DDD Posted August 9, 2021 Share Posted August 9, 2021 Hi everyone, I am having display problems with 3d geometries. In OpenGL mode the extrusion and extrusion along path keeps to show little zig-zag along the edge. How do I trouble shoot this? Thanks! Quote Link to comment
zoomer Posted August 9, 2021 Share Posted August 9, 2021 This looks like your geometry is far from file origin. Quote Link to comment
DDD Posted August 9, 2021 Author Share Posted August 9, 2021 6 minutes ago, zoomer said: This looks like your geometry is far from file origin. Hi Zoomer, not exactly, this geometry is only 750' away from the origin. Quote Link to comment
zoomer Posted August 9, 2021 Share Posted August 9, 2021 Is there maybe any lost element far away ? If you set everything visible, do a Select All and Fit to All Objects ? 1 Quote Link to comment
Pat Stanford Posted August 9, 2021 Share Posted August 9, 2021 Is that in a viewport on a sheet layer? If so, make sure the Layer Resolution is set to higher than the default 72dpi. 1 Quote Link to comment
zoomer Posted August 9, 2021 Share Posted August 9, 2021 Hmmh, and it looks like the problem only happens for that special object (?) Quote Link to comment
Tom W. Posted August 9, 2021 Share Posted August 9, 2021 Does increasing 'Crease Angle' value in OpenGL Options help at all? Quote Link to comment
Pat Stanford Posted August 9, 2021 Share Posted August 9, 2021 And the other OpenGL options. Especially the Detail at the top which is effectively the conversion resolution for curved surfaces. 1 Quote Link to comment
Benson Shaw Posted August 10, 2021 Share Posted August 10, 2021 @DDD if those suggestions do not solve, here is a longshot idea. This kind of display can occur when rendering a superimposed, coincident stack of two or more copies of same object - effect is called "z fighting". Stack can occur if Duplicate-In-Place shortcut is inadvertently invoked, and some other goofs, too. Safest test: Marquee select an area with the problem objects, copy/paste-in-place into a blank new file. Render OGL. Click to select one of the problem objects and delete it. Was there another one? Delete that one, too, etc until whole stack is gone, then undo to restore just one. If this shows there was a stack in the test file, it's safe to delete the dupes in original file and should solve the render problem. If file has lots of coincident duplicates, get them in one action via the Tools menu>Purge command. Adjust the dialog settings to only remove coincident objects. A confirm pane displays before the command runs. Still have the jaggies? Another longshot is the VWX preferences>Display tab>Navigation Graphics - Highest setting is Best Performance, then Good Performance and Compatibility, lowest is Best Compatibility. Choose Best Compatibility (if not already). Render again. If not proprietary post the problem test file here. This should be solvable. -B Quote Link to comment
Kevin McAllister Posted August 10, 2021 Share Posted August 10, 2021 Is the object flat on the ground plane or does it change elevation? If those diagonals are in fact geometry lines, its not a very clean EAP. There may be a cleaner way to achieve the same geometry but Its hard to know without a file and some information about how the object sits in elevation. Kevin 1 Quote Link to comment
DDD Posted August 10, 2021 Author Share Posted August 10, 2021 19 hours ago, zoomer said: Is there maybe any lost element far away ? If you set everything visible, do a Select All and Fit to All Objects ? I did a check and deleted a few objects, now it's looking normal. Thank you. 3 Quote Link to comment
DDD Posted August 10, 2021 Author Share Posted August 10, 2021 19 hours ago, Pat Stanford said: Is that in a viewport on a sheet layer? If so, make sure the Layer Resolution is set to higher than the default 72dpi. Thank you Pat! 1 Quote Link to comment
DDD Posted August 10, 2021 Author Share Posted August 10, 2021 19 hours ago, Tom W. said: Does increasing 'Crease Angle' value in OpenGL Options help at all? Hi Tom, the problem is there are some objects far away form the original center. But still thank you for your help. 1 Quote Link to comment
DDD Posted August 10, 2021 Author Share Posted August 10, 2021 10 hours ago, Benson Shaw said: @DDD if those suggestions do not solve, here is a longshot idea. This kind of display can occur when rendering a superimposed, coincident stack of two or more copies of same object - effect is called "z fighting". Stack can occur if Duplicate-In-Place shortcut is inadvertently invoked, and some other goofs, too. Safest test: Marquee select an area with the problem objects, copy/paste-in-place into a blank new file. Render OGL. Click to select one of the problem objects and delete it. Was there another one? Delete that one, too, etc until whole stack is gone, then undo to restore just one. If this shows there was a stack in the test file, it's safe to delete the dupes in original file and should solve the render problem. If file has lots of coincident duplicates, get them in one action via the Tools menu>Purge command. Adjust the dialog settings to only remove coincident objects. A confirm pane displays before the command runs. Still have the jaggies? Another longshot is the VWX preferences>Display tab>Navigation Graphics - Highest setting is Best Performance, then Good Performance and Compatibility, lowest is Best Compatibility. Choose Best Compatibility (if not already). Render again. If not proprietary post the problem test file here. This should be solvable. -B Hi Benson, good call! I'll definitely pay attention to the overlapping geometry, and thank you very much for your help. 1 Quote Link to comment
DDD Posted August 10, 2021 Author Share Posted August 10, 2021 2 hours ago, Kevin McAllister said: Is the object flat on the ground plane or does it change elevation? If those diagonals are in fact geometry lines, its not a very clean EAP. There may be a cleaner way to achieve the same geometry but Its hard to know without a file and some information about how the object sits in elevation. Kevin Hi Kevin, understood, thank you for your help! 1 Quote Link to comment
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