Change Details

**System Information** Operating system: Windows-7-6.1.7601-SP1 64 Bits Graphics card: GeForce GTX 660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 445.87 **Blender Version** Broken: version: 2.90.0 Alpha, branch: master, commit date: 2020-07-10 20:07, hash: `rBd2b910fafec6` Same issue with blender-2.90.0-731d9f0bfa40-windows64 and 2.83.2 release **Short description of error** 1. Grab brush do not use dyntopo even in dyntopo mode as you know. But it start to work very slow with dyntopo. 2. After I switch off dyntopo back, all brushes start to work very slow. So to reproduce: 1. Zoom to heavy mesh. 2. Check speed of brushes on it. 3. Switch to dyntopo, use grab a little. 4. Switch back, check performance again.

{F8711949}**System Information** Operating system: Windows-7-6.1.7601-SP1 64 Bits Graphics card: GeForce GTX 660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 445.87 **Blender Version** Broken: version: 2.90.0 Alpha, branch: master, commit date: 2020-07-10 20:07, hash: `rBd2b910fafec6` Same issue with blender-2.90.0-731d9f0bfa40-windows64 and 2.83.2 release **Short description of error** 1. Grab brush do not use dyntopo even in dyntopo mode as you know. But it start to work very slow with dyntopo sometimes even without zoom. 2. After I switch off dyntopo back, all brushes start to work very slow. So to reproduce: 1. Zoom in to heavy mesh. 2. Check speed of brushes on it. 3. Switch to dyntopo, use grab a little. 4. Switch back, check performance again. I assume, that problems caused by dynamic mesh load/unload. Please make it optional. It causes low fps, especially on dyntopo zooms.

{F8711949}**System Information** Operating system: Windows-7-6.1.7601-SP1 64 Bits Graphics card: GeForce GTX 660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 445.87 **Blender Version** Broken: version: 2.90.0 Alpha, branch: master, commit date: 2020-07-10 20:07, hash: `rBd2b910fafec6` Same issue with blender-2.90.0-731d9f0bfa40-windows64 and 2.83.2 release **Short description of error** 1. Grab brush do not use dyntopo even in dyntopo mode as you know. But it start to work very slow with dyntopo sometimes even without zoom. 2. After I switch off dyntopo back, all brushes start to work very slow. So to reproduce: 1. Zoom in to heavy mesh. 2. Check speed of brushes on it. 3. Switch to dyntopo, use grab a little. 4. Switch back, check performance again. I assume, that problems caused by dynamic mesh load/unload. Please make it optional. It causes low fps, especially on dyntopo zooms.