EXT_color_buffer_float - Web APIs 编辑

The EXT_color_buffer_float extension is part of WebGL and adds the ability to render a variety of floating point formats.

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 2 contexts only.

For WebGL 1, see the EXT_color_buffer_half_float and WEBGL_color_buffer_float extensions.

Extended methods

The following sized formats become color-renderable:

• gl.R16F,
• gl.RG16F,
• gl.RGBA16F,
• gl.R32F,
• gl.RG32F,
• gl.RGBA32F,
• gl.R11F_G11F_B10F.

Color-renderable means:

• The WebGLRenderingContext.renderbufferStorage() method now accepts these formats.
• Framebuffers with attached textures of these formats may now be FRAMEBUFFER_COMPLETE.

Examples

gl must be a WebGL2RenderingContext. This extension does not work in WebGL 1 contexts.

var ext = gl.getExtension('EXT_color_buffer_float');

gl.renderbufferStorage(gl.RENDERBUFFER, gl.RGBA16F, 256, 256);

Specifications

Browser compatibility

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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.

See also

• WebGLRenderingContext.getExtension()
• WebGLRenderingContext.renderbufferStorage()
• EXT_color_buffer_half_float
• WEBGL_color_buffer_float