WEBGL_color_buffer_float extension

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2021.

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.

Note: 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 ( Deprecated )

RGB 32-bit floating-point color-renderable format.

ext.FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE_EXT

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ext.UNSIGNED_NORMALIZED_EXT

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Extended methods

This extension extends WebGLRenderingContext.renderbufferStorage():

  • The internalformat parameter now accepts ext.RGBA32F_EXT and ext.RGB32F_EXT ( Deprecated ).

Examples

js
const ext = gl.getExtension("WEBGL_color_buffer_float");

gl.renderbufferStorage(gl.RENDERBUFFER, ext.RGBA32F_EXT, 256, 256);

Specifications

Specification
WebGL WEBGL_color_buffer_float Extension Specification

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
WEBGL_color_buffer_float

Legend

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Full support
Full support

See also