What is Grease Pencil in Blender?
The Grease Pencil in Blender is used to draw within the 3D viewport. It can take the drawing information from a mouse or stylus, and put it in 3D space as a collection of vectorised points, called a stroke.
The Grease Pencil mode can be used to make traditional 2D animation, motion graphics or as a storyboard tool.
Strokes are created in Draw Mode, which requires a new keyframe in the animation timeline for the Grease Pencil object. Existing strokes can then be adjusted in Edit Mode and Sculpt Mode. Then you can apply materials, modifiers and lighting, to the strokes.
Animation types:
Frame by frame:
In draw mode, the object needs to be drawn on each keyframe individually, which takes longer and is harder work, but it gives you a lot of control over the animation. Each image played in sequence creates the illusion of animation.
This method uses onion skins to show the previous and next frames at a reduced capacity. Which is extremely helpful in positioning the frame you are drawing. This is a type I will be using.
Object move:
In object mode, you can use the grab tool to move the object to different positions at different time frames. This is useful when the object is simple, but not when there are a lot of moving parts. I will be using this type of animation as well.
Edit move:
In edit mode, you can select which object or points you want to move at certain time frames, the usual scale, rotate and move tools are available.
Rigging:
Another type of animation that I have not had a chance to learn yet. This is where you create a 'skeleton' structure to control 3D objects in animation.
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