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.

Note: This extension is available to both, WebGL1 and WebGL2 contexts. On WebGL 2, it's an alternative to using the EXT_color_buffer_float extension on platforms that support 16-bit floating point render targets but not 32-bit floating point render targets.

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
WebGL EXT_color_buffer_half_float Extension Specification (WebGL EXT_color_buffer_half_float Extension)

Browser compatibility

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`EXT_color_buffer_half_float`	63	17	47 36-47 Not supported on Windows.	No	50	14	63	63	?	46	14	8.0