Glossary

Term	Meaning
Addon	A package with Java code, described by addon.properties. It can also contain assets, shader snippets and Lua.
Resource Pack	A package with assets only (models, tiles, sounds, data), described by pack.properties. It has no Java and no shader code.
Shaderpack	A package with GLSL files and their options, described by pack.properties. It has no Java. It changes how Viewpoint draws the world.
Package	An addon, a resource pack or a Shaderpack.
Base	The pack that a Shaderpack builds on, named by base=.
Encoded id	An id with . and - written as _. It is used in settings keys and in GLSL names.
Descriptor	The file that describes a package: addon.properties or pack.properties.
Hook	A declaration in your jar that connects a handler to a game method. Viewpoint installs it.
Handler	Your public static method that Viewpoint runs before or after the hooked game method.
Kind	What a handler can do: OBSERVE, ARGS, RETURN or SKIP.
Permission	A service that an addon asks for in permissions: hooks, files, downloads, lua, camera, combat, models, shaders or draw.
Label	The result of Viewpoint’s automatic check, on the card: Normal, Amber or Red.
Lua line	The last line of each label. It tells if the package has Lua. Viewpoint does not check Lua.
Shader line	A line of a card that says that the package has shader code. Viewpoint checks its size and form, not what it computes.
Export	A Java function of an addon that the Lua of any mod can call.
Service	An object that an addon publishes under an id, so that other addons can use it.
Camera layer	A small change that an addon adds to the camera. Many layers can be active together.
Claim	A right that only one addon at a time can hold, for example the camera, the cursor or the reticle. The addon nearer the top of the Active column wins.
Provider	An object that an addon gives to Viewpoint to choose the model of a world object or of a character.
Shader value	A number that an addon sets, and that shader code reads as uAddon_<encoded id>_<name>.
Snippet	A small piece of GLSL that an addon adds at a named point of a shader.
Draw callback	A function of an addon that Viewpoint calls at a named point of a frame, so that the addon can draw.
Internals list	The members of Viewpoint outside viewpoint.api that an addon can use or hook.
Consent	The player’s acceptance of one version of one package. An update that asks for more needs consent again.
Card	The row that shows one package in the settings window.
Active column	The list of the packages that are on. The package nearer the top wins.
Safe point	A time when Viewpoint can install and remove hooks: the main menu, a loading screen, or a paused single-player game.
Registration	An object that the API gives you for a listener or a callback. Viewpoint closes it when the addon goes off.
Legacy	A flag for an older Viewpoint model pack. It is a resource pack.
Unmanaged	A flag for a mod that loads its Java through ZombieBuddy (javaJarFile). Viewpoint does not control it.
Gone	A member of Viewpoint that a release removed. An addon that uses it shows Needs an update.
Suspended	The state of an addon that Viewpoint stopped for the session, after an error or on a server that does not list it.
Pool	A part of memory with a maximum size, for one kind of asset.