Struct three_d::core::Context

pub struct Context { /* private fields */ }

Contains the low-level OpenGL/WebGL graphics context as well as other “global” variables. Implements Deref with the low-level graphics context as target, so you can call low-level functionality directly on this struct. Use the context module to get access to low-level constants and structs.

Implementations

impl Context

pub fn from_gl_context(context: Rc<Context>) -> ThreeDResult<Self>

Creates a new mid-level context, used in this core module, from a low-level OpenGL/WebGL context from the context module. This should only be called directly if you are creating a low-level context yourself (ie. not using the features in the window module). Since the content in the context module is just a re-export of glow, you can also call this method with a reference counter to a glow context created using glow and not the re-export in context.

pub fn program(
    &self,
    vertex_shader_source: &str,
    fragment_shader_source: &str,
    callback: impl FnOnce(&Program) -> ThreeDResult<()>
) -> ThreeDResult<()>

Compiles a Program with the given vertex and fragment shader source and stores it for later use. If it has already been created, then it is just returned.

pub fn effect(
    &self,
    fragment_shader_source: &str,
    callback: impl FnOnce(&ImageEffect) -> ThreeDResult<()>
) -> ThreeDResult<()>

Compiles an ImageEffect with the given fragment shader source and stores it for later use. If it has already been created, then it is just returned.

pub fn camera2d(
    &self,
    viewport: Viewport,
    callback: impl FnOnce(&Camera) -> ThreeDResult<()>
) -> ThreeDResult<()>

Returns a camera for viewing 2D content.

impl Context

pub fn new() -> ThreeDResult<Self>

Creates a new headless graphics context (a graphics context that is not associated with any window).

Trait Implementations

impl Clone for Context

fn clone(&self) -> Context

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Deref for Context

type Target = Context

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.