/Web APIs

WEBGL_color_buffer_float extension

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.



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

ext.RGB32F_EXT ( Deprecated )

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





Extended methods

This extension extends WebGLRenderingContext.renderbufferStorage():

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


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

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


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
WEBGL_color_buffer_float 63 17 30 No 50 14 63 63 30 46 15 8.0

See also

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