Operating system: Linux-4.19.47_1-x86_64-with-glibc2.9 64 Bits
Graphics card: TITAN X (Pascal)/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 430.14
Broken: version: 2.80 (sub 74), branch: blender2.7, commit date: 2019-06-15 22:35, hash: rB87de71a8aaa0
Worked: A week or two before the referenced build.
Short description of error
With a high number of polygons (~1 million or more) having a large selection in edit mode (vert, edge and polygon) lags the viewport rotation.
If nothing is selected, the viewport works smoothly, only when selecting a high number of verts, egdes or polygons does the problem occur.
Exact steps for others to reproduce the error
- Create any polygonal object
- Subdivide it to ~1 million faces
- Select all in Edit Mode
- Rotating viewport lags Blender for a few seconds, lag increases depending on the polycount