Raster Tools

Here are the Tools available when using Raster Layers:

Tool

Description

../../_images/raster-penbrush.png

Penbrush that uses Odyssey Brushes to draw strokes on the canvas.

../../_images/raster-transform.png

Tool to select an area then transform it.

../../_images/raster-shape.png

To add 1-pixel large shapes, to be filled or not.

../../_images/raster-bucket.png

Paint Bucket to fill in shapes drawn on the canvas.

../../_images/raster-eyedropper.png

To pick up a color from the canvas.


Paintbrush

Using the Penbrush will display all the following options in the panel Tool Options:

../../_images/Paintbrush_optiontool.png

Shape

Selected Shape

The Dropdown menu will allow you to select a drawing shape: frehand, line, rectangle, polygon, ellipse and bezier. The shape is then associated with the chosen Odyssey Brush.

../../_images/raster-penbrush-shapes.gif

Uniform

The option Uniform will be used with the follwing shapes:

  • Line: to draw lines at 0° or 90° degrees.

  • Rectangle: to draw squares.

  • Polygon: to draw polygon shapes with lines at 0° or 90°.

  • Ellipse: to draw circles.

Note

With the shape polygon, use Enter to confirm the shape. You can also use Shift to toggle the Uniform boolean on and off.

Interpolation

Step

Brushes are made of stamps and a stroke is a continuous line of stamps. Step is the distance between two stamps.(Example below shows various steps : 25, 15, 0)

../../_images/interface-strokeoptions-step.png

Adaptative Step

  • Size Adaptative Unticked

If the option is unchecked, step will keep the same value in pixels.

../../_images/interface-strokeoptions-step-sizeadaptative-unticked.png

(Step : 30 | Size : 50px - 100px - 200px)

  • Size Adaptative Ticked

If the option is checked, the Step value will be in %. Your brush step will be calculated that way: Brush Size * Step %. So, if your Brush is 50 pixels and your Step is 10%, the gap between two stamps will be of 5 pixels.

../../_images/interface-strokeoptions-step-sizeadaptative-ticked.png

(Step : 30 | Size : 50px - 100px - 200px)

Interpolation Type

Calculate the best way to display a stroke, based on information sent by your mouse / graphic tablet.

Smoothing

  • Method: “Average” will calculate the average of your steps to smooth the line. “Pull” will make your edges sharper.

  • Strength: The higher, the stronger the Method used.

Smooth Method Average:

../../_images/interface-strokeoptions-smoothing-strength.gif

Smooth Method Pull:

../../_images/raster-smoothing-pull.gif
  • Real time: It will smooth the stroke in real-time if enabled. If disabled, the smooth is applied when you drop your stylus.

  • Catch up: It will catch up the cursor as long as stylus / mouse left button is down.

../../_images/interface-strokeoptions-smoothing-catchup.gif

Blending

Eraser Mode

This boolean toggles an eraser mode: it keeps all of the specifications of your current used brush and apply it as an eraser. The eraser is a toggle to activate with E. The eraser can also be found in the Top Bar, with this icon:

Icon

Description

../../_images/interface-tools-eraser.png

Erase mode off

../../_images/interface-tools-eraseron.png

Erase mode on

Blending Mode

This mode is used to blend pixels on the canvas with pixels applied with your Odyssey Brush.

Example

Blending Mode

../../_images/interface-top-bar-blend-normal.png

Normal Blend Mode

../../_images/interface-top-bar-blend-multiply.png

Multiply Blend Mode

../../_images/interface-top-bar-blend-add.png

Add Blend Mode

Alpha Mode

This mode affects the Alpha channel of your brush (which means the opacity / transparency of the stamp used in your brush) and gives it a specific property.

Example

Alpha Mode

../../_images/interface-top-bar-alpha-normal.png

Normal Alpha Mode

../../_images/interface-top-bar-alpha-erase.png

Erase Alpha Mode

../../_images/interface-top-bar-alpha-back.png

Back Alpha Mode

Opacity

Opacity is the global transparency limit within the same stroke. Its value is a % (from 1 to 100). With a low Opacity, if you paint at the same place with the exact same stroke, the line will not be more opaque.

Opacity 25%:

../../_images/interface-top-bar-opacity-sample.png

Opacity shall not be confused with Flow, which is another option available in the Top Bar. With a low Flow (whose the value also is a % between 1 and 100), a same stroke paint at the same place will get more and more opaque.

Flow 25%:

../../_images/interface-top-bar-flow-sample.png

If Opacity does not need to be connected to your stamp, this is not the case of Flow. Make sure the nodes “Get Flow” is connected to your stamp (see the Odyssey Brush section).


Select & Transform Tool

Tool panel options

../../_images/raster-transform-options.png

This tool is made to select a part of a drawing, then transform it.

  • Selection Shape: choose between freehand, rectangle and ellipse.

  • Constrain: choose a constrain as a rectangle or no constrain at all.

  • Uniform: to force the selection to be square or a circle instead of a rectangle or an ellipse.

Transform HUD

  1. Select an area from your layer.

  2. Click on it and start moving to display the HUD.

  3. The red squares can be used to resize the selection.

  4. Place the cursor out of the selected zone to rotate the shape.

  5. You can also move the pivot in the center to affect the rotation.

  6. Use Enter to confirm your ation or Escape to cancel it.

../../_images/raster-select-move.gif

Shape Tool

This tool is used to paint 1 pixel large shapes, that can be filled or not.

../../_images/raster-shape-options.png

Shape

  • Selected Shape: in the dropdown menu, choose between line, rectangle, polygon, ellipse and bezier.

  • Precision: in the dropdown menu, choose between Raw (aliased rendering), AntiAliased and SubPixel (better results, but slower)

  • Filled: fill the shape with a color chosent in the a Color Modifier Panel.

  • Uniform: turn rectangles into squares, ellipses into circle, and draw only lines of 0° and 90° with the shapes line and polygon.

Blending

Works exactly like the Penbrush Tool’s Blending options.


Raster Paint Bucket Tool

This tool will apply a color chosen in Color Wheel or Color Selector, within a shape (or the whole layer if it’s empty). If the Alpha channel of the layer is locked, the Raster Paint Bucket Tool will be sensitive.

../../_images/raster-bucket-options.png

Source

In this dropdown menu, you can select between:

  • Current Layer: Fill only depending on the content of the current Layer.

  • Foreground Layer: Fill only depending on the content of the Layers above the current one.

  • Backgroud Layer: Fill only depending on the content of the Layer under the current one.

  • All Layers: Fill taking in account everything visible on the canvas.

In the example below, the current layer is the one with the freehand shape. The foreground Layer contains a rectangle. The background Layer contains an ellipse.

../../_images/raster-bucket-source-base.png

Example

Source

../../_images/raster-bucket-source-current.png

Current Layer

../../_images/raster-bucket-source-foreground.png

Foreground Layers

../../_images/raster-bucket-source-background.png

Background Layers

../../_images/raster-bucket-source-all.png

All Layers

Tolerance

Color Tolerance Source

This setting allow you to select the type of tolerance to be used as a limit for the Paint Bucket.

  • Color: tolerance is only based on the colors detected from the Layers used as source.

  • Transparency: tolerance is only based on the nuances of opacity detected from the Layers used as source.

  • Color and Transparency: tolerance is based on the colors and nuances of opacity detected from the Layers used as source.

  • Luminosity: tolerance is based on the luminosity (how close the color is to white) detected from the Layers used as a source.

Color Tolerance

Color Tolerance is used to tolerate more or less subtle levels of opacity, color or luminosity (depending on what you chose inthe Color Tolerance Source), from Layers used as source. In the table below, you will see 3 circles made of different opacities, using the Transparency mode. Changing the Color Tolerance value will expand the filling.

Example

Tolerance value

../../_images/fill-tolerance-0.png

0

../../_images/fill-tolerance-50.png

50

../../_images/fill-tolerance-150.png

150

If the Color Tolerance equals 255, it will fill the entire layer.

Since the Bucket Fill Tool is Alpha sensitive, make sure the right options are activated.

Example

Tolerance value

Alpha Lock

../../_images/fill-tolerance-0-alpha-off.png

0

Off

../../_images/fill-tolerance-0-alpha-on.png

0

On

../../_images/fill-tolerance-255-alpha-off.png

255

Off

../../_images/fill-tolerance-255-alpha-on.png

255

On

Expansion

Expands the flood fill beyond the limits defined with the tolerance settings.

Example

Expansion value (pixels)

../../_images/raster-bucket-expansion-0.png

0

../../_images/raster-bucket-expansion-3.png

3

../../_images/raster-bucket-expansion-15.png

15

Gap Tolerance

Ignore gaps in the shape. In the example below, the shape is filled is applied at the top-left corner.

Example

Gap value (pixels)

../../_images/raster-bucket-gap-0.png

0

../../_images/raster-bucket-gap-2.png

2

../../_images/raster-bucket-gap-5.png

5

Blending

Works exactly like the Penbrush Tool’s Blending options.


Eye Dropper

This tool can be used to pick a color from the canvas. It also works in a 3D context, on the current Texture or Animation only.