Web/API/WEBGL color buffer float

The WEBGL_color_buffer_float extension is part of the WebGL API and adds the ability to render to 32-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_float extension implicitly enables this extension.

Constants

ext.RGBA32F_EXT: RGBA 32-bit floating-point color-renderable format.
ext.RGB32F_EXT ( ' ): RGB 32-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.RGBA32F_EXT and ext.RGB32F_EXT ( ' ).

Examples

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

gl.renderbufferStorage(gl.RENDERBUFFER, ext.RBGA32F_EXT, 256, 256);

Specifications

Specification	Status	Comment
WEBGL_color_buffer_floatThe definition of 'WEBGL_color_buffer_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
`WEBGL_color_buffer_float`	Chrome Full support Yes	Edge Full support 17	Firefox Full support 30	IE ?	Opera Full support Yes	Safari ?	WebView Android Full support Yes	Chrome Android Full support Yes	Firefox Android ?	Opera Android Full support Yes	Safari iOS ?	Samsung Internet Android Full support Yes
`RGB32F_EXT` constant	Chrome No support No	Edge No support No	Firefox Full support 30	IE ?	Opera No support No	Safari ?	WebView Android No support No	Chrome Android No support No	Firefox Android ?	Opera Android No support No	Safari iOS ?	Samsung Internet Android No support No

Legend

Full support: Full support
No support: No support
Compatibility unknown: Compatibility unknown