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Grease Pencil (GP) not working on Video Sequencer Editor (VSE)
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System Information
Gigabyte GA-970-DS3P / AMD Athlon II x3 425 2.7GHz / Kingston 16GB DDR3 1333MHz / NVIDIA GeForce GTX 550 Ti (2GB)
Linux Mint 17.3 64-bit Cinnamon

Blender Version
Broken: 2.77a abf6f08
Worked: 2.76b f337fea

Short description of error
GP with strange behaviors on VSE:

  • pressing D and trying to freehand draw does not work;
  • pressing Ctrl+D to draw straight lines does work;
  • in Blender 2.78 (4bb1e22), changing the Active Brush (under "GP Settings" section) to anything, then pressing Ctrl+D to draw straight lines, locks the cursor to the drawing mode (until you press Esc);

Exact steps for others to reproduce the error

  1. open VSE and load any strip on the timeline (for simplicity, just Add > Effect > Color stip); (Actually there is no need to load any strip to use GP on VSE.)
  2. enable GP, add new GP layer, then hold [D] or [Ctrl+D] and try to draw anything;



Event Timeline

I cannot reproduce the error on 2.78a and I can draw pressing D in VSE using your file. I'm working in Windows 10 64bits.

About the continuous drawing if you release D in 2.78, this is not a bug, this is how works with GPv2. If you release the D key before release the mouse button, the continuous drawing is enabled by default.

Hi, Antonio!

Can you reproduce the error using 2.77a?

About Continuous Drawing in 2.78, if it is just a default setting, should be ok, but where is this option? (For GP on 3D Viewport Editor, it's right there on the Toolshelf [T], under the GP tab - but that doesn't work for the GP on the VSE.)

Hi @Ricardo Roehe (phoinx)

The continuous drawing option is not visible in VSE, but you can disable it with ESC key. If you keep your D key pressed while drawing, the continuous drawing will not be enabled.

Maybe, we can think to include this option in the UI in a future patch, but not sure if this will change for next 2.80 version.

About 2.77a, this version has been replaced by 2.78 and the new version has a lot of changes in GP, so we cannot support this version (2.77a) anymore.

Sorry, my mistake: I have tested and the continuous drawing is enabled always in VSE by default.

Bastien Montagne (mont29) lowered the priority of this task from Needs Triage by Developer to Normal.

As this is not a bug and the continuous drawing is working as expected, we can close this report.

After you enabled the continuous in VSE releasing D key before release the LMB, the next time you press D, the continuous drawing will be activated.

Maybe we could add this option in the properties panel, but as the way continuous drawing works will be rethink in the 2.8 UI workflow redesign, we will keep as today.

Hi, @Antonio Vazquez (antoniov) .

You wrote you tested this on Windows, but how about Linux?

The main problem here is not the "Continuous Drawing" feature, but the basic function of Grease Pencil: drawing when pressing the [D] key.
That way, it doesn't work as expected with 2.77a and 2.78: the [D] key does nothing.
But with 2.76b (f337fea) it works as expected.

Did you check if the stroke is working but not visible? Be sure to change the palette color (not tint color at layer level).

I cannot test in Linux, so we need someone with this OS to make a test.

Yes, I double checked stroke visibility and colors.

Ran some tests here:

  • I had access to a laptop running Windows 10 64-bit. That + Blender 2.78a: GP worked fine;
  • My laptops are too old, so no OpenGL 2.1 available. Mint 32-bit + Blender 2.76b: GP worked fine.

So, we still need someone with Linux (both 32 and 64-bit?) to test 2.78?

I just tried it on the released 2.78 (not 2.78a) and the somewhat-newer build I have been hacking on, both work the same - drawing by pressing D and clicking creates strokes, and if I let go of D before LMB then I can keep drawing new strokes with the mouse.

Linux x64 (fedora 23).