files/en-us/web/api/oes_texture_float/index.md
{{APIRef("WebGL")}}
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 {{domxref("WebGLRenderingContext.getExtension()")}} method. For more information, see also Using Extensions in the WebGL tutorial.
[!NOTE] This extension is only available to {{domxref("WebGLRenderingContext", "WebGL1", "", 1)}} contexts. In {{domxref("WebGL2RenderingContext", "WebGL2", "", 1)}}, the functionality of this extension is available on the WebGL2 context by default.
This extension extends {{domxref("WebGLRenderingContext.texImage2D()")}} and {{domxref("WebGLRenderingContext.texSubImage2D()")}}:
type parameter now accepts gl.FLOAT.pixels parameter now accepts a {{jsxref("Float32Array")}}.Linear filtering on floating-point textures is not allowed with this extension. If you set the magnification or minification filter in the {{domxref("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 {{domxref("OES_texture_float_linear")}} extension in addition to this extension.
This extension implicitly enables the {{domxref("WEBGL_color_buffer_float")}} extension (if supported), which allows rendering to 32-bit floating-point color buffers.
const ext = gl.getExtension("OES_texture_float");
const texture = gl.createTexture();
gl.bindTexture(gl.TEXTURE_2D, texture);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.FLOAT, image);
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