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<p class="MsoNormal">Hi there,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Currently I find a bug in vtkOpenGLProjectedTetrahedraMapper.cxx:line 470,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">void vtkOpenGLProjectedTetrahedraMapper::Render(vtkRenderer *renderer,<o:p></o:p></p>
<p class="MsoNormal"> vtkVolume *volume)<o:p></o:p></p>
<p class="MsoNormal">{<o:p></o:p></p>
<p class="MsoNormal">…<o:p></o:p></p>
<p class="MsoNormal">glTexImage2D(GL_TEXTURE_2D, 0, GL_INTENSITY, TEXRES, TEXRES, 1, GL_RED,<o:p></o:p></p>
<p class="MsoNormal"> GL_FLOAT, texture);<o:p></o:p></p>
<p class="MsoNormal">…<o:p></o:p></p>
<p class="MsoNormal">}<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">According to the opengl spec, the ‘border’ parameter of glTexImage2D must be 0:<o:p></o:p></p>
<p class="MsoNormal"><code><span style="font-size:10.0pt">void</span></code><span class="apple-converted-space"><span style="font-size:10.0pt;font-family:"Courier New""> </span></span><strong><span style="font-size:10.0pt;font-family:"Courier New"">glTexImage2D</span></strong><code><span style="font-size:10.0pt">(</span></code>GLenum<span class="apple-converted-space"> </span><var><span style="font-family:"Verdana","sans-serif"">target</span></var>, GLint<span class="apple-converted-space"> </span><var><span style="font-family:"Verdana","sans-serif"">level</span></var>, GLint<span class="apple-converted-space"> </span><var><span style="font-family:"Verdana","sans-serif"">internalFormat</span></var>, GLsizei<span class="apple-converted-space"> </span><var><span style="font-family:"Verdana","sans-serif"">width</span></var>, GLsizei<span class="apple-converted-space"> </span><var><span style="font-family:"Verdana","sans-serif"">height</span></var>, GLint<span class="apple-converted-space"> </span><var><span style="font-family:"Verdana","sans-serif"">border</span></var>, GLenum<span class="apple-converted-space"> </span><var><span style="font-family:"Verdana","sans-serif"">format</span></var>, GLenum<span class="apple-converted-space"> </span><var><span style="font-family:"Verdana","sans-serif"">type</span></var>, const
GLvoid *<span class="apple-converted-space"> </span><var><span style="font-family:"Verdana","sans-serif"">data</span></var><code><span style="font-size:10.0pt">)</span></code>;<o:p></o:p></p>
<p class="MsoNormal" style="margin-top:11.25pt"><i><span style="font-size:10.0pt;font-family:"Courier New";color:black">border</span></i><span style="font-size:12.0pt;font-family:"Verdana","sans-serif";color:black"><o:p></o:p></span></p>
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<span style="font-size:12.0pt;font-family:"Verdana","sans-serif";color:black">This value must be 0.<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Can anybody tell me how to send the patch to VTK community ?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Best Regards,<o:p></o:p></p>
<p class="MsoNormal">Jin<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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