The WebGL2RenderingContext.getActiveUniforms()
method of the WebGL 2 API retrieves information about active uniforms within a WebGLProgram
.
The WebGL2RenderingContext.getActiveUniforms()
method of the WebGL 2 API retrieves information about active uniforms within a WebGLProgram
.
js
getActiveUniforms(program, uniformIndices, pname)
program
A WebGLProgram
containing the active uniforms.
uniformIndices
An Array
of GLuint
specifying the indices of the active uniforms to query.
pname
A GLenum
specifying which information to query. Possible values:
gl.UNIFORM_TYPE
Returns an Array
of GLenum
indicating the types of the uniforms.
gl.UNIFORM_SIZE
Returns an Array
of GLuint
indicating the sizes of the uniforms.
gl.UNIFORM_BLOCK_INDEX
Returns an Array
of GLint
indicating the block indices of the uniforms.
gl.UNIFORM_OFFSET
Returns an Array
of GLint
indicating the uniform buffer offsets.
gl.UNIFORM_ARRAY_STRIDE
Returns an Array
of GLint
indicating the strides between the elements.
gl.UNIFORM_MATRIX_STRIDE
Returns an Array
of GLint
indicating the strides between columns of a column-major matrix or a row-major matrix.
gl.UNIFORM_IS_ROW_MAJOR
Returns an Array
of GLboolean
indicating whether each of the uniforms is a row-major matrix or not.
Depends on which information is requested using the pname
parameter.
js
const uniformIndices = gl.getUniformIndices(program, [ "UBORed", "UBOGreen", "UBOBlue", ]); const uniformOffsets = gl.getActiveUniforms( program, uniformIndices, gl.UNIFORM_OFFSET, );
Specification |
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WebGL 2.0 Specification # 3.7.16 |
Desktop | Mobile | |||||||||||
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Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
getActiveUniforms |
56 | 79 | 51 | No | 43 | 15 | 58 | 58 | 51 | 43 | 15 | 7.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/WebGL2RenderingContext/getActiveUniforms