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OES_texture_half_float_linear

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The OES_texture_half_float_linear extension is part of the WebGL API and allows linear filtering with half 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 available to both, WebGL1 and WebGL2 contexts.

Linear filtering

The OES_texture_half_float extension alone does not allow linear filtering with half floating-point textures. This extension enables this ability.

With the help of this extension, you can now 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 half floating-point textures.

Examples

var halfFloat = gl.getExtension("OES_texture_half_float");
gl.getExtension("OES_texture_half_float_linear");

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

gl.texParameterf(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, halfFloat.HALF_FLOAT_OES, image);

Specifications

Specification Status Comment
OES_texture_half_float_linear
The definition of 'OES_texture_half_float_linear' in that specification.
Recommendation Initial definition.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support ? 30.0 (30.0) ? ? ?
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support ? ? ? ? ? ?

See also

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