Nodes

Odyssey brushes require specific nodes and variables to offer countless possibilities in term of rendering. These nodes will need input or will return values that are also specific to Odyssey.

Structure

To works properly, in addition of specific nodes and variables, Odyssey Brushes bring 6 types of structures. Let’s explain them.

Type	Description
Odyssey Block	An Odyssey Block is a set of pixels made of a Texture 2D (or an array of Texture 2D). It can be subjected to various transformations, such as a resize or a rotation.
Odyssey Color	This structure contains color channels to make a color. An Odyssey Color can be broken into various color models, such as RGBA, CMYK, Lab, HSV and HSL.
Odyssey Font Character	This structure is made of an array of characters to create specific text brushes.
Odyssey Matrix	This structure contains various transformations (rotate, shear, resize, rescale…) and makes the calculation process easier and faster.
Odyssey Pivot	This structure shall be used to modify the pivot of a brush.
Odyssey Rectangle	This structure is an empty block which can be used for instance to crop an Odyssey Block.

Object Type

Type	Description
New Odyssey Brush	To be written
Odyssey Brush Asset Base Object Reference	To be written

Enum

Enums are lists to be used for various purposes, for instance to apply a single setting to various nodes at the same time. They always start with the prefix “E”

Type	Description
EOdyssey Alpha Mode	Gives you the list of all Alpha Modes available in Odyssey. Alpha Modes affect the Alpha Channel of one or several Odyssey Blocks (transparency / opacity, for instance).
EOdyssey Blending Mode	Gives you the list of all Blending Modes available in ILIAD. Blending modes affect the color blend of one or several Odyssey Blocks (multiply, overlay, screen, for instance).
EOdyssey Channel Depth	Gives you the list of all Channel Depths available in ILIAD 8 bits, 16 bits, 32 bits, 32 bits float, 64 bits float.
EOdyssey Color Model	Gives you the list of all Color Models available in ILIAD : RGB(A), HSL(A), HSV(A), CMYK(A), Lab(A) and Grey(A).

You can also create your own personal Enum, which will be explained in a different lesson.

Some types of variables

Along this documentation, you a few types of variables will be often use. Let’s define them:

Type	Description
Float	a digit with comma. In many cases, it is between 0 (null) and 1 (max), like a percentage. For instance, 20% will be written 0.2 and 5% will be written 0.05. Floats are light green.
Integer	a digit without comma. Integers are turquoise.
Boolean	a binary choice yes (1) or no (0). Booleans are red.