cljs-webgl.context documentation

get-canvas
(get-canvas gl-context)
Returns the canvas element from the given WebGL context.

Source
get-context
(get-context canvas-element)(get-context canvas-element context-attributes)
Gets a WebGL context from a canvas element.
`context-attributes` may be a map in the following form:

    {:alpha
     :depth
     :stencil
     :antialias
     :premultiplied-apha
     :preserve-drawing-buffer
     :prefer-low-power-to-high-performance
     :fail-if-major-performance-caveat}
If you don't specify any key, the default value is assumed.

For further information on context creation parameters see [WebGLContextAttributes](https://www.khronos.org/registry/webgl/specs/1.0.2/#WEBGLCONTEXTATTRIBUTES);
Source
get-context-attributes
(get-context-attributes gl-context)
Returns the actual context parameters for a created context. The returned map has the following form:

    {:alpha
     :depth
     :stencil
     :antialias
     :premultiplied-apha
     :preserve-drawing-buffer
     :prefer-low-power-to-high-performance
     :fail-if-major-performance-caveat}

This function is helpful for testing if the requested parameters were satisfied.
Source
get-drawing-buffer-height
(get-drawing-buffer-height gl-context)
Returns the buffer current height.

Source
get-drawing-buffer-width
(get-drawing-buffer-width gl-context)
Returns the buffer current width.

Source
get-extension
(get-extension gl-context extension-name)
Returns the object for the requested extension. The returned value is not wrapped in any ClojureScript construct.

Source
get-supported-extensions
(get-supported-extensions gl-context)
Returns a string sequence containing the name for each supported extension

Source
get-viewport
(get-viewport gl-context)
Returns the current viewport for a given `gl-context` as a map with the form:

{:x,
  :y,
  :width,
  :height}
Source
is-context-lost?
(is-context-lost? gl-context)
Returns whether the context was lost.

See [The Context Lost Event](http://www.khronos.org/registry/webgl/specs/1.0/#CONTEXT_LOST)
Source