<div dir="ltr"><div><div><div>Hello,<br><br>I've installed PV 4.3 on a few PCs, all of them running Win 7 64-bit. What I've found is that volume rendering, curiously, works on some of them and fails on others. The error messages I got look like this:<br>========================================= <br><span style="font-family:'Courier';font-size:8.25pt;color:rgb(128,0,0)">ERROR: In C:\DBD\pvs-x64\paraview\src\paraview\VTK\Rendering\VolumeOpenGL\vtkOpenGLProjectedTetrahedraMapper.cxx, line 188</span>
<p style="margin:0px;text-indent:0px"><span style="font-family:'Courier';font-size:8.25pt;color:rgb(128,0,0)">vtkOpenGLProjectedTetrahedraMapper (0000000013AB80B0): The required extensions are not supported.</span></p>
<p style="margin:0px;text-indent:0px;font-family:'Courier';font-size:8.25pt;color:rgb(128,0,0)"><br></p>
<p style="margin:0px;text-indent:0px;font-family:'Courier';font-size:8.25pt;color:rgb(128,0,0)"><br></p>
<p style="margin:0px;text-indent:0px"><span style="font-family:'Courier';font-size:8.25pt;color:rgb(0,0,0)">Warning: In C:\DBD\pvs-x64\paraview\src\paraview\VTK\Rendering\OpenGL\vtkOpenGLExtensionManager.cxx, line 781</span></p>
<p style="margin:0px;text-indent:0px"><span style="font-family:'Courier';font-size:8.25pt;color:rgb(0,0,0)">vtkOpenGLExtensionManager (0000000013567D60): Attempting to load GL_ARB_multitexture, which is not supported.</span></p>
<p style="margin:0px;text-indent:0px;font-family:'Courier';font-size:8.25pt;color:rgb(0,0,0)"><br></p>
<p style="margin:0px;text-indent:0px;font-family:'Courier';font-size:8.25pt;color:rgb(0,0,0)"><br></p>
<p style="margin:0px;text-indent:0px"><span style="font-family:'Courier';font-size:8.25pt;color:rgb(128,0,0)">ERROR: In C:\DBD\pvs-x64\paraview\src\paraview\VTK\Rendering\OpenGL\vtkOpenGLExtensionManager.cxx, line 787</span></p>
<p style="margin:0px;text-indent:0px"><span style="font-family:'Courier';font-size:8.25pt;color:rgb(128,0,0)">vtkOpenGLExtensionManager (0000000013567D60): Extension GL_ARB_multitexture could not be loaded.</span></p>
<p style="margin:0px;text-indent:0px;font-family:'Courier';font-size:8.25pt;color:rgb(128,0,0)">===============================================<br></p><br></div>This seems to only happen to the relatively old PCs (~ 4 or 5 years old). For example one of them has graphics card of ATI Radeon HD 3450 (Microsoft Corporation WDDM 1.1), driver version 7.14.10.0018; another laptop has Intel HD graphics, driver version 8.15.10.2559. - I'm wondering if these are considered insufficient for volume rendering to work with PV 4.3.<br><br></div><div>More curiously, volume rendering seems to run OK with PV 4.2 on these machines.<br><br></div><div>Thanks,<br><br></div><div>-Ruq<br></div></div></div>