我们的志愿者还没有将这篇文章翻译为 中文 (简体)。加入我们帮助完成翻译！
The WebGLRenderingContext.texParameter[fi]() methods of the WebGL API set texture parameters.
Syntax
void gl.texParameterf(GLenum target, GLenum pname, GLfloat param); void gl.texParameteri(GLenum target, GLenum pname, GLint param);
Parameters
- target
- A
GLenumspecifying the binding point (target). Possible values:gl.TEXTURE_2D: A two-dimensional texture.gl.TEXTURE_CUBE_MAP: A cube-mapped texture.- When using a WebGL 2 context, the following values are available additionally:
gl.TEXTURE_3D: A three-dimensional texture.gl.TEXTURE_2D_ARRAY: A two-dimensional array texture.
The pname parameter is a Glenum specifying the texture parameter to set. The param parameter is a GLfloat or GLint specifying the value for the specified parameter pname.
pname |
Description | param |
|---|---|---|
| Available in WebGL 1 | ||
gl.TEXTURE_MAG_FILTER |
Texture magnification filter | gl.LINEAR (default value), gl.NEAREST. |
gl.TEXTURE_MIN_FILTER |
Texture minification filter | gl.LINEAR, gl.NEAREST, gl.NEAREST_MIPMAP_NEAREST, gl.LINEAR_MIPMAP_NEAREST, gl.NEAREST_MIPMAP_LINEAR (default value), gl.LINEAR_MIPMAP_LINEAR. |
gl.TEXTURE_WRAP_S |
Wrapping function for texture coordinate s |
gl.REPEAT (default value),gl.CLAMP_TO_EDGE, gl.MIRRORED_REPEAT. |
gl.TEXTURE_WRAP_T |
Wrapping function for texture coordinate t |
gl.REPEAT (default value),gl.CLAMP_TO_EDGE, gl.MIRRORED_REPEAT. |
Additionally available when using the EXT_texture_filter_anisotropic extension |
||
ext.TEXTURE_MAX_ANISOTROPY_EXT |
Maximum anisotropy for a texture | A GLfloat value. |
| Additionally available when using a WebGL 2 context | ||
gl.TEXTURE_BASE_LEVEL |
Texture mipmap level | Any int values. |
gl.TEXTURE_COMPARE_FUNC |
Texture Comparison function | gl.LEQUAL (default value), gl.GEQUAL, gl.LESS, gl.GREATER, gl.EQUAL, gl.NOT_EQUAL, gl.ALWAYS, gl.NEVER. |
gl.TEXTURE_COMPARE_MODE |
Texture comparison mode | gl.NONE (default value), gl.COMPARE_REF_TO_TEXTURE. |
gl.TEXTURE_MAX_LEVEL |
Maximum texture mipmap array level | Any int values. |
gl.TEXTURE_MAX_LOD |
Texture maximum level-of-detail value | Any float values. |
gl.TEXTURE_MIN_LOD |
Texture minimum level-of-detail value | Any float values. |
gl.TEXTURE_WRAP_R |
Wrapping function for texture coordinate r |
gl.REPEAT (default value), gl.CLAMP_TO_EDGE, gl.MIRRORED_REPEAT. |
Return value
None.
Examples
gl.texParameterf(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR); gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_NEAREST);
Specifications
| Specification | Status | Comment |
|---|---|---|
| WebGL 1.0 The definition of 'texParameter[fi]' in that specification. |
Recommendation | Initial definition for WebGL. |
| OpenGL ES 2.0 The definition of 'glTexParameter' in that specification. |
Standard | Man page of the (similar) OpenGL ES 2.0 API. |
| WebGL 2.0 The definition of 'texParameter[fi]' in that specification. |
Editor's Draft | Updated definition for WebGL. |
| OpenGL ES 3.0 The definition of 'glTexParameter' in that specification. |
Standard | Man page of the (similar) OpenGL ES 3.0 API. |
Browser compatibility
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | 9 | 12 | 4.0 (2.0) | 11 | 12 | 5.1 |
| WebGL 2 | No support [2] | No support | Nightly build [1] | No support | No support | No support |
| Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|---|
| Basic support | ? | 25 | 4.0 (2.0) | 1.0 | ? | 12 | 8.0 |
| WebGL 2 | No support | No support | No support | No support | No support | No support | No support |
[1] WebGL 2 is enabled by default in Firefox Nightly. To enable it in a release version of Firefox, set the preference webgl.enable-prototype-webgl2 to true in about:config.
[2] To use an experimental implementation of WebGL 2 in Chrome, you have to start Chrome with the runtime flag --enable-unsafe-es3-apis.