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Instanced meshes broken with Desktop OpenGL

Here is a copy of a bug report I just send.Maybe someone from community might have an idea.

Reproduce : Add foliage of a blueprint with hierarchical instanced mesh.

Result : Some of them will disappear.

Expected : Maybe appear ? And a coffee :-) ?

Description : If you use the Linux editor with OpenGL, if you put a blueprint with hierarchical instanced meshes in the map, some of the instances will disappear. I will join screen shots as attachments. The weird thing is that some parts, a bit smaller and scaled just stopped disappearing, who knows why ? The other weird thing is that if you use ES3 or Vulkan (Desktop), everything looks fine.

Additional Notes : Too bad the editor often crashes and contextual texts are often illegible with Vulkan, because performances look great (1070gtx Nvidia-396) The ground, here, is made of pre-fragmented "slabs".

Screenshot Opengl + SM5


Product Version: UE 4.19
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asked May 23 '18 at 11:51 AM in Bug Reports

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avatar image Jeff A ♦♦ STAFF May 29 '18 at 06:40 PM


We've recently made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue.



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