Web/API/OES texture float

The OES_texture_float extension is part of the WebGL API and exposes floating-point pixel types for textures.

WebGL extensions are available using the WebGLRenderingContext.getExtension() method. For more information, see also Using Extensions in the WebGL tutorial.

Availability: This extension is only available to WebGL1 contexts. In WebGL2, the functionality of this extension is available on the WebGL2 context by default.

Extended methods

This extension extends WebGLRenderingContext.texImage2D() and WebGLRenderingContext.texSubImage2D():

The type parameter now accepts gl.FLOAT.
The pixels parameter now accepts an ArrayBufferView of type Float32Array.

Limitation: Linear filtering

Linear filtering on floating-point textures is not allowed with this extension. If you set the magnification or minification filter in the WebGLRenderingContext.texParameter() method to one of gl.LINEAR, gl.LINEAR_MIPMAP_NEAREST, gl.NEAREST_MIPMAP_LINEAR, or gl.LINEAR_MIPMAP_LINEAR, and use floating-point textures, the texture will be marked as incomplete.

To use linear filtering on floating-point textures, enable the OES_texture_float_linear extension in addition to this extension.

Floating-point color buffers

This extension implicitly enables the WEBGL_color_buffer_float extension (if supported), which allows rendering to 32-bit floating-point color buffers.

Examples

var ext = gl.getExtension('OES_texture_float');

var texture = gl.createTexture();
gl.bindTexture(gl.TEXTURE_2D, texture);

gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.FLOAT, image);

Specifications

Specification	Status	Comment
OES_texture_floatThe definition of 'OES_texture_float' in that specification.	Recommendation	Initial definition.

Browser compatibility

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`OES_texture_float`	Chrome Full support Yes	Edge Full support ≤18	Firefox Full support 6	IE ?	Opera Full support Yes	Safari ?	WebView Android Full support Yes	Chrome Android Full support Yes	Firefox Android ?	Opera Android Full support Yes	Safari iOS ?	Samsung Internet Android Full support Yes

Legend

Full support: Full support
Compatibility unknown: Compatibility unknown