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<p class="MsoNormal">Hello,<o:p></o:p></p>
<p class="MsoNormal">I’m trying to allow the user to switch between left handed and right handed coordinate display in my application.<o:p></o:p></p>
<p class="MsoNormal">To do this, I’m simply applying a transform to the camera “ModelViewTransform” that negates the z axis.<o:p></o:p></p>
<p class="MsoNormal">That works fine. My issue is that I’ve done something similar to orient the vtkAxesActor similarly but the lighting is incorrect.<o:p></o:p></p>
<p class="MsoNormal">If I setup the axes as such:<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;color:black">vtkAxesActor axes = new vtkAxesActor();<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;color:black"> vtkTransform lefthanded = new vtkTransform();<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;color:black"> lefthanded.Identity();<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;color:black"> vtkMatrix4x4 matrix = lefthanded.GetMatrix();<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;color:black"> matrix.SetElement(0, 0, -1);<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;color:black"> matrix.SetElement(1, 1, 1);<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;color:black"> axes.SetUserTransform(lefthanded);<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;color:black"> axes.SetShaftTypeToCylinder();<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;color:black"> axes.SetXAxisLabelText("x");<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;color:black"> axes.SetYAxisLabelText("y");<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;color:black"> axes.SetZAxisLabelText("z");<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;color:black"> axes.SetCylinderRadius(.05);<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;color:black"> axes.SetTotalLength(1.5, 1.5, 1.5);<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;color:black">each part of the axis is rendered “black”.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;color:black">I can partially work around this by setting the shaft to render as a line:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;color:black"> axes.<u><span style="background:silver;mso-highlight:silver">SetShaftTypeToLine</span></u>();<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;color:black">but the tips are still black.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;color:black">Is there some setting I’m missing to get the lighting correct here?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;color:black">Gerrick<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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