Select box and select lasso randomly include backfacing geometry #83897

New Issue

real name · 2020-12-17T14:48:17+01:00

real name commented

2020-12-17 14:48:17 +01:00

System Information
Operating system: Windows-8-6.2.9200-SP0 64 Bits
Graphics card: GeForce GTX 650/PCIe/SSE2 NVIDIA Corporation 4.3.0

Blender Version
Broken: version: 2.83.9, branch: master, commit date: 2020-11-11 06:30, hash: 4abfc0bcd5
Worked: I came to 2.83.9 straight from 2.78 where it worked

Short description of error
Select box and lasso randomly include backfacing faces or occluded edges. The number of mis-selected faces randomly varies. If mis-selection of edge occurs, there is always just one (AFAICT). A less frequent but most probably related problem is that sometimes both tools don't detect a face that has its normal almost parallel to view but is still clearly visible.

Exact steps for others to reproduce the error

In default startup file, select the box and go to face or edge edit mode
box select / lasso the whole cube (but the selection does not have to encompass the whole object for the problem to manifest)
rotate view and check the back of the cube
repeat steps 2 and 3 until the problem occurs

**System Information** Operating system: Windows-8-6.2.9200-SP0 64 Bits Graphics card: GeForce GTX 650/PCIe/SSE2 NVIDIA Corporation 4.3.0 **Blender Version** Broken: version: 2.83.9, branch: master, commit date: 2020-11-11 06:30, hash: `4abfc0bcd5` Worked: I came to 2.83.9 straight from 2.78 where it worked **Short description of error** Select box and lasso randomly include backfacing faces or occluded edges. The number of mis-selected faces randomly varies. If mis-selection of edge occurs, there is always just one (AFAICT). A less frequent but most probably related problem is that sometimes both tools don't detect a face that has its normal almost parallel to view but is still clearly visible. **Exact steps for others to reproduce the error** 1. In default startup file, select the box and go to face or edge edit mode 2. box select / lasso the whole cube (but the selection does not have to encompass the whole object for the problem to manifest) 3. rotate view and check the back of the cube 4. repeat steps 2 and 3 until the problem occurs

real name commented

2020-12-17 14:48:17 +01:00

Added subscriber: @ozzkar

real name changed title from ~~Select box and select lasso randomly include bacfacing geometry~~ to Select box and select lasso randomly include backfacing geometry

2020-12-17 14:51:08 +01:00

Jesse Yurkovich commented

2020-12-18 11:14:25 +01:00

Added subscriber: @deadpin