10

enter image description here

I think this effect can be done with Blender grease-pencil.

I understand 3D tracking camera and object.

But how to record the drawing process in Blender?

Community
  • 1
Albatross9
  • 167
  • 5
  • Your question is alredy pritty good. You can even improve on it to edit your question in a way that it fullfills the last criteria of a good question https://blender.stackexchange.com/help/how-to-ask . And accept answers that solved your question. – J.Doe Oct 16 '19 at 07:00

2 Answers2

13

After using the greas pencil to create your drawing, you can use the build modifier to animate the draw-in along the stroke.

draw in effekt grease pencil build modifier

J.Doe
  • 1,329
  • 8
  • 26
6

Yes, the grease pencil objects are fully 3D, so you have to create the drawing, track the camera, render on a transparent background (a sequence of PNG images) and composite them onto your live footage.

enter image description here

You can also create a 3D mesh and use it as surface, to guide your strokes, enabling "surfaces" as stroke placement.

enter image description here

josh sanfelici
  • 26,917
  • 2
  • 20
  • 40