The EXT_color_buffer_half_float extension is part of the WebGL API and adds the ability to render to 16-bit floating-point color buffers.
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 WebGL 1 contexts only. For WebGL 2, use the EXT_color_buffer_float extension.
The OES_texture_half_float extension implicitly enables this extension.
Constants
ext.RGBA16F_EXT- RGBA 16-bit floating-point color-renderable format.
ext.RGB16F_EXT- RGB 16-bit floating-point color-renderable format.
ext.FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE_EXT- ?
ext.UNSIGNED_NORMALIZED_EXT- ?
Extended methods
This extension extends WebGLRenderingContext.renderbufferStorage():
- The
internalformatparameter now acceptsext.RGBA16F_EXTandext.RGBA16F_EXT.
Examples
var ext = gl.getExtension('EXT_color_buffer_half_float');
gl.renderbufferStorage(gl.RENDERBUFFER, ext.RBGA16F_EXT, 256, 256);
Specifications
| Specification | Status | Comment |
|---|---|---|
| EXT_color_buffer_half_float The definition of 'EXT_color_buffer_half_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.
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
EXT_color_buffer_half_float | Chrome Full support 63 | Edge Full support 17 | Firefox Full support 30 | IE ? | Opera ? | Safari ? | WebView Android Full support 63 | Chrome Android Full support 63 | Firefox Android ? | Opera Android ? | Safari iOS ? | Samsung Internet Android Full support 8.0 |
Legend
- Full support
- Full support
- Compatibility unknown
- Compatibility unknown