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 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() :

  • type parameter now accepts gl.FLOAT .
  • 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 ,或 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.


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);


规范 状态 Comment
The definition of 'OES_texture_float' in that specification.
Recommendation 初始定义。


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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 Yes Edge ≤18 Firefox 6 IE ? Opera Yes Safari ? WebView Android Yes Chrome Android Yes Firefox Android ? Opera Android Yes Safari iOS ? Samsung Internet Android Yes