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webgl extension

EXT_color_buffer_float extension

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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 getExtension() method. For more information, see also Using Extensions in the WebGL tutorial.

[!NOTE] 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 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.

const ext = gl.getExtension("EXT_color_buffer_float");

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

Specifications

SpecificationsStandards references are available on the canonical MDN page.

Browser compatibility

Browser compatibilityCompatibility data is available on the canonical MDN page.

See also