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

Browser compatibility

Feature Chrome Edge Firefox Internet Explorer Opera Safari Servo
Basic Support??30.0????
RGB32F_EXT??30.0????
Feature Android Chrome for Android Edge Mobile Firefox for Android IE Mobile Opera Mobile Safari Mobile
Basic Support???????
RGB32F_EXT???????

See also

Document Tags and Contributors

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