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Error with paint curves and drawing with mouse buttons
Open, Confirmed, MediumPublic


System Information

Blender Version
Broken: blender-2.80.0-git.cc600de6695a-windows64 (and probably above)

Short description of error
When using paint curves, they don't draw upon clicking the right mouse button if specified as the button to select with in the preferences. But they do if you set the mouse button to select with to be the left one. So if you have selected the LMB in the preferences then you can draw the paint curve (I don't mean creating the curve) with the LMB, but if you have chosen it to be the RMB then it doesn't work when pressing the RMB, neither does the LMB. (Also, the UI button for drawing the curve in the stroke panel does not work. But you can draw it when you type draw curve in the search panel)

Exact steps for others to reproduce the error
Go to the Sculpting screen layout and create a paint curve on an object (if it helps, I used the the normal Draw brush). Open the Stroke panel in the Properties Editor and set the Stroke Method to Curve. If you have chosen the left mouse button in the Keymap section in the Blender Preferences under Select With: , then everything works fine. You can draw the paint curve on the object by doing a left click after creating it by doing multiple Ctrl-RMB clicks. But if you now set the mouse button with which you want to select to Right, then you can create the paint curve with Ctrl-LMB clicks, but when you try to sculpt/draw the paint curve with either the left mouse button or the right mouse button, none of them work. (And again, if you try to draw the paint curve with the Draw Curve UI button in the Stroke panel, it will also do nothing but turn blue because you clicked on it...)



Event Timeline

Uhm, I didn't mean to mention this, that is just the Blender version (?)

Sebastian Parborg (zeddb) lowered the priority of this task from Needs Triage by Developer to Confirmed, Medium.