<div dir="ltr">The only bit of extra setup that vtkTextActor requires is that the vtkRenderingFreeType module needs to be linked, but it should print out something like "Failed getting the TextRenderer instance!" if that's not done, and vtkAlgorithm::SetInputDataInternal shouldn't be a part of the stack.<br><br>What does the exception say? Can you provide a more detailed backtrace?</div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Dec 15, 2017 at 5:10 PM, Kevin Lee <span dir="ltr"><<a href="mailto:kevin.lee@emiservices.com" target="_blank">kevin.lee@emiservices.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-US" link="blue" vlink="purple"><div class="m_-1861866869117368958WordSection1"><p class="m_-1861866869117368958MsoPlainText">I am using VTK 8.0. When I call the New member function of either vtkOpenGLTextActor or vtkTextActor, my program throws an exception. The exception occurs in:<u></u><u></u></p><p class="m_-1861866869117368958MsoPlainText">vtkCommonExecutionModel-8.0.<wbr>dll!vtkAlgorithm::<wbr>SetInputDataInternal(int port, vtkDataObject *input) Line 949<u></u><u></u></p><p class="m_-1861866869117368958MsoPlainText"><u></u> <u></u></p><p class="m_-1861866869117368958MsoPlainText">I have no problems instantiating a vtkOpenGLActor object. Are there special setup requirements that must be in place before creating a text actor?<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p></div></div><br>______________________________<wbr>_________________<br>
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