Texture painting stops to work when the angle to the surface you are painting on is to shallow.
Shallow Angle:
Larger Angle
Can i deactivate this ? Or decrease the angle, after that it doesn't work anymore ?
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You can turn off Occlude and Cull and Normal and then you will not have a problem painting at any angle, but that may or may not be what you are after.
answered Mar 13 '18 at 3:55
