cljs-webgl.buffers documentation

clear-color-buffer
(clear-color-buffer gl-context red green blue alpha)
Clears the color buffer with specified `red`, `green`, `blue` and `alpha` values.

Relevant OpenGL ES reference pages:

* [glClearColor](http://www.khronos.org/opengles/sdk/docs/man/xhtml/glClearColor.xml)
* [glClear](http://www.khronos.org/opengles/sdk/docs/man/xhtml/glClear.xml)
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clear-depth-buffer
(clear-depth-buffer gl-context depth)
Clears the depth buffer with specified `depth` value.

Relevant OpenGL ES reference pages:

* [glClearDepthf](http://www.khronos.org/opengles/sdk/docs/man/xhtml/glClearDepthf.xml)
* [glClear](http://www.khronos.org/opengles/sdk/docs/man/xhtml/glClear.xml)
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clear-stencil-buffer
(clear-stencil-buffer gl-context index)
Clears the stencil buffer with specified `index` value.

Relevant OpenGL ES reference pages:

* [glClearStencil](http://www.khronos.org/opengles/sdk/docs/man/xhtml/glClearStencil.xml)
* [glClear](http://www.khronos.org/opengles/sdk/docs/man/xhtml/glClear.xml)
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create-buffer
(create-buffer gl-context data target usage & [item-size])
Creates a new buffer with initialized `data`.

`data` must be a typed-array

`target` may be `cljs-webgl.constants.buffer-object/array-buffer` or `cljs-webgl.constants.buffer-object/element-array-buffer`

`usage` may be `cljs-webgl.constants.buffer-object/static-draw` or `cljs-webgl.constants.buffer-object/dynamic-draw`

`item-size` [optional] will set the item size as an attribute on the buffer, and the calculate the number of items accordingly.

Relevant OpenGL ES reference pages:

* [glGenBuffers(Similar to createBuffer)](http://www.khronos.org/opengles/sdk/docs/man/xhtml/glGenBuffers.xml)
* [glBindBuffer](http://www.khronos.org/opengles/sdk/docs/man/xhtml/glBindBuffer.xml)
* [glBufferData](http://www.khronos.org/opengles/sdk/docs/man/xhtml/glBufferData.xml)
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default-capabilities
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draw!
(draw! gl-context & {:keys [shader draw-mode first count attributes uniforms textures element-array capabilities blend-function viewport], :as opts})
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set-attribute
(set-attribute gl-context {:keys [buffer location components-per-vertex type normalized? stride offset]})
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set-capability
(set-capability gl-context capability enabled?)
Enables/disables according to `enabled?` a given server-side GL `capability`

The valid values for `capability` are: `cljs-webgl.constants.capability/blend`,
`cljs-webgl.constants.capability/cull-face`, `cljs-webgl.constants.capability/depth-test`, `cljs-webgl.constants.capability/dither`,
`cljs-webgl.constants.capability/polygon-offset-fill`, `cljs-webgl.constants.capability/sample-alpha-to-coverage`,
`cljs-webgl.constants.capability/sample-coverage`, `cljs-webgl.constants.capability/scissor-test`,
`cljs-webgl.constants.capability/stencil-test`

Relevant OpenGL ES reference pages:

* [glEnable](http://www.khronos.org/opengles/sdk/docs/man/xhtml/glEnable.xml)
* [glDisable](http://www.khronos.org/opengles/sdk/docs/man/xhtml/glDisable.xml)
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set-texture
(set-texture gl-context shader {:keys [texture name texture-unit]})
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set-uniform
(set-uniform gl-context shader {:keys [name type values transpose]})
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set-viewport
(set-viewport gl-context {:keys [x y width height], :as viewport})
Sets `gl-context` viewport according to `viewport` which is expected to have the form:

{:x,
 :y,
 :width,
 :height}

Relevant OpenGL ES reference pages:

* [viewport](http://www.khronos.org/opengles/sdk/docs/man/xhtml/glViewport.xml)
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