EXT_frag_depth
The EXT_frag_depth
extension is part of the WebGL API and enables to set a depth value of a fragment from within the fragment shader.
WebGL extensions are available using the WebGLRenderingContext.getExtension()
method. For more information, see also Using Extensions in the WebGL tutorial.
Examples
Enable the extension:
gl.getExtension('EXT_frag_depth');
Now the output variable gl_FragDepthEXT
is available to set a depth value of a fragment from within the fragment shader:
<script type="x-shader/x-fragment">
void main() {
gl_FragColor = vec4(1.0, 0.0, 1.0, 1.0);
gl_FragDepthEXT = 0.5;
}
</script>
Specifications
Specification | Status | Comment |
---|---|---|
EXT_frag_depth The definition of 'EXT_frag_depth' in that specification. |
Recommendation | Initial definition. |
Browser compatibility
BCD tables only load in the browser
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.