This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
The WebGL2RenderingContext.vertexAttribDivisor()
method of the WebGL 2 API modifies the rate at which generic vertex attributes advance when rendering multiple instances of primitives with gl.drawArraysInstanced()
and gl.drawElementsInstanced()
.
Note: When using WebGL 1, the ANGLE_instanced_arrays
extension can provide this method, too.
Syntax
void gl.vertexAttribDivisor(index, divisor);
Parameters
index
- A
GLuint
specifying the index of the generic vertex attributes. divisor
- A
GLuint
specifying the number of instances that will pass between updates of the generic attribute.
Return value
None.
Examples
gl.vertexAttribDivisor(0, 2);
Specifications
Specification | Status | Comment |
---|---|---|
WebGL 2.0 The definition of 'vertexAttribDivisor' in that specification. |
Editor's Draft | Initial definition for WebGL. |
OpenGL ES 3.0 The definition of 'glVertexAttribDivisor' in that specification. |
Standard | Man page of the (similar) OpenGL API. |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support | No support [2] | Nightly build [1] | No support | No support | No support |
Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|
Basic 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
.