{"action":"created","issue":{"url":"https://api.github.com/repos/WebGLSamples/WebGL2Samples/issues/39","labels_url":"https://api.github.com/repos/WebGLSamples/WebGL2Samples/issues/39/labels{/name}","comments_url":"https://api.github.com/repos/WebGLSamples/WebGL2Samples/issues/39/comments","events_url":"https://api.github.com/repos/WebGLSamples/WebGL2Samples/issues/39/events","html_url":"https://github.com/WebGLSamples/WebGL2Samples/issues/39","id":124831208,"number":39,"title":"ERROR: 0:7: 'gl_VertexID' : undeclared identifier","user":{"login":"shrekshao","id":5031596,"avatar_url":"https://avatars.githubusercontent.com/u/5031596?v=3","gravatar_id":"","url":"https://api.github.com/users/shrekshao","html_url":"https://github.com/shrekshao","followers_url":"https://api.github.com/users/shrekshao/followers","following_url":"https://api.github.com/users/shrekshao/following{/other_user}","gists_url":"https://api.github.com/users/shrekshao/gists{/gist_id}","starred_url":"https://api.github.com/users/shrekshao/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/shrekshao/subscriptions","organizations_url":"https://api.github.com/users/shrekshao/orgs","repos_url":"https://api.github.com/users/shrekshao/repos","events_url":"https://api.github.com/users/shrekshao/events{/privacy}","received_events_url":"https://api.github.com/users/shrekshao/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":4,"created_at":"2016-01-04T20:23:39Z","updated_at":"2016-01-07T22:20:19Z","closed_at":null,"body":"gl_VertexID should be a builtin input for the vertex shader as long as calling a draw call without using GL_ELEMENT_ARRAY_BUFFER, https://www.khronos.org/opengles/sdk/docs/man3/html/gl_VertexID.xhtml\r\n\r\nBut I get `ERROR: 0:7: 'gl_VertexID' : undeclared identifier` when using `gl_VertexID` in 27e326c26e696fb48b9287d274c39593c58f49f0\r\n\r\nSame error when using Firefox, so I think it might be something wrong with my program\r\n\r\n@pjcozzi @kenrussell ask for help.... \r\n"},"comment":{"url":"https://api.github.com/repos/WebGLSamples/WebGL2Samples/issues/comments/169824705","html_url":"https://github.com/WebGLSamples/WebGL2Samples/issues/39#issuecomment-169824705","issue_url":"https://api.github.com/repos/WebGLSamples/WebGL2Samples/issues/39","id":169824705,"user":{"login":"pjcozzi","id":782098,"avatar_url":"https://avatars.githubusercontent.com/u/782098?v=3","gravatar_id":"","url":"https://api.github.com/users/pjcozzi","html_url":"https://github.com/pjcozzi","followers_url":"https://api.github.com/users/pjcozzi/followers","following_url":"https://api.github.com/users/pjcozzi/following{/other_user}","gists_url":"https://api.github.com/users/pjcozzi/gists{/gist_id}","starred_url":"https://api.github.com/users/pjcozzi/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/pjcozzi/subscriptions","organizations_url":"https://api.github.com/users/pjcozzi/orgs","repos_url":"https://api.github.com/users/pjcozzi/repos","events_url":"https://api.github.com/users/pjcozzi/events{/privacy}","received_events_url":"https://api.github.com/users/pjcozzi/received_events","type":"User","site_admin":false},"created_at":"2016-01-07T22:20:19Z","updated_at":"2016-01-07T22:20:19Z","body":"Thanks for submitting the issue, @kenrussell!  We have plenty to work on in the meantime!"}}