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: ?
ext.UNSIGNED_NORMALIZED_EXT: ?

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

See also