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_float
The definition of 'EXT_color_buffer_half_float' in that specification.
Recommendation Initial definition.

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic Support ? No30.0 ? ? ?
FeatureAndroidChrome for AndroidEdge mobileFirefox for AndroidIE mobileOpera AndroidiOS Safari
Basic Support ? ? No ? ? ? ?

See also

Document Tags and Contributors

 Contributors to this page: fscholz, nmve, teoli
 Last updated by: fscholz,