OES_texture_float

OES_texture_float extension is part of the WebGL API and exposes floating-point pixel types for textures.

WebGL extensions are available using the WebGLRenderingContext.getExtension() method. For more information, see also Using Extensions WebGL tutorial .

Availability: This extension is only available to WebGL1 contexts. In WebGL2 , the functionality of this extension is available on the WebGL2 context by default.

Extended methods

This extension extends WebGLRenderingContext.texImage2D() and WebGLRenderingContext.texSubImage2D() :

  • type parameter now accepts gl.FLOAT .
  • pixels parameter now accepts an ArrayBufferView of type Float32Array .

Limitation: Linear filtering

Linear filtering on floating-point textures is not allowed with this extension. If you set the magnification or minification filter in the WebGLRenderingContext.texParameter() method to one of gl.LINEAR , gl.LINEAR_MIPMAP_NEAREST , gl.NEAREST_MIPMAP_LINEAR ,或 gl.LINEAR_MIPMAP_LINEAR , and use floating-point textures, the texture will be marked as incomplete.

To use linear filtering on floating-point textures, enable the OES_texture_float_linear extension in addition to this extension.

Floating-point color buffers

This extension implicitly enables the WEBGL_color_buffer_float extension (if supported), which allows rendering to 32-bit floating-point color buffers.

范例

var ext = gl.getExtension('OES_texture_float');
var texture = gl.createTexture();
gl.bindTexture(gl.TEXTURE_2D, texture);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.FLOAT, image);
					

规范

规范 状态 Comment
OES_texture_float
The definition of 'OES_texture_float' in that specification.
Recommendation 初始定义。

浏览器兼容性

更新 GitHub 上的兼容性数据
Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
OES_texture_float Chrome Yes Edge ≤18 Firefox 6 IE ? Opera Yes Safari ? WebView Android Yes Chrome Android Yes Firefox Android ? Opera Android Yes Safari iOS ? Samsung Internet Android Yes

图例

完整支持
完整支持
兼容性未知
兼容性未知

另请参阅