About Drawing Tools

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Vector Drawing

Bitmap Drawing

Drawing Tools

The two main drawing tools in Storyboard Pro are the Brush tool and the Pencil tool. Depending on the drawing style you want to achieve, you may prefer to work with vector or bitmap layers.

On vector layers, it is possible to draw with pencil lines, textured pencil lines, vector brushes and textured vector brushes. While pencil lines are vector centrelines to which you can add thickness, brush strokes are solid vector shapes filled with a colour, and textured brush strokes are brush strokes filled with a bitmap texture that filter out their colour.

On bitmap layers, you can only draw using solid or textured bitmap brushes. Hence, while vector layers are more flexible because they allow you to easily manipulate and tweak parts of your artwork, they can also accommodate more art styles.

However, if you use a textured brush on a vector layer, your brush strokes will have a bitmap texture. This means that, just like with artwork in bitmap layers, attempting to tweak or resize a textured brush stroke will require Storyboard Pro to resample the texture, which is liable to make it lose picture quality, unless its texture resolution was sufficiently increased before you started drawing.

One pitfall of using textured brushes on vector drawings is that, while bitmap drawings are always made of a single flat canvas, vector brush strokes are kept as separate objects. This means that laying on a lot of textured brush strokes on a vector drawing will require Storyboard Pro to store the texture for each of these strokes, and to composite them together in real time to display your drawing. This can cause texture-heavy vector drawings to be heavier on application performance and in file size than bitmap drawings. This is however the only case where a vector drawing is likely to be heavier than a bitmap drawing.

Though not recommended for sketching, textured pencil lines are a good compromise. Textured pencil lines are lighter and easier to edit. This means that the texture will update with the transformation if you scale or tweak your pencil line. This also means that you are able to change the texture applied to an existing pencil line or to apply a texture to a pencil line that does not already have one. Brush textures are recommended over textured pencil lines when trying to achieve natural-looking brushes.

The following table compares the different approaches to drawing available in Storyboard Pro:

Drawing Tool	Layer Type	Specifics
Solid Pencil	Vector	Advantages: Very light and easy to tweak. Can be manipulated, recoloured and tweaked by the centreline. Can be zoomed in on or scaled up without losing quality. Disadvantages: Not optimized for transparency. Recommended Use: Clean drawings with a solid and uniform outline style.
Textured Pencil	Vector	Advantages: Light and easy to tweak. Can be manipulated, recoloured and tweaked by the centreline. Can be zoomed in on or scaled up without losing quality. Disadvantages: Not optimized for transparency. Not recommended for sketching. Does not look as natural as textured brushes. Recommended Use: For light textured or mixed-style artwork that demands a lot of line manipulation.
Solid Vector Brush	Vector	Advantages: Light file size. Reproduces traditional animation style. Can be manipulated, recoloured and edited by the contour or centreline. Can be zoomed in on or scaled up without losing quality. Disadvantages: Cannot reproduce the look of natural media. Recommended Use: Sketches, clean traditional animation-style drawings.
Textured Vector Brush	Vector	Advantages: Can reproduce the look of natural media. As capable as textured bitmap brushes, but can be manipulated, edited and recoloured like solid vector brushes. Disadvantages: Overlapping brush strokes can make the drawing heavy on application performance and file sizes. Brush strokes of different colours cannot be flattened together. Tweaking, scaling up or zooming in on artwork is liable to make it lose texture quality. Recommended Use: For light bitmap-style textured artwork or mixed-style artwork.
Textured Bitmap Brush	Bitmap	Advantages: Can reproduce the look of natural media. Better performance and lighter file size than texture-heavy vector artwork. Can be edited pixel by pixel. Disadvantages: Brush strokes are always flattened together and cannot be modified individually. Can only be drawn or erased upon. Scaling up or zooming in on artwork is liable to make it lose picture quality. Recommended Use: Texture-heavy bitmap artwork.

Here are the drawing tools available in Storyboard Pro, followed by the types of layer on which they are supported. If you are editing a vector layer, then all of the tools are available to you. If you are drawing on a bitmap layer, some tools are not available. When tools are not available, they are grayed out in the Tools toolbar.

Icon	Tool Name	Vector Layer	Bitmap Layer
	Select	✓	✓
	Select by Colour	✓
	Cutter	✓	✓
	Contour Editor	✓
	Centerline Editor	✓
	Perspective	✓
	Edit Gradient/Texture	✓
	Brush	✓	✓
	Pencil	✓
	Stamp	✓
	Eraser	✓	✓
	Text	✓	✓
	Line	✓	✓
	Rectangle	✓	✓
	Ellipse	✓	✓
	Polyline	✓
	Paint	✓	✓
	Paint Unpainted	✓	✓
	Unpaint	✓	✓
	Close Gap	✓
	Colour Eyedropper	✓	✓
	Pencil Texture Eyedropper	✓

Each drawing tool has a series of options to customize its behaviour and drawing style. When you select a tool, the Tool Properties view displays the properties of the currently selected tool, where you can configure your drawing tool's behavior and style, if applicable.