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.RBGA16F, 256, 256);
Specifications
| Specification | Status | Comment |
|---|---|---|
| EXT_color_buffer_float The definition of 'EXT_color_buffer_float' in that specification. |
Recommendation | Initial definition for WebGL. |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | ? | 49.0 (49.0) | ? | ? | ? |
| Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | ? | ? | ? | ? | ? | ? |