OES_texture_float extension
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
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.
Extended methods
This extension extends WebGLRenderingContext.texImage2D() and WebGLRenderingContext.texSubImage2D():
- The
typeparameter now acceptsgl.FLOAT. - The
pixelsparameter now accepts aFloat32Array.
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
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);
Specifications
| Specification |
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| WebGL OES_texture_float Khronos Ratified Extension Specification |
Browser compatibility
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OES_texture_float
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Legend
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- Full support
- Full support