EXT_frag_depth WebGL extensionThe EXT_frag_depth extension for WebGL 1.0 and 2.0 contexts adds setting the depth value of a fragment from within the fragment shader.webgl-extensionsWebGL extensionslimitedhttps://registry.khronos.org/webgl/extensions/EXT_frag_depth/https://developer.mozilla.org/docs/Web/API/EXT_frag_depthapi.EXT_frag_depthhttps://nowyoucanuse.com/features--ext-frag-depth.html