The WebGLRenderingContext.validateProgram()
method of the WebGL API validates a WebGLProgram
. It checks if it is successfully linked and if it can be used in the current WebGL state.
Syntax
void gl.validateProgram(program);
Parameters
- program
- A
WebGLProgram
to validate.
Return value
None.
Examples
var program = gl.createProgram();
// Attach pre-existing shaders
gl.attachShader(program, vertexShader);
gl.attachShader(program, fragmentShader);
gl.linkProgram(program);
gl.validateProgram(program);
if ( !gl.getProgramParameter( program, gl.LINK_STATUS) ) {
var info = gl.getProgramInfoLog(program);
throw "Could not compile WebGL program. \n\n" + info;
}
gl.useProgram(program);
Specifications
Specification | Status | Comment |
---|---|---|
WebGL 1.0 The definition of 'validateProgram' in that specification. |
Recommendation | Initial definition. |
OpenGL ES 2.0 The definition of 'glValidateProgram' in that specification. |
Standard | Man page of the OpenGL API. |
Browser compatibility
Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | 9 | 12 | 4.0 (2.0) | 11 | 12 | 5.1 |