Web/API/EXT color buffer half float

The EXT_color_buffer_half_float extension is part of the WebGL API and adds the ability to render to 16-bit floating-point color buffers.

WebGL extensions are available using the WebGLRenderingContext.getExtension() method. For more information, see also Using Extensions in the WebGL tutorial.

Availability: This extension is available to WebGL 1 contexts only. For WebGL 2, use the EXT_color_buffer_float extension.

The OES_texture_half_float extension implicitly enables this extension.

Constants

ext.RGBA16F_EXT: RGBA 16-bit floating-point color-renderable format.
ext.RGB16F_EXT: RGB 16-bit floating-point color-renderable format.
ext.FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE_EXT: ?
ext.UNSIGNED_NORMALIZED_EXT: ?

Extended methods

This extension extends WebGLRenderingContext.renderbufferStorage():

The internalformat parameter now accepts ext.RGBA16F_EXT and ext.RGBA16F_EXT.

Examples

var ext = gl.getExtension('EXT_color_buffer_half_float');

gl.renderbufferStorage(gl.RENDERBUFFER, ext.RBGA16F_EXT, 256, 256);

Specifications

Specification	Status	Comment
EXT_color_buffer_half_floatThe definition of 'EXT_color_buffer_half_float' in that specification.	Recommendation	Initial definition.

Browser compatibility

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`EXT_color_buffer_half_float`	Chrome Full support 63	Edge Full support 17	Firefox Full support 47 Full support 47 No support 36 — 47 Notes' Notes' Not supported on Windows.	IE No support No	Opera Full support 50	Safari Full support 14	WebView Android Full support 63	Chrome Android Full support 63	Firefox Android ?	Opera Android Full support 46	Safari iOS Full support 14	Samsung Internet Android Full support 8.0

Legend

Full support: Full support
No support: No support
Compatibility unknown: Compatibility unknown
See implementation notes.': See implementation notes.