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<p>Hi everyone,</p>
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<p>I am trying to render a polydata in a QVTKOpenGLWidget with thick lines (actor property line width) in conjunction with my own shader code. Since we switched from QVTKWidget to QVTKOpenGLWidget this results in black lines (no color and/or lighting). Everything
works fine if the line with is 1.0. For line width > 1.0, the shader seems to do nothing.</p>
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<p>Shader code is attached, as well as two images of depicting the issue.</p>
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<p>Any help is much appreciated!</p>
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<p>Peter <br>
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