Why is it that blender is terribly slow when we are in edit mode. When you jump into a mesh the first time everything is selected, with dense meshes my hole system becomes non responsive while i dont see the CPU boost to the max.
I know outline selection can help, but are there more tips and tricks to get it faster.
It also seems to load each texture multiple times if a lot of meshes have the same texture. It feels like its doing a reload for each texture some how.
When i jump for instance from UV edit + viewport (edit mode) to viewport only and back, each time it takes quite a while to load or be responsive again.
I would like to know how to do this too… Even if you hide parts of the mesh when editing, the performance is still really bad on dense meshes… Can make working on detailed models such as terrain really daunting.
It would be good if a distance based culling was available as an option… so that only vertices that are visable and within a specified distance from the viewport camera are displayed and available to edit, the rest hidden… But i don’t know enough about coding or blenders internals to know whether something like that is even possible… Would really help when editing high poly models such as characters or terrain…
It would be good if a distance based culling was available as an option… so that only vertices that are visable and within a specified distance from the viewport camera are displayed and available to edit… But i don’t know enough about coding or blenders internals to know whether something like that is even possible… Would really help when editing high poly models such as characters or terrain…
Well you can with camera clipping, see properties panel>view>clipping.
You can set the near and far clipping of the camera, not sure if this also helps speed up the viewport though.
Below ive got 2 screengrabs with one set it to 5m and the other 15m
Well first it was one mesh, the bark, leaves. I then split these in seperate meshes to get it to speed up a bit.
The complete scene is 1.817.997 verts but a one string of leaves is 290k verts. When im just in modeling layout and then go in edit mode it’s okay. The issue when i go into UV layout and 3d viewport in edit mode.
Even going to the settings then is a hell. But everything outside Blender doesnt respond as well. Most be something with the videocard orso, CPU is near the bottom.
Perhaps i should test some settings in the preferences???
may be clear the history tracking in user preferences might help
You mean the undo’s right? Ive got this setup quite high 265 actually and also global
I knew about the vieport view clipping option, but as far as i know it doesnt help the performance at all.
I get the same performance drops as you when dealing with high poly assets like scanned models etc. Sometimes blender will become unresponsive for minutes at a time when i try simple things like unwrapping small sections of the mesh (Even as low as 2,000 verts at a time can lag when the scene has over 1,000,000 verts) sometimes even trying to switch back into object mode can lag me out badly.
If you want, you could try moving objects that you are not working with to a seperate (Hidden) layer. I find that this increases performance for me, sometimes i even seperate a big mesh into little parts and work on each individually in different layers… Only combining them at the very end of the process for rendering.
I changed the texture to a jpg, it was a tranps PNG also checked ‘GPU mipmap generation’. It seems Blender is a bit faster now with the meshes and selections. I dont see that freeze down now, but im not sure what helped/ resolved it now.
Hi. I really do not know if there are plans to improve the Edit Mode performance in Blender 2.8. They talk much about OpenGL and GPU, but it seems that Edit Mode is more CPU related stuff:
the reason your cpu doesnt max out is due to it maxing out only one core, most computers have 4-8. most programs cant use more then one core because of the fact the information is time sensitive, and there is no way to fix that.
i believe your right about edit mode being CPU, as it has to process each vertex so it can be manipulated. where as in object mode, it just has to sit there and look all pretty, which is the GPU’s job.
i believe efficiency improvements are in work for the viewport, but it might not be till 2.8.
Yeah i read something in a post, there busy on it. I dont understand why they use just 1 core for such thing, i mean edit mode is quite a important mode. WHy did they never give it a overhaul???
265 actually and also global