WebGLRenderingContext.isShader()
The WebGLRenderingContext.isShader()
method of the WebGL API returns true
if the
passed WebGLShader
is valid, false
otherwise.
Syntax
GLboolean gl.isShader(shader);
Parameters
- shader
- A
WebGLShader
to check.
Return value
A GLboolean
indicating whether or not the shader is valid.
Examples
Checking a shader
var canvas = document.getElementById('canvas');
var gl = canvas.getContext('webgl');
var shader = gl.createShader(gl.VERTEX_SHADER);
// ...
gl.isShader(shader);
Specifications
Specification | Status | Comment |
---|---|---|
WebGL 1.0 The definition of 'isShader' in that specification. |
Recommendation | Initial definition. |
OpenGL ES 2.0 The definition of 'glIsShader' in that specification. |
Standard | Man page of the OpenGL API. |
Browser compatibility
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