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